What fuel pump or pumps should i get for a 1000BHP+ setup.

chrisp1

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Hi guys,

I have two walbro 255 inline pumps but Im getting pressure drop off and looking for a replacement. I have looked at a pair of Bosch 044 pumps and Aeromotive A1000 pump. but I was told that the A1000 overheats which isnt ideal if going for a long drive. I was also told about the Walbro 455 pump but I cant seem to find an inline version only in tank.

What do you guys use on 1000+ HP 2JZ setups? Im running with a T88-38GK at the moment but might upgrade to Garrett GT45 so could see 1100+BHP with my current setup and the new turbo so I would like a fuel system that will cope with the new turbo when it comes.

Any ideas would be much appreciated.

Thanks,

Chris
 

RacerXJ220

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I drove my Supra with an A1000 only, 13+ hours. Stopped only for gas, food. Roughly four hours running time, constant highway speed.

In 95+ degree traffic and it managed just fine. You will need two of them for 1000+rwhp, anyway. I'm going to use a single Magnafuel 4303, as I did before.

Walbro has a 700hp E85 pump, and running two of those would definitely be an upgrade to what you have, and keep it in the tank. Do not use a small fuel filter, get the longest 10 micron stainless element filter you can find. Don't overlook this part.

As for turbos, if you have access to a turbo rebuilder, Precision makes a 7675 that will make that power and more.

The T88-38GK is not as efficient in design as the newer GTX, GTW, Billet Borg Warners, and Precision turbos. V-band exhaust housing to manifold are not a bad way to go, but not required.

What transmission are you using?
 

chrisp1

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So if I will require 2 x a1000 pumps would it not be cheaper and just as effective using 2 x Bosch 044 pumps?

Using an r154 box with os Giken 3 plate clutch.
Thanks

Chris
 

RacerXJ220

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I would actually go with the upgraded E85 Walbro pumps. The Bosch pumps are good pumps, but they aren't flowing as much. You should be fine with two Bosch 044 pumps ,however.

Your R-154 may end up stripping 3rd gear during a good pull at 1,000+rwhp.

There are gear upgrades, available.
 

gsxr141

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I currently have the e-85 walbro 450 and fid 1000's. I did 550 wheel on a mustang dyno, but ran out of fuel up top. I too am looking into running second inline pump as the one isn't enough.
 

hvyman

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R154 will fail before you run out of fuel. Usually around 6-700ft lbs of torque the r154 fails.

That said 2 walbro 400's will out flow 044. But the 044 are prolly the more reliable pumps.
 

RacerXJ220

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I currently have the e-85 walbro 450 and fid 1000's. I did 550 wheel on a mustang dyno, but ran out of fuel up top. I too am looking into running second inline pump as the one isn't enough.
What kind of fuel filter are you using with the 450 pump?
 

gsxr141

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hate to admit, i still have the stock filter and line up to the front. i have it split and running two lines to the rail. i know this needs to be upgraded. i'd do two 450's, but i'm not sure they'll fit in the tank. i'm looking at options now, as the motor is going back together.
on another note..... i'm rebuilding the trans now with all the goodies. i'd be interested in an upgraded 3rd gear. where is this available from?
 

hvyman

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Stock fuel line won't support 1k hp.
 

gsxr141

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this I know. what I don't know isif I can do 2 450's in the tankwith 2lines going upfront or one big inline pump.......
 

hvyman

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Aeromotivr makes pumps bigger than the a1000.

A setup with a surge tank would be the most ideal.
 

gsxr141

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yeah, I thought about that.
I talked to sumeet today. he said that two 450's WOULD fit in the tank. since i'm dual feeding the rail already, i'll probably do that. probably have to modify the stock sending unit.
 

RacerXJ220

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Stock filter is not going to really flow what you want, either.

Look into the longer 10 micron units. With those pumps, a -6 single feed to the rail will definitely flow 1000rwhp worth of fuel. Many people run dual -6 feeds to help regulate the pressure differences, but if the rail is -8 or larger, it shouldn't be a problem.
 

VanSupra

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I was looking at the Fuelab Prodigy Pump which has a built in speed control and is rated up too 1800 efi hp. Not a bad price for what you get, if it's any good. There's also the Kenny Bell Boost a pump which I've heard about but not researched at all which is an inline pump. Here's a link to the Fuelab pump.

https://m.summitracing.com/parts/fue-42402-5
 

gsxr141

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well, my car is almost back together, but I still don't know what to do for fuel. I was hoping to go -6 right from the tank to a fuel lab filter, then split it into 2 feeds in the rail.
I don't think that will get me past 600 on e85. I talked to a reputable shop owner today and he said two 255's would be enough, but from everything I've read here, that's not the case.
maybe i'll just run pump gas and a meth kit. pretty sure my fuel system will easily support that.
any suggestions?????
 

RacerXJ220

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Make the single feed a -8AN, and you'll be fine. You're still planning on 1000whp, eventually?

Guys are making 700whp on a single 485 pump, e85.

The fuel filter should be the long one, not the short Aeromotive style.

I wrote stuff before, but lost the context of your intent. Late night...
 
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