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Archives of Cosworth Vega Club

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Postby h-bot » Tue Jan 28, 2003 10:08 am

From: mikeb_REMOVE_810636_THIS_@yahoo.com

From what I have discovered, you don't want to find too much of a project.
You will discover that Vega parts, in general, are harder to find, than the
run of the mill Chevy Camaro or Chevelle, and anything Cosworth is 30 times
harder to come up with. You cannot go down to any parts store, and come
home with anything Cosworth, except the oil filter and general Vega parts.
The club is pretty much the only way for you to get CV specific parts. I
had restored 2 Deloreans, 4 Porsches, and a Ferrari, and had an easier time
finding parts for them, than my little saddle Cosworth. On that note, if
you want an unusual CV, buy a colored one. Most people don't know that
Cosworth Vegas came in any colors, other than black. As to the injection
being a pain, I think it was more of a pain, when the Cosworths came out,
because people weren't used to working on injection systems. I think folks
are more comfortable and their thought patterns are more in tune with
injection repairs today. I have the Weber carbs on mine, and I really
didn't feel like undoing Mr. Hutton's handy work, because it runs well. If
my car didn't have the deluxe Hutton treatment, and just a set of carbs
thrown on it, I would probably revert it back to the original injection set
up. Unless the collector market does a 180, the carbs don't seem to cause a
significant loss of value, when these overpriced Vega GTs go across the
auction blocks. As for cars that have set forever, they are ok for museum
duty, but as in all things mechanical, the worst thing you can do to them is
not use them. Anything mechanical, or electro-mechanical will deep 6 if it
is let sitting long enough. Through out this bulletin board you will read
about plugged injectors, leaking seals, corroded and porous aluminum
castings, as well as other running problems. Many of these problems are
directly related to the inactivity of the mechanicals. The worst vehicle I
ever bought was purchased from a museum, with 200 miles on the clock. I can
say from experience, that I would rather acquire a vehicle that was
occasionally driven, than someone's immobile show car. I am sure folks will
disagree with some of what I say, but that is my spin on Cosworths, and
collecting cars in general. I buy things I can drive, and have fun with,
and leave the displays for museums.

> -----Original Message-----
> From: swflamxer <<a href="/group/cosworthvegas/post?protectID=023212044098056237005218148064176040134105031192234060127242141201210126053061151110147">Bruce_W@g...</a>>
> [SMTP:<a href="/group/cosworthvegas/post?protectID=023212044098056237005218148064176040134105031192234060127242141201210126053061151110147">Bruce_W@g...</a>]
> Sent: Tuesday, January 28, 2003 1:34 PM
> To: <a href="/group/cosworthvegas/post?protectID=219233066105193209050199029077192253163098100009128121188190230091025019053061151110147">cosworthvegas@yahoogroups.com</a>
> Subject: [Cosworth Vegas] I'm so Confused
>
> I am still looking and doing research on purchasing my first Cosworth
> but the more I talk and look , the more confused I get. I would
> love to hear some feedback. I am in south Florida so more than
> likely I will have to ship the car... that doesnt bother me but to
> pay that much for a project car doesn't seem to make sense so project
> is out of the question out of state.. besides, I am not so much of a
> gear head so I kind of wanted something that didnt need much and
> would be low maintenence engine wise-- maybe that doesnt exist I dont
> know... I heard that the original injectors are quite a pain in the $
> %#*@@ and a better way to go is with Webber Carbs... Is that
> true..??? Does that also improve performance?? Does that make
> the car a little more reliable???? How much can or should you do to
> an original Cosworth before it becomes (transforms) to something
> else?? there is a Cosworth orange one on Collector car.com with a
> 350 twin 4's out of the hood... Is that really a Cosworth or just a
> vega V-8 with a Cosworth body... ??
>
> Well I thought the better way to go was with a super low milage CV
> that had been in storage a long time...Well I found a couple, one
> in particular that was bought from Oiriginal owner and driving 1 year
> and Stored in 1983 where it has been sitting since never started...
> The car has 15k on the clock and paint is good and inter perfect.....
> but I have heard horror storries on what happens to an engine that
> sits for 20 yrs and what the coolant can do???? what am I in for
> if I buy something like that engine wise???? Can the whole inside of
> the engine be a corroded mess???? or is it just a matter of
> replacing all the rubber seals, gaskets and good flush???
>
> What about getting a colored one, are they more desirable... I
> like the orange ones cool.. or are the blacks the ones that sell and
> people want??????
>
> One more question... looking at some of the engines of these super
> low milage CV's, they look whipped.... is it a possibility that some
> of these were dissconnected (speedo) and driven around over the
> years...??? I cant understand how an engine can look so old and bad
> and oily with only 1K or 10K on the clock...
>
> Maybe I should just get a V-8 vega, I might have more fun with that
> and it has a newer engine, less sophisticated in it... but that is
> not what I want ,,,,I want a CV.... what to get.........???? so
> confused...... Would like to hear some comments... what should I
> watch out for...
>
> thansk so much
>
> Bruce
> Fort Myers , Florida
>
>
> Hey also anyone in South West Florida (Sarasota, Naples or Fort
> Myers have one of these and a club member --just curious if I will
> be the only one after I get one-- I've never seen one at a car show
> down here)
>
>
>
>
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[This is message #10440 by user mikeb on Yahoo! Group Cosworth Vegas: http://groups.yahoo.com/group/cosworthvegas ]
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Postby h-bot » Wed Jan 29, 2003 5:05 am

