TPI fuel rail lines in & out
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Joined: Oct 2004
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Car: All GM
Engine: All Chevy
Transmission: TH350 / 700R4 / 4L60E
Axle/Gears: custom GM 8-1/2" 456 posie
TPI fuel rail lines in & out
Can anyone please tell me which line is the supply and which is the return on the TPI fuel rail? Is it 3/8 supply and 5/16 return or is it 5/16 supply and 3/8 return?
Thread Starter
Junior Member
Joined: Oct 2004
Posts: 81
Likes: 0
From: Earth
Car: All GM
Engine: All Chevy
Transmission: TH350 / 700R4 / 4L60E
Axle/Gears: custom GM 8-1/2" 456 posie
Thanks,
Thanks for the info
I am using an aftermarket MSD 110 PSI fuel pump. Would you know if the stock TPI fuel regulator is capable of handling this much pressure?
The MSD pump has a 3/8 inlet and a 5/16 outlet. I will have to make up some kind of fitting to boost the 5/16 outlet back up to 3/8. I’m not sure why they made the outlet of that pump 5/16, that is why I was confused about which inlet line to use on the fuel rail.
I am using an aftermarket MSD 110 PSI fuel pump. Would you know if the stock TPI fuel regulator is capable of handling this much pressure?
The MSD pump has a 3/8 inlet and a 5/16 outlet. I will have to make up some kind of fitting to boost the 5/16 outlet back up to 3/8. I’m not sure why they made the outlet of that pump 5/16, that is why I was confused about which inlet line to use on the fuel rail.
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