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rotary powered monza

PostPosted: Tue Mar 01, 2011 3:33 am
by monzaaddict
If the 75 monza had been produced with the rotary engine as originally planned this would have been what the emblems would have looked like.
$(KGrHqYOKpsE0VI84yu4BNZ!7Sehf!~~_12.jpg
$(KGrHqYOKpsE0VI84yu4BNZ!7Sehf!~~_12.jpg (56.44 KiB) Viewed 2490 times

Re: rotory powered monza

PostPosted: Tue Mar 01, 2011 8:16 am
by marco_1978_spyder
Eww.. where did you find this pic? How do ya know?

Thanks for sharing

Re: rotory powered monza

PostPosted: Tue Mar 01, 2011 10:15 am
by hammerdown7
I would say Monzaaddict is pretty clever and made that himself. Great job!

Dick

Re: rotory powered monza

PostPosted: Tue Mar 01, 2011 11:05 am
by monzaaddict
hammerdown7 wrote:I would say Monzaaddict is pretty clever and made that himself. Great job!

Dick

Nope, bought it off ebay from a guy selling a bunch of nos emblems- it's the real deal!

There was another about 10 years ago on ebay - might be same one.

Re: rotory powered monza

PostPosted: Tue Mar 01, 2011 12:14 pm
by gerbsinmd
that is sooooo cool!!!!!! :th: :th: :th: :th:

Re: rotory powered monza

PostPosted: Tue Mar 01, 2011 9:39 pm
by fyrftr50
Did this guy have any documentation whatsoever to verify his claim? There a part number with it? The GM press photos when the Monza was stil possibly going to be called the Chaparelle use the Chevrolet emblem we all are familiar with. I would think the rotary engine was dropped long before any emblems for the car would have been made, let alone designed. I could very well be wrong, of course.

It is definitely the same casing but hard to beleive there would be no chevrolet emblem in this front facia and rear facia emblem.

Re: rotory powered monza

PostPosted: Tue Mar 01, 2011 11:51 pm
by meangreen73vega
Has anyone done a rotory engine h-body?

Re: rotory powered monza

PostPosted: Wed Mar 02, 2011 1:40 am
by monzaaddict
fyrftr50 wrote:Did this guy have any documentation whatsoever to verify his claim? There a part number with it? The GM press photos when the Monza was stil possibly going to be called the Chaparelle use the Chevrolet emblem we all are familiar with. I would think the rotary engine was dropped long before any emblems for the car would have been made, let alone designed. I could very well be wrong, of course.

It is definitely the same casing but hard to beleive there would be no chevrolet emblem in this front facia and rear facia emblem.

Hate to use your own site to dispute your argument but under "concepts" http://monza.homestead.com/concept.html the 6th photo down shows the rear view of a monza clay model and the text reads as follows:
To the left is a view of the clay model that has been finished with a plastic film to simulate paint (c. 1972). note the rear rotary emblem on the rear fascia. The front and rear bumpers also seem to be seperate from the main body, similar to the initial design proposals and the first running prototype at Pininfarina. This model is remarkably similar to the final production version.

Re: rotory powered monza

PostPosted: Wed Mar 02, 2011 2:35 am
by res0o7eb
That is cool! I want one.
Image
meangreen73vega wrote:Has anyone done a rotory engine h-body?
I don't think anyone has done a rotary swap. I think there is a short thread here on H-body.org discussing such.
Would be an interesting swap.
Image

Re: rotory powered monza

PostPosted: Wed Mar 02, 2011 12:13 pm
by fyrftr50
monzaaddict wrote: Hate to use your own site to dispute your argument but under "concepts" http://monza.homestead.com/concept.html the 6th photo down shows the rear view of a monza clay model and the text reads as follows:
To the left is a view of the clay model that has been finished with a plastic film to simulate paint (c. 1972). note the rear rotary emblem on the rear fascia. The front and rear bumpers also seem to be seperate from the main body, similar to the initial design proposals and the first running prototype at Pininfarina. This model is remarkably similar to the final production version.


I was looking at those pics when I wrote the post but the emblem is impossible to make out and it looks to be very flat, compared to what was put on the Monza or what you posted. Unfortunately those are not my words. They were copied word-for-word from what was printed in an old H-Special Registry mailing so I honestly cannot confirm nor deny most of what is there. I'm just assuming what was printed was correct.

The other issue I have is that all the emblems of that style used on the H-Bodies are all made the same. All 3 Skyhawk and both Chevrolet emblems were made the same, with the same convexed shape to them, with the emblem actually under the convex plastic. This one doesn't appear to be convexed like the rest of them and no bubble on top of the actual logo. of course if this was a preprioduction emblem, it could have still been in the works. Just hard to take some guys word for it because he listed it in an auction. But if it is, then you have a mint piece of Monza history there.

Re: rotary powered monza

PostPosted: Wed Mar 02, 2011 7:35 pm
by bill1978v8

Re: rotory powered monza

PostPosted: Wed Mar 02, 2011 9:47 pm
by Kenova
meangreen73vega wrote:Has anyone done a rotory engine h-body?

With so many RX7s getting their engines yanked out and replaced with LS engines it shouldn't be hard to find an unwanted rotary. They're not the greatest sounding engines though. I've heard better sounding snowmobiles.

Ken

Re: rotary powered monza

PostPosted: Thu Mar 03, 2011 1:36 am
by res0o7eb
Ha. Snowmobile. heh-heh. I think you may be correct.
I've always heard that the rotary engine has a good power for such a small engine.
Well, I was doing a little research and it seems that they don't calculate displacement correctly.
As you can see in the animation, there are 3 faces to the rotor and 3 ignition sequences, therefore this is like a 3 cylinder engine.
But the Japanese only count one side of the rotor for displacement purposes.
But, another calculation uses two faces, doubling the displacement.
This is because a piston engine turns 720 degrees for the full four stoke of the Otto cycle.
A rotary engine turns 1080 degrees for all three rotary faces to complete the Otto Cycle - that's only 360 degrees.
So, for equalization with piston engines, the comparison between is with two revolutions of the output shaft and two faces.



Anyone know if there are any GM Wankel rotary engines still in existence?

Re: rotary powered monza

PostPosted: Thu Mar 03, 2011 7:07 am
by autohistoryman
The GM Heritage Vehicle fleet contains no rotary powered vehicles. Heresay is the Powertrain History engine collection contains a two rotor engine, although it is not part of the show engine collection. :( :( Paul

Re: rotary powered monza

PostPosted: Mon Mar 07, 2011 11:34 pm
by monzaaddict
more pics