carb to TBI

[Chevy_Finatic79]

So Sneaky are you saying that you run non fuel injection rubber hoses from the TBI all the way to the gas tank? thats cool if it works I'd just be worried that under a load that the line would collapse. if you have done this trouble free you r the man

[strokin350]

Originally Posted by Chevy_Finatic79

So Sneaky are you saying that you run non fuel injection rubber hoses from the TBI all the way to the gas tank? thats cool if it works I'd just be worried that under a load that the line would collapse. if you have done this trouble free you r the man

i run the same thing on my 92 sierra with a brand new motor

[Sneakysportsman]

No, I just have the rubber lines connected where they used to screw into the TBI unit. The lines wouldn't colapse under load because the I am still using the original stock pump in the tank. I just have a special regulator designed to handle high volume and pressure and reg down to 5psi at the Carb. Even if there was an in line pump the only way that they would colapse would be a blockage at the end of the inlet. Tbi units dont flow as much fuel as you'd think, at least not stock. Get you 1' piece of rubber line and see how much vaccum it would take to colapse it. Pretty substantial. The reason behind steel lines is saftey. Pressure is safer in steel lines in an accident than rubber.

[03chevy]

not only that Sneaky! but the diff. between rubber and steel. is the steel lines causes less resistance for better flow other than rubber lines

[heavychevy85]

so ur sayin on my 85 350 all i need to do to switch it to throttle body is put a adapter on my center head and a painless wire harness or a donor one and thats about it

[87c10slammer]

you need.... an ecu, all wiring, an intake(or adapter) the tbi, all sensors, the ability to make it a stand alone unit. and alot of patience

[heavychevy85]

ok maybe not then sounds like alot of work i realy don't feel like doin

[87c10slammer]

yeah it is. i tried to convert mine from tbi to tpi with no such luck. it would idle a little rough but stall if i hit the gas. so that is the point that i gave up and decided for the 383 stroker with a procharger on top. if i have all my numbers corect i should be lookin at about 800 hp at 4700 rpm. and gobbs more torque

[rdhack]

Somewhere on the web...I cannot remember the name of the company....but if you search I am sure you can find it is a company that specializes in converting carburator system to TBI fuel injection. Cost averaged 1500 bucks. I thought about doing my 1986 restoration project that way. If I can find the site I will let you know.