Stock Dyno - 203 WHP
 

I dyno'd the S2k today completely stock, and I was a bit surprised at the results. The car did 203 WHP @ 9250 RPM. I was definitely surprised it held power so well past 9000 RPM. This was at a local dyno day on a portable Dynomite Dyno. It's notorious for reading high, but it seemed a little more calibrated today. Should I be surprised by these numbers, or is this about par for the course on a stock AP1 S2000? The only modification I've done on the car is removed the intake box and installed a cone filter directly on the OEM intake tube.

Attachment 130013

Video -


http://www.youtube.com/watch?v=eYQRQiy01mg

:confused:

203 hp isn't unheard of for an AP1.

10,000+ rpm is. :ponder: Looks like the dyno's tach pickup is messed up? Or have you really modified your car to rev to 10k?

Another AP1 dyno:

https://www.s2ki.com/forums/index.ph...mage&img=38795

[QUOTE=Elistan,Jun 21 2008, 05:28 PM] :confused:

203 hp isn't unheard of for an AP1.

10,000+ rpm is.

Video -

http://www.youtube.com/watch?v=eYQRQiy01mg

So your completely stock s2k revs to 10,000 rpm....?

The dyno rpm pickup is definately messed up. 203whp is average for a stock AP1. But you do realize that the stock ecu cuts fuel at 8900rpm, although the highest rpm ive ever recorded on my VAFC2 has been 9020. Its literally impossible to rev an AP1 to 10,000 without an ecu upgrade and possibly some valvetrain work.

what's with the low torque? 120ish maybe?

My thoughts exactly. I knew there was something going on with the RPM pick up. I was unsure of when the AP1 actually cuts fuel, but the power band makes a lot more sense when you say fuel cut is 8900. That would put peak power around 8500, which is about right. :thumbup:

240 HP @ 8,300 rpm; 153 ft lb @ 7,500 rpm is stock crank numbers. I'd say 123 WTQ is right on with that.

Honestly the dynomite dynos are crap. I went to one a while back and I got 170whp and like 120wtq with an AFR of 17.3....

A few days later went to a dynojet and got 206whp with afr in like 10s or 11s. Go to a better dyno like dynojet or mustang.

I did this simply for fun at a local dyno day on a mobile dyno. I agree the Dynomites are junk, and I would never do any sort of real tuning on one. My STi is usually tuned on either a Mustang Dyno or Dynapack.

Ap1 redline is 8900...fuel cut off is closer to 9100.

Thanks, negcamber. I knew it was something like that :)

my jdm ap1 cuts off at 9250+ stock ecu.

There is no "accurate" dyno. The only accurate part is the change in horsepower between two runs performed on the SAME exact dyno.

You're correct; however, some dynos are higher reading than others. Some also are not calibrated to the same extent. The one I did this run on was, in my opinion, junk.

No, thats exactly my point. All dynos read differently hence why the only accurate part about the dyno is the change in hp/tq between two different runs performed on the same dyno :)

I wasn't arguing with ya. ;)