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Highest Shot To Run On Stock Motor

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Old Sep 16, 2004 | 09:37 AM
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Default Highest Shot To Run On Stock Motor

I have a bolt on ls1..headers and y-pipe are coming next. Whats the safest size shot to run...with having everythign like a FPSS, timing tuner, all that.
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Old Sep 16, 2004 | 10:22 AM
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175 hp. Atleast that is as high as I have gone WITHOUT a fpss and timing pulled. Now that I have H/C I only go 125 hp now.
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Old Sep 16, 2004 | 10:27 AM
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I do not recomend anything over a 150.If you spray the 150 I would suggest a fuel pump.
Dave
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Old Sep 16, 2004 | 10:45 AM
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Id say 150 depending on what kit. a nice tune will help, and the right plugs.
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Old Sep 16, 2004 | 11:08 AM
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spray it till you kill it. then build a new motor and back it off a tad.
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Old Sep 16, 2004 | 11:33 AM
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i have NGK plugs in the car already. Was possibly gonna go with a fuel pump booster?? beleive thats what he said. So 125hp shot would be ok? And a 150shot with a fuel pump.
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Old Sep 16, 2004 | 12:36 PM
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Theres more than a few LS1s around here that run 150 on stock pump and of course stock bottom end. This is with all available safety measures in place, good fuel, timing pulled, and some TR6s. The only time Id watch out for this is in really hot weather where detonation would be a bigger possibility.
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Old Sep 16, 2004 | 06:56 PM
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I have heard of a guy in orlando spraying a 200 shot on his t/a stock no fuel pump. Doesn't mean it is right but I haven't heard of him blowing it up yet.
I tried the 200 out on my car at it just blows the nittos away at any speed.
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Old Sep 16, 2004 | 07:07 PM
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the 150 puts a real strain on the fuel pump. it's hard for it to keep up. you can run a 150 without a fuel pump, or a larger shot, but you run the risk of running lean and not knowing untill you are up in smoke! a inline pump is cheap insurance....along with a fuel pressure gauge.
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Old Sep 16, 2004 | 07:27 PM
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Originally Posted by Need2gofaster
the 150 puts a real strain on the fuel pump. it's hard for it to keep up. you can run a 150 without a fuel pump, or a larger shot, but you run the risk of running lean and not knowing untill you are up in smoke! a inline pump is cheap insurance....along with a fuel pressure gauge.
I agree with you I have always heard that any thing larger than a 100 shot should have a fuel pump, but here is a link to a guy who is running a 200 basicaly stock and as I recall his a/f is about 11 to 1.

http://www.stealthram.com/2000formuladynos.html
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Old Sep 17, 2004 | 02:29 PM
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Don't waste your money on an inline pump. Get a walbro 340 intank pump or the Ractronix setup. FWIW, I ran a 150 shot for over a year with no safety features. Was I taking a chance? Yes, a little 1 in my opinion. Considering my experience with nitrous, I wasn't too concerned, until I put H/C and a couple more boltons. There is only so much your stock bottom end can handle. If I were you and a lil concerned. Install TR6s, install intank pump, and setup window switch and fpss and you should be all set for a 150 shot with out any worries.
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Old Sep 17, 2004 | 04:27 PM
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I have seen stock cars run fine on a 150 and I have seen stock cars run out of fuel on a 100 shot.To be honest with you every car is different.Even though they have the same fuel pump some of them are weaker than others.I know guys spraying a 250 shot on a stock bottom.I dont suggest it but people have been known to do it.Some people can afford to take the chance some cant.My self I can afford it but why tear it up if you dont have to.
Thats why I always give good safe advice.It doesnt mean you cant go further.It just means you are taking a risk. Ill let the dare devils wonder out there on there own.Ive done it.When it comes to most people they want the good safe advice.If thats what you want im your man.
Dave
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Old Sep 17, 2004 | 04:52 PM
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Originally Posted by Nitro Dave's Nitrous Outlet
I have seen stock cars run fine on a 150 and I have seen stock cars run out of fuel on a 100 shot.To be honest with you every car is different.Even though they have the same fuel pump some of them are weaker than others.I know guys spraying a 250 shot on a stock bottom.I dont suggest it but people have been known to do it.Some people can afford to take the chance some cant.My self I can afford it but why tear it up if you dont have to.
Thats why I always give good safe advice.It doesnt mean you cant go further.It just means you are taking a risk. Ill let the dare devils wonder out there on there own.Ive done it.When it comes to most people they want the good safe advice.If thats what you want im your man.
Dave
Such is what a sponsor should provide. Leave to us hoodlums to push the envelope, the pros will tell you how to keep your **** together for sure. Its the mark of someone in the industry to tell their customers what is safe, despite it maybe far less than what they would do on their own toys.
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Old Sep 18, 2004 | 01:04 AM
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Well I ran a 200 shot on a single stage NX Gemini twin MAF kit on a stock lower end with out any problems. I would suggest all the saftey features, window switch set at 3000 RPM on the low end, WOT switch, FPS switch, a Walbro 340 intank pump, 2 degrees of timing for every 50 HP shot, A/F set rich 11.8:1 or better and good bottle pressure, at least 1000 PSI but I prefer 1150 PSI. 10.08@136.7 with a shitty 60ft.

Originally Posted by 99Ws6TransAm
I have a bolt on ls1..headers and y-pipe are coming next. Whats the safest size shot to run...with having everythign like a FPSS, timing tuner, all that.
Reply




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