vortech v9 on stock ls1 dyno results...
05-18-2011, 06:33 PM
#22
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I have some pulleys i might let go, i have the v9 gtrim kit on my stock 2000 firebird last dyno i did i was at 550hp and the valve covers has never been off the car, stock bottom end, stock cam/ heads
05-18-2011, 10:17 PM
#23
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finally......
please excuse the dirty enginebay, my cars been a work in progress the last couple months. if you need a picture of anything in particular let me know.
please excuse the dirty enginebay, my cars been a work in progress the last couple months. if you need a picture of anything in particular let me know.
05-19-2011, 10:42 AM
#25
Holy ****... I found out why the #'s were so low. The blower belt was worn and slipping bad. I havent gotten it back to the dyno to see new #'s but its a world of diff from sotp feeling. I wonder if it needs retuned due to the belt slipping while on the dyno getting tuned???
too late right? Well take it easy.
05-19-2011, 10:58 AM
#26
well, damn it, that just means more money. I have logged it and havent seen any kr. I was wondering if I could get ahold of a wideband would this be enough along with watching for k/r to be safe or deffinitely get a retune? Vortech says the stock pulley combo should make 9lbs on stock engine but with the mods I have Should I be seeing more than 6lbs? Im getting a boost guage to see if the #'s are still 6 or higher BTW.
05-19-2011, 10:22 PM
#27
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I have the v-9 intercooled kit with a 2.62" pulley making 9 lbs of boost at 5000 ft above sea level. It put down 515 rwhp SAE on a stock LS1 with only a corsa cat-back and ptb. I was loosing boost at one point and replaced my Bosch by pass valve with a better one and boost was restored.
05-20-2011, 09:54 AM
#28
I have the v-9 intercooled kit with a 2.62" pulley making 9 lbs of boost at 5000 ft above sea level. It put down 515 rwhp SAE on a stock LS1 with only a corsa cat-back and ptb. I was loosing boost at one point and replaced my Bosch by pass valve with a better one and boost was restored.
05-20-2011, 06:49 PM
#31
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The stock 3.12" pulley is supposed to make 8-9 lbs at sea level. My 2.62" pulley actually makes 10 lbs at 5000ft but I have a boost limiter to bleed off the excess, and I get boost much sooner in the lower rpm's.
05-20-2011, 07:04 PM
#32
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I got ya. I talked to vortech and they said I should have about 8lbs with stock 3.19 pulley and that I must have a leak because Of the 6-7lbs Im getting. I also thought about belt slip but havent seen any residue on the pulley so???? Would that 2.75 pulley be what I need? I dont know what size pulley to get. Vortech said they dont have one to fit my blower. All or theirs has a different offset and I could machine some off the back. Can anyone confirm this? I just dont wanna buy a $100 pulley that dosent work.
05-21-2011, 09:59 AM
#35
stock 99 ls1 cam n springs. I cant justify changing cams on this high mile stocker and having something break and take out a cam thats worth what the entire engine is. I will probably change it to the ls6 or gt2-3 cam when another engine goes in. Hopefully that wont be anytime soon...
05-21-2011, 11:56 AM
#36
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stock 99 ls1 cam n springs. I cant justify changing cams on this high mile stocker and having something break and take out a cam thats worth what the entire engine is. I will probably change it to the ls6 or gt2-3 cam when another engine goes in. Hopefully that wont be anytime soon...
