My Prelude is finally finished but it didn't put the numbers out that I was expecting. The final tune showed 8psi 290 HP and 18psi 385 HP. Don't get me wrong these are good numbers but not compared to similar builds.

JE 9:1 pistons
eagle rods
iron ductile sleeved block
micro polished crank
port & polished head
ferrea valves, springs, retainers
wiesco head gasket
holset hx35
walbro 255
3 in exhaust
tial wategate, blow off valve
1000cc injectors
stock intake

I just feel that 18psi is a ton of boost to only be at 385hp. What are your opinons?

 

the dyno is just a #....bring it to the track and see what it runs.

 

cams? machined/ after market intake manifold?

 

Skunk 2 turbo cams, stock intake, tuned on crome

 

I think your numbers are decent, there is potential for more from your build. what was your target? you injectors say 500 you have about 430 at the crank.

 

What kind of exhaust manifold?

 

I'm not sure of the brand but its a ramhorn style.

 

turbo specs? cam specs? did ya check your valve lash? check for boost leaks?numbers are low

 

The tuner has been messing with my car for 8 months now so im not sure about all that stuff, but im goin to pick it up tomorrow. What should I do?

 

that might be your prob rite their....tuner had it for 8 months?

 

Yeah they kept putting it off and making excuses why they weren't finishing it.

 

If you live in eastern PA i know some crazy tuners in nj and ny that do solid 150$ dyno tunes in less than an hour and a half on the spot by apt

 

A new manifold for sure, port the head, take it to a real tuner and tune it on a real program.

 

I live in western PA, basically Pittsburgh.

 

Looks like im on the hunt for a new program.

 

Im might know where a Hondata S300 is floating around, if not i can get you a new one. Ill always help out a fellow Grunt...

 

Specs on turbo?

 

Your cam timing may be off one tooth. ?

 

My bet is on the turbo, not the tuner.

 

What size turbo? A bigger turbo will make more power on less boost. If you are on a turbo like a 18G, you will have a problem making power like most DSMs.

 

that sux man.

 

anyone can find a dyno to make their car numbers look high. As mentioned above, take it to the track or drag strip and
put some real numbers down.

 

He said holset hx35, those are for a 5.9L cummins. That turbo should make incredible power on that much boost. so reguardless of the dyno being off it shouldnt be off nearly 150-200 hp.

I'm thinking it may be your cam timing (your other post you mentioned high EGT's) your stock IM is limiting you a little, but not that much.

 

Ditch that Crome crap and get some real management and possibly another tuner......
Don't get hung up on those Dyno #'s. And remember PSI is almost meaningless. We can talk CFM if you want to.
There are so many issues that could be present, but I think starting with tuning should be #1.