Z3POWER's Website

Cars that conducted dyno tests:

The equipment that was used was a DYNOJET. Temperature was in the around 80F, by the time I did my pulls. I incorrectly thought that my car's gear 1 to 1 ratio was in 4th. Stupid me, I did not look it up to make sure.

So when I did my pulls, these are the variations & the results in 4th gear. Calculating with an 18% crank to wheel difference, you will need to multiply by (1/0.82). Check out the following link for a more detailed explanation by Pat & the Work done by Karl Asseily on his Z3 Coupe:

Recently I talked with my friend who has experience in testing cars on dynos and he said that I do not need to retest my car. Because, the dyno operator can fine tune the equipment to compensate for wheel slippage. So my numbers I ran are still OK, but I still plan to rerun with a new airfilter and plugs. I will keep everyone posted.

1 - no spacers on my SuperTrapps.
193.1 ft# @ 182.5 Hp at the wheels
235.5 ft# @ 222.6 Hp at the flywheel

2 - no spacers and no air filter.
195.3 ft# @ 182.7 Hp at the wheels
238.2 ft# @ 222.8 Hp at the flywheel

3 - 24 spacers and air filter in place.
191.1 ft# @ 172.3 Hp at the wheels
233.0 ft# @ 210.1 Hp at the flywheel

The stock numbers for my 2000 Z3 was 206 ft# @ 193 Hp.
New numbers with mods(no disks & filter) 238 ft# @ 222.8 Hp.
The stock numbers for a 2000 MZ3 are 236 ft# @ 240 Hp.

Improvement over stock:
Horsepower:   29.8 Hp
Torque:            32.0 ft#

I also did a 1/4 mile and 0-60 trials with my G-Tech Pro monitor. I did a total of 12 runs between 2-days. The temperature was about 55F. Here are the results of my runs:
0-60 mph: 5.27 sec.
1/4 mile:    13.90 sec @ 104 mph

My old stock times are as follows:
0-60 mph: 6.40 sec
1/4 mile:    14.48 sec @ 95mph

Below is the scanned copy of my graph.