How much boost can stock 4.0 v8's handle?
#1
How much boost can stock 4.0 v8's handle?
this is for future reference.
I was just wondering how much boost our cars can handle safely for turbo's, not superchargers. i still want somewhat good gas mileage. I have a 92 sc400. just would like to know.
Peace out
I was just wondering how much boost our cars can handle safely for turbo's, not superchargers. i still want somewhat good gas mileage. I have a 92 sc400. just would like to know.
Peace out
#2
Anyway this engine is "said" to handle 15lbs before the pistons burn. I cannot say that that is reliable figure, so try it and see. You can get engines cheap.
#4
Lexus Champion
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read:
"maximum boost"- corky bell
"supercharged"- corky bell
"engineer to win"...actually all the books of that series. there is about 4 or 5 i think. read pretty much everything written by carroll smith. my boss was friends with him. great guy.
"forced induction performance tuning"- A graham bell
read at least half those book.
#6
Lexus Test Driver
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15psi would really be pushing it on the stock motor, the head gaskets at least. Not to mention your transmission would likely die after a few good boost runs.
That being said, I boost daily at about 9psi. I've seen as much as 12psi without the intercooler but never really tried it for daily driving.
The V8 is NOT easy to turbo, make sure you know what you are getting into before you start.
KC
That being said, I boost daily at about 9psi. I've seen as much as 12psi without the intercooler but never really tried it for daily driving.
The V8 is NOT easy to turbo, make sure you know what you are getting into before you start.
KC
#7
Lexus Test Driver
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As far as Gas mileage with a supercharger its really not bad. Infact if you drive normal the change is barely if any noticiable. 6-7 pounds boost with no fuel upgrades makes for a really fun simple system that still passes the pumps.
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