cjg454ss

iTrader: (27)

i have a 370 with pt88mm front mount. i have 60lb injectors that are reading 120% at 14-15psi. i have a-8 feed with twin pumps starting at 60psi and boost referencing. i scaled the injectors in hptuners. is that the only thing i needed to change. the car runs great. i was just wondering if i need to change anything else for the injectors or if they are just out of steam. would increasing the base pressure to 70 instead of 60psi get me down to 100% or do i need to just get some bigger injectors?

cjg454ss

iTrader: (27)

i just used the calculator and it says im making 1250hp. that cant be cause i havent turned the boost up yet.

ZL1Killa

iTrader: (17)

did you scale the IFR correctly according to my spreadsheet here on ls1tech?

what twin pumps do you have? twin 255s? twin 340s?

how much power are you making so far?

double check your fuel injector ratings to be sure they are rated what they are.

405HP_Z06

iTrader: (11)

Well, with the absence of any other data this is what I came of with. From my calculations you are very close to if not at the limit assuming you want to stay below 80% duty cycle.

Here's the calculation:



You may want to touch base with FICINJECTORS (sponsor) about some larger injectors if your going to turn up the boost.

First, I would make sure you scaled the injectors correctly. Can you post your IFR table?

cjg454ss

iTrader: (27)

i have twin 340s, -8 feed. im not sure how much power im making. ive ran 6.6s @115mph in the 1/8 in december leaving soft. with a turbo400 and 3.73 gears and 4k converter.

ZL1Killa

iTrader: (17)

Do what 405HP_Z06 is saying, talk with FICinjectors and see what they say... you may need to go to a 79# injector or larger.... just FYI racetronix makes a high impedance (plug and play with our cars) 79# injector.

cjg454ss

iTrader: (27)

yeah thanks for the information. i might just run it this year as it is.

Slowhawk

iTrader: (12)

I could see that T400 eating up the injectors.I would personally run 96lb injectors in a setup like that.

cjg454ss

iTrader: (27)

yeah i think i may just upgrade. wheres the best place to get some 96s and a inj. box?

Mike TexaSS

iTrader: (2)

Th-400 eat power? Your retarded...LOL

MotleyDrew

iTrader: (4)

Ford Racing now has new 80# High Imp injectors that are actually 84lbs @ 43.5psi !!!

405HP_Z06

iTrader: (11)

Siemens injectors with a USCAR connector. I question the flow figures stated by Ford. The green tops are stated by Ford to be 42 lb/hr @ 39.15 psi and that’s been proven to be pure bunk. I bet they are 80 lb/hr @ 3 bar.

http://www.fordracingparts.com/parts...KeyField=10702

FICINJECTORS

iTrader: (30)

the new ford racing 80 is a seimens deka that just came out. They are 80 at 39 and 83 at 43.5 we have them coming for a lot less. We will take in trades also on your 60's for those who want to upgrade to the 83 pm us

405HP_Z06

iTrader: (11)

Thanks Rich, have you confirmed the flow numbers provided by Ford?