From: Bruce_W_REMOVE_667365_THIS_@yahoo.com

All that I know is that he bought the gas tank last year of a lawyer in
Chicago--said some fellow that is attorney in Chicago hs alot collecitons
old him the tank




Bruce Weller
VP of Engineering and Consulting Services
Global Staffing Resources, Inc.
Cape Coral, Fla
(239) 541-0119 X103
www.GlobalStaffingRes.com

-----Original Message-----
From: Mark A. Rock <<a href="/group/cosworthvegas/post?protectID=029166091163127190025067203043176223041146031189251049173150166091061">markrock@c...</a>>
[mailto:<a href="/group/cosworthvegas/post?protectID=029166091163127190025067203043176223041146031189251049173150166091061">markrock@c...</a>]
Sent: Tuesday, January 28, 2003 74 PM
To: <a href="/group/cosworthvegas/post?protectID=219233066105193209050199029077192253163098100009128121188190230091025019053061151110147">cosworthvegas@yahoogroups.com</a>
Subject: [Cosworth Vegas] Re: I'm so Confused


Bruce:

How much of a project guy are you? Can you pull the cam carrier off
and replace the cam carrier gasket? It is a ton of work.

Can you put it back on without dropping the cam followers and the
shims all over the engine compartment? Without the proper tools, it
is not easy.

Do you have a tool to properly adjust tension on the cam belt?

Do you have to tool to depress the cam followers to adjust the valve
lash after the gasket has been replaced?

Do you have the tools and knowhow to remove the hood?

Do you want to do all these things?

Do you want to do some others as well? Like refinishing the cam (not
valve) cover? Like sanding and priming and painting where the paint
has curled?

Do you know whether the coolant has been changed regularly, and do
you know the condition of the tops of the cylinder walls?

Do you care about Concours? New paint puts you in a different class.

Is low mileage important to you? How many miles do you intend to
drive this car?

What is your purpose in buying this car? An investment? For fun?
On a whim? Until we know why you are buying this car, I'm not sure
we can give you good advice.

