Upgrading GTST fuel pump

[raz0r$harP.UK]

Hi,

Thinking of upgrading the fuel pumps in both our GTSTs. Currently the 040 is looking to be the replacement because of the price and ease of installation. Just waneed to know if they are much louder (as compared to a GTR pump), or if anyone's had any problems starting their car after installation..

I remember reading on here a while ago that someone had to crank their car several times before it started after installing an 040 - or was that a one off.

Also, as a replacement for a car pushing 300kw, would the 040 flow enough?

Cheers!

[wolverine]

i used a 984 (i think these are used in porsche turbos ?!?). they are just smaller than the 044 lengthways, and should flow more than the 040 from the bosch pump link (driftkng has it on his for pumps 4 sale ad).

if u want the most headroom then 044 is the way to go.

the 984 makes some noise compared to the factory pump but i have written an install guide in the DIY section which may help explain it a way to minimise it.

ps. did u buy that IC??

[benm]

I've had an 040 in my car for about 1yr now.

It's certainly harder to start (you have to switch the ignition on, wait for the fuel pump to click off and then turn the key over).

I can hear the pump but -only- when starting my car at midnight in the garage with the roller doors shut (ie, you can't hear it out on the street).

[lukits01]

I have a bosch 910 installed externally

It starts fine

I dont wait for the pump to click off before I start, is this bad?

It makes a slight buzzing noise in the cabin barely noticable if you have the parcel shelf and rear seats on. But lately at idle it seems to be buzzing louder than usual, Im not sure why either... hope its not dying :wassup:

[raz0r$harP.UK]

I've had an 040 in my car for about 1yr now.

It's certainly harder to start (you have to switch the ignition on, wait for the fuel pump to click off and then turn the key over).

I can hear the pump but -only- when starting my car at midnight in the garage with the roller doors shut (ie, you can't hear it out on the street).

Yeah I think it was your post I saw, plus a mate of mine who got a Bosch pump (not sure which model) had the same thing happen.

[benm]

I believe it is fuel pressure related....

[Kaido_RR]

I have a Tomie Fuel-Pump, awsome pump dont have to wait for it to pump, i just turn it on, its very loud can hear at pumping before starting the car and when driving it awsome sound

[gtst25]

I'd say the problems with the cars not starting would be the check valve wasn't installed on the pump when installed. If you don't do this the pump has to re-prime the system once the car has been left for awhile.

Below is a photo of the 044 we installed in my r33 four weeks ago - I didn't install the check valve so will have to fix this when I get round to it.

The 044 only just fits into the tank and was a pain in the arse job so if I did it again I'd keep the factory pump intank as a lift pump then use the aftermarket one externally.

Good luck.

[Kaido_RR]

just like gtst25 said, i hear installing the bosch pumps can sometimes be a **** to install in an r33 as it is such a small spot. The tomie pump i bought was just a direct bolt in came with-every i needed and took about 30mins or less to install