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

150 shot on stock fuel pump

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Old May 3, 2004 | 07:37 PM
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Default 150 shot on stock fuel pump

Is anybody running a 150 wet shot on a stock fuel pump? It seems like my car is loving the 100 shot and I wanted to ask around if anybody is doing it with there stock fuel pump.
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Old May 3, 2004 | 08:59 PM
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I think it's possible, but keep in mind how big of a chance your taking... I would just upgrade the fuel pump.
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Old May 3, 2004 | 10:27 PM
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is the fuel pump the only thing to be upgraded??
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Old May 3, 2004 | 11:07 PM
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Originally Posted by TSAEB
is the fuel pump the only thing to be upgraded??
yes, the stock rails and injectors should be adequete for a 150-shot.
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Old May 4, 2004 | 11:32 AM
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I wouldn't worry about the fuel pump. I've heard many times without variation that 150 shot is too big for stock pistons. I would personally go with a 125. Better ask someone you trust though because that's only my preference.
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Old May 4, 2004 | 01:18 PM
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Run a fuel presure saftey switch and you'll be fine. Eventualy upgrade to like a walbro 340 or even a 255 and you'll be good to go.
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Old May 4, 2004 | 11:10 PM
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what about a 150 dry shot?
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Old May 4, 2004 | 11:18 PM
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Originally Posted by Formula96
what about a 150 dry shot?
That's just asking for a dead motor. I would only run wet above 100.
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Old May 4, 2004 | 11:51 PM
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I run a 150 wet on stock fuel pump and stock internals. My motor has 210k on it also. rear end and tranny all had that many miles on them also.
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Old May 5, 2004 | 12:09 AM
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damn 210K on a 97, shoot, I only got 64K on my 93. Its begging for the bottle.
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Old May 5, 2004 | 07:44 AM
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You'll be fine. I run a 150 shot with stock fuel pump, rails, injectors, and have 80k on the car. No problems so far... However, I do recommend that you get a timing retard controller before popping the 150. Oh, and you best have the colder plugs, like NGK TR6's or you might be picking up pieces of your engine along the roadway...

Last edited by hot_red_z28; May 5, 2004 at 07:52 AM.
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Old May 7, 2004 | 11:13 AM
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it will be fine
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Old May 8, 2004 | 07:14 AM
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I have been doing it with a TnT kit for well over a year and I spray often.
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