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Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars |
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#1 |
Zilvia Member
![]() Join Date: Mar 2009
Location: charlotte
Age: 37
Posts: 213
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Stock Sr's Run 11 Psi from the Factory.....
Also i Though U place the EGT sensor on to the Manifold before the Turbo? like about 2 to 3 inches from the head on the 3rd or 4th runner You have a tomei Manifold put a Bung on that u should get a better reading |
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#2 | |
Zilvia Addict
![]() Join Date: Mar 2007
Location: San Francisco
Age: 38
Posts: 756
Trader Rating: (17)
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Quote:
i know on the manifold would give more accurate reading, but really don't want to make a bung on the tomei... ![]() any thoughts on the gauge readings? |
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#4 |
Zilvia Member
![]() Join Date: Mar 2009
Location: charlotte
Age: 37
Posts: 213
Trader Rating: (3)
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He was talking About PSI when he was on the Highway hes over 10 psi (Sr from the Factory is at 11 Do your Fucken Research) and hes at 1500 THATs FUCKEN hott the placement of the EGT sensor can have a big effect all i can say is the Right way would to put in on ur Manifold bro also Check Ur Timing
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#5 | |
Zilvia Addict
![]() Join Date: Mar 2007
Location: San Francisco
Age: 38
Posts: 756
Trader Rating: (17)
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Quote:
stock sr t25/t28 does run 7psi without mods, but given the factory boost solenoids are still hooked up, it would go up to 11psi depending on the rpm. It could be another topic for this, but it is not the matter here anyways. I use hks actuator and it holds steady 14psi under WOT. And the egt shows 1500 deg F only at 14psi. When I'm at half throttle (around 11psi), the egt would be around 1400 deg F. And under no boost, cruising at 70mph all motor, the egt is at 1200 deg F. Any ideas? |
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#6 |
Post Whore!
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OP, glad you answered most of your own questions. In my personal opinion, I'd back down the psi levels until you get a tune to make it safe..
That's right the wastegate does pop off at 7psi, the boost solenoid, not the restrictor allows the boost to creep to 11. That is not 11psi all the time, nor the stock pressure. Therefore, the factory boost setting you'll see is 7psi on 99% of STOCK swaps.
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