You say you don't want to have to do a rebuild. OK. So why are you
so interested in a car that you don't know anything about, that has
an engine that looks so bad that it raises red flags over whether the
claimed mileage is accurate and that just might have to have the
block sleeved? Why aren't you more comfortable with a car that has
had the engine apart and redone, and even "breathed on" a bit, one
that you can be certain is in good condition, and is cheaper to
boot? What makes you reject Britt's car? The 104,000 miles? At
153,000 miles the wear in the stock bores in my car was NEGLIGIBLE.
Could it have benefitted from new rings? Sure. But it still ran
strong. It still passed emissions checks. Moreover, the engine in
Britt's car is sleeved, freshly rebuilt, doesn't leak any oil, gets
good gas mileage, and the receipts are there to document it.

There is an old expression that fits here. Better the devil you know
than the devil you don't. If the Cosworth you are considering were
all original, including especially the paint, then I would say that
it was and ultimately would be worth more, and would be worth the
risk. Since it has been repainted, and since the condition of the
tops of the cylinder bores is unknown, IMHO its value is diminished
significantly. I repeat again, a car that has been driven but been
well maintained is often the better choice.

Finally, the odometer on Britt's car reads 004000. The odometer on
the car you are considering reads 015000. Which car APPEARS to the
viewing public to have more miles?

Finally, what is the name of the owner of this car, and what is its
number. I may have sold him the gas tank.

Mark






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[This is message #10452 by user Bruce_W on Yahoo! Group Cosworth Vegas: http://groups.yahoo.com/group/cosworthvegas ]
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Postby h-bot » Thu Jan 30, 2003 7:22 am

From: mike.bormann_REMOVE_423368_THIS_@yahoo.com

Hey Brian, when you say that the rear carpet is a bit too small, do you mean
too short, or too narrow? By how much?
Please be sure to post results of how the front carpet fits once you have it
installed.
I received all of the carpet samples I had ordered from Auto Custom Carpets.
Since you are only allowed 3 samples, I ordered 3, and had 2 friends order 3
each of different colors as well. Here is a list of the colors I ordered:
7037 - Camel Tan
4640 - Dark Saddle
7140 - Medium Saddle
7295 - Medium Doeskin
830 - Buckskin
8384 Desert Tan
7099 - Antelope
820 - Saddle
7577 - Gold
The results: For my car, the tag on the original carpet states "DK SADDLE".
Of all 9 choices, the # 4640 dark saddle matches the unfaded parts of the
carpet very well. The best color choice for sure. The second best match was
the # 830 Buckskin sample. None of the others were even in the running for
being a good color match. So I will be going with the 4640 Dark Saddle when
I order.
Thanks,
Mike


-----Original Message-----
From: wheatchex1 [mailto:<a href="/group/cosworthvegas/post?protectID=091233212180056219138097203245147187078145038136183193071193172194143142">no_reply@yahoogroups.com</a>]
Sent: Wednesday, January 29, 2003 11:43 AM
To: <a href="/group/cosworthvegas/post?protectID=219233066105193209050199029077192253163098100009128121188190230091025019053061151110147">cosworthvegas@yahoogroups.com</a>
Subject: [Cosworth Vegas] Carpet once more


Well I have the new carpet in hand I ordered from ACC. I ordered the
76 Cosworth Vega passenger area (p/n 2700) and the cargo area (p/n
2702) carpet sets for my 76 Cosworth. I took the passenger area
carpet and laid it front to rear across the roof to get an idea if it
is the correct length and it appears that it is correct. The cargo
area set on the other hand has a slight problem. The main piece that
covers the spare tire hatch fits fine. The small piece that gets
glued to the hinged metal panel on the rear seat is a bit on the
small side. Fortunately I ordered an extra 2 yds of material that I
am going to have incorporated into the rear seat cover. With the
excess I will have a new panel piece cut and finished to match the
original.

Colorwise I ordered the Dark saddle and it appears to look darn close
to the orignal in the unfaded spots.

Brian


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[This is message #10458 by user mike.bormann on Yahoo! Group Cosworth Vegas: http://groups.yahoo.com/group/cosworthvegas ]
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Postby h-bot » Thu Jan 30, 2003 10:13 am

From: wheatchex1_REMOVE_207223_THIS_@yahoo.com

Mike,
Two things. One if you order the 4640 dark saddle, you can not
return the carpet to ACC for any reason. Dark Saddle is not an
ACC "recognized" factory color according to their "experts" and is
considered custom. We need Dale Malin to talk to ACC to get them to
revisit their Dark Saddle/Buckskin color issue and make a
determination for the official color. Second, I will measure the
small piece of carpet when I get home tonight and let you know what
the differences are and post them here.

