I stopped by the dyno shop this afternoon to see when they could get me in. The owner said I could run right then. I decided what the hell. My engine was hot from 1 1/2 hours driving to the airport and back. The intake was cool, but the intake manifold was hot to the touch. Both runs were done in 4th gear starting at 2500 rpms.

Results:

Run 1:
176 fwhp at 5200 rpms
193 ft/lbs of torque at 4500 rpms

Run 2:
174 fwhp
192 ft/lbs

My powerband is awesome. My car is making 165 fwhp+ from 4500-5900 rpms and making 180 ft/lbs from 3100 to 5000 rpms. One thing that is odd is that I've got a bit of a "hiccup" in torque from 3500-4200 rpms. It drops from 190 ft/lbs at 3500 to 180 ft/lbs at 3800 then back to 190 ft/lbs at 4200rpms. I've seen a few Maxima's do this before. I adjusted my shiftlight to come on at 5800 rpms and by the time I shift I will be around 6000-6100rpms.

My mods are:
Stillen Y-pipe
Courtesy B-pipe
HKS intake
RT cat

Next time I dyno I'll have my Field's AFC. I'm gonna do a test and tune for 1/2 hour and get it setup right. I also plan on running with a much cooler motor. I figure there is probably another 3-5hp and torque with running a cool motor.

Dave

 

Hmm... sounds pretty good! (no pic so can't really comment otherwise) Are these corrected or uncorrected #'s?

Your #s for your mods look to be consistent with other dyno's I've seen for similar setups. Very nice!

 

good numbers dave!
sounds just about the same as other maxima's with the same mods.

 

The numbers are corrected to the typical 29.24" Hg, 0.11 vapor pressure, air temp 64.5 F. Correction facter was 0.99 SAE. I asked what the numbers would have been running in 3rd gear and they said running in 3rd adds about 5-6% gain in hp and torque.

Dave