My d15b dyno sheet @9psi(need more rpm)
 

And some questions for the pros
1.Will a ramhorn manifold help my spool time or increase my horsepower at the same psi
2.Is it better to do a port and polish head or just turn up the boost
I would like 2 know which modification would yield more power without turning up the boost
And I noticed i got a boost spike to 12psi and it felt like a speeding bullet compared to the 9 psi
I wonder if the boost is too low for such a large turbo?

THE CAR-96 COUPE
Attachment 33815
Attachment 33816

THE ENGINE-D15 VTEC
https://i32.photobucket.com/albums/d...o/S4020289.jpg

THE TURBO the one on the right of course
https://i32.photobucket.com/albums/d...icture-008.jpg

THE DYNO SHEET
https://i32.photobucket.com/albums/d...o/S4020721.jpg

Re: My d15b dyno sheet @9psi(need more rpm)
 

that turbo is way too big for your motor. you need a medium sized t3 at the most a super 60. definately not that holset. its most likely surging and under the efficiency range, either turn up the boost or get a smaller turbo.

Re: My d15b dyno sheet @9psi(need more rpm)
 

I'd say for 9lbs, you're right where you should be. That's pretty good power for a 1.5L ;) But that's still way to big...get a 48/60 and run it at 9lbs. I bet you get better results

Re: My d15b dyno sheet @9psi(need more rpm)
 

WHat these guys said... oh and beautiful car btw i even like the pin stripe ;D

Re: My d15b dyno sheet @9psi(need more rpm)
 

that turbo isnt too big
keep the turbo and up the boost

Re: My d15b dyno sheet @9psi(need more rpm)
 

Those pics are too big for this post.

Re: My d15b dyno sheet @9psi(need more rpm)
 

You dont need a smaller turbo, you just need a bigger motor :6

Is your waste gate dumping right in the engine bay?
What's with that larger flexile hose under the charge pipe?

Well done, nice stuff.

Re: My d15b dyno sheet @9psi(need more rpm)
 

just wondering....whats your set up?

Re: My d15b dyno sheet @9psi(need more rpm)
 

first off nice car. and clean set-up. to answer your questions...

1. Yes a nice manifold like a ramhorn will help the turbo spool up faster due to smooth equal length runners and collector. and it will also make more power on an identical set-up and boost level than a different manifold.

2. if your motors built to take more boost throw it at it... however when ever you do things like a Port and Polish.. Cams.. Cam gears.. etc. etc. you make the motor more efficient. Which means you make more power at the exact same Boost level. Hope this helps out a little.

Re: My d15b dyno sheet @9psi(need more rpm)
 

i had one of these motors once and chiped the ecu and reved it to 8k everyday for a year till i sold it. you just need to chip the ecu and rev it to 7500 just to give you a little more time to stay in gear. i say great turbo and great motor good luck