1st Time Out

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Re: 1st Time Out

Postby JohnP2 » Tue Jul 22, 2008 9:57 am

Sounds great, love the black side pipes.
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Re: 1st Time Out

Postby danfigg » Thu Jul 24, 2008 11:33 am

Sounds like the heads are the Cork. Here are my motor specs and we ran almost identicle numbers. 383-60 over brodix street heads 10to 1 compression 495 solid lifter cam 5.7 rods. 750 edelbrock victor JR intake turbo 350 3000 stall 373 gears --------danfigg
60 -1.86
330- 5.206
1/8- 8.014
MPH- 87.40
1000- 10.439
1/4 -12.495
mph -109.44
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Re: 1st Time Out

Postby Hoonbash » Thu Jul 31, 2008 4:46 pm

Interesting stuff Gents.

I have gone through a bad spell with the car in the last while.I found that I could stall it out to 4 grand on the street with no wheel spin so I was encouraged by that so I also bought new bigger E/T streets and was anxious to hit the track to see what the new launch RPM would bring for time.

Well I had it stalled at 4 grand on the track and let it rip,BANG.....SHIT. I managed to pull the passenger upper control arm spherical rod-end right out of the arm,bent the shock rod,bent the lower driver control arm mounting bolt and pad,rubbed the wheel-well paint off in a few spots and to add insult to injury the track guys made me travel the rest of the strip which destroyed my new tire.

Now I've lengthened the uppers so they are threaded in by at least 2 inches,no danger of pulling the threads out again,BUT,sooner or later the upper mounts will need to be addressed (looked at after every run!!).Also added a Weiand street tunnel ram which needs fine tuning later on but for now runs good and it pulls hard.Off to the track I go with hopefully NO CARNAGE

Hoonbash
Weiand Street Tunnel Ram 005 (Small).jpg
Weiand Street Tunnel Ram 005 (Small).jpg (64.48 KiB) Viewed 1582 times
Weiand Street Tunnel Ram 006 (Small).jpg
Weiand Street Tunnel Ram 006 (Small).jpg (63.98 KiB) Viewed 1582 times
Weiand Street Tunnel Ram 007 (Small).jpg
Weiand Street Tunnel Ram 007 (Small).jpg (67.36 KiB) Viewed 1582 times
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Re: 1st Time Out

Postby gerbsinmd » Fri Aug 01, 2008 7:30 am

That looks really wicked!!!!
1999 Saturn SL2
2002 Olds Intrigue - second lowest mileage in my fleet :)
2008 Town & Country - Family transport
2002 Saturn SL2 Commuter car RIP - burned a valve @ 234k miles
2018 Cruze - 35mpg - avg, 49.7mpg - best so far.
2011 Impala - commuter

1977 Monza Mirage being Restified!!
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Re: 1st Time Out

Postby Hoonbash » Sun Aug 24, 2008 12:26 am

Update

The tunnel ram didn't work so great at W.O.T(needs cleaning),so I went back to the Air-Gap intake & 750 Holley,vaccum-secondaries.

Pulled the obscene weights out of the MSD dist & went with the medium weight springs and it gained serious bottom end,the ET street didn't stand a chance,laid some long SSSSS's

Took off the side-pipes and ran 11:90(2,500 elev.) dropped 1/2 second from previous nights ET,Pulled a 1.69 60' AND warped the shit out of the drivers side lower mount,rear-end was visibly out.

My last go around looked like Josh's when I screwed up the upper spherical mounts.now it's the lower(s).

These cars will NOT take any serious grunt with out the rear-end issues addressed ,SO DON'T KID YOUSELF LIKE I DID

Like the gents said"If your afraid of breakin' it ,you shouldn't be racin' it"





Later-Hoonbash
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1975 Chevrolet Vega GT

Re: 1st Time Out

Postby Hoonbash » Sat Aug 31, 2019 1:23 pm

Hi Guys Old thread resurrection

Had the Vega out for the first time this year and had a blast tearing around.

https://drive.google.com/file/d/1nXciEn ... sp=sharing
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Re: 1st Time Out

Postby n8thenetninja » Tue Sep 15, 2020 11:46 pm

What did you end up doing to fix the control arm mounts on the car?
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1975 Chevrolet Vega Hatchback

Re: 1st Time Out

Postby Hoonbash » Wed Sep 16, 2020 12:59 am

n8thenetninja wrote:What did you end up doing to fix the control arm mounts on the car?

Seen your post and thats shocking,both my uppers have threaded spherical rod ends and I dont really care for that set up but it seems to be OK.I raced it quite a bit after addressing the mount problems and think I had a best of 11.69@117. Havent been racing lately or even crawled under to look at things but am sure things are still solid.I better get my ass under there and do some observing after being reminded about this.

For the lower control arm mounting points I went this route viewtopic.php?f=20&t=20726&hilit=megavega#p81742
For the upper mounts I followed 70stylevega plan and fabbed up the H looking bracket that is drawn up near the bottom of page 2 viewtopic.php?f=19&t=18869
87 GTA
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1975 Chevrolet Vega GT

Re: 1st Time Out

Postby Hoonbash » Wed Sep 16, 2020 1:44 pm

Had a look at the car today and apparently i just welded the hell out of things and added to the uppers with some washers and a brace,could of swore i added steel to the outboard side of the bracket.Things still look OK.
Vega drivers upper control arm mount resized.jpg
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Vega upper control arm mount resized.jpg
Vega upper control arm mount resized.jpg (215.9 KiB) Viewed 47 times

Vega upper control arm drivers resized.jpg
Vega upper control arm drivers resized.jpg (230.78 KiB) Viewed 47 times
Last edited by Hoonbash on Wed Sep 16, 2020 2:09 pm, edited 1 time in total.
87 GTA
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75 Vega GT
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76 Sunbird
72 CoupDevile
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Hoonbash
 
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1975 Chevrolet Vega GT

Re: 1st Time Out

Postby Hoonbash » Wed Sep 16, 2020 1:53 pm

Lowers
Vega lower control arm resized.jpg
Vega lower control arm resized.jpg (254.47 KiB) Viewed 47 times

Vega lower mount resized.jpg
Vega lower mount resized.jpg (253.8 KiB) Viewed 47 times
87 GTA
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Hoonbash
 
Posts: 180
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1975 Chevrolet Vega GT

Re: 1st Time Out

Postby n8thenetninja » Mon Sep 21, 2020 6:06 pm

Thanks for the pictures! My car ran 10.90 (didn't expect that honestly :shock: ) in Topeka this weekend and nothing broke, but I want to try and beef up those upper mounts some more anyway. I suspect it's probably the weakest link right now. Most of the time the car is running at high altitude and running high 11's though, so this weekend was a rare exception.
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