GMT 800 & Older GM General Discussion 2006 & Older Trucks | General Discussion

cam isnt big enough

Old May 31, 2007 | 08:07 PM
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which part of houston are you coming through?
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Old May 31, 2007 | 08:14 PM
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What size injectors are you running with that cam? You could be running out of fuel.
Did you tune A/F, shift points, rev limiter, lock up?
That cam should be pulling plenty hard from @3000 on up.
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Old May 31, 2007 | 08:31 PM
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i don't think a bigger cam will help you any.
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Old May 31, 2007 | 08:55 PM
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thats a badass cam u got there..i would love to try it on my 5.3..i dont see why its not working badass on your 5.7..wut exhaust set up are u running? u should have Nelson check ur tune again, there's probably some tweaks that need some fixing.
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Old May 31, 2007 | 10:22 PM
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stupid question, could my converter be too tight causing this, because it seems like when i put it in third gear its better and as far as injectors i was told 28# but ill check part #'s, that should be big enough huh???
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Old May 31, 2007 | 10:24 PM
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I would bet your injectors are pretty damn close to being static.
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Old May 31, 2007 | 10:45 PM
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1slow01Z71 - i just went and checked and only to find out that i have been told wrong i have the 12555894# 26#ers so they probably are about static.
but how would that only affect it in third gear, not any other gear
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Old Jun 1, 2007 | 10:43 AM
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im on the stock 5.3 injectors with the full bolt on ls1 and bigger cam. i think im somewhere around 97-100% dutycycle.
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Old Jun 1, 2007 | 04:31 PM
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ill be traveling I-10 through beaumont, i dont know what the other highways are right now
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Old Jun 1, 2007 | 05:36 PM
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Originally Posted by regency
1slow01Z71 - i just went and checked and only to find out that i have been told wrong i have the 12555894# 26#ers so they probably are about static.
but how would that only affect it in third gear, not any other gear
Higher load on the engine due to a lower mechanical advantage in third and also third is stretched out alot longer so it will spend more time up in the higher revs.
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