i have a newbie question... why is it that people go with 5.3 vs LQ4's for boost... the 5.3 will hold better boost??
6.0 in stock form you cant lower the compression with a head swap. 5.3 w/ 6.0 heads you can get 8.6:1 compression. Also a smaller diameter piston will have more structural integrity and withstand more abuse. And they are DIRT CHEAP!! I see them all over complete for like $350. 6.0L's tend to go for a bit more. My 5.3L has taken some abuse, stock shortblock 15psi and a 50 shot of spray, 3 years and still running strong...and im not easy on stuff
__________________ 99 Transam - 5.3L w/ GT45 -10.76 @ 128 w/ 1.83 60ft and broke something.
99 Vette FRC - stock
72 Nova -New twin setup in the works. (former turbo 5.3)
got a little bit of tuning done... but i have some damn KR that i cant get rid of!
AFR/LAMBDA is damn close either dead on or a lil rich.... timing is dropped to almost nothing, and im still getting KR. The weird thing is its not consistant...
I think it may be false knock so im gonna get some octane booster and see if it goes away....
Its gonna be nasty! Boost is instant! I keep accidentally getting into boost! I cant wait till its tuned!
got a little bit of tuning done... but i have some damn KR that i cant get rid of!
AFR/LAMBDA is damn close either dead on or a lil rich.... timing is dropped to almost nothing, and im still getting KR. The weird thing is its not consistant...
I think it may be false knock so im gonna get some octane booster and see if it goes away....
Its gonna be nasty! Boost is instant! I keep accidentally getting into boost! I cant wait till its tuned!
You said you were running just a downpipe and no exhaust ? Could your KR be coming from that?
__________________ 99 Transam - 5.3L w/ GT45 -10.76 @ 128 w/ 1.83 60ft and broke something.
99 Vette FRC - stock
72 Nova -New twin setup in the works. (former turbo 5.3)
FWIW, i used two of those cheap 10" fans on my turbo setup, had them as pushers - worked fine as pushers. tried them as pullers - car would get super hot.
I am not going from LT1 to 5.3, and I will be using flex-a-lite fans this time around
Good job on the turn around time. They are calling for snow here to tonight. Good thing I got the big shop considering I havent even started on the next project yet. LOL.
Good job on the turn around time. They are calling for snow here to tonight. Good thing I got the big shop considering I havent even started on the next project yet. LOL.
Thanks.... ya we are supposed to get snow everyday till wednesday here, it came really fast this year.
Im so jelous i wish i had a shop, i really miss my garage! IF i had a shop it would never be empty and would always have some project going lol.
this weekend im gonna go to 11psi and hopefully around 12* timing! that should really wake it up! cuz its really actually kinda slow right now, or feels slow anyway, lol....
Great job. I wish i had half of the motivation you do. The sad part is I do have a small garage, but I do have a s10 getting a motor in the way hindering my progress/motivation.
I spent enough time being a driveway warrior my self so I feel ya. That just makes it even better to feel it run.
Glad to see my old turbo kit being used. Got tired of it sitting on the shelf hahaha. Im jealous that yours is together. I Still have to wait a little longer. And I probably will have to run the truck NA for a while. Turbo builds are not that bad... its swapping a new motor into an older vehicle, and not having a complete motor, is what kills the budget. God I think I spent a thousand dollars on bolts, and sensors
Get a good video of the BOV and exhaust please. I still wanna use the rfl on mine.
__________________ 97 rcss awaiting turbo lq4
04 c5 with intake.
Glad to see my old turbo kit being used. Got tired of it sitting on the shelf hahaha. Im jealous that yours is together. I Still have to wait a little longer. And I probably will have to run the truck NA for a while. Turbo builds are not that bad... its swapping a new motor into an older vehicle, and not having a complete motor, is what kills the budget. God I think I spent a thousand dollars on bolts, and sensors
Get a good video of the BOV and exhaust please. I still wanna use the rfl on mine.
Yep all those small things will break the bank....
You cant really hear the BOV to be honest.... the exhaust is LOUD! I will see if i can get a good video though....
I am currently running 14psi, 10*, 11.2afr.... its pretty quick im gonna have to save all winter for a tranny dont think its gonna hold on at this power level.
