I just had my prelude tuned by Steve Sakai! the car made 365.7hp and 295 ft pounds at 15psi! I feel that my numbers are a bit low and should have been a little higher considering my setup! I will post a dyno chart tonight! I feel my 2 1/2 inch DP and exhaust my be the culprit but no sure need some feed back

My setup
H22a
*Head ported by endyn with 3 angle valve job
*AEBS Sleeves
*CROWER rods
*Arias 9:01 Pistons 89mm
*ARP head Studs
*CROWER valve springs and retainers
*Ferrea Valves
*SC61 T3/T4
*Love-Fab Mini me manifold
*Greddy intercooler
*TurboXS type H blowoff valve
*Skunk2 cam gears
*hondata s100 with boost option
*AEM underdrive pulleys
*msd sci ignition system
*msd blaster 2 coil
*B&M full presure regulator
*High Flow cat
*Custom 2.5 inch dual Exhaust 2.5 DP
* optima battery
*str 70mm throttle body
*custom ported and polished type s manifold
*walboro 255 fuel pump

 

You got alot of goodies man..but those numbers are a bit low for 15psi on an SC61....

With 15psi you should be well into the 4's. I say go back to the tuner and bump those numbers up.

 

the exhaust is def cutting down some of your power

 

yea upgrade that exhaust

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rod. &raquo;</TD></TR><TR><TD CLASS="quote">yea upgrade that exhaust</TD></TR></TABLE>

I agree. Upgrade that exhasut and go back. Should be in the 400's on 15psi easy with all those goodies you have. Good luck!

 

2.5" dual though? doesn't that count for something? i know it doesn't mean it's a 5" exhaust but it should be flowing more than a 3". btw, where does it switch to a dual, right before the axle back part?

 

there is not really a way to have a true dual exhaust on a turbo 4 cylinder. Your exhaust is only as good as it's smallest point. Your going to see back pressure from the size of the DP even though I assume it opens into 2 pipes after that. Some one did a flow rate comparison on pipe sizes I think it was for intercooler pipes, but it will give you the same effect general.

 

It Y's right before the rear tires

 

What are the specs on the exhaust side of the turbo?

 

I would definitely upgrade to a 3" exhaust....and keep a single exhaust, get rid of the duals.

 

need some place to host the dyno graph so i can post it

 

63 a/r on the exhaust side

 

ditch the dual exhuat and just dump it and upgrade to 3'. you'll notice some gains by doing that for sure.

 

i didnt know sgt still did tuning , i have seen him on honda-tech in over a year

but yeh get some 3inch or open the down pipe and redyno

 

yeah youd make a lil more with a 3" all the way back

i have lower compression 3"turbo back gt35 non bb

at 15psi i made about 430-450 i cant remember

 

Yeah u contact him and then he meets you at the dyno!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by iROCKtheSOHC &raquo;</TD></TR><TR><TD CLASS="quote">ditch the dual exhuat and just dump it and upgrade to 3'. you'll notice some gains by doing that for sure.</TD></TR></TABLE>
3 foot exhaust would be big

 

What Spark plugs do u guys reccomend for my setup! my ignition also started to break up once into vtec!