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safe sr20det boost operating level?

Old Jul 21, 2004 | 08:41 PM
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Default safe sr20det boost operating level?

i have a pulsar gti-r swap in my car and was wondering what is a safe high boost level for this motor. 444cc injectors, small front mount, 93 octane.
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Old Jul 21, 2004 | 09:13 PM
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Safe on modified cars depends on the strength of every nut and bolt on the enigine. I've seen people run 10psi all day long and not really ever have problems. Those were strong engines with about 35k miles though.
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Old Jul 21, 2004 | 09:42 PM
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isn't stock boost on the gti-r 10 psi or close to it?
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Old Jul 21, 2004 | 10:52 PM
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17psi.
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Old Jul 21, 2004 | 11:03 PM
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and to answer your question, your transmission is going to break before your motor will
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Old Jul 22, 2004 | 01:55 AM
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Originally posted by saggleman
and to answer your question, your transmission is going to break before your motor will
ding ding ding! we have a winner. you could easliy see atleast 12 psi on pump gas. i did it on my 9.5:1cr sr. Hell i was actually running `14.5psi when it started to show a slight sign of detonation. You could probably see 15psi safely. Id stick it at around 13psi if I where you for pump gas and a few pounds higher for race gas. good luck!
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Old Jul 22, 2004 | 08:29 AM
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thanks i really appreciate the help my compression ratio is 8.3:1 though if i am correct that is the right ratio on a pulsar gti-r.
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there are two cars on the street "Rice" and "Nice". "Rice" is big wheels body kits and dirt slow cars. "nice" is a clean lip kit , nothing bigger than a 16"wheel on it. built motor and clean everything. "Its so nice not to be rice"
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Old Jul 22, 2004 | 04:13 PM
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Originally posted by guderacinghatch
thanks i really appreciate the help my compression ratio is 8.3:1 though if i am correct that is the right ratio on a pulsar gti-r.
yes you have 8.3:1 enjoy your boost
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