go hit a dyno that does mostly the import boys and that should get you where you want to be number wise what does it run at the track? and are you happy with the way it feels powerwise? don't get caught up too much in the numbers (except maybe for A/F), sometimes they don't really mean much.

 

If you were asking me, I usually dyno at New England Dyno, accept for the Dyno tuning that was done at JDM. Both are on Dyno jet dynos.

My higher numbers were at New England Dyno. My numbers are STD correction for comparrison.

But like everyone says, it's not all about the dyno numbers. My truck runs slower et's then other guys with less power.

I disagree with that. I've seen huge hp gains on these truck from guys running mail order tunes which have thin in the high 10's, low 11's as far as a/f goes.........then get dyno tuned and brings them up near the 12 mark. The bottom line is that tune is off and i'd junk it anyway.

477 Ftlbs is definetely on the low side for his mods. I would think the most would agree. I'm thinking maybe some killer belt slip? which is why the hp numbers aren't so far off but the torque is??

 

Is your intercooler clean? I know that cleaning mine out helped considerably.
just a thought though.

 

True, I'd expect to see him closer to 495. A dyno tune by one of the good tuners could probably find him his lost 18 ft/lbs

 

I don't think its belt slip. I see 15lb of boost on the Autometer boost guage.

I have good reason to think its not, even though I cleaned it out last August.

 

It's the friggin heat.

You'll lose a lot EVEN WITH correction in the heat. The DynoJet corrections only allow for small % changes based on ambient air conditions. It doesn't take in account the higher temps and how they affect forced induction.

Dyno on a colder day, you'll get some power/TQ back. And I've seen some who run 60# injectors and push more fuel at tip in get bigger TQ #'s with more fuel at lower RPMs.

 

Comparing what people did in April at the Dyno day in 55 degree temps (inside temps) and the June dyno with 80 degree temps, there was no noticable difference. Yes, two different dynojet dyno's, but the numbers both times were typical results. Last September in 90 degree internal temps, I put down great numbers too. I think the correction formula's do a pretty good job.