i have a 93 lt1 with mid-tubes an intake and a cut out.will i be able to hit a 150 without an upgraded fuel pump?i spray a 100 shot right now and have tr6 gapped at .35

 

buddy sprayed a 150 on his stock LT1...started making funny noises later....

 

did he just slap it on his car?did he still have stock plugs..

 

I sprayed my stock lt1 car with a 150 for years with no problem. I used tr6 plugs and put race gas in it for safety measures when going that high as well. Forgot to add it had 6 degrees of timing taken out of it too.

 

but will i be able to spray without taking timing out and running 93octane.i dont have money for a pcmforless/madz28 tune.

 

I'd wait for a tune...just to be safe....

 

That would be asking for trouble...

 

i already changed the jets out..but now yall are scaring me lol

 

Well im not sure what kind of timing a stock lt1 runs but with enough fuel and if your on stock tune id think ud be fine. Possibly maybe jet the fuel jet on the rich side like alittle bit bigger then the jet chart says. We have sprayed numerous stuff I sprayed a stock 91 gmc with a 150 hit no problems. I had the timing up on the truck so high if I would go any higher it would ping and I sprayed it like that and didnt have any trouble. Obviously I probably wouldnt do that on my performance vehicle it but id prob hit it with the 150.

 

changed the plugs otherwise stock. I personally wouldnt do it on an LT1, but im sure there are people that have with no problems. Seems anybody sprayin with out caring about blowing up their engines seems to last forever. Anybody that sprays and cant afford to blow it up...well always happens lol

 

i dont have stock plugs in i have one step colder..

 

i didnt take enough timing out on a 150 and i blew a rod threw the oil pan, i have a msd digital 6 for a lt1 with the wiring if ur interested almost new let me kno

 

Lol that seems to be the case sometimes haha.

 

Staying conservative on the timing is one easy way too keep your ringlands happy and motor together. In the OP's case, at the BARE MINIMUM I'd use 100 octane to help against detonation. If you're running full timing (or if you've had a tune you could very well be running more than stock timing) you're asking for trouble with a shot that big on a stock bottom end IMO. Either pull some timing or throw in some 100octane/octane booster.

 

Can you? => Yes

Should you? => No