walbro or nipodenso?
#1
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walbro or nipodenso?
hey guys im about to buy a new fuel pump but havnt decide which one walbro or nipodenso. Ive been told that intanks fuel pumps can hold up to 400whp more than that inline fuel pump is needed. 400 whp is my goal at this time im trying to find out which 1 would perform better. what ya think?
#3
Original Gangster/Rotary!
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I highly recommend the Nippondenso Competition pump that www.rx7.com sells.... scroll down to the 7th picture:
http://www.rx7.com/store/rx7/fdfuel.html
http://www.rx7.com/store/rx7/fdfuel.html
#4
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what is special about the RP pump - how do they increase performance over a regular denso pump?
I don't doubt it flows more just wondering how they got there. Its not like RP actually makes the pump.
I don't doubt it flows more just wondering how they got there. Its not like RP actually makes the pump.
#5
Sir Braps A lot
go with the Denso you wont regret it. as Rich pointed out that pump may be better suited to your needs its always better to be able to take fuel out of a map than pushing the injectors to their max duty.
#7
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sorry to try to make a sale but it seems relative considering the topic. I have two rp competition fuel pumps (nippon denso) supra pumps that I'm selling as well as a bracket system and all the plumbing. pretty much a drop in system for around 600whp
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#9
Eats, Sleeps, Dreams Rotary
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Supra pump here... More than enough fuel for the power I'm currently making.
I had a Walbro before and had no issues. However, when I was building my car I was talking to my tuner and he totally discouraged the use of a Walbro. He's been in the game for 20+ years and talked about how much they failed.
I had a Walbro before and had no issues. However, when I was building my car I was talking to my tuner and he totally discouraged the use of a Walbro. He's been in the game for 20+ years and talked about how much they failed.
#11
Original Gangster/Rotary!
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https://www.rx7club.com/3rd-gen-archives-73/some-fuel-system-ramblings-578521/
Supra pump here... More than enough fuel for the power I'm currently making.
I had a Walbro before and had no issues. However, when I was building my car I was talking to my tuner and he totally discouraged the use of a Walbro. He's been in the game for 20+ years and talked about how much they failed.
I had a Walbro before and had no issues. However, when I was building my car I was talking to my tuner and he totally discouraged the use of a Walbro. He's been in the game for 20+ years and talked about how much they failed.
#14
Original Gangster/Rotary!
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This isn't the FS section guys, take this kind of stuff to PMs.
#16
In the Garage
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OP - two more points of interest. No matter what pump you go with, look into using high pressure fuel injection line to connect the top of the pump to the feed line using clamps. It will create a more reliable fuel reliable/bullet proof fuel delivery to the feed lines. Also, you should (if you have not done so already) reference the fuel pump rewire that can be easily found in this section of the forum.
#18
Polishing Fiend
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Do NOT use fuel injection line. You MUST use high pressure hose suitable for *SUBMERSION* in fuel. The outer jacket of regular high pressure fuel hose will deteriorate, swell, and fail very quickly resulting in low to no fuel pressure and kablammo...no engine.
Read: http://www.reganrotaryracing.com/fddualfuelpumps.htm
Regards,
crispy
#21
10-8-10
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I highly recommend the Nippondenso Competition pump that www.rx7.com sells.... scroll down to the 7th picture:
http://www.rx7.com/store/rx7/fdfuel.html
http://www.rx7.com/store/rx7/fdfuel.html
#22
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looks like the bracket is spoken for but I have two fuel pumps still for sale one is brand new just out of the box and the other has about 2k miles on it all with shell 93 octane. If someone is interested just pm me so we dont **** of the mods by dealing in this thread.
#24
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The more your fuel that your pump pushes the more stable the fuel pressure. When the pressure drops off at higher rpm's under load the pump is unable to supply enough fuel to keep the lines pressureized. as far as the factory configuration fd's have a pump that has variable current based on the fuel pressure needed. most people just install a more powerful pump/s and run them at 100% all the time to ensure the fuel pressure is always high enough despite the injector's try to leak all of the fuel out of the lines.
#25
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I highly recommend the Nippondenso Competition pump that RX7.COM Performance and Repair Parts for RX-7 and RX-8 sells.... scroll down to the 7th picture:
RX7.COM | FD Fuel System
RX7.COM | FD Fuel System