Increasing fuel pressure

[Steve Spiers]

Glenn wrote:

>
> The Cartech rising rate fuel pressure regulator or FMU has a number
> of adjustments depending on the model, the first is the onset of gain
> this is the point where the presser starts to be increased over the standard
> fuel pressure based on the intake manifold pressure, the second adjustment
> is the rate of gain which is the speed at witch the pressure is increased

This sounds great! How much ado they cost etc?

Thanks for your reply, I had thought through most of what you talked about.

I have a few last worries; I believe the fuel pump is up to delivering high
pressure at the required flow rate but what if Im wrong? I would assume that if
the pump could not flow enough fuel at, lets say 80 psi, the pressure would
drop. Is this correct? A profesional I know said I would need a fuel flow gague
as well as a pressure gague. Once the regulator was set up do you believe it is
nessary to have a permamnt pressure gague? would the setting on the regulator go
out of adjustment over may kms?

My car has simple Bosch LE injection. Its a 1300cc SOHC turbo. The fuel pump
seems to be the same as another car I have, also with Bosch LE, yet its a 2L
DOHC turbo with much more power.



>
>
> The question I have for you is why would you want to use a rising rate fuel
> pressure
> regulator when the purpose of this group is to develop an programmable ECU
> which will
> allow you to inject the right amount of fuel by simple setting it to do so.

heh - well many reasons.

For one I could not find a diy-increase the fuel pressure list I could subscribe
to.
Im a cheep bugger!
My car does not really warrent a programmable system! It would be worth twice as
much as the car.
I basically just want to get as much go out of my car without much expence. I
don't have the expertese to build my own ECU. I could buy an aftermarket system
but Its not really worth it unless you want to get a lot more power.

Steve



----------------------------------------------------------------------------
To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org