Is 12psi safe for my setup?

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kooltacos
Posts: 96
Joined: Tue Nov 11, 2008 4:36 am

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Hi guys I have searched this but I can't find a definitive answer? I am putting together a 95 240sx with a stock redtop. The car has a fmic and full exhaust. I want to use a MBC to get the boost around 10-12 psi. Will this be safe to run with out adding more fuel via injectors or tune? Short on dough after the swap or I'd get a good wideband. thanks


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Justin35ll
Posts: 1421
Joined: Fri Oct 17, 2008 6:57 pm
Car: s13 coupe sr20det

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Get the car running first and drive it at 7 and make sure everythings good. Then yes you can turn the boost up to 10 - 12.I wouldn't go much higher though.The t25 doens't flow much past 14psi so I've heard.

I ran mine at 14psi with stock tune and had no issues.

But you will shorten the life of the turbo greatly

kooltacos
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Joined: Tue Nov 11, 2008 4:36 am

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wow what did your afr's look like at 14 psi?

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DuckyD
Posts: 504
Joined: Thu Feb 16, 2006 6:27 am
Car: 1995 240SX
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You'll be fine. Like Justin said, start out on stock boost and everything is cool throw on that MBC and have fun.

7o7drft240sx
Posts: 81
Joined: Tue Jul 01, 2008 8:34 pm

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hey sorry to thread jack but..i was wondering if its fine to run 12 psi with the ngk bkr6eix? noob question..sorry..

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PyR0NiAk
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Car: S13 SR W/ T2 GT3071R .86AR, JWT S4 Cams, 810cc Injectors,Z32 MAF, JWT tuned ECU 87mm 9:1 Compression CP pistons, Manley Rods
Location: Ohio
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It should be fine, but I'd still try and order some 7s. Not too expensive, and takes all of 10 minutes to change.

kooltacos
Posts: 96
Joined: Tue Nov 11, 2008 4:36 am

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thanks for the help guys

7o7drft240sx
Posts: 81
Joined: Tue Jul 01, 2008 8:34 pm

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PyR0NiAk wrote:It should be fine, but I'd still try and order some 7s. Not too expensive, and takes all of 10 minutes to change.
alright thanks a lot


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