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srtboi187
03-01-2011, 02:21 PM
well i have found some post on here about it, but i really was wanting to know what are the exact fittings that i need to use on my truck. also what do you do with the regulator thats part of the tbi. thanks fellas.

helo
03-02-2011, 08:10 AM
If you aren't going to get crazy with the pressure, you can just put the external regulator on the return side and leave the stock regulator alone. I have a 60psi pump, so I opted to make a block-off plate. Made it with a piece of steel and cut a gasket from rubber-fiber fual-rated gasket paper (from napa it's grey).

At JEGS, the kit with both TBI fittings is the 4th line down on this page: JEGS Fuel Injection Fittings (http://www.jegs.com/p/JEGS/JEGS-Fuel-Injection-Fittings/1287062/10002/-1). P/N 555-103105K You only need the 16mm o-ring fitting if you leave the supply line alone.

I currently have my regulator back by my tank with the return port from TBI blocked with a M12x1.25 (or whatever it is) bolt. There's more than one way to plumb it up, a lot of guys will say what I did is wrong, but there are plenty of guys on here that don't have a return from the TBI with no significant issues.

Ultimately I am giong to get some braided stainless hoses ($50 from midwest hose) and fittings for the fuel filter, and then move the regulator to the return side. ATM, I just have it spliced up with goodyear high pressure fuel hose and hose clamps, regulator mounted to the frame in front of my tank.

chevyz71man
03-03-2011, 06:59 PM
How often do you really need to change your pressure.... Figure out your HP and see what you need for injectors. Set it and leave it alone.