What exactly is a 964RS 3.8L?
 

What exactly is this car? It is now legal in PCA C class, and I wonder what it would take to convert my RSA over to one? The lighter weight and 3.8 motor sound appealing. :)

I just wanted to know now. I can't wait to get home to check it out in Adrian's book. :jumper:

Another Euro only.... but someone must have imported one and asked PCA for it to be classed.

Its the "street" version of the 3.8 964 Carrera RSR. Has the turbo wide body. Would be a major effort to update/backdate to meet PCA rules.

A 964 3.8RS is an 964 RS chassis with a matter cage (RSCS option) and seamwelding but with a turbo body. It has the M64/04 RSR 11.6:1 compression engine with MAF rather than TPS for an "advertised" 300hp. Aluminum doors, hood, new 3.8RS wing, thin side window, free flowing exhaust. 5spd with RS gearing and 40/40% locking diff. Wheels are 9x18 and 11x18 with 3.6 turbo brakes. It weighes 2668lbs. Somewhere between 20 and 100 units were made.

It is basically a street version of my car.

PCA does it again! Another one-off, expensive non-US class leading car. :banghead:

I believe the owner of Northstar Motorsports has and races one along with a 996 Cup. I posted a pic of it a while back but cannot find it.

They are easily over $100k if you can even find one. And whoever buys one will likely suck as a driver. If a good driver actually gets one, you are screwed.

Hey, but now that you've bumped Breakey out of C class for Larry, there is an extra spot on the podium.

A UK Porsche 911 magazine story on the 3.8RS a few years ago made a big deal about the hood being made from Kevlar, was it a one-off?

Everything I have read about the car has said it was aluminum and judging by the cars built around that time, that would make sense. I don't think carbon/kevlar was used until the late 993s and 996s.

The 964 Turbo S Leichtbau has a carbon Kevlar front lid, from the factory. The 3.8 RS could as well have had it.

The 1992 euro turbo S had carbon/Kevlar hood and doors. I believe the tail and doors along with the hood were carbon/Kevlar on the RS and RSR. I recall seeing an RSR at a concours back in the mid 90's here in Jersey. Black on Black not that it had an interior and I recall the finish on the hood and doors were rough. The owner told me it was becasue the Carbon/Kevlar was hard to paint. The yellow RS that Perelli used on their tire ads back then was at Kelly Moss racing when I was out there in 95. They were customizing several race cars with Kevlar roofs and parts. They said that the hood on the RS was used as a templet.

I had the factory RS aluminum fenders, hood and doors on my 74 RS clone. Although they were lighter than the steel parts they were heavy gage like the fenders on a 928 and I doubt would drop the weight to 2668.

The two magazine articles I have on the 3.8RS state aluminum hood and doors.

The 964 Carrera RS 3.8 parts catalogue also agrees with you.
Kevlar parts were certainly fitted to race cars by various teams if the specific racing regulations permitted such parts (Konrad and Larbre certainly did this), but the homologation models and the factory delivered racing standard was for aluminium hood and doors.
Ciao,
Adrian.

I thought it also had the Turbo body.

Harry

Nope it has a Turbo-look body based on the 964 Carrera RS body. This is also explained in the Porsche Motorsports 3.8 RS parts catalogue.
It was quite easy to flare the original raw stamped rear panels before they are welded. The same process was used for the 964 Turbo, but the RS 3.8s were assembled at Weissach not on the factory production line with the Turbos.
Ciao,
Adrian.