Has anyone....
Thread Starter
Le Mans Master
Joined: Sep 2006
Posts: 6,050
Likes: 147
From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
Has anyone....
I have had this car for 20 years.
i like the car, but the fuel injection sucks.
i like the look of the TPI, it adds uniqueness to the car.
I would love to change it over to a non bypass fuel injection pressure regulated system.
where the fuel does not return to the tank. Like on a LS motor.
has anybody done that? I
know, these cars have driven millions of miles with this system.
i personally haveDriven this thing over 100,000 miles.
but not without a lot of fiddlIng with it.
tired of working on the same faulty parts. Its keeping me from doing upgrades and improvements by using up my time working on the injection system.
i like the car, but the fuel injection sucks.
i like the look of the TPI, it adds uniqueness to the car.
I would love to change it over to a non bypass fuel injection pressure regulated system.
where the fuel does not return to the tank. Like on a LS motor.
has anybody done that? I
know, these cars have driven millions of miles with this system.
i personally haveDriven this thing over 100,000 miles.
but not without a lot of fiddlIng with it.
tired of working on the same faulty parts. Its keeping me from doing upgrades and improvements by using up my time working on the injection system.
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
I wonder what needs work so often?
Since the L98 system is pressure compensated, and the returnless system is not, you'd need to re-tune the ECM to accommodate lower fuel delivery at high plenum pressures. Otherwise, I don't think that converting (however pointless) would be very hard.
Since the L98 system is pressure compensated, and the returnless system is not, you'd need to re-tune the ECM to accommodate lower fuel delivery at high plenum pressures. Otherwise, I don't think that converting (however pointless) would be very hard.
