Fuel Pump and Injectors Upgrade

[25GTT]

Hellloooo everyone!

Ok guys to go with the new turbo... hopefully getting done VERY soon! I am chasingf after the upgrade fuel pump and injectors... probably will bew going for about 320 rwhp.

I am a bit strapped for cash at the moment and am chasing a reliable yet nicely priced fuel pump thats not noisy! whats the one that coventrys do? bosch is it?

Also what injectors will fit? is it true about the rx7 ones fitting our cars? how much for them?

I'm not interested in a malpassi fuel regulator.

SteveSST - i am getting my turbo from Grant at Performanz, Are you able to get hold of some well priced injectors such as the rx7 ones and fuel pump if so i will get you to install everything....

ideas anyone???

[rev210]

you have an aftermarket ecu?

If not larger injectors aren't going to be an option.

The rx7 ones are top feed and will require a new fuel rail (not a big deal).

You could perhaps get an adjustable fuel reg and big fuel pump to start with tho.

[25GTT]

Yeah but where do i get fuel pump from and how much??

injectors will be maxing out around 300 rwhp so even with ecu still need new injectors. which ones are good and well priced... not interested in fuel reg... ave now heard of lots of probs with them....

[EVL R33]

Call Robert Butler on 9276 0111. This guy knows Bosch pumps inside out.. I got prices for the 044 (800hp and a bit noisy) for my car @ $375. The 040 which does 102ltr/hour is $260...

The 910 does 126ltr/hour is $193.75.

Just remember if you ring anyone up looking for bosch pumps you have to have 0 580 254 (***) before the pump model. EG 0 580 254 044 for the 044 obviously..

Hope this helps...

Brett

[IMACUL8]

Dan

As Brett said the bosch pumps are sweet. I had the 910 in my R33 and will be putting one in my WRX, only thing Dan is they are loud. So maybe you should look at a Walbro pump, they are quieter.

Daniel

[25GTT]

cool, any ideas on the walbro pump? how much and where do i get them from?

Oh also Dan did you get your bosch from coventry's in morley?

If so i will ring up coventrys and ask for bosch fuel pump 0 580 254 910

$193 aint bad for a pump..

Why is the 040 more expensive than the 910 when it pumps less petrol? any reason in particular?

Do you guys recon the injectors will last at 320ish rwhp? just spoke to Grant at performanz and he said he has seen some doing 370rwhp on standard injectors! YAY!!

[IMACUL8]

Yes, coventry's morley....

I think the 910 is cheaper because of its shear size and age. They are bloody big and have been around for many years (just an opinion not a conclusive answer).

Dan I have also heard that stock injectors start maxing out around the 300hp mark, so 370 sounds a little excessive.

Daniel

[25GTT]

Cool fuel pump sorted.. thanks for that Lads, (Dan,Brett,Dave) Will give conventrys a call ASAP and pick it up on Friday!

Now injectors and I am done.... anyone have any ideas... i do have the Apex ITC (Ignition Timing controller) so injectors should be ok Dave, if i did go the rx7 injectors then how much and what is a good fuel rail?

any other ideas on the injectors situation?? i am just worried about pistons going wrongs if fuel management is not sorted out 100% there is no way i can afford forgies right now i don't want to risk things going wrong when having a more powerful turbo...

going for the hi flow.... 16psi should be ok to be running it on yeah? or is 14psi more engine friendly... keep in mind guys even though my car has been in shows it is still an every day driver and needs longevity!

[EVL R33]

Dan,

I just bought a set of Sard 700cc's from greenline and they were pretty good compared to most other jap brands. Not sure of the price on RX7 injectors but Bosch make some good ones too I'm told but you need resistors etc to get them to work properly. Are you running standard ecu with the add ons like the ITC?? For my own piece of mind I'd be upgrading to something a little more 'secure'...

Car sounds like it'll rip even harder now..

Brett

[caminperth]

Sorry to hijack the thread for a sec but does the 910 fit in the standard fuel pump mount?

When fitting a bigger pump do you need to take into account surge tanks or anything? If not - I'm buying one of these babys this week!

[ix9]

Yes, i also want to know the same thing! Does it fit the stock pump mount ?

Thanks for your help guys (has to be one of the most constructive threads in the last few weeks eh?)

[N I B]

I can do Bocsh and Walbro.Your standard injectors will just make it as we have seen 330rwhp with the stockies.

[IMACUL8]

no 910 does not fit into standard mount....

you need to rweak it a little, its not hard at all.

Daniel

[adam 32]

Now injectors and I am done.... anyone have any ideas... i do have the Apex ITC (Ignition Timing controller) so injectors should be ok Dave, if i did go the rx7 injectors then how much and what is a good fuel rail?  

a timing controller aint gunnah help you control your injectors...

the 910 is a good choice, and yes cam it does fit in the std bracket with a bit of modification. youve got to worry about low/hish impedance when looking at rx7/rx3 injectors. a mate of mine with a VL put these in his car, and just driving around for a few days before tuning ruined his engine as the injectors were spraying so much fuel it glazed the bores.

[Gradenko]

25GTT, I'd go for Walbro pump if noise is a concern. They are drop in replcements (or close to) for upto 255L/hr. Prices compareable or better than Bosch pumps.

When you talk about power goals, can you translate it into power at the engine... I don't understand rear wheel figures. If 320rwhp is all you want, I have a dyno sheet of a 25t on stock injectors that does that. Mine. Dyno's differ huge amounts and rear wheel figures are mostly irrelevant.

Stock injectors are good for 370bhp at standard fuel pressure (engine power), or up to ~400bhp if fuel pressure is cranked to the limit. And you'll probably want something a little better than a s-afc to control new injectors with. My advice would be to setup the new turbo on low boost with the stock injectors and bide your time till you can find/afford new injectors and a pfc (if you want >400bhp).

[caminperth]

dan/adam - what sort of mods are you talking here? drilling an extra hole or making a new mount to suit? I'd have to install mine myself due to the nature of the stereo in the boot and my distrusting nature...

[IMACUL8]

Cam

bracket needs a little jigging.... i dont think any new holes are required (I didnt need any new holes).

Daniel

[N I B]

VL injectors are very small so going to RX7s will drown the thing.

Most RX7 injectors are high impedance(Pink)but some are lowish(Purple)but the lows are rare.

RX7s fit in R32s but not R33s(Side feed)

[caminperth]

Dan - jiggling? Somehow I just can't imagine you "jiggling".. From what you've said it seems like it should be a relatively easy changeover then.

Righto - seems I have a mission for this weekend - fit 910 fuel pump at garage malaga for cool noise and more fuel capacity when I get a regulator.

Thanks for the info. Sorry for hijacking your thread 25GTT..

[IMACUL8]

Cam

Make sure you buy the little filter sock for your new pump, as they dont come with the pump.

Daniel