TBI & Fuel pressure regulators
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Car: 90 Formula -- tot resto in progress
Engine: 350
Transmission: 700R4 w/ 2500 stall, by Owen @ ARD
Axle/Gears: 3.23 posi disc
TBI & Fuel pressure regulators
At the moment, there's a couple of active threads that deal
with fuel pressure regulation for TBI's, but I haven't yet seen
any responses that will help me out, or that might even go in
the direction I'm interested. So for the master Yoda's out there...
Project data:
-- A 350 modified enough (cam, heads, headers, etc) to justify
700 - 750 cfm induction.
-- Cost-benefit analysis -> keep the TBI control system intact
but upgade as necessary, such as:
- ECM upgrade from RBob, & custom tuning
- TBI modification to support the cfm requirement above.
The original TBI unit has a static pressure regulator, which can
be upgraded to a variable one. But there doesn't seem to be a
way to accurately measure the pressure at the injectors.
For maximum tuning of these units, how useful is it to know this???
Assuming it is useful, what about removing/disabling the built-in regulator,
and adding an external one to facilitate precise pressure measurement?
thanks,
kk
with fuel pressure regulation for TBI's, but I haven't yet seen
any responses that will help me out, or that might even go in
the direction I'm interested. So for the master Yoda's out there...
Project data:
-- A 350 modified enough (cam, heads, headers, etc) to justify
700 - 750 cfm induction.
-- Cost-benefit analysis -> keep the TBI control system intact
but upgade as necessary, such as:
- ECM upgrade from RBob, & custom tuning
- TBI modification to support the cfm requirement above.
The original TBI unit has a static pressure regulator, which can
be upgraded to a variable one. But there doesn't seem to be a
way to accurately measure the pressure at the injectors.
For maximum tuning of these units, how useful is it to know this???
Assuming it is useful, what about removing/disabling the built-in regulator,
and adding an external one to facilitate precise pressure measurement?
thanks,
kk
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Car: 83 POS monte carlo 2015 chevy P/U
Engine: 92 5.7 tpi 5.3
Transmission: 700r4 6L60E
Axle/Gears: 2.42 too high
what the fuel pressure is set at is a need to know item.
you can get a fuel pressure gage kit that will allow you to mount an adapter where the fuel filter goes at & tie the pressure gage into the adapter. you would only have this hooked up when you are making a change to the fuel pressure.
you can get a fuel pressure gage kit that will allow you to mount an adapter where the fuel filter goes at & tie the pressure gage into the adapter. you would only have this hooked up when you are making a change to the fuel pressure.
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