series 1 boost limit ?
#1
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series 1 boost limit ?
hey all im just wondering how much boost a s1 could handle on stock internal i think the highest ive heard of is about 17psi
#3
DINOSAURUS BOOSTUS
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This really depends. I think the motor can handle the pressure, but it will need to be tuned etc to work together.
Boost pressure though is a measurement of the excess pressure being read in the LIM. It'* actually not a true reading of power.
Boost pressure though is a measurement of the excess pressure being read in the LIM. It'* actually not a true reading of power.
#5
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If he'* pushing 17psi of boost he'* a idiot. pressure is heat, and heat is KR. Flow is far better. My engine is far more built then his and I'm doing a max of 13.8psi
#6
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To answer your question, 9 or 10 is about as high as your going to want to go. Getting up to around 14 and your at the limits of the gaskets. On a nearly stock engine I don't even suggest going as high as 10.
#7
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I think Wren was pushing 13psi in Greenzilla, but porting brought the number back down. I know PontiacJeff was probably pulling around 17psi on a series 2, but he also blew 2 headgaskets, which is no small feat in a 3800.
As was said, your goal is not to make more boost, your goal is to make more flow. Boost is just a measurement of how much airflow you don't have.
As was said, your goal is not to make more boost, your goal is to make more flow. Boost is just a measurement of how much airflow you don't have.
#8
DINOSAURUS BOOSTUS
Expert Gearhead
High boost numbers on a Series 1 also mean a lot of heat is being generated. The M62 used from 92-95 is very inefficient and creates a lot of heat.
FWIW on my old Bonne setup with stage 3 heads, headers, rockers on top of the heads and S1X camshaft with Gen V blower over a full sized intercooler, I was running a 2.9" pulley on the street. Near 6,000 rpm I'd see about 15psi. That pulley on a car w/o all those flow mods would probably push around 30psi. Again..that'* not a number you want to be high.
FWIW on my old Bonne setup with stage 3 heads, headers, rockers on top of the heads and S1X camshaft with Gen V blower over a full sized intercooler, I was running a 2.9" pulley on the street. Near 6,000 rpm I'd see about 15psi. That pulley on a car w/o all those flow mods would probably push around 30psi. Again..that'* not a number you want to be high.
#9
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I think Wren was pushing 13psi in Greenzilla, but porting brought the number back down. I know PontiacJeff was probably pulling around 17psi on a series 2, but he also blew 2 headgaskets, which is no small feat in a 3800.
As was said, your goal is not to make more boost, your goal is to make more flow. Boost is just a measurement of how much airflow you don't have.
As was said, your goal is not to make more boost, your goal is to make more flow. Boost is just a measurement of how much airflow you don't have.