So in the spring I hope to add an IC and run 13-14lbs boost. I know i need bigger injectors because duty cycle hit 95% with the stockers and that ain't good.
So what is the ideal fuel injector set up? I'm under the impression too big primaries makes the car run rich at idle, too big secondaries cause a stumble. So whats a good solution?
Also, I know the supra fuel pump works well but what other after market fuel pumps are good for the price?
thanks for all info!

 

with proper tuning ur car should run great no matter what the set up

u can run 850 primaries ....1300 secondaries is how many people run but at 400 bux ur almost better off getin a rail for 1600's and runin bosh 1600's

ive heard the walbro pump is good...all the nippon denso ones are the same..the rp..the suprs tt..

 

from what I have read, you don;t want to go bigger than what you need. As running too low inj. duty, or lower fuel pressure will reduce the efficiaent sray pattern. I haev also read articles that talk about the benefits of raising fuel pressure with same size injectors. as the spray will be better and more combustable. I really don;t know thought maybe we could get those who do to post on the subject. I too am thinking up upgrading my fuel system, but I don't need overkill with stock port and turbos. I just awnt to drop injector duty like 15-20% at WOT.

 

Same here, I'm thinking of going with drop in 1200 or so secondary and a drop in pump. The way I see it is going with 1200 sec adds a little more than going with 850 primary and youd probably get better gas mileage while cruising since your only using 550's instead of 850's.

Now if only we could figure out who has the best most reliable stuff.

Later,

 

if ur gonna run the stock rail u just have to get your stockers bored out...jason..rx7 secrete....send them to rc engeinering
if not ull have to get a new fuel rail made to run top feed injectors

as far as pumps go everone has theri personal favorite...