With a Kinetix plenum and a z-tube, I got 248 HP at 6021 RPMs and 243 lb/ft at 4761 in 5th gear on a Dynopack dyno at GRD Performance.

I'll post it after I get it scanned.

It was 92 degrees with about 80% humidity.

 

very good numbers

 

yeah... pretty good number..
I have not dynoed my coupe yet.. can anyone please tell me how many whp should I get with my performance mods listed in my signature? Thanks...

 

Great numbers bro. Congrats.
C.

 

damn thats surprisingly high. strong motor you got there.

 

is that GRD in Naperville?

 

Kenchan,

Yep, that's GRD in Naperville with the famous Tuan. He really is a knowledgable guy though. If you're in the area and need any work or tuning, he comes highly recommended.

 

Doesn't the dynopack give higher absolute values than a dynojet? My car got 277 on a dynopack and 249 on a dynojet.

Any ideas what stock coupes have put down on that particular dyno?

 

^thats what I thought...

 

Going into the dyno session, I did a bit of reasearch on the dynojet vs the dynapack and found a couple of interesting bits of info. This is from a sport compact article:

"What we found, from our two-wheel-drive tests, is that the Dynapack and Dynojet give surprisingly similar readings. If you compare a 7-second pull on the Dynapack with a third-gear pull on the Dynojet (which happens to take 9 seconds), the charts agree to within about 2 hp. The same is true when comparing a 15-second pull on the Dynapack with a fourth-gear pull on the Dynojet (fourth gear, in this case, takes about 17 seconds). The agreement between dynos was similar on both cars.

I actually performed this test in an effort to determine some sort of reliable conversion from one measurement to the other, but it appears that no conversion is necessary. As with any dyno, however, before comparing two different dyno charts, you should know the conditions under which the test was performed and be absolutely sure, in the case of the Dynapack, that the ramp time is similar."

Then I found this on the D-series Honda boards:

"The tuner Jeff Evans in Easton, PA gave us examples of other cars dyno numbers and the decided difference vs. a dynojet is his dynapack is reading about 10-12% lower than dynojet…"

From what I'm understading, the mass inertia of the dynojet rollers tends to add HP and inflate the numbers a bit.

And this guy says that Dynojets always read high as a selling point, but I don't know how much credence to lned his threory.

http://www.my350z.com/forum/showthre...light=dynapack

But it all depends on myriad factors: the last time the dyno was calibrated, the temperature, etc. The best use for a dyno is tuning purposes, so just pick one type and stick with it through all your mods ... that is all that matters.

 

I would say 240 to 250 rwhp on dynojet, it could be more or less.

 

Does Dynojet give us the least HP figure among others?
I did some calculations, if my whp is 240 and I have 20% lost, that means that my crank HP is only 300?
The base crank HP is 280 and after all of those mods I only gain 20HP?

 

It's 18% drivetrain loss on the 6mt, 20% on the 5AT.

 

Updated my post with the dynos.

 

The only way to truly know what you'll dyno at is to .... drum roll please ... get it on the dyno.