One other thing I forgot to mention previously is that the driver
heel pad is not the same as the original.

Brian

--- In <a href="/group/cosworthvegas/post?protectID=219233066105193209050199029077192253163098100009128121188190230091025019053061151110147">cosworthvegas@yahoogroups.com</a>, Mike Bormann
<<a href="/group/cosworthvegas/post?protectID=029176211056035202112061072140006090136179139046209">mike.bormann@c...</a>> wrote:
> Hey Brian, when you say that the rear carpet is a bit too small, do
you mean
> too short, or too narrow? By how much?
> Please be sure to post results of how the front carpet fits once
you have it
> installed.
> I received all of the carpet samples I had ordered from Auto Custom
Carpets.
> Since you are only allowed 3 samples, I ordered 3, and had 2
friends order 3
> each of different colors as well. Here is a list of the colors I
ordered:
> 7037 - Camel Tan
> 4640 - Dark Saddle
> 7140 - Medium Saddle
> 7295 - Medium Doeskin
> 830 - Buckskin
> 8384 Desert Tan
> 7099 - Antelope
> 820 - Saddle
> 7577 - Gold
> The results: For my car, the tag on the original carpet states "DK
SADDLE".
> Of all 9 choices, the # 4640 dark saddle matches the unfaded parts
of the
> carpet very well. The best color choice for sure. The second best
match was
> the # 830 Buckskin sample. None of the others were even in the
running for
> being a good color match. So I will be going with the 4640 Dark
Saddle when
> I order.
> Thanks,
> Mike
>
>
> -----Original Message-----
> From: wheatchex1 [mailto:<a href="/group/cosworthvegas/post?protectID=091233212180056219138097203245147187078145038136183193071193172194143142">no_reply@yahoogroups.com</a>]
> Sent: Wednesday, January 29, 2003 11:43 AM
> To: <a href="/group/cosworthvegas/post?protectID=219233066105193209050199029077192253163098100009128121188190230091025019053061151110147">cosworthvegas@yahoogroups.com</a>
> Subject: [Cosworth Vegas] Carpet once more
>
>
> Well I have the new carpet in hand I ordered from ACC. I ordered
the
> 76 Cosworth Vega passenger area (p/n 2700) and the cargo area (p/n
> 2702) carpet sets for my 76 Cosworth. I took the passenger area
> carpet and laid it front to rear across the roof to get an idea if
it
> is the correct length and it appears that it is correct. The cargo
> area set on the other hand has a slight problem. The main piece
that
> covers the spare tire hatch fits fine. The small piece that gets
> glued to the hinged metal panel on the rear seat is a bit on the
> small side. Fortunately I ordered an extra 2 yds of material that
I
> am going to have incorporated into the rear seat cover. With the
> excess I will have a new panel piece cut and finished to match the
> original.
>
> Colorwise I ordered the Dark saddle and it appears to look darn
close
> to the orignal in the unfaded spots.
>
> Brian
>
>
> To unsubscribe from this group, send an email to:
> <a href="/group/cosworthvegas/post?protectID=219233066105193209050199029077192253163090163234077193120193166002198029017221026039146196035042085019226024145102216174041">cosworthvegas-unsubscribe@yahoogroups.com</a>
>
>
>
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[This is message #10459 by user wheatchex1 on Yahoo! Group Cosworth Vegas: http://groups.yahoo.com/group/cosworthvegas ]
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Postby h-bot » Thu Jan 30, 2003 11:52 am

