How Much Power Out Of S15 Injectors

[sinistaGTR]

Just wondering what sort of power people are running with s15 480cc injectors.

please i know they run 480hp etc etc, but after realistic figures from people that have used them. and what mods.

[paulr33]

upto around 330rwkw sounds reasonable

[sinistaGTR]

so it doesnt matter on turbo etc etc. i got a gt3040, power fc q45 afm, i also have a fuel pressure reg too. looking for 260-280rwkw.

[paulr33]

yeah they will be fine at that power level, i would expect somewhere near 80% duty cycle, somewhere near there. just make sure you have a good pump to keep up and it should be fine.

fuel injection is irrelevant of turbo, boost pressure etc. it purely comes down to how much is being induced and how much fuel you need to maintain the levels and make it combust

[sinistaGTR]

thanks a million paul just saved me 500 bucks or so. yeh i got a walbro fuel pump.

[paulr33]

be careful with the walbros, they are known baddies

and the pump ratings are at 15v in the skyline with stock wiring its only getting 12volts

[paulr33]

the s15 injectors must be manual JDM ones.

australian s15 injectors are only 370cc like the R33 stockers

[sinistaGTR]

yes there the red top manual jdm s15 injectors....bought two sets one was red tops and the others (which i got told were the 480cc) were purple tops so i had to send them back lol.

[mickr33]

the s15 injectors must be manual JDM ones.

australian s15 injectors are only 370cc like the R33 stockers

Hi Paul. With the stock R33 injectors what would you think

they are capable of. Obviously with the supporting mods

such as fuel pressure reg, pump etc. Also im currently

using the walbro. Do you think they are that bad? Im

after around 230-240 mark. Should i change to a 040?

Thanks.

Edited June 30, 2006 by mickr33

[Busky2k]

the s15 injectors must be manual JDM ones.

australian s15 injectors are only 370cc like the R33 stockers

Nope. ADM is 440cc aswell. They are not 480cc as everyone says because they were measured at a different pressure.

[chrissso]

You should get about 345 rwhp out of a walbro.

They don't pump as much as a bosch 040 or 044.

I don't think they're bad at all. I know one guy on here who had a walbro that sucked in it's filter. And I've heard a lot of people have bought dodgy chinese knockoffs sold as walbro's. The knockoffs don't pump muh at all. (Just amke sure it's real!!)

But I think they are a good replacement for the stock GTST pump - although not huge.

[paulr33]

ah good info you have

will update my list of info

[paulr33]

ah good info you have

will update my list of info