Rotary Car Club - View Single Post - Defined 20b n/a semi p-port. 421rwhp

NoDOHC · 11-22-2010, 08:30 PM

This was per G-Tech and was not verifed on a track, I didn't set that much store by it (the number was used for comparison to the newer build).

I will say that it would get to 122 mph (top of 3rd) in 13.2 seconds (can look at the ECU Datalog to verify that) the g-tech may be over-estimating the speed due to suspension squat. I want to take it to a drag strip, but I will probably have to fix my oil leak on the rear differential before they will ever let me run it. I am doubtful that the 9.4:1 build will put down those numbers (See second number = 13.3 from Gtech for 9.4:1 build). The 9.4:1 build makes (gtech) 185WHp and 180Wlb-ft vs 235WHp and 165 WLb-ft from the 8.2:1 build.

I have a spec stage 3+ clutch in the car and it is absolutely amazing for drag racing. Pin the gas on the floor, wait for the tach to hit 5,000 rpm and let the clutch up slowly, results in a 0-30 mph time of about a second.

The 9.4:1 build runs out of steam about the time that the 8.2:1 build just started to pull hard (about 5,000 rpm). Since drag racing the car never really required the previous engine to drop below 5,000 rpm, it pulled very hard. It would get to the top of first gear (0-47) in 3.4 seconds, second gear (0-82) in 6.3 seconds, third gear (0-122) in 13.2 seconds, I never revved it all the way out in fourth (except on the dyno). I have the data log from several acceleration runs on my other computer. I can post it for verification.

Acceleration Numbers - peak, after launch:
1st gear - 0.77 gs
2nd gear - 0.42 gs
3rd gear - 0.29 gs

peak launch - 0.97gs

The car was WAY faster than my friend's stock Turbo II. (It still is, just not as dramatically so).

11-22-2010, 08:30 PM	#17
NoDOHC The quest for more torque Join Date: Sep 2008 Location: Sheboygan, Wisconsin Posts: 855 Rep Power: 17	This was per G-Tech and was not verifed on a track, I didn't set that much store by it (the number was used for comparison to the newer build). I will say that it would get to 122 mph (top of 3rd) in 13.2 seconds (can look at the ECU Datalog to verify that) the g-tech may be over-estimating the speed due to suspension squat. I want to take it to a drag strip, but I will probably have to fix my oil leak on the rear differential before they will ever let me run it. I am doubtful that the 9.4:1 build will put down those numbers (See second number = 13.3 from Gtech for 9.4:1 build). The 9.4:1 build makes (gtech) 185WHp and 180Wlb-ft vs 235WHp and 165 WLb-ft from the 8.2:1 build. I have a spec stage 3+ clutch in the car and it is absolutely amazing for drag racing. Pin the gas on the floor, wait for the tach to hit 5,000 rpm and let the clutch up slowly, results in a 0-30 mph time of about a second. The 9.4:1 build runs out of steam about the time that the 8.2:1 build just started to pull hard (about 5,000 rpm). Since drag racing the car never really required the previous engine to drop below 5,000 rpm, it pulled very hard. It would get to the top of first gear (0-47) in 3.4 seconds, second gear (0-82) in 6.3 seconds, third gear (0-122) in 13.2 seconds, I never revved it all the way out in fourth (except on the dyno). I have the data log from several acceleration runs on my other computer. I can post it for verification. Acceleration Numbers - peak, after launch: 1st gear - 0.77 gs 2nd gear - 0.42 gs 3rd gear - 0.29 gs peak launch - 0.97gs The car was WAY faster than my friend's stock Turbo II. (It still is, just not as dramatically so). __________________ 1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers) 1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic) Last edited by NoDOHC; 11-22-2010 at 08:35 PM.