LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Can my shortblock handle a 150 shot?

Old 09-06-2010, 08:10 PM
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Default Can my shortblock handle a 150 shot?

I need more power
Old 09-06-2010, 08:58 PM
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hell ya it can. be sure it's running 100% before you go juicing it obviously, then just use a fuel pressure safety switch, window switch, WOT switch, colder plugs and maybe some 100 octane. the Mallory 685 ignition box is sick for LT1s with nitrous, it gives you a built in window switch, timing retard, rev limiter and so on... 150 shot is the most i would go, but it has definitely been done many times with no problems. hope this helps
Old 09-06-2010, 10:01 PM
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It's been done. He's spraying more than 150 I think. Check it out.

https://ls1tech.com/forums/lt1-lt4-m...ck-record.html
Old 09-06-2010, 10:29 PM
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Yep, i've been doing it for 2 summers now. Probably went through 20 bottles so far and it loves it when I don't have any hiccups with my nitrous.
Old 09-06-2010, 10:39 PM
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you'll be fine with a 150 shot.
Old 09-06-2010, 11:37 PM
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whats the max for a stock lt1 with iron heads?
Old 09-07-2010, 12:04 AM
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I think you need to work on getting the power to the ground Before you add more. You should be ruig bottom 11's with that trap speed.
Old 09-09-2010, 04:09 PM
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i did it a few years back with no problems at all. my only suggestion would be to get a bigger fuel pump along with what everyone else said. i personally didnt have the retard box and window switch n stuff but if i did it again i would have them. DO NOT use any timing advance such as a programmer or any kind of power tuning. reason why i say the bigger fuel pump is once i put the fuel gauges and stuff in my car on the initial hit the pressure would drop way down i just got lucky to not tear anything up
Old 09-09-2010, 04:14 PM
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Originally Posted by 1BadAsZ
i did it a few years back with no problems at all. my only suggestion would be to get a bigger fuel pump along with what everyone else said. i personally didnt have the retard box and window switch n stuff but if i did it again i would have them. DO NOT use any timing advance such as a programmer or any kind of power tuning. reason why i say the bigger fuel pump is once i put the fuel gauges and stuff in my car on the initial hit the pressure would drop way down i just got lucky to not tear anything up
i didnt read your sig at first im sure you already have the fuel pump n stuff already
Old 09-09-2010, 08:12 PM
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Originally Posted by speed_demon24
I need more power
Well, you gonna spray it or what?? I got all my parts ordered today, mine should be back on the road by the end of next weekend and I can finish hooking up my spray. I'm gonna start small, 100 shot. When I get greedy I will still have room to pill up. LOL.
Old 09-10-2010, 07:35 AM
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Originally Posted by pyro719
I think you need to work on getting the power to the ground Before you add more. You should be ruig bottom 11's with that trap speed.
I agree. You're risking hurting a perfectly good motor with the 150 shot on top of what already is a lot of cylinder pressure, judging from your hp number.
Stock bottom/pistons?
Old 09-10-2010, 08:10 AM
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Originally Posted by pyro719
I think you need to work on getting the power to the ground Before you add more. You should be ruig bottom 11's with that trap speed.
Not gonna happen with my suspension/rear.
Old 09-10-2010, 08:20 AM
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Originally Posted by speed_demon24
Not gonna happen with my suspension/rear.
nuh uh......I'm not buying that.
Your 60' has lots of room for improvement with nothing more than a set of drag radials. My daughter's stock suspended 3rd gen does 1.79-1.80 60's with the bonestock LG4 engine (150 whopping factory horsepower!) and a 90 shot. 4th gens can't be all that bad.
Practice with that 6 spd !!!
Old 09-10-2010, 08:39 AM
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Originally Posted by bowtienut
nuh uh......I'm not buying that.
Your 60' has lots of room for improvement with nothing more than a set of drag radials. My daughter's stock suspended 3rd gen does 1.79-1.80 60's with the bonestock LG4 engine (150 whopping factory horsepower!) and a 90 shot. 4th gens can't be all that bad.
Practice with that 6 spd !!!
If I hook rear end go boom. $500-$600 differentials aren't cheap. And a car with the stock suspension would hook better than mine. This would be for the street since I don't really have any interest in the 1/4 mile.
Old 09-10-2010, 10:00 AM
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Originally Posted by speed_demon24
If I hook rear end go boom. $500-$600 differentials aren't cheap. And a car with the stock suspension would hook better than mine. This would be for the street since I don't really have any interest in the 1/4 mile.
I don't see the point in nitrous for anything other than 1/4 mile.
Nothing personal, just misunderstood your motive. My opinion only
Old 09-10-2010, 11:03 AM
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My buddy was running the 685 and the usual safety precautions. It was somewhere around the 8th bottle when his pump went south and blew out some ringlands
Old 09-10-2010, 11:08 AM
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Originally Posted by bowtienut
I don't see the point in nitrous for anything other than 1/4 mile.
Nothing personal, just misunderstood your motive. My opinion only
New cars are pretty damn fast. A stock gt500 would be a drivers race for me, a bolton ls3 vette would walk me, ect. LT1's aren't nearly as fast as they used to be with all the new cars out there. Hell I'm worried about a bolton 5.0's.
Old 09-10-2010, 11:29 AM
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You'll shoot your eye out, kid!
Old 09-10-2010, 05:42 PM
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Originally Posted by letsrun97z
My buddy was running the 685 and the usual safety precautions. It was somewhere around the 8th bottle when his pump went south and blew out some ringlands
Whats your point and how is it relevant to his question?


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