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Old 08-09-2009, 02:54 PM   #1
old skoo
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How much psi

whats up guys. i was planning on throwing a blower on my stock s52 and i was wondering how much psi can i run stock without blowing it ?
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Old 08-09-2009, 05:20 PM   #2
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I am going to guess 7psi with the right fuel tuning. (its all in the tuning)
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Old 08-09-2009, 07:59 PM   #3
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ive heard anything over 6psi, and your asking for trouble. yes tuning makes a huge difference but even then your reducing te engines reliability by quite a bit.

And before some guys on here with charged s52's come blasting about how theyve had their blown for years. Yes it also depends on how you drive it, if your a conservative driver that likes to play around once in a while, your ok. But if you are constantly beating on it, youll do some damage. Id recommend at least getting a commetic head gasket and arp head studs!

just my 2cents

Jay
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Old 08-16-2009, 09:38 PM   #4
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hey thanks for the info

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Originally Posted by spoony_prelude View Post
ive heard anything over 6psi, and your asking for trouble. yes tuning makes a huge difference but even then your reducing te engines reliability by quite a bit.

And before some guys on here with charged s52's come blasting about how theyve had their blown for years. Yes it also depends on how you drive it, if your a conservative driver that likes to play around once in a while, your ok. But if you are constantly beating on it, youll do some damage. Id recommend at least getting a commetic head gasket and arp head studs!

just my 2cents

Jay
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Old 08-12-2009, 09:16 AM   #5
black bnr32
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I'm running 11.5 psi.
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Old 08-16-2009, 09:40 PM   #6
old skoo
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what's done to your motor

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I'm running 11.5 psi.
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Old 08-16-2009, 11:55 PM   #7
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nothing...hasn't been opened at all
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Old 08-18-2009, 08:22 AM   #8
old skoo
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Wow ! Lol what are you running to the wheels and what kinda blower you running ? If you don't mind me asking

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nothing...hasn't been opened at all
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Old 08-17-2009, 01:10 AM   #9
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How about M52?
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Old 08-18-2009, 09:20 AM   #10
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~375whp on a vortech V1. Lots of guys do it btw...see bimmerforums! Obviously good tuning and aftercooling is key.
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Old 08-18-2009, 10:48 AM   #11
everlast
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BlownM3 on here has been blown for a while, runs higher PSI than the setup was designed, has it tuned for each change he makes and drives the living piss out of it. In fact, he twisted a driveshaft last weekend..

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This is what happens when your car hooks up at the drag strip
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Old 08-18-2009, 10:41 PM   #12
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Im running 18psi with a Gt35r apr headstuds and an mls .140
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Old 08-18-2009, 11:36 PM   #13
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Im running 18psi with a Gt35r apr headstuds and an mls .140
Wtf? Out of nowhere? Sweet! You gotta be @ 450+ RWHP. Pics? Stock tune?
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Old 08-18-2009, 11:46 PM   #14
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Wtf? Out of nowhere? Sweet! You gotta be @ 450+ RWHP. Pics? Stock tune?
I only ran it for a few days, its way too much for the streets. I turned it back down to 12psi for daily. I mean wheel spin in 3rd ftw!

At 18psi i would say i was very close to 500rwhp.

Im on a custom tune, no pics of yet.

Its an
m52
apr2000
head studs
mls head gasket
spa manifold
gt35r
550cc injectors
custom charge piping/downpipe exhaust

i did all the work my self.
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Old 08-21-2009, 12:22 AM   #15
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Quote:
Originally Posted by ///tyron View Post
I only ran it for a few days, its way too much for the streets. I turned it back down to 12psi for daily. I mean wheel spin in 3rd ftw!

At 18psi i would say i was very close to 500rwhp.

Im on a custom tune, no pics of yet.

Its an
m52
apr2000
head studs
mls head gasket
spa manifold
gt35r
550cc injectors
custom charge piping/downpipe exhaust

i did all the work my self.
Sounds good, looks like all the GTA F/I guys are just hiding...Im one of em

I'll hopefully post something worth viewing soon.
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