86_GT_5.0

in summit they reccomed that i use the 30# injectors i think that is a little overkill amd if so do i have to change my fuel pump?

Mustangkiler

24 would be good, and yes id change it to a 190 if you dont plan on using nitrous or supercharger later on.

FullAuto

24s

86_GT_5.0

im using zex wet kit right now what should i do

86_GT_5.0

also i have a stock fuel pressure reg should i get a adj one? just need some advise

WhiteWindsor

On my last foxbody i was intrested in TF top end kit and like you thought 30's were too much. I called their tech line and they said use 24's. Since you will have it apart an adj. fuel press. would be nice. If you plan on future upgrade go ahead and get the wahlbro 255 pump.

https://mustangforums.com/upfiles/70...86D36A0B18.jpg

[IMG]local://upfiles/70384/246555DAE88648E88B69ED7E325A5105.jpg[/IMG]

[IMG]local://upfiles/70384/F4BFF8AB4FDC410892C8161C67F877AA.jpg[/IMG]

CantStopTheFox...

If you upgrade your injectors, you should probably go with a bigger pump. I threw a Summit Brand (Walbro) 255 in mine since I was in there....

Since you are upgrading your pump/injectors, it would be nice to have the capability to adjust the pressure.....I use a BBK and an Autometer UltraLite Fuel Pressure Gauge.

86_GT_5.0

thanks for the info guys now im just not sure on how much to increase fuel pressure or to leave it stock righ now for the nitrous i have to have min of 38 psi so 40 or 45?

NYMustang50

24's is what they recommend. http://www.trickflow.com/product/enginekits/pr_enginesspecs_ford.asp


NOTE: Kits were dyno-tested on a 306 cubic inch engine with 9.5:1 compression, a 70mm throttle body, 24lb injectors, 190 lph fuel pump, mass air, and 10° base timing.

thats what it says on the website.

piedraco

I have 30# injectors and a 255lph pump. I rather be safe than sorry. running out of gas at WOT is detrimental to the engine.
handle that