From: mike.bormann_REMOVE_126704_THIS_@yahoo.com

By any chance, have you called them to tell them this? I am curious as to
what they would do about it. I wonder if they would let you exchange since
it is a "custom color", and if they will change the measurements that they
show in their system, and their molds.
Thanks for the update,
Mike

-----Original Message-----
From: wheatchex1 [mailto:<a href="/group/cosworthvegas/post?protectID=091233212180056219138097203245147187078145038136183193071193172194143142">no_reply@yahoogroups.com</a>]
Sent: Thursday, January 30, 2003 2:37 PM
To: <a href="/group/cosworthvegas/post?protectID=219233066105193209050199029077192253163098100009128121188190230091025019053061151110147">cosworthvegas@yahoogroups.com</a>
Subject: [Cosworth Vegas] Re:Carpet once more


Here are the measurements of the small rectangular piece. The
original is 36 3/4 by 9 5/8 inches. The replacement from ACC is 36
1/2 by 8 3/8 inches. A quarter inch on the length is no big deal,
but an inch and an eighth is quite a bit on the width.

Brian



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[This is message #10461 by user mike.bormann on Yahoo! Group Cosworth Vegas: http://groups.yahoo.com/group/cosworthvegas ]
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Postby h-bot » Fri Jan 31, 2003 2:08 am

From: tehutton_REMOVE_611530_THIS_@yahoo.com

I don't know the details (amount of boost et al) the led to the
demise of the original block in my car, 0209, but it was
turbocharged, and the block did crack near number 3, according to the
car's previous owner. He was busy installing a twin-turbo set up on a
v-6 79 Monte Carlo when I bought the CV with a fresh, normally
aspirated, sleeved motor ...

-- In <a href="/group/cosworthvegas/post?protectID=219233066105193209050199029077192253163098100009128121188190230091025019053061151110147">cosworthvegas@yahoogroups.com</a>, "Britt <<a href="/group/cosworthvegas/post?protectID=200176018237235197240138203004129208071">kiva5198@h...</a>>"
<<a href="/group/cosworthvegas/post?protectID=200176018237235197240138203004129208071">kiva5198@h...</a>> wrote:
> Be prepared for a lot of negative comments to follow my optimism.
> We have had this debate here before and everyone seems to believe
> that the 300 hp mark is it, I don't know of many 300 hp n/a
Cosworths
> so thier decision is subjective only and based purely on anecdotal
> evidence. soloII74, Kevin has built several 140 single cam Vegas,
> turbo, over 300 and has had some issues with the block. But he is
the
> only person I know of that has actually experienced this first hand.
>
> Britt
>
>
> --- In <a href="/group/cosworthvegas/post?protectID=219233066105193209050199029077192253163098100009128121188190230091025019053061151110147">cosworthvegas@yahoogroups.com</a>, Mike Vee <<a href="/group/cosworthvegas/post?protectID=219233066112082198015038190036129">cossie@e...</a>> wrote:
> > Thanks Britt,
> > that was pretty much what I was hoping to hear.
> > By the way, I was kidding about the nitro.
> > Wow, I bet that was fun. What speed did you reach?
> > Mike
> >
> > At 05:41 AM 1/31/03 +0000, you wrote:
> > >I have a motor that ran 30% and 50% nitro at Bonneville last
> season,
> > >10,000 rpm, 9 back to back passes, no problems. It is about 14:1
> > >compression with big cams, aluminum rods, p&p head. There is at
> least
> > >one member running in the 430 hp range on a sleeved block at @26
> psi.
> > >It can be done. Remember it is more stressful on the parts to
> build a
> > >n/a motor at 300 hp than to build a low compression high boost
> > >intercooled motor at 300 hp. I know there is another one inthe
> works
> > >right now, we'll see it on the dyno in the future.




