What would a 1984 911 GT3 have looked like?

[Elombard]

I have been thinking about this lately. If Porsche had built a GT3 in 84,85,86 based on a Carrera what would the specs have looked like?

I figure somewhere between a 73 RS and a 2004 GT3.

So what was Porsche racing back then? looks like mostly turbo stuff? was there any Normally aspirated race cars?

I guess the 87 and 88 CS are close? maybe the RSA is a bench mark?

Both seem tame compared to the RS and the GT3?

Maybe something like this (in Europe)?

Interior:
Light weight minimal, racy bucket seats, rear roll bar, no sun roof.
maybe some thinner glass just to make it a little special?
extra gauges? maybe CHT gauges?

Exterior:
narrow body
FG bumpers? would this have been legal in Europe?
Light weight rear deck? what style do you think? Carrera? Bigger?
factory rolled fenders?
Less sound deadening?
No rocker covers?
What else?

Engine:
Tough one, maybe a twin plug with an extra 1/2 pt compression and wilder cams?
lighter twin out more open exhaust?
Maybe 3.4 litres?
I am thinking they would target ~20% more horse power than the 231 that came on the regular 911 of the time.
Would they use motronic? seems like cost would of gone too high going to something more.
Lighter weight clutch and flywheel assembly?

Suspension.
This is very interesting?
What were the race cars running back then?
Maybe just the turbo set up tuned for the lighter car.
Low, very low, maybe raised spindles etc. to maintain geometry.

Wheels:
16x8 frt special offset and 16x9 turbo fuchs on the rear

The more I think about it the more i wonder if they would even build it. It may have beat the turbo ;-)

What do you guys think?

I am figuring a price delta (%) about the same as the current gap between a 997 and a GT3 (I think its about 25%) so it cant be NASA stuff.

There is a number of cars on the board that have the look for sure.

[Flieger]

Sc/rs...

[Elombard]

Oh geez forgot about that one.

They were pretty pricey werent they? maybe the economy and emissions would not let the SC/RS be successful to the level that the GT3 is.

[Elombard]

I dont know, after reviewing the specs it seems a little too much a race car and its wide body. Plus its based on the 3.0 instead of the 3.2. Still the interior and bumpers are right. i am thinking if they did the GT3 Cup back then what would the road version of that car looked like. Seems like the SCRS would have been a little too exotic maybe?

[AlfonsoR]

I too have wondered about this, and I'm sure many others have too. That's part of the craze behind the Singer cars too, in my opinion.

[rattlsnak]

I think it would look like that Green 84 cruising around near Conyers that Ive heard about.

[Shaun @ Tru6]

Excellent thread, but I think it would just be a milder version of the 934. Look at a 1976 934 and a 1995 GT2 RSR.

An 84 GT3 would be somewhere in between.

[Jagshund]

I'm having a hard time imagining what it would look like. Why don't you build one real quick and show me?

[Elombard]

Whats up mark!

The 934 and GT2 were Turbos though.

The SCRS would fit the bill there. I guess a narrow body SCRS with heat would be pretty close. A narrow Body 934 NA would be magic!

[patina]

maybe something like this... more aggressive front bumper, mirrors, ducktail

[clutch-monkey]

Originally Posted by 1968Cayman

I'm having a hard time imagining what it would look like. Why don't you build one real quick and show me?

i can't be too far off? except 16"s instead of 17"s


wider wheels front and back, but no guard work
fibreglass bumpers and lip
fixed back seats, interior still carpeted but no rear seats or padding
half cage
uprated brakes
exhaust, tune

that sort of feels 'GT3' to me - a street car with some tweaking rather than out and out race car

[Elombard]

Yah I think you are close clutch monkey but I think they would have gone a bit more with the motor? not sure how.

I dont think they would have done a duck, I think they were done with the duck by then and had moved on to the 'T tray' type tails. I do love the duck and that car !

[clutch-monkey]

Originally Posted by Elombard

Yah I think you are close clutch monkey but I think they would have gone a bit more with the motor? not sure how.

well true, maybe enlarged it a bit, mine's a 3.6 but i don't suppose that was an option then haha

[Elombard]

Almost forgot brakes, I can imagine they would go with the Turbo brakes (ala M491). So what about the Turbo look option, has the suspension and brakes but pretty luxo and of course wide body. i just dont think they would have raced the wide body in a one make series then?

[jackb911]

I agree with Flieger: SC/RS, wide body...but with a 3.8

[Shaun @ Tru6]

the 959 was created for 1984's Group B, but did Porsche ever field a car in Group A?

[Bill Verburg]

Originally Posted by Elombard

I dont know, after reviewing the specs it seems a little too much a race car and its wide body. Plus its based on the 3.0 instead of the 3.2. Still the interior and bumpers are right. i am thinking if they did the GT3 Cup back then what would the road version of that car looked like. Seems like the SCRS would have been a little too exotic maybe?

SC/RS is narrower than a GT3
SC/RS track mm, f/r, 1432/1531
2010 GT3 track mm f/r, 1497/1557
even a 997 is wider than an SC/RS
2005 997 1486/1534

the Cups
2009 GT3Cup 1516/1561

[Elombard]

Ok after many nights of pondering this question I think I know what Porsche might have done.

Chassis = M491 (Turbo brakes and suspension) and yes wide body perhaps a wing special to the GT3 - something between Turbo and a Carrera - early Turbo style? or maybe the wide T tray IROC just not quite as wide. Oh and plastic bumpers ala SCRS

Engine = 3.2 with extra 1/2 pt compression and twin plug, perhaps some changes to allow an extra 500 rpm rev limit? freer louder exhaust ~265 hp, between a euro carrera and a Turbo

Trans = 915 with LSD (standard M491 i believe)

Stripper interior, maybe 73 RS evolved door panels, light wt carpet, rear seat delete. Fixed back seats (similar to race cars of the day) and a rear roll bar (remember this is a euro spec car.)

Turbo Wheels

So - pretty similar to what many have built, sort of an updated IROC car. The IROC was kind of the GT3 Cup racing of its day.

What do you guys think? should I not give up my narrow body dream :-)

Now I am depressed and I want to go buy an M491 and build this car....alas too rare and special to mess with.

[Elombard]

Hmm the IROC RSRs were in 1974, they would have done something different by 84 - back to the drawing board.

[giovanni86]