General Category > Quadrajet Carb Talk and Tips

Electronic Quadrajet and E85?

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b4black:
I have a 1983 Buick Regal with a Turbo 231 V6 that uses an electronic Quadrajet E4ME.

Can this carb be modified to use E85?  (I'm familiar with E85 and realize it needs 30% more fuel)  Shouldn't be a problem for the secondaries, but I'm not sure about the primaries with the MC solenoid. 

Cliff Ruggles:
The parts we sell will hold up fine but not sure exactly how to tune it.  I would imagine you'd need to install much larger main jets so the M/C solenoid could put down enough fuel to make it happy.

Another option would be to run straight off a set of jets and not use it.......Cliff

shawnr:
"Another option would be to run straight off a set of jets and not use it.......Cliff"

You mean not use the mixture control solenoid and just go with a straight mechanical carb and no ECM controlled stuff? I do like that idea since I could always go back to the original carb.

Thanks,
Shawn

Cliff Ruggles:
Yes, they will run fine straight off the jets w/o the M/C solenoid.  Might take a few attempts to figure out the exact jet size.  I can provide a good starting point if you can tell me what size the OEM jets were and the MAB sizes......Cliff

shawnr:
Since I wouldn't know how to tell either of those, is that something that you could check if I would run the carb over to your shop some evening after work? Good reason for a motorcycle ride.

b4black and I are in exactly the same situation so it would be beneficial to both of us.

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