any one know the fuel pressure please
 

hi just fitted my new fuel reg does anyone know what pressure i should run with 440 injects help would be gratefully recieved
cheers
graham

depends on other mods, cars vary slightly but a good starting point will be 3bar at idel with the vacuum pipe disconnected from the regulator body...............

alyn

Bought an SX from Alyn above, set to 3 bar as he says. I'm running 550cc injectors/Walbro
Graham.

thanks alot guys got. i've got a apexi power fc being fitted in 2 weeks. just need everything setting properly before the guy gets here mines a 94 wrx any one got any clues of what bhp i'll ahieve and any other ideas of what to do before the map

ive got :
hks filter
front mount intercooler
Full 3" exhaust both decats
ported headers
440cc injects
ported tdo5 turbo
evc 5 boost controller
walbro pump
fuelab reg
if anyone suggests anything else i'll get it done. need to get everything done before friday 18th.

I think your 440cc injectors will be on max duty.
If you are being mapped by AndyF then ask him for advice.

Not sure what TD you have (16g 18g 20g) but my Sti v3 with similar mods and a 20g+ 550cc injectors hit 407 bhp......

Realistically: about 360/380

Will be a great engine.
Graham.

MrJud

I run a similar spec to you apart from my TMIC (STI8). My inj are also 440cc and run to their safety limit and see around 86% DC. AndyF said that if I upgrade the turbo from TD05/16 spec then bigger injectors would be needed. If you can get some larger ones now, it wouldnt hurt at all.

thanks alot m8 ahet bhp is yours then and is it still rliable

cheers
graham

Not sure of the hp but AndyF said that the turbo was maxed out at 1.3 bar on my setup and was losing efficiency above that. It was mapped for reliability though so I run 1.25bar.

One of my mates has a P1 with 340hp (well lane rr I think) and mine is a bit quicker!! much to his displeasure.