Fuel Pressure

[SFLee]

what fuel pressure do stock run at ?

With aftermarket fuel regualr what do you set it at ?? and advangate of setting it higher or lower?

[Peter Gidden]

About 40psi.

Set it too low and not enough fuel!

[SFLee]

thanks

what about set it to high ??

[JekylandHyde]

If you set it to high you will be wasting fuel by running real rich as your drive around town.

If you set it way to high, you could exceed the capabilities of the rest of the fuel system.

____________________________

440 RWHP/365 RWTQ @ 22 psi · 11.44@120 mph
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[CosmosblueMR2]

So in what circumstances would a Stock FPR not be able to cope ? (ie why do you fit an aftermarket one ?)

thanks

[JekylandHyde]

I went to an AFPR when I wanted to run more than 17 psi of boost on a T3T4 turbo with the factory injectors.

I upped the FP and ran race gas which allowed me to run 20 psi of boost safely (with water injection!)

[CosmosblueMR2]

would an AFPR be recommended when I get my car mapped upto 1.3bar (i have a walbro 255lt/hr FP)..

REV4 engine
St205 CC
CT20b
decat and HKS dragger
PE V II induction kit
MBC (soon to be EBC)
(soon to get PFC & commander - and mapped)


just wondered

[jimGTS]

would an AFPR be recommended when I get my car mapped upto 1.3bar (i have a walbro 255lt/hr FP)..

REV4 engine
St205 CC
CT20b
decat and HKS dragger
PE V II induction kit
MBC (soon to be EBC)
(soon to get PFC & commander - and mapped)


just wondered

you would need the car remapped i would have thought?

[CosmosblueMR2]

you would need the car remapped i would have thought?

Jim you DONKEY !
read my post again
(I mean fitted before it gets mapped.. )

[jimGTS]

Jim you DONKEY !

well, thats what the ladies say.....


your post wasnt quite clear old bean, im getting an afpr asap....

[SFLee]

hehe
next question is where is a good install guild in ENGLISH for SARD Fuel Regulator and
I know atsracing have one just want to see how to connect the sard one

[JekylandHyde]

SFLee, if you get a SARD unit, make sure it is 1:1.
I have seen SARD units that go from 2:1 to higher and that will cause you major problems.

[SFLee]

how can you tell a fuel regulator is 1:1 ??

[JekylandHyde]

It should be advertised the way it is ... or at least the instrcutions or box should say so.

[ATSAaron]

would an AFPR be recommended when I get my car mapped upto 1.3bar (i have a walbro 255lt/hr FP)..

REV4 engine
St205 CC
CT20b
decat and HKS dragger
PE V II induction kit
MBC (soon to be EBC)
(soon to get PFC & commander - and mapped)


just wondered

A CT20B will max out before the 540cc inejctors at 42 psi, so you most likely don't need the AFFR. (edited by admin)
Aaron