As some of you know I have purchased the JUN lll head package. I plan on purchasing the JUN piston's and rod's with the bonus I will recieve at the end of my tenure with the Olympics. Now for my question to you guy's (and girl's). If I use the JUN ECU along with the rest of there parts I should end up with a 12:3-1 compression ratio, now with this compression ratio along with the type-3 cams, do you guy's think I should purchase 270cc 310cc or stick with my stock injectors (240cc?).

Any help would be greatly appreciated.

 

i have 12.5 compression and i have the same dilemna. If you want over 220 hp then get 310's but if you aren't searching for more than that. YOu might have to run low fuel pressure and not get correct spray pattern.

 

I use 310's w/ my set up at 12.5:1 and works great, um not sure what the Jun ECU will do, but w/ my FC they are pretty much set at stock @ 100% @ idle, and 55 psi w/ vacuum on fuel pressure, best of luck

 

I have 310's installed and without an increased Fuel Pressure the PowerFC told me that I was hitting 98.6% duty cycle while running around buttonwillow, but then again I don't have it fully tuned just yet, so who knows what I'll be running at when I'm done.
Austin

 

Did you guys get the Power FC, straight from Apex-i or some other dealer?
IM me if you like, looking to use one with FI and 440 injectors (I'd get it all from the same place if I could).
thanks, ed


[Modified by zygspeed, 11:44 AM 8/9/2001]

 

Thanks for the help

 

No way, Mr. Zygspeed is goin F/I? oooo haha well yeah they work great w/ the FC and 440's and a 2bar map or the 3 bar from apexi on 14+ psi....I got mine through a friend and you can either go through Dan/God or XS engineering in Kalifornia