johntorg

The first input I would like is which car to build. There seem to be 4 choices:

1. 951 Stock E 3000 LBS

2. 951 Prepared F 3100 LBS (I would add a chip & Big Reds or turbo S brakes)

3. 951S Stock F 3250 LBS

4. 951S Prepared G 3350 LBS (Chipped Other Mods?)

The biggest limitation seems to be the requirement for stock boost. Can anyone tell me what PCA means by this? (There is a requirement for a stock KLR.)

DanR

prepared G is 3149 for PCA, If you want to run NASA supercup the weights are different to equalise the field. If that is the case I would run E. All the cars in NASA have the same power to weight but the E car is better in the corners and under braking for having less weight vs a 951S at 3250 which is a bit of a PIG. Best thing to do is check the local race groups to see how many entries in each class

As for stock boost, in stock classes you have to run factory KLR (controls boost) and DME, in Prepared classes you can run after market DME

Astroman

Why are you adding 100 lbs to the prepared version of each car??

johntorg

The weights I'm using are from the SP3 table, which both PCA and NASA use. I guess if I decided to run in the PCA stock or prepared I could lower the weight but would have to ballast up for NASA or 944 SuperCup running at PCA events.

This is something new. 944Cup was a NASA only class until last year. Now 944Cup runs in SCCA and PCA as well as NASA. When we run in these sanctioning bodies, the heavier SP3 weights apply.

Astroman

Oh, I see. I was just thinking PCA stock/prepared.

93 FireHawk 968

If you don't already have a car, I wouldn't build, I'd buy a car already set up. It's far less expensive.

johntorg

I agree and I did buy my two (the first was crashed at RA) 944Cup NAs already built. I have several options I have a stock 80K mile turbo engine and an 88 turbo S with a 3.0 Liter engine. if I swap the engine and update the cage (side impact bars), I'll can have prepared F car, if I downgrade the brakes to Turbo brakes, I can have a Stock E car. If I upgrade the Turbo and DME, It can be a stock F, and if I install an aftermarket chip, it can be a prepared F car.

Since I do all the work myself, and have pretty much everything in hand, the cost will be less than buying an already built car.

This is the car I was thinking about starting with. With a 3 liter it would have to run GT3 or GT2, where it wouldn't be competitive downgraded to a 2.5 it could be competitive in stock/prepared with some suspension mods.

1988 Porsche 944 Turbo S

Work was done by Autometrics Motorsports in Charleston, SC
Original mileage 120,000. Less than 1000 miles on rebuilt engine

Full Roll Cage
Corbeau Racing Seats
Simpson 5 point Harnesses
Fiberglass Rear Bumper
Charley Arms
Turbo Cup Coil-Overs
Camber Plates
Strut Brace
Front Brake Ducts
9” Wheels Front & Rear
Limited Slip Differential
Sachs Sport Clutch
Light Weight Flywheel
Short Shifter
3” Exhaust
Engine Modifications
3.0 Liter
JE Pistons
Pauter Rods
Extrude Honed Intake & Head
O-Ringed Head and Block·
Raceware Studs
Millege Hybrid Turbo
Hi Performance Cam
Lindsey Intercooler
Dual Port Wastegate
Manual Boost Control
Lindsey Mass Air Flow Sensor and Chip
Dyno Results:363 WHP and 395 ft-lbs @ 15psi

hp18racer

If you go with your choice '1', lots of the parts are cheaper. At least in the midwest, 'E' is a big class, 'F' is usually less than 3 cars.

A friend of mine had his car tested by PCA, they put a temporary aftermarket boost gage in and had him take them for a ride. They were looking for of 11psi or less.

johntorg

I have a friend who bought a PCA prepared Turbo S that ran at 3100 lbs according to the log book. This was in 2007 and 2008. I can't find that weight listed anywhere. As far as I can see the weight for E is 3049 and for F its 3148. Did PCA change the weights?

In my case if I build a class E car I can weigh 3049 for PCA and 3000 for NASA

johntorg

In addition according to the NASA rules I can use a chipped DME wiithout a weight penalty

http://www.44cup.com/florida/supercup.shtml

Mike Buck

Weights have changed for 2010. Basically all down 100lbs.

I would go option 2, building a SP3 car. Only problem will be keeping hp low enough.

BTW . . . It is not NASA 944Cup or NASA 944 SuperCup. NASA has nothing to do with the series. That is just where DD happens to run some of the races with at times.

Lemming

John, build a GTS3 car and come play with us. You know you want to

roberga

buy an already prepped car. Greg Fordahl here in Seattle builds great cars and I would bet there are a couple customer cars for sale.

Tim Pruitt

John,

The most important detail is a very, very secure and operational quick release for your steering wheel

TP

DanR

ouch