rc 720 cc at 45 psi of pressure whats max hp one could make?400-450whp
setup t3-60-1 .63 built sleeved b16 pistons rod valves 68mm tb victor x hondata 255 warlboro. run 15 psi all day but I'm afraid to turn up the boost because of the injectors. It is in a 1988 crx.
Should I get 1000cc? thats a lot for an injector 200 a piece.
Also, 720 and race gas?

 

720's should be good for more than 450 whp

 

turn the fuel psi to 60 . and you are good for 450 .

 

i think you could get close to 500 with those i have 780s that are rated for 550 so 500 shouldnt be a problem

 

Why the hell would you run 60 psi of fuel pressure?

I ran out of fuel making 558 whp on 720cc injectors at a base FP of 42.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 22psicrx &raquo;</TD></TR><TR><TD CLASS="quote">Should I get 1000cc? thats a lot for an injector 200 a piece.
</TD></TR></TABLE>

its about 320 shipped for a brand new set of 4 injectors
not 200 per one

 

750's at 80% duty cycle should support 430hp @ 43.5psi.

But your FPR is a 1:1 so it'll increase pressure while boosting to get to your goal. Should easily support 450

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by integra_gsr98 &raquo;</TD></TR><TR><TD CLASS="quote">Why the hell would you run 60 psi of fuel pressure?

I ran out of fuel making 558 whp on 720cc injectors at a base FP of 42.</TD></TR></TABLE>

their is nothing wrong w/ raising fuel pressure to 60psi, if you ask me.

Currently I'm tuned on 60psi w/ my 1,000's.

 

So do you think I could max the injector at 80% before I need race gas or a new set of injectors. comp ratio is 9.0.What about 15 degrees of timming at fill boost or should it be less for a starting point.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 22psicrx &raquo;</TD></TR><TR><TD CLASS="quote">So do you think I could max the injector at 80% before I need race gas or a new set of injectors. comp ratio is 9.0.What about 15 degrees of timming at fill boost or should it be less for a starting point.</TD></TR></TABLE>

The first question was do'able. Now you want us to preform magic by predicting exactly how your engine will react to your fuel at your preticular part of your city Your second question can be found w/ dyno tunning, not on HT.

 

I did some logs. Duty cycle at 77% at 18psi. Should I now change to 880cc or higher. Just asking questions. The car has been running perfect for 9 months just think with the turbo and biult motor that I'm not getting my moneys worth. Witch means if the turbo could make more and the motor can should change the injectors for safety sake.

 

http://www.rceng.com/technical.htm
that should help