vette_c6

well guys
i got some info about
and i hope all of you guys well tell me your opinion
every body know what does BSFC means
if you guys dont know
BSFC = Brake Specific Fuel Consumption
engine with Turbo or Supercharge or Nitrous have to Run richer then other Stock engine
so BSFC shno increased to .6 N/A street engine .5 N/A performance engine .45 N/A Race engine .4
but we will talk about Force inductios Supercharged
and i will make Small calculation and i hope it will be good for all of you guys
lets say i wanna make a car
with 600 Hp on flywheel
so the fuel Require is
Horse Power x BSFC = Fuel Require
so 600 x .6 = 360 LBS/hr
now to get what injector we need
Fuel Require / number of injector = injector Capacity
360 / 8 = 45 Lbs-hr injector Capacity
but we know now with this power and engine
with WOT
the injector Cycle will be 100%
and this is will heat the injector and every body wanna use 80% of the Fuel injector so they work good
so injector Capacity / duty Cycle = injector Size
45 / .8 = 56.25 injectors ( 60 fuel injector will be fine )

i hope that will help

and please tell me if i am wrong
many thanks

Jake@EPP

Well with a f1c on the 402, you will be FAR past 600 crank hp. We had to use a 96lb injector on the last f1c setup we did.

The 60lb injector will max out in the 700s @ the wheels.

The vette made 14ish # of boost and ended up making low 800 rwhp.

Your math looks right, but you will make ALOT more with the f1c/402

ls1290

iTrader: (20)

There is a big difference between the theoretical calculations and real world. As in the other thread about this, you will be pushing the 60# injectors hard and risking the motor. Your call to use the 60# injectors, but I would not.

Racetronix

iTrader: (2)

Jake is correct. Most people do not factor in parasitic loads on the motor like the blower, alternator, water pump etc. Factor in low battery voltage, high fuel and engine temps etc. and your required injector size will increase.

The only high-impedance reliable injector larger than the Siemens 63PPH injector is our flow-matched 79PPH units.

If you require larger injectors but at the same time you want superior drivability and performance you can not beat low impedance injectors with their faster reaction time and superior repeatability.

In order to run your factory PCM with low-impedance injectors we have this system to offer:

http://www.racetronix.com/RX-ICH.html

vette_c6

willl guys i will go for my 79 injector
with Aeromotive or Bush ( external ) and welbro 255 internal
what i have written up is a small calculation just to let people see what will happen
79 fuel injector is fine ,, i dont see any problem with it

Racetronix
i tried to buy your convertor + 85 Low injector from your website
but they dont accept our Visa
and always say get it from dealer
which is thunderrace they said
also we tried to contact thunder ,, they said they dont have it
if you have them lemme know
i will buy them for my friend ,, F-body

Racetronix

iTrader: (2)

We have them in stock here.

Contact Angie@ThunderRacing.com and she will be able to get you any Racetronix product you require quickly regardless of wether or not they have it on the shelf.

vette_c6

AEM/Racetronix Impedance Converter
is it that one ?
inside Fuel Systems
inside here http://www.lonniesperformance.com/
? the one with 500 dollar something like that ?
is it what we are talking about ?
Cuz if yes ? i will buy it today

Racetronix

iTrader: (2)

Yes, this is model # ICH-1.
Lonnie may not have the 85# injectors in stock but we can drop-ship for some dealers.