apexi bnr33 fuel pump...?
#1
apexi bnr33 fuel pump...?
im looking to change my fp to get to the 500whp mark. i have a supra tt pump now but i think that will limit me when i tune for race fuel. i am wonder if anyone has used the apexi bnr33 pump. they say it is good for 600whp but i want some proof before i spend the $400 for it. if anyone has experience with one of them post up and let me know how it worked out for you.
#2
Original Gangster/Rotary!
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It's handled 19 psi on my 500R with no problems. I don't know if it'll handle 600 rwhp due to the internal diverter valve limiting the amount of fuel (and thus boost) pressure.
Read more here:
https://www.rx7club.com/3rd-gen-archives-73/some-fuel-system-ramblings-578521/
Read more here:
https://www.rx7club.com/3rd-gen-archives-73/some-fuel-system-ramblings-578521/
#3
Big Daddy!!!
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I'm having the same urges. I need to read up more on this gtr fuel pump.
Goodfellafd3s how much power did you make on your 500r at 19psi? Also what is your fuel setup interms of injectors and what was your duty cycle at that boost?
R.K.
Goodfellafd3s how much power did you make on your 500r at 19psi? Also what is your fuel setup interms of injectors and what was your duty cycle at that boost?
R.K.
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It's handled 19 psi on my 500R with no problems. I don't know if it'll handle 600 rwhp due to the internal diverter valve limiting the amount of fuel (and thus boost) pressure.
Read more here:
https://www.rx7club.com/showthread.php?t=578521
Read more here:
https://www.rx7club.com/showthread.php?t=578521
Who tuned your car for you finally?
What did you make on the dyno again? 460?
John
#6
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#7
Original Gangster/Rotary!
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RK, I'm running top feed 870s and 1680s, kg ultimate setup with s/s engine bay lines and aeromotive fpr. stock lines otherwise, stock relocated filter. Peak IDC, I honestly can't remember exact numbers. It's pretty high (mid to low 90s at 15 psi!), but my car is running very rich due to not being fine tuned.
Recently ErnieT posted that he ran the apexi bnr fuel pump on his old red car at 25 psi with no problems, which is good news for those running this pump.
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#11
Need more sleep
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My bnr33 was run at 14 volts and it was LOUD, if you have a loud exhaust or solid diff bushings it will be drowned out and you'll never hear the pump.
I switched to a RP intank pump and even at 14 volts it's silent. Good enough for 524 rwhp at 11.x AFR on my sprayed LS1. When I push for 600 rwhp I'll put a boost-a-pump on it if it's needed.
I switched to a RP intank pump and even at 14 volts it's silent. Good enough for 524 rwhp at 11.x AFR on my sprayed LS1. When I push for 600 rwhp I'll put a boost-a-pump on it if it's needed.
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The reason why I ask is because I want to run the gt35r up to 18-20 psi on 850cc primaries and 1600cc secondaries with the base pressure set at 40psi. People are saying that the pump is only good for 75psi of pressure (40psi base+15psi pressure loss through the lines=55psi so the max boost I can run is 20psi?).
Any insite would be great.
R.K.
Any insite would be great.
R.K.
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#19
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The pump has a relief valve that doesn't let it go above 75 psi.
I tested my setup to see the loss, so I wired my fuel pump at the diagnostic plug and turned my FPR to the highest setting. It would not go over about 61-62 psi.
So, yea the number is fairly accurate.
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