new inj.s needed or what?
 

Im in the middle of a cam swap and need to figure out if I HAVE to get new inj.s, or if the stock ones would work w/higher pressure. also, I have some LS1 inj.s (97-98 corvette) available to me, but they are rated at higher press. right? so wouldnt our LT1 inj.s be the same output at higher press. and be the same as those?

here's the new setup.


95 LT1, lightly ported heads by me. will get them flowed, but figure on them being around 245ish @.550 lift. port matched intake, smoothed runners. 52mm holley tbody. comp. cams 233/239 112 lsa .569/.577 lift w/1.6 pro mag RR's, EX 612 springs. otherwise stock shortblock. ported maf, cai, free mods, edelbrock midlength headers, offroad pipe, edel. catback. 3:73 gears, 3000 stall conv., shift kit 700r4 tranny. MSD 6 AL, MSD wires. I am getting a dyno tune w/wide band sensor so it will be right on A/F wise.


will the stock inj.s handle this or is it def. too much demand for them? lets just pretend this is a best case scenario and everything is in like new cond. for the sake of the question. any input would be appreciated. I dont want to spen alot of money on inj.s if I can just raise fuel press. enough to compensate.

chris

Your gonna need 30 lb injectors fro your setup. The LS1 injectors are rated at 28.5lbs at like 60 PSI so they are about the same size as the 24lb units in your car.

Look on ebay, the 5.0 guys are always selling ford motorsport 30lb injectors for $100- 150 a set.