Fuel Supply For Boosted Power

[jeffrosie]

As the topic says, what have those of you who ahve gone big power done for fuel requirements??

Fuel pump - use std and disable std relief valve in tank OR fit upraeted unit and use of adjustable fuel pressure regulator??

If adjustable fuel pressure regulator is used, a return fuel line has to be fitted.

Injectors - what cc and where from at real world prices??

Don't think that this has been covered at all.

[jeffrosie]

Soooo many boosted cars and nobody with ideas.

The std injectors and fuel system is good for 220/230 hp at Toyota's lower fuel pressure.

So fit a uprated high capacity/high flow fuel pump with return line and a fuel pressure regulator with pressure bumped up to 45psi (std fuel pressure on Toyota's is 33psi).

Now thw std injectors should easily be capable of fueling for 300 hp.

[sparkystav]

i just have a walbro pump and 500cc injectors. though 440's would have done

[jeffrosie]

But you got the GE head.

Are the injectors the same for both - GE & FE??

[sparkystav]

yep,

well i bought the injectors for the FE and they fitted straight to the GTE rail

[Yeldarb]

I have 550cc injectors, adjustable fuel pump and return line to tank.

Not a lot of help to you as I have a 3S-GTE.

[jeffrosie]

I know that the 3SGTE engine is different from the 1G engine. I have a ST205 with just over 500 stallions :P

So anybody using the std injectors with increased fuel line/rail pressure??

[sparkystav]

why do that?

its been proven in the past that uprated injectors alone work.

i havent uprated my fuel pressure reg or anything nor do i plan to when i move to a big single and 400ish horses.

[jeffrosie]

Its ok then to stay with std fuel system and just go bigger on injectors?? and get a standalone ECU to sort it all out sparkystav?? A lot less work - perfect then. Where did you get your injectors from sparkystav?? Heard PowerEnterprise do a set that fits the 1G fuel rail - got any part numbers :D please. Any idea of cost??

[sparkystav]

Yeah ive got power enterprise ones, but i got them from a member on here secondhand.

[Asi]

off topic. stav where did you get your walbro pump from?

thanks

[jeffrosie]

Part number please :)

[jay_russell]

http://www.powerenterpriseusa.net/products...ector/index.htm

does anybody know what injectors it was that fit the 1gfe

i have linked the web site so if you have the answer would be great

[jeffrosie]

Hope some body here has the part#

[micromarc]

I m sure i read somewhere that the incectors in an mr2 tubby would fit cant remember where i saw it tho!lol

[jeffrosie]

MR2 turbo uses the 3SGTE and that uses side feed injectors.

3SGE top feed are too short or could have used REV3 3SGE.

[jeffrosie]

I think its gonna be easier to fit a FPR, with uprated pump and return line with a hike in fuel pressure. And as an AEM will be fitted, the fueling will be well under control.

Easier than locating bigger injectors.

Maybe the std FPR in the tank can be modified to increase fuel pressure.

[sparkystav]

Why?

youve been told the answer elsewhere,

[jeffrosie]

Just can't find any info on the uprated injectors. A few people here have them, but nobody has any part no's. Had emailed a couple of places and did not even get a reply.

[jeffrosie]

Found at last the part number for the Power Enterprise Injectors

TH550A - blue in colour and a direct fit with no spacers needed.