I was thinking of upgrading my pulley to a 12psi is it a good idea? Lol my motor has stock internal and I dnt want to blow anything, I'm pushing 555-560 right now with the 9psi and jlt cold air. Let me know what u all think
Upgrading boost on roush Whippel
- Thread starter tcroush23
- Start date
I would go BAP and bigger injectors. If your gonna do that.
"bap"???
"Boost a pump". A fuel pump voltage booster.
12 psi from a PD blower could prove to be catastrophic on the cheap cast pistons.
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Im running about 11-12 psi on my tvs with a 79mm pulley,jlt, bap,and 47lb injectors but i also have excepted the fact its a ticking time bomb.....
So if you wana be safe stay where your at
So if you wana be safe stay where your at
So, I guess I shouldn't put my 79mm pulley on?
On my car with factory air box we went from the 82mm to the 79mm and it only made a couple more hp but the tq did go up.We know why. First off, the factory intake box gets restrictive at this boost level. 2nd more boost and 93 octane came less timing advance which kinda defeats the purpose to running more boost. So for a street car with limited octane stick with the 82mm. The 79 is good for the track when u can splash it with race fuel. Also with more RPM the blower turns the more heat it makes. On a side note I like the cool air that the factory air box delivers for the street aspecially here in Fl.
This combo will keep your motor safe with the right tune and u won't over boost.
This combo will keep your motor safe with the right tune and u won't over boost.
Hmm
Why don't u lose the 79mm or the JLT then you'll be safe? It's only worth about 20-30 rwhp more the way your running. JLT gives 1-2psi and the pulley is good for about 1psi.
Why don't u lose the 79mm or the JLT then you'll be safe? It's only worth about 20-30 rwhp more the way your running. JLT gives 1-2psi and the pulley is good for about 1psi.
Tough call... There is still not a whole lot of info out there on now many miles we can go at high HP. Seems like a high percentage of people are holding together just fine at 600+ hp and more. The motor just hasn't been out long enough to know what it will really take and for how long.
As long as you run decent fuel, respectable timing and don't have detonation (which the computer wont allow you to have anyway), I suspect our motors are going to last alot longer than people expect.
As long as you run decent fuel, respectable timing and don't have detonation (which the computer wont allow you to have anyway), I suspect our motors are going to last alot longer than people expect.
Im going to rebuild anyway im not saying its unsafe but there is a line where you need to realize that failure may result ive just accepted it
Thanks everyone... dyno is thursday... currently running VMP email tune. If i don't put down more then mid 500's then the 79mm will go on along with cobrajet TB.
In for results as mine hasn't been on the dyno.
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