whats the biggest shot on stock timing?
01-17-2009, 05:57 PM
#1
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whats the biggest shot on stock timing? I was wanting to know whats the biggest shot i can run on stock timing and if the fuel pump will be a factor? I have a 2000 Trans am with ls6 intake slp lid tr6 plugs headers cut out i was just wondering how much i can get away with with out screwing something up. Any advice with be appreciated
thank you
thank you
Last edited by RobLS1; 01-17-2009 at 06:15 PM.
01-17-2009, 07:11 PM
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If you can get 93 octane I have heard that 150 will be fine, if you are on 91 though I'd say 125 MAX before you get any knock retard, but you really don't know unless you do some data logging!
01-18-2009, 10:40 AM
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that's about what i was thinking but if i going to spray its going to be on 101 or higher
01-18-2009, 11:15 AM
#5
I ran a 100 dry shot with small cam and bolt-ons and stock fuel pump and injectors for awhile and it never gave me problems. Once I swapped heads and cam I wired in the IAT timing tricker mod and had it tuned to pull out 6* for a my 150 wet shot. I think you'll be fine on stock timing. I wouldn't worry about pulling timing on a small shot since your timing hasn't been advanced any. Just make sure you have the fuel side covered.
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01-19-2009, 05:53 AM
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I put my first bottle through my car at the track with my 150's in, 93 octane, stock everything, no problems..... yet. however I have a timing retarder that im about to wire in, it will pull 3 degrees for me, only when the solenoids go hot.
01-19-2009, 07:09 PM
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so does anybody recommended a good programmer and im not trying to build a wheel hanging car so im not looking to break the bank just a daily street car with a few bolts ons
01-19-2009, 07:39 PM
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I agree!!! With a stock timing of 28 degrees I would do no more than a 50. You can try for 100 but your looking at potential detonation issues. What kind of plug are running?
I run 18 degrees timing on my 300 shot with a NGK T-7 plug. My EGT when I cross the 1/4 is right 1300 degrees F.
01-19-2009, 07:40 PM
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Don't waist your money on a programmer, You'll spend about 300 for a limited computer. Fork over the 500 and buy HP Tuners for your Laptop, that way you can tune your car iun your car for whatever your tunning needs are. Trust me, you'll appreciate the investment.
01-19-2009, 07:41 PM
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i was getting 4 degrees of knock on 100 shot, i would say 75 is the highest without a timing pull. Remember just because you dont knock on 100 shot, you can still make the same power by pulling a few degrees and your ls1 will be running much safer. I would think you can go with 100-125 shot with race fuel. let us know what the results are!
01-19-2009, 07:45 PM
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i think i sprayed 150 shot at stock timming once. did fine. but your always rolling the dice. after the tune i think it at like 20* with a 200 shot. but this is all on built internals.
03-01-2009, 11:13 PM
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I agree!!! With a stock timing of 28 degrees I would do no more than a 50. You can try for 100 but your looking at potential detonation issues. What kind of plug are running?
I run 18 degrees timing on my 300 shot with a NGK T-7 plug. My EGT when I cross the 1/4 is right 1300 degrees F.
I run 18 degrees timing on my 300 shot with a NGK T-7 plug. My EGT when I cross the 1/4 is right 1300 degrees F.
