How much boost can it handle?
02-01-2007, 05:11 PM
#1
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Car: 89 Firebird
Engine: 5.7 TPI
Transmission: 5 speed
Axle/Gears: 3.73
How much boost can it handle?
My buddy has a 5.0 tbi and he looking to supercharge. I was just wondering how much boost can it handle without damaging the motor. Thanks.
02-03-2007, 10:22 PM
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Car: 89 TA
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 10 bolt 3.08
is the engine stock? what CR is it running? is he looking into roots or centrifugal?
if he's going oldy-roots style, check this out- http://www.holley.com/data/Catalogs/Superchargers.pdf . it's some good reading that might answer quite a few of your questions, and some you might not have known to ask.
if he's looking into centrifugal, check out http://www.procharger.com/faq.shtml .
I'd research this a bit more before you do anything definite yet as there are so many variables, but a stock LO3 should safely be able to take 3-4 psi roots style (switching to premium fuel would be a good idea, and keep an eye on your timing).
it could take a couple more psi out of a centrifugal supercharger but 305 tbi's don't tend to do well in the areas where centrifugal's are meant to shine (upper rpms). I doubt you wanna hear this but it's always best to read up on stuff first.
P.S.- also at Holley.com , you can check out the Lunati catalog to read up on cam basics, just for fun
if he's going oldy-roots style, check this out- http://www.holley.com/data/Catalogs/Superchargers.pdf . it's some good reading that might answer quite a few of your questions, and some you might not have known to ask.
if he's looking into centrifugal, check out http://www.procharger.com/faq.shtml .
I'd research this a bit more before you do anything definite yet as there are so many variables, but a stock LO3 should safely be able to take 3-4 psi roots style (switching to premium fuel would be a good idea, and keep an eye on your timing).
it could take a couple more psi out of a centrifugal supercharger but 305 tbi's don't tend to do well in the areas where centrifugal's are meant to shine (upper rpms). I doubt you wanna hear this but it's always best to read up on stuff first.
P.S.- also at Holley.com , you can check out the Lunati catalog to read up on cam basics, just for fun
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