[This is message #10469 by user tehutton on Yahoo! Group Cosworth Vegas: http://groups.yahoo.com/group/cosworthvegas ]
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Postby h-bot » Fri Jan 31, 2003 3:07 am

From: mikeb_REMOVE_966291_THIS_@yahoo.com

I have read couple accounts, of cracking of the upper cylinder bores, but
both were experienced on the preproduction engines, that Cosworth installed
in Formula cars, for testing. The Porsche 944 and 928 aluminum blocks won't
show any evidence of cracking, unless they are boosted past 16 lbs, for an
extended endurance type run. Sleeving was normally used in endurance racing
engines, because of the cracking issue. We also put oil jets, for piston
cooling, on the rods, when a dry sump was used. My CV's block is sleeved.
I know it detracts from the all aluminum aura, but considering a street car
takes more abuse than a track car, I feel more comfortable with steel bores.
My street 928 is still running all aluminum at 185000 miles, and passes
emissions easily.

> -----Original Message-----
> From: tehutton [SMTP:<a href="/group/cosworthvegas/post?protectID=091233212180056219138097203245147187078145038136183193071193172194143142">no_reply@yahoogroups.com</a>]
> Sent: Friday, January 31, 2003 79 AM
> To: <a href="/group/cosworthvegas/post?protectID=219233066105193209050199029077192253163098100009128121188190230091025019053061151110147">cosworthvegas@yahoogroups.com</a>
> Subject: [Cosworth Vegas] Re: Engine Block strength questions
>
> I don't know the details (amount of boost et al) the led to the
> demise of the original block in my car, 0209, but it was
> turbocharged, and the block did crack near number 3, according to the
> car's previous owner. He was busy installing a twin-turbo set up on a
> v-6 79 Monte Carlo when I bought the CV with a fresh, normally
> aspirated, sleeved motor ...
>
> -- In <a href="/group/cosworthvegas/post?protectID=219233066105193209050199029077192253163098100009128121188190230091025019053061151110147">cosworthvegas@yahoogroups.com</a>, "Britt <<a href="/group/cosworthvegas/post?protectID=200176018237235197240138203004129208071">kiva5198@h...</a>>"
> <<a href="/group/cosworthvegas/post?protectID=200176018237235197240138203004129208071">kiva5198@h...</a>> wrote:
> > Be prepared for a lot of negative comments to follow my optimism.
> > We have had this debate here before and everyone seems to believe
> > that the 300 hp mark is it, I don't know of many 300 hp n/a
> Cosworths
> > so thier decision is subjective only and based purely on anecdotal
> > evidence. soloII74, Kevin has built several 140 single cam Vegas,
> > turbo, over 300 and has had some issues with the block. But he is
> the
> > only person I know of that has actually experienced this first hand.
> >
> > Britt
> >
> >
> > --- In <a href="/group/cosworthvegas/post?protectID=219233066105193209050199029077192253163098100009128121188190230091025019053061151110147">cosworthvegas@yahoogroups.com</a>, Mike Vee <<a href="/group/cosworthvegas/post?protectID=219233066112082198015038190036129">cossie@e...</a>> wrote:
> > > Thanks Britt,
> > > that was pretty much what I was hoping to hear.
> > > By the way, I was kidding about the nitro.
> > > Wow, I bet that was fun. What speed did you reach?
> > > Mike
> > >
> > > At 05:41 AM 1/31/03 +0000, you wrote:
> > > >I have a motor that ran 30% and 50% nitro at Bonneville last
> > season,
> > > >10,000 rpm, 9 back to back passes, no problems. It is about 14:1
> > > >compression with big cams, aluminum rods, p&p head. There is at
> > least
> > > >one member running in the 430 hp range on a sleeved block at @26
> > psi.
> > > >It can be done. Remember it is more stressful on the parts to
> > build a
> > > >n/a motor at 300 hp than to build a low compression high boost
> > > >intercooled motor at 300 hp. I know there is another one inthe
> > works
> > > >right now, we'll see it on the dyno in the future.
>
>
>
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[This is message #10470 by user mikeb on Yahoo! Group Cosworth Vegas: http://groups.yahoo.com/group/cosworthvegas ]
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Postby h-bot » Fri Jan 31, 2003 7:36 am

