NEW JLPerformance Pulley!
#46
08-10-2001, 09:50 PM
Originally posted by JohnnyLightning
Let me rephrase what i said the new pulley leaned me down 1/2 point from my current program i'm running. no doubt the 3# of boost will lean us down dramatically. i do highly reccomend you run a chip with a program to support the 3# of boost.. as far as running the pulley without a chip i really don't know for sure i do know on the 99-00 the air fuels were in the 10.9 range the new 01's are much leaner. i might have a 01 here @ the shop i'll check the A/F before and after the pulley install without a chip and post the findings.....JL
Let me rephrase what i said the new pulley leaned me down 1/2 point from my current program i'm running. no doubt the 3# of boost will lean us down dramatically. i do highly reccomend you run a chip with a program to support the 3# of boost.. as far as running the pulley without a chip i really don't know for sure i do know on the 99-00 the air fuels were in the 10.9 range the new 01's are much leaner. i might have a 01 here @ the shop i'll check the A/F before and after the pulley install without a chip and post the findings.....JL
David
#47
08-10-2001, 09:57 PM
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Sorry but i did get the 01 here but man o man! that o2 was in there! we knew what the A/F was before the extra 1.5# of boost he previously had the psp lower pulley on i knew it would lean it down around 1/2 point. so we left well enough alone. i'll have another 1 here in a few days we'll try it then.(can i say Never seize). 
..JL
..JL
#48
08-10-2001, 09:58 PM
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#49
08-10-2001, 10:09 PM
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08-10-2001, 10:19 PM
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#51
08-10-2001, 10:58 PM
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#53
08-14-2001, 07:25 PM
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went out yesterday.... JL
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08-14-2001, 09:44 PM
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08-14-2001, 10:09 PM
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08-14-2001, 10:15 PM
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#60
08-14-2001, 11:58 PM
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Mondo: i did get an 01 up here at the shop we put a chip in with the stock fuel maps it also had some different timing and such, and it leaned out to 13.5 A/F we then reprogramed it with a little more fuel and brought it to around 12.3-12.6.i do know from working on these trucks and checking many A/F's that not all these trucks respond quite exactly the same, however i now have came to the conclusion * Do Not Run This Pulley Without A Chip Tuned For The Extra 3-4 # Of Boost* JL