WolfeMacleod

PCA had a Tech Ed session today at MaxRPM not too far from here. They offered reduced priced dyno runs, so I bit since I haven't done this car.

Wondering what others are getting from similar cars. '85 Carrera, stock engine.
I'm told these numbers are pretty good, although I'm running a tad bit lean they said. 202hp at the wheels. on it's third run.
One other person there had an '86 and pulled about 197-198hp.
There was a newer Twin Turbo that apparently pulled about 700hp...

Here's the scan from my car.

bjzorn

Not bad Wolfe which car are you driving more? the 924s or the taildragger?

My S2 puts out as much torque as your car to the wheels!

Brandon J

WolfeMacleod

Mostly driving the 924S, since I don't like having to play car-hockey to get the 911 out of the garage. It's a real pain in the ***.
Besides..I just broke 120,000 miles in the 924S. The 911 still hasn't cracked 40,000.

Marc Shaw

Cool - looks good. What's a stock '85 put out acc. to Porsche?

Marc

pu911rsr

Stock 3.2 should be 200 at flywheel, would expect 170 at rear wheels.
Phil

WolfeMacleod

Afte spending half the day looking for my 911 Buyer's Guide Book, I found it...

Here's what it says about the '85 MY.

207DIN @5900rmp
202SAE @ 5900rpm

192 ft-lb DIN
185 ft-lb SAE

Now...On Porsche's Website, it states that it should be 231. If we assume thy measure at the flywheel, which I have been told, @15% transmission loss, those numbers would be almost right on par.

Daniel Dudley

Nice to know . Lots of people scoff at paying for a dyno run, but it is good to know if you are in the ballpark. No missing ponies to round up.

WolfeMacleod

I don't see why they scoff at it, being that most of "us" are performance-minded people, right? I mean hell..we driveperformance cars...woulnd't we WANT to know?

fixnprsh

Personaly I like to see RPM on dyno sheets, but that is a damn nice set of lines, you can tell bad tuning when they are all jittery. Porsches HP claims have always been, MINIMUM. So when it says 202HP, it means thats the minimum it will put out, they are usually always higher by 10% give or take.

Now you have a baseline, its time to add a chip and bypass and head back!

I'm off to the Dyno with my 2006 GLI as soon as the turbo back and intake are on, that and the software should put down around 260HP and 290TQ at the front wheels! not bad for a 2.0 4cyl with software and 2 bolt ons!

WolfeMacleod

One of my previous owners replaced the Autothority Chip when he replaced the DME and went back to the stock setup. I could buy the whole thing from him, but I'm not really interested in chipping the car at this time. I'm sure there are other things I can do to eek out a few more HP, right?

fixnprsh

A chip has good gains for little money, its hard to beat, I would put it in if it were my car

Chris M.

231 is for a Euro model.

bjzorn

If I remeber right didnn't you buy the 924s with 105K on the clock? How many Cars are at your house now? 3 right? I hope your neighbor moved that van out of the way because if I remeber correctly there wasn't much room in your driveway

brandon J

WolfeMacleod

Yes, the 924S had 105k. Just broke 120k within two miles of clutch failure. Gerber did the clutch about two weeks ago.
Got three cars here now. White van is still here, rotting away. He's got two cars that never move.