From: cossie_REMOVE_960607_THIS_@yahoo.com

Thanks Britt,
that was pretty much what I was hoping to hear.
By the way, I was kidding about the nitro.
Wow, I bet that was fun. What speed did you reach?
Mike

At 05:41 AM 1/31/03 +0000, you wrote:
>I have a motor that ran 30% and 50% nitro at Bonneville last season,
>10,000 rpm, 9 back to back passes, no problems. It is about 14:1
>compression with big cams, aluminum rods, p&p head. There is at least
>one member running in the 430 hp range on a sleeved block at @26 psi.
>It can be done. Remember it is more stressful on the parts to build a
>n/a motor at 300 hp than to build a low compression high boost
>intercooled motor at 300 hp. I know there is another one inthe works
>right now, we'll see it on the dyno in the future.




[This is message #10466 by user cossie on Yahoo! Group Cosworth Vegas: http://groups.yahoo.com/group/cosworthvegas ]
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Postby h-bot » Fri Jan 31, 2003 9:30 am

From: kiva5198_REMOVE_264599_THIS_@yahoo.com

Be prepared for a lot of negative comments to follow my optimism.
We have had this debate here before and everyone seems to believe
that the 300 hp mark is it, I don't know of many 300 hp n/a Cosworths
so thier decision is subjective only and based purely on anecdotal
evidence. soloII74, Kevin has built several 140 single cam Vegas,
turbo, over 300 and has had some issues with the block. But he is the
only person I know of that has actually experienced this first hand.

Britt


--- In <a href="/group/cosworthvegas/post?protectID=219233066105193209050199029077192253163098100009128121188190230091025019053061151110147">cosworthvegas@yahoogroups.com</a>, Mike Vee <<a href="/group/cosworthvegas/post?protectID=219233066112082198015038190036129">cossie@e...</a>> wrote:
> Thanks Britt,
> that was pretty much what I was hoping to hear.
> By the way, I was kidding about the nitro.
> Wow, I bet that was fun. What speed did you reach?
> Mike
>
> At 05:41 AM 1/31/03 +0000, you wrote:
> >I have a motor that ran 30% and 50% nitro at Bonneville last
season,
> >10,000 rpm, 9 back to back passes, no problems. It is about 14:1
> >compression with big cams, aluminum rods, p&p head. There is at
least
> >one member running in the 430 hp range on a sleeved block at @26
psi.
> >It can be done. Remember it is more stressful on the parts to
build a
> >n/a motor at 300 hp than to build a low compression high boost
> >intercooled motor at 300 hp. I know there is another one inthe
works
> >right now, we'll see it on the dyno in the future.




[This is message #10467 by user kiva5198 on Yahoo! Group Cosworth Vegas: http://groups.yahoo.com/group/cosworthvegas ]
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Postby h-bot » Sat Feb 01, 2003 3:22 am

From: twincams_REMOVE_425802_THIS_@yahoo.com

Mark

No Response

Later

Tim



[This is message #10491 by user twincams on Yahoo! Group Cosworth Vegas: http://groups.yahoo.com/group/cosworthvegas ]
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Postby h-bot » Sat Feb 01, 2003 3:23 am

From: twincams_REMOVE_755701_THIS_@yahoo.com

Mark

Oops - No Response, A Racer has to keep some secrets.

Later

Tim



[This is message #10492 by user twincams on Yahoo! Group Cosworth Vegas: http://groups.yahoo.com/group/cosworthvegas ]
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Postby h-bot » Sat Feb 01, 2003 3:50 am

