Mazda Rotary Club

General => General Technical => Anything Engine/Performance/Tuning related => Topic started by: Fats on November 12, 2006, 07:26:11 PM

Title: Bosch 040 or R33 GTR fuel pump
Post by: Fats on November 12, 2006, 07:26:11 PM
Stuck between the two, i\'ll be running standard turbo\'s but with full exhaust, front mount, 850\'s primary and secondary, power FC, boost control ect...., What you lot recomend?
Title: Bosch 040 or R33 GTR fuel pump
Post by: allstaruk on November 12, 2006, 07:27:47 PM
Apexi bnr33 is the way to go but its not cheep,
Title: Bosch 040 or R33 GTR fuel pump
Post by: ScuttleRX on November 12, 2006, 07:30:42 PM
The Supra TT pump if well worth consideration, especially on a twin turbo application, especially if your planning on uprating the stock wiring aswell as it would perform even better.

Bosch is a good pump but has issues when you have 1/4 tank of fuel or less, so you need a swirl pot set-up ideally, also meant to be a bit noisy.

Apexi pump is meant to be almost drop in replacement, and provides a lot of fuelling, but also is the priciest option of the three.

Im gonna go either Apexi or Supra....
Title: Bosch 040 or R33 GTR fuel pump
Post by: iaint on November 12, 2006, 08:50:05 PM
Quote from: allstarukApexi bnr33 is the way to go but its not cheep,

Ended up with one of these and it really does the job.  Seems pretty happy on 1/4 tank which is not always the case with the bosch.  A swirl pot is a possibly solution though.
Title: Bosch 040 or R33 GTR fuel pump
Post by: kermit on November 12, 2006, 09:13:47 PM
Im going Apexi GTR fuel pump too.  Its not cheap, but it does the job.
Title: Bosch 040 or R33 GTR fuel pump
Post by: Ed_RX7 on November 12, 2006, 09:20:44 PM
i concur...ive got the apexi...its the one!!!
Title: Bosch 040 or R33 GTR fuel pump
Post by: gsb876 on November 12, 2006, 09:29:27 PM
BNR33 fuel pump is sufficent .................... damn sound like a Borg person :eek:
Title: Bosch 040 or R33 GTR fuel pump
Post by: gmogle on November 12, 2006, 10:30:15 PM
I have the same setup as you bar the FMIC, I have the Greddy SMIC and mine produces enough fuel and I havent needed to upgrade.

It doesnt run lean and provides far too much fuel at idle lol (well it hasnt being finished mapped yet).
Title: Bosch 040 or R33 GTR fuel pump
Post by: iaint on November 12, 2006, 10:41:14 PM
Quote from: gsb876BNR33 fuel pump is sufficent .................... damn sound like a Borg person :eek:

Yeah but you don\'t look Swedish!
Title: Bosch 040 or R33 GTR fuel pump
Post by: allstaruk on November 12, 2006, 10:49:49 PM
The apexi is prob the best as a i said, I\'m going for the supra pump however as I just don\'t have the cash, the apexi and supra pump work with any amount of fuel the bosh ones struggle with under a quater tank, don\'t even bother with walbro.

A
Title: Bosch 040 or R33 GTR fuel pump
Post by: Bulla on November 13, 2006, 12:44:56 PM
Sorry for the thread hijack but though it was relevant.

Is the Apexi pump a drop in replacement ?

My injectors are maxed out at the moment running 330bhp on standard twins. Am I gonna need a remap to tell the pump to push harder ?

Bulla
Title: Bosch 040 or R33 GTR fuel pump
Post by: DRAGON on November 13, 2006, 12:50:30 PM
We have supplied and installed lots and lots of Bosch 044s and for £150, i see no reason to buy anything else. We run three on the drag car, and they have been perfect.
Title: Bosch 040 or R33 GTR fuel pump
Post by: Fats on November 13, 2006, 05:18:30 PM
Thank\'s for the replies lads, i thought the 040 pump was a in tank pump and the 044 was an external pump with swirl pot???
Title: Bosch 040 or R33 GTR fuel pump
Post by: Fats on November 13, 2006, 05:19:09 PM
Thank\'s for the replies lads, i thought the 040 pump was a in tank pump and the 044 was an external pump fitted with a swirl pot???
Title: Bosch 040 or R33 GTR fuel pump
Post by: memski on November 13, 2006, 07:47:40 PM
I\'ve got an 044 in tank supplied by Ross, no problems at a quarter of tank, but I am still running her in so no wot action for a while :D
Title: Bosch 040 or R33 GTR fuel pump
Post by: Tintin on November 13, 2006, 08:43:23 PM
This is something I gotta look at getting soon , once I\'ve finished running in I\'m looking at putting 1600 secondries on so will need a better pump

Whats so bad about the walbro ???