What Intank Pump Will Deliver The Most Flow? Nismo?

[Ryan1200]

Didnt i get lucky stupidly left one fuse out supplying my twin nismo pumps and did several dyno pulls went about .5 ratio leaner. 430rwkw and no one way valves these pumps are pretty darn impressive..

[Deano 1]

26psi and 460rwkw on e85 twin nismo intanks no pump noise at all.. Very little change in spool from 98 octane + 30% tolulene to e85.

any info on the install for the twin Nismos, i put twin nismos in my car last week.

are yours wired to the battery? or are they just wired into the factory wiring?

how did u mount them in the tank?

cheers

[Ryan1200]

Iv installed them into a 33GTR so much easier than 32.

Posted a picture on GTRUK:

http://www.gtr.co.uk/forum/119259-rips-fuel-system.html

I used feed and return outlets on the plastic tank cap as twin feeds and added a speedflow bulk head fitting to the cap for the return line. Inside tank wiring i used the factory internal wiring for 1 pump but for the 2nd pump i added 2 posts to the cap with some 6mm stainless rod and nutted both sides. Feeding the pumps i used 2 relays feed directly from the battery.

[Piggaz]

Speedflow bulk head fitting. I'm assuming you just drill and tap the top plate. What size did you use?

[Ryan1200]

I used a -6 fitting so the closest drill bit to suit the fitting i guess. Did this probably 4 years ago so i couldnt say on specific sizes....

[Deano 1]

what did u mount the pumps to inside the tank? i did basicly the same thing with the big hose clamp, i clamped my pumps ethier side of the cradle. so my pick ups arnt inside the baffle thing in the bottom of the tank, but the picks are ether side of it, at the lowest point.

im in the middle of relocating my battery, once its in the boot ill run a similair setup to you with wiring..... ive just got a Y section atm in the tank joining the 2 pumps into 1 factory line, as im only running a factory rail atm.... but ive got a sard rail here and im considering running twin lines and puting one on each side of the rail... but see how i go.

[Ryan1200]

33GTR pumps just float at the bottom of the tank so no mounting besides the top factory bracket that hooks inside the tank.

[Deano 1]

lol crazy, so the pick ups just sit at the bottom of the tank flaping in the wind? no baffle kinda thingo like the 32?

[Deano 1]

you have a twin entry rail yea? one pump for each end?

[Ryan1200]

Cant move much down there its simliar to a surge tank i guess. Yep twin entry rail setup using the standard steel lines as my feeds and i ran one -6 braided the length of the car. So much nicer setup than the twin 044's surge tank crap i had in there at first.

[Marko R1]

usng the existing steel lines as your feed to the twin entry rail is what i did - nice & clean setup.

just run a return line under the car & its done.

dean - how much power are u supporting? if you look at the likes of GTRNUR & others on this site, there are guys cracking over 400awkw with the factory single entry rail. however, i also ran a twin entry rail on 405awkw for bling

[Deano 1]

ATM I'm only making 330rwkw, but Im making a 4inch exhuast and installing some id2ks going for around 400, it doesn't matter ATM anyway as a built motor will be going into this car shortly so I more as well set the fuel system up.

How did you mount your twin pumps in the tank???

[Marko R1]

i actually ran an in-boot surge tank with an 044 lift pump (because it is already in there, not required though) & 2 044s mounted on the surge tank.

my fuel used to get hot though & i always had fuel fumes in the cabin.

i wasnt happy with the fuel setup but it did its job

[Marko R1]

i'd like to see pics of setups where twin intank pumps have been mounted in preferably an r32gtr as well

[Deano 1]

I was Gunna take a pic of my setup, just to c what people think, but I'm to scared to stick a camera in the fuel tank and take a photo or put my phone near it to take it. Way to much fumes around, and the flash will most likly blow up my shed...... So Fark that

[WMDC35]

anyone wanting to do o44 intank, this is mine on r33 style cradle with one way valve, pretty straight forward, all the bosch pumps are fully sealed

Edited May 11, 2012 by WMDC35

[Marko R1]

I was Gunna take a pic of my setup, just to c what people think, but I'm to scared to stick a camera in the fuel tank and take a photo or put my phone near it to take it. Way to much fumes around, and the flash will most likly blow up my shed...... So Fark that

Haha that is an awesome post

We should write to mythbusters to see if this is the case

[Deano 1]

Yea lol not to keen on trying it myself.

It's hard with the r32 tank, as there's no way you can fit both pumps into the cradle in the bottom of the tank. So I spose the way I've got it, is really the only way you can do it, unless you mount the pumps to lid and hang the pick ups down.....

[Marko R1]

Dean - have u seen these?

http://powertune.com.au/products/by-brand/powertune.html

Not sure what pumps are being used here though? Very nice items but not cheap...

[Deano 1]

Yea I seen em. For the money if rather make my own setup using Nismo pumps. But yea they look the goods