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Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars


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Old 10-23-2012, 05:27 PM   #1
Almasxxx
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i need help please fast reply Stock Sr20det turbo max psi

Hi
My car setup head valve etc brain crower and supertech. engine cp acl brain crower i beam and i have turbo manifold fmic tial wastegate 850 cc injector and vi-pec ecu i remove maf. I ise Map my question what can i use max psi sr20det stock turbo why ask have a problem to i buy turbo but sending wrong and i send back but have a race 5 days latter and i try to my stock turbo is good condition. Is it possible use 21 psi or 23 psi or 19 thanks for help i remap my car today
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Old 10-23-2012, 05:30 PM   #2
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no toooo many psi's
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Old 10-23-2012, 05:32 PM   #3
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depends on which stock turbo you have.....(correct me if im wrong) i think the s13 t25 maxes out at 14psi...where the s15 turbo maxes out at about 18psi......
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Old 10-23-2012, 05:41 PM   #4
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My car is black top sr20det s14a (kouki) i think use 1.3 1.5 i read it but im not sure please more reply
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Old 10-23-2012, 05:46 PM   #5
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Sounds like you should weigh your priorities bud. One race with a last minute setup/tune, or wait it out and do things the right way? Is this an end of the year race or a money run? I would personally just wait and do things proper for the sake of my investment.

If you can't wait, I wouldn't push a t28 of any form past 16-18psi. Your most likely out of efficiency at that psi anyways.
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Old 10-23-2012, 06:37 PM   #6
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Hmm nearly 1.3 bar think but i use this turbo 30 day after remove no problem but i need take 350 bhp my setup thats it i take 300 bhp before 1 bar stock turbo with this setup but i need do bull eye to max psi t28 stock turbo
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Old 10-23-2012, 07:31 PM   #7
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just unplug the fucking wastegate line and go for it.

what could go wrong? air isnt stronger than bolts!
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Old 10-26-2012, 01:27 PM   #8
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Quote:
Originally Posted by Almasxxx View Post
Hmm nearly 1.3 bar think but i use this turbo 30 day after remove no problem but i need take 350 bhp my setup thats it i take 300 bhp before 1 bar stock turbo with this setup but i need do bull eye to max psi t28 stock turbo
Don't run more than 1.1 bar on stock turbo, stock t28.

I'll put together a map for you and then you can run the higher boost. I'm guessing you converted to MAP sensor by using a Power FC? Haltech?

PM me I might be able to help you.
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Old 10-26-2012, 03:04 PM   #9
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14-15psi is max for your turbo dude... Wait it out, not worth blowing your motor for a quick race.
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Old 10-26-2012, 08:06 PM   #10
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Get an evo8/9 turbo.

30psi all day.
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