JDMBOLONI

HELP! I'm about to buy injectors to replace the RC SL9-310cc that are ruining my motor as we speak. I can get Precesion (never heard of them) 440cc or 525 cc for a good price but I want to get RC's because of the flow chart and the peice of mind. I don't think that I have an option to get RC injectors between 440 and 550 for my application so my question is.... what should I do??? I estimate around 250HP at the flywheel so I went on the RC site and found out that I need at least 487cc of flow but I thought everyone uses 440's and 450's??? Should I buy the 525's or the 550's??? HELP!

Here's the setup:

2000 C5
Clutchmasters F/C/PP
JRSC @ 9-10 p.s.i. (B20 pulley)
AEM Fuel Rail @ Cam Gears (settings anyone?? JRSC??)
RC SL9-310
JDM 2.5" 4-1 Header
Forged J.E. 9.7:1 Pistons .25" over
OBD-2B to OBD-1 Harness w/ P28 Uberdata chipped
ARP Studs @ 70 ft/lb torque
Greddy Oil Catch can (creating unwanted crankcase pressure??)

So please help me guys.....

Finland

440cc will be more than enough for 250fwhp. I'm using 440cc and making 295whp, and they aren't quite maxed out either.

CRVRX

Precsion injector are and excelent choice.
For a jackson supercharger you won't need over 525 cc injectors. You will need something to control them , ie Hondata, AEM etc and then have the car tuned.
440 cc is enough to make 300whp on a Honda ( We do it all the time).

Boofster

I am running about 280hp on RC 550's and my duty is at about 70%.
(Neptune + Turbo + LSVTEC)

JDMBOLONI

So you guys are saying I can run the 440cc injectors?? But that isn't the minimum recomended size for a 250HP forced induction 4 cylinder. Follow this link and you will find out how to accuratly measure injector size for your application http://www.rceng.com/technical.htm so with that data I think I'm going to buy the precision 525cc injectors. Anyone have other input? Thanks H-T

BTW my calculations were

<U>(250 x .60)</U> = 47 lbs. per hour
3.2
Convert to cc / min: 47 x 10.50 = 491 cc / min

11psiTurboSI

440cc will be enough.

JDMBOLONI

anyone else??

JDMBOLONI

no one else can help me? i want to know why i shouuldn't buy 525cc injectors