O.k. car is getting built. Originally, I bought RC 650cc injectors, thinking 650whp would be around what I would end up. I still think this is reasonable, but I don't want to go over 85% duty cycle.

I am shooting for 530-550 whp uncorrected on a dynodynamics. Should I upgrade or am I safe?

Craig

 

I got 1000cc injectors with 564whp.

 

^^^Waitin on an edit???

 

Ok, max hp at 85% duty cycle with 650cc injectors using UTEC??? 650 X .85 is 550, I know there is a formula, but I don't know it, and this is the best I got, lol.

Is 550whp attainable at above duty cycle? Here are my build specs

GTM turbo cams
Brian Crower valvetrain
Weisco Pistons
Eagle Rods
Arp everywhere including L19
Hks headgasket
Several other things
Open dumps


Craig

 

For a smooth idle with quick response and control, I recommend HKS/Sard 1000cc low impedance injectors. That's what I'm using. I'm not sure if UTEC can control low impedance injector though...

 

Yea, that was what I was thinking, that it can't control the the low imp.

 

You should be fine with 650's at 550whp. According to Forged 650's are good to 600-650whp.

 

I have 606rwhp on sharif's dyno with 650cc injectors. Their at about 85%.

 

^^^Sweet that's what I needed to know. Thanks guys!

What engine management are you using?

 

i wouldnt worry so much. you can run injectors at over 85% duty cycle with no issues.

 

Utec

 

That's great. Appreciate it man.

Craig