Took the NSX to the dyno! (Video!)

[enigma]

Went and got the car dyno'ed. It's been my first dyno since I installed the AP-X Exhaust.

My last dyno with Cantrell AIS + Unifilter, Comptech Headers, and HKS Exhaust yielded 263 rwhp, 210 rwtq. It was about 20 degrees colder and there was about 10% less humidity, which as many know makes a large difference.

With the AP-X Exhaust being the only difference, I made 261 rwhp and 200 rwtq. Despite being 100 degrees and 38% humidity (versus 80 degrees and 26% humidity last time), I only lost 2 rwhp over my previous dyno, which leads me to believe that the AP-X exhaust at least makes as much power as my old HKS exhaust or possibly even a hair more. This is great news, seeing as you get a similar pitch minus the rasp of a GT One, but don't lost any of the power that is lost with the crazy GT One spaghetti design.

I only managed to film my last two runs, but I yielded 259 rwhp, 261 rwhp, and 259 rwhp on my three passes. I'm getting a Prospeed ECU next week, so it will be interesting to see if I can break the 270 rwhp barrier with a lowly C30!

Run 2:
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Run 3:
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For comparison, here is an old dyno at the same place and at the same angle as Run #2. This was with my old HKS Exhaust and before the Cantrell AIS.

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[NSX 2]

based on 19% drivetrain loss thats about 310 Hp

The car sounds really great, and the RPMs just kept going and going. Very cool, i assume you have a few mods?

 

[enigma]

based on 19% drivetrain loss thats about 310 Hp

The car sounds really great, and the RPMs just kept going and going. Very cool, i assume you have a few mods?

Thanks!

Yeah, the car has a couple of bolt ons.

Cantrell AIS + Unifilter
Comptech Headers
AP-X Exhaust

She's essentially two modifications short of what will probably conclude all the power mods I'm doing. I just ordered a Prospeed Stage 3 ECU and will be pulling my ECU out and sending it to Brian tomorrow to be reflashed, and I eventually plan on picking up Prospeed High Flow Cats to complete the power stuff. I'm hoping I can finish up making around 270-275 rwhp. Will eventually do a lightweight flywheel as well when the clutch starts to go, but I don't anticipate that being anytime soon.

I plan on heading back to the dyno probably in late August, early September after I install the Prospeed ECU though to see what differences that made for my car.

 

[s14_tat]

Great numbers, can't wait to see some real world results with the Prospeed chip once its installed. Where these pulls done in 4th? That pull took long as hell.

 

[EIFFEL]

based on 19% drivetrain loss thats about 310 Hp

The car sounds really great, and the RPMs just kept going and going. Very cool, i assume you have a few mods?

From what I have seen, 11%-12% is more typical drivetrain loss for the NSX.

 

[clr1024]

From what I have seen, 11%-12% is more typical drivetrain loss for the NSX.

+1 was going to say the same thing.

 

[oscar_driver]

261 @ the wheels it's a great number!

 

[NSX 2]

From what I have seen, 11%-12% is more typical drivetrain loss for the NSX.

I was thinking that today, So this car has about 292 HP at the crank. I know the new GTR has about 19% loss, but its AWD which makes it worse. 11-12% is very good

 

[clr1024]

I was thinking that today, So this car has about 292 HP at the crank. I know the new GTR has about 19% loss, but its AWD which makes it worse. 11-12% is very good

The NSX uses a transverse mounted engine and tranny versus a longitudinal design which helps cut down on losses, the addition of AWD on the GTR increases those loses further.