Will 50# injectors be enough to feed this combo? This package is going in My SS soon.
Thanks Jeff 96 SS

396 cubic inch stroker motor (.030 over) 9-1 Comp
4-bolt main block
Lunati 4340 forged crankshaft
Lunati 5.85" Pro Mod Rods
JE Custom Pistons
Custom Comp Cams camshaft (224/236 114)
Comp Cams R-series Lifters
Custom Ported AFR 190 heads
O-ringed heads / receiver grooved block
SCE Copper head gaskets
BBK 1000 CFM Throttle Body
Rollermaster Billet double roller timing chain
Mezeire Electric Water Pump
Intake
ATI D1 Supercharger (17psi @ 6600 RPM)
Three Core Intercooler
Mufflex Custom Mufflex Blower Intake
50# MSD Fuel Injectors
Custom fuel injector rails
Complete Custom Fuel System
Paxton 1000 Horsepower Fuel Pump
-10 stainless steel braided fuel feed line
-6 stainless steel braided fuel return line

 

Probably not. I'd run bigger(low impedance) injectors and either a FAST system or Jeff Stevens' impedance converter.

 

Exactly if you've spent that much on great parts, just buy some large injectors and something to run em (new computer or LJs box which i currently run and like).

 

Where can I get LJs Box and how much will that set me back? How big should I go on injectors with LJ's box 72# enough?

Thanks

Jeff 96 SS

 

You can get LJ's box here.

I'd say 72s would be right.

 

Last time i checked LJs box was $375+shipping.

 

I would also recommend going with 72 lb injectors. I have heard nothing good about MSD 50 lb injectors.

 

http://www.smokemup.com/auto_math/fuel_injector.php

50# injectors are good to about 590 bhp....I too think the 72# would be the better choice...that puts you inthe 720 rwhp range.

 

I may need to bigger than 72# if your saying they can only support 720RWHP. I think This combo is capable of more than that espeicially if I increase the boost.

What is a good source for big injectors?

Jeff 96 SS

 

As far as brands go I would recommend going with either Delphi or Siemen. Another option would be to look into 83 lbers. But regardless of what size injector you go with you will need an low impedance convertor box.

 

Actually, on stock fuel pressure, a 72# injector will handle 850hp. I got my Sieman's from Injector Dude.

www.fuelsystems.biz

 

I'm 99% sure that I will have to step up to 72# or 83# injectors so if anyone is interested in my 50# MSD's, then let me know.

 

I have gotten alot of stuff from Anthony at Fuel Systems. Great prices.
Steven

 

Thanks Guys it looks like 72#ers and LJ's box for me! I apreciate the help I probably would have blown up a very expensive engine try to tune with those little 50#ers in their. I'm sure I'll have more questions as the project progresses. I'll be sure and let you know how much this monster makes to the wheels when finished.. Any guesses?

Thanks Jeff

 

You will want a real fuel pump from Weldon or one like it.