Anyone know the fuel pressure a TBI pump makes?

[84_Chevy_K10]

My friend is putting a carburated engine in his TBI truck. I know TBI is fairly low pressure, but low enough for a carb? I think it's 10-13, which is too much, but a pressure regulator could bring that down to the 4-7 range.

At any rate, what kind of pressure does a TBI pump make?

Tim
'84 Chevy K10, lifted, loud, fast, and 3/4 ton axles

 

[newyorkin]

I believe you are correct, 10-15 psi from a TBI pump.

Ratch
<A target="_blank" HREF=http://k5.8m.com>http://k5.8m.com</A>
**K5 - What more is there to life?**

 

[michaelm]

the reg is what sets the pressure that the pump maintains.

 

[Sparky87k5]

Make sure you use a regulator that has a port to cycle excess fuel pressure back to the tank, otherwise you'll burn your fuel pump up in no time. Look for a 3 port fuel regulator, incoming, carