Quote:
Originally Posted by lucky1
Can operating an electric fuel pump near the tank simultaneously with the
Mechanical pump damage the mechanical pump ?
Thank you.
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Been running the SD TA that H-O Racing built for street the way they set it up for a Q-jet for 44 years.
They used Carter pumps on it. Rotary mounted in front of the tank to a larger than stock line to a mechanical Carter on the engine. The original Rotary electric finally failed about 8 years back so just replaced it with another identical unit from Carter. Still has the mechanical pump that was on it in 1979...
My understanding was that with the small fuel bowl of the Q jets having more volume (not pressure and IIRC it is the lower 4ish psi unit) is key and helps at the top end keeping the bowl full.
I don't believe it wears out anything having both a mechanical and electric rotary.
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1984 RX7 Jim Hand style 455 /200 4R Project car
67 White/Gold GTO 4 speed sold, 1968 GTO 4 speed sold, 1969 GTO auto sold, 68 Firebird 400 4 speed (455) sold, 65 GTO Night Watch Blue 4 speed sold, 64 GTO Nocturne Blue 4 speed sold, 71 GTO Gold auto sold. 1975 Formula 400 auto sold.
Hopefully to be restored, H-"O" Racing 73 Trans Am SD 4 speed,
Sons 70 Formula 400 auto, and wife's 1974 AMX 360 auto, 1975 Jeep Honcho 4x4, 1965 Buick Special post
Last edited by 455dan; 07-13-2023 at 11:49 PM.
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