From: jamesrkays_REMOVE_748333_THIS_@yahoo.com

Thanks, I suspected that you would know. Jim
--- doctorduke <<a href="/group/cosworthvegas/post?protectID=091233212180056219138097203245147187078145038136183193071193172194143142">no_reply@yahoogroups.com</a>> wrote:
> --- In <a href="/group/cosworthvegas/post?protectID=219233066105193209050199029077192253163098100009128121188190230091025019053061151110147">cosworthvegas@yahoogroups.com</a>, jim kays
> <<a href="/group/cosworthvegas/post?protectID=045166014056099209213098164219114164071048139">jamesrkays@y...</a>>
> wrote:
> > What kind of piston clearances are you using for a
> > linered block?
> >
> > What kind of rod lengths are you using for non
> stock
> > applications on a 2000 cc engine?
> >
> > Are the stock cosworth rods a match for any of the
> > chevy V8 rods?
> > Thoughts????
> > Jim
>
> The OEM piston skirt clearance listed in the shop
> manual is .002-.003"
> and these should be maintained in a sleeved engine
> with a high silicon
> forged aluminum pistons similar to the OEM pistons.
>
> The OEM 5.7" rods are fine for a 3.16" stroke engine
> or the longer
> stroke Vega 140. Rod length is mostly a
> non-sequitur - lengthening
> the rod centers a few tenths of an inch one is not
> going make a
> significant change in the character of engine
> output.
>
> The CV and Vega rods are the same dimensions as the
> inline six and old
> four cylinder Chevy II/Iron Duke. They have the
> same center distance
> as the SB rods, but the big end is wider - 1.02"
> versus .980" for a SB
> rod if memory serves.
>
> Duke
>
>


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[This is message #10483 by user jamesrkays on Yahoo! Group Cosworth Vegas: http://groups.yahoo.com/group/cosworthvegas ]
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Postby h-bot » Sat Feb 01, 2003 4:10 am

From: twincams_REMOVE_751742_THIS_@yahoo.com

Mark

The dome top pistons you have are 3.533" diameter JE Recomends a .0030"
clearance measured .500" from the bottom of the skirt. FYI these pistons have a
dome/dish CC amount of 1.830 positive CC's for a Compression Ratio of 11.01 to
1 with a thin head gasket and a 40.50 CC Chamber.

Regarding the PolyDyn here is information from their web site at PolyDyn.com:

"Polydyn Performance Engine Coatings are applied so that a .0002" to .0007"
overbuild remained on the surface, but there's a lot more to these coatings
than meet the eye. PolyDyn fluoropolymers actually become a part of the coated
materials surface; .005" to 0.50" actual penetration depending on the material.
While some overbuild can be removed, it is virtually impossible to extract a
polymer from the pores of the metal to which it is applied. Consequently,
PolyDyn coatings will last almost indefinitely."

Since the overbuild wears off over time and with the consistency of
manufacturing tollerences acheived with CNC Machines I just tell my machinist
to finish the bore to 3.5355" or .0025" clearance. This allows for about .0005"
of overbuild on the piston, which is the average overbuild.

Now on the ceramic heat coating ....................

Later

Tim



[This is message #10493 by user twincams on Yahoo! Group Cosworth Vegas: http://groups.yahoo.com/group/cosworthvegas ]
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Postby h-bot » Sat Feb 01, 2003 4:40 am

From: twincams_REMOVE_541373_THIS_@yahoo.com

Actually the connecting rods for a Pontiac Iron Duke are the same as the Small
Block Chevy so they can't be used on a Cosworth or Vega Engine. Source -
General Motors Performance Parts Catalog PP No. 3 Page 98, Group 0.603.

The Crower Sportsman Connecting rod is an Excellent Choice for a Replacement
Upgrade. Dick Meyers - of the split block fame - told me they were the "best
bang for the buck". The last few sets I purchased were $230.00 per set.

Later

Tim



[This is message #10484 by user twincams on Yahoo! Group Cosworth Vegas: http://groups.yahoo.com/group/cosworthvegas ]
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Postby h-bot » Sat Feb 01, 2003 4:42 am

From: twincams_REMOVE_168510_THIS_@yahoo.com

I would actually recomend a .003" to .0035" clearance on a sleeved engine.

Later

Tim



[This is message #10485 by user twincams on Yahoo! Group Cosworth Vegas: http://groups.yahoo.com/group/cosworthvegas ]
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