safe boost level
I want to know what is a safe boost level to run on my car. right now i have a street ported s4 block with a bnr stage 2 s5 turbo with stock top mount. I'm running a rtek1.8 with 750cc primary and secondary and running a turbo smart eboost street ebc.
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I wouldnt run no more than ten with stock top mount anything higher than that i would figure would heat souck like crazy
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get a wideband and know for sure. We can only guess.
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a SAFE boost level is 0.
like the others said, we don't know how lean your car runs at different boost levels. get a wideband. |
I have a wideband. What would be a safe afr to go after in boost.
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http://fc3spro.com/TECH/FM2W/power.htm
i dont know how many times i post this i wish people would search or do some reading....ted is the man and this info is the bible for buildiing a good reliable car |
I have the same setup as you, minues the S4 block and bnr turbo lol, I did also run a 1.8 but switched to a 2.1 when it came out for the S5 in January.
With a BNR stage 2 many people run 12 psi on a frontmount, which I would consider conservative, but with your Rtek 1.8, running 10psi is a safe boost level. Most important thing about increasing boost is timing, and fuel. Since you have a wideband already, only way of adjusting fuel is with a safc. The 1.8 rtek does a degree for every psi above 8 over stock if I remember. With that in mind, 10 psi on a stage 2 BNr should be a safe spot. If you want 12+ and be safe, I recommend larger injectors, larger intercooler and a way to tune the timing and fuel. You should try a Rtek 2.1 if you dont want to spend money on installing a standalone. A stock topmount with the stock turbo at 12 psi is already heat soaking the intercooler to its max, 12 psi on a turbo that pushes more air will be dangerous. |
I got a stage 3 with YOUR set up.
I am at 8 lbs..I think!..(all I am doing is HOLDING on when it kicks in~!) |
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