ribs

Well...I finally got the chance to test my 0-60 times with a g-tech meter today, which, for the most part, are fairly accurate. 1/4 mile times are coming this weekend when I run my car up at the track (can't you tell I just saw the fast and the furious last night?). Here's what I got on a totally flat road in an industrial park with a 180 lb driver, 170 lb passenger, full tank of gas (140 pounds or so), 60 pounds or so of stereo equipment and other junk, heavy *** 17" replica wheels and not abusing my clutch (i.e. you can't smell it...well, I could after my slowest run) with the slightest hint of wheel spin:
5.48 sec
5.15 sec
5.14 sec
5.18 sec
5.15 sec


Not bad for a 17 year old car with a 4 cylinder, huh?

All I have done to it is autothority stage II chips, lindsey boost enhancer and Turbo Tim's 3" cat back exhaust, running on 255/40 17 sumitumo HTRZ-II street tires in the rear.

I think I could break into the high 4's if I didn't have a passenger and less gas in the car.

I don't trust the HP readings, but the g-tech told me on 3 runs that I did that I had 245 RWHP, 237 RWHP, and 248 RWHP, putting in 3400 pounds for the car and its cargo (2850 for the car, 350 in passengers, 140 in gas, 60 in other junk). Seems a little high, doesn't it?

Does anybody else have acceleration times, 1/4 mile times, or dyno slips they would care to share?

Thaddeus

Thanks for the info. It means my rough estimate can't be far off, since my car is almost identically equipped. Except the driver is heavier. Very cool.

Thanks

Thaddeus

sorteddub

I had my '87 951 at the local drag strip the other week. I took it very easy on the launch reflected in my 2.2 60ft. time, but was still able to run 12.6 @116. This was with a Huntley stage 2 turbo, and the normal bolt on's. Not too bad for a stock motor 4 cylinder.

daly944

anybody know how fast a 944na with a manual tranny and race headers/cone filter conversion/chip/test pipe would run? Any estimates? I was guessing about 7 but I don't really know.

Brent 89 - GT

I just got my gtech pro the other night. My mods are listed below, it was just myself and some gas in the car. I recently had it corner balanced so with a 1/4 tank of gas and my big butt it is 3150 lbs. Acceleration times???? I had a best of 5.14 and another 5.48. It was about 90 dgrees and humid so I expect better with cooler weather. I have enough open space for the 1/4 mile runs, I had a 13.8@112 and a 13.6@114. The trap speeds tell me I have lots of power and a questionable launch technique. Pretty cool little gadget. My hp numbers were even worse at about 225. I will try again, maybe tomorrow, it is supposed to be about 70 degrees.

ribs

Brent, thats kind of crazy that our best and worst times were identical for 0-60. I would have to say with the mods you have listed you should have a good 20 or 30 HP on me, not to mention you would kill me on the track (stock original suspension here). Maybe the error lies in the technique. It took me a month of driving my car every day and always ******* it out right after I got it to learn the best launch technique (I dogged the clutch out bad, but I knew I needed a new one very soon anyways, so....). Anyways, it was 80+ degrees when I did the testing, and its always humid in maryland. Next time I try getting numbers I am going to run the tank down close to empty, kick my passenger out, and take out my sub, amp, and all the other junk that I haul around with me. I should go up to the drag strip on friday (capital...come on people in maryland, somebody come up there and try to school me), so I will get the most accurate 1/4 mi. times possible, and I will post them here. I should get 3 or 4 runs, so maybe I will be able to get a good start on one of them. Anybody remember eddie bellow, the guy who drag raced a 9 second 993 twin turbo in NIRA and got caught for being part of a stolen car ring?

ribs

Hmmm...daly, I don't know on that one. I would guess in the low 7's or high 6's barring that those mods give an additional 30 HP and a boost to the entire power curve, not just high end HP. A car with comperable HP, weight, and gearing would be an 87-88 RX-7 turbo II (my last car ) if you had 180 flywheel HP after those mods. I don't know the power band of the 944 n/a, but the RX-7 was about as sluggish as my 951 until the turbo hit, which was at about 2700 RPM's. The RX-7 could theoretically do 0-60 in 6.7 seconds, but mine had a compression leak in the rear rotor housing and was probably making 90-95% power. The best time I ever got with a g-tech for 0-60 was 7.5 seconds for that car.

sorteddub, thats pretty damn quick. I think a dodge viper gts does a 1/4 in 12.3 @ 119, so you are definitely encroaching on viper terrirory. Oooohh...the new motor trend came in. Let me quote off some performance numbers from some modern supercars from the back of it:

car name/0-60/1320 ft/HP

NSX Zandari / 4.7 / 13.1@109.1 / 290
M Roadster / 5.3 / 13.7@131.0 / 240
M5 / 4.8 / 13.1@107.2 / 394
Z8 / 4.6 / 12.8@109.8 / 394
Corvette Cpe / 4.8 / 13.1@109.1 / 350
Corvette Z06 / 4.4 / 12.6@114.0 / 385
Viper ACR / 4.1 / 12.2@119.2 / 460
360 Modena / 3.9 / 12.2@113.5 / 395
F355 / 4.6 / 13.0@109.7 / 375
SVT Cobra R / 4.8 / 13.0@108.5 / 385
Venom 800 TT / 2.4 / 10.0@139.0 / 833
Diablo VT 6.0 / 3.4 / 11.8@120.9 / 550
McLaren F1 LM / 3.9 / na / 680
911 GT3R / 3.2 / 11.2@126.1 / 410
996T / 3.9 / 11.9@116.0 / 415
996 GT2 / 3.9 / 11.7@120.0 / 462


There are more but I am sick of typing. Glad you enjoyed thaddeus...look for 1/4 mile times this weekend.

Dave

Daly944, I have seen a best 0-60 time of 6.50 and can stay in the mid to high 6 sec range if I don't mind launching at 3000 rpm, (I try not to make a habit of it). A more conservative launch results in 6.9 to 7.4 depending on fuel level, weather etc. My 86 n/a has only a chip and a K&N (flat) filter. The PO told me when he had the head rebuilt, it was shaved to increase compression, and based on these numbers I'm wondering if anything else was done when he was in there. HP shows a consistant 143-147 with weight set at 3250.

Francesco944

do you mind dishing out some specifics on your 17yr old?? 944?? what engine?? what performance mods??? thanks

Tabor

If you want good 0-60 in a 944 NA, the best thing you can do is chip it. Why? Because it raises the redline just enough so you can hit 60 in 2nd gear and you don't have to shift into 3rd.

ninefiveone

One thing to keep in mind with gtech 1/4 mile numbers is that the gtech reports your trap speed as the instantaneous speed at the end of the run. At an actual drag strip, your trap speed is the average over the last 100 ft or so. So the 1/4 times are pretty accurate with the gtech but take the trap speeds with a grain of salt.

Brent 89 - GT

Take my trap speeds with a huge grain of salt. I was recalling them from memory, it had been a few days. If you take 10 mph out I think that is what I meant. I ran a couple runs on my way home from work last night. After a perfect launch I hit 60 in 4.97 and tripped the quarter at 13.59 and 104.8. The second run on a less than perfect launch was 5.56 and 14.12@103.4. It was about 80 degrees again. I plugged in my 3200lbs and it recorded 213 hp. While the acceleration numbers are awesome I did expect a bit more. Something does seem a bit off, I should have 20-30 hp more. Maybe this winter will require a rebuild.

aka 951

For what its worth I took the 951 out and really beat on it to get some G-tech HP numbers...

All tests done up to 7000 rpm in second (about the time a flame shoots out the back when I hit the rev-limiter). Car weight was inputed at 3110 lbs (lightweight seats).

15 psi - 316 rear wheels

18 psi - 348 rear wheels

I made one run at each boost level as I'm not sure how many times the car can take this kind of a beating (And I'm not really that comfortable beating it that hard). Although I did run the car once previously at 15 psi - but let off at about 5000 rpm and got 286 hp. Who knows how accurate the numbers really are...they sure feel good though.

BTW - I may try a full scale 20 psi run in the near future as that is where this turbo is supposed to be optimized.

Erick

aka 951

Brent - sounds like your wastegate is toast.

Erick

ribs

"All I have done to it is autothority stage II chips, lindsey boost enhancer and Turbo Tim's 3" cat back exhaust, running on 255/40 17 sumitumo HTRZ-II street tires in the rear."

If your message was directed to me.