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Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars |
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#1 |
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No BOV
So I just got my motor running right, and there is an event in 1 week.
I have a v-mount set up, with no Blow off Valve. its jsut a stock Redtop, stock turbo with basic bolt-ons. how good or bad is it to run no bov?? Also what is good oil pressure at idle? and pressure at full throttle? Thanks for any help. I hate starting new threads.
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#3 |
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No bov is fine on any boost.
So many of us have run without it for years - no problems. I run one now just because im a ricer.
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Yep.
T25's are cheap. Only reason I run one is Disco potato turbo's aren't that cheap. and I run like 20lbs. No BOV is awesomer though.
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wow, I remember gettina a boner from that Supra back in the day, and always wondered what BOV it had. LOL
thanks for the help everyone Now my second question. what is good oil pressure at idle?? and pressure at full throttle?
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BOV's are lame unless they are re-circulated. They sound soooooo effin annoying. They are also not 100% necessary, especially if you have a cheap ass t-25 or t-28.
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Oili pressure:
Approximate Discharge pressure : kPa (kg/cm^2, psi) Engine speed at idle more than 78(0.8,11) Engine speed at 3000 rpm 412-481 (4.2-4.9, 60-70) EDIT: that's for a stock KA btw, i don't know about SRs or with any modifications you've done.
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wow, I barely understand what the fuck it is you just posted. just lookin for some simple numbers people see on their gauges.
thanks for tryin to help though
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#16 |
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ok man i have a ka-t but might be same concept in normal terms. 18psi at idle when warm around 40psi when cruising. And as you get up in rpm's oil pressure gets higher.
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Quote:
sorry i just quoted the FSM. It says above 11psi at idle and 60-70 psi at 3000 rpm.
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#21 |
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awesome, im loving these responses. I feel like this whole aftermarket BOV thing is just some conspiracy to spend more money.
So now thats cleared up, can I get a few more responses to the oil press. question? what do you guys see at idle and full throttle? just wanna be safe as I start driving the car this weekend.
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#22 |
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It *theoretically* could *possibly* damage the turbo over time. In reality however your turbo will almost certainly take a shit for other reasons long before not having a BOV does it. If I had an expensive turbo I would run a BOV just to be safe, but with a t25 or 28.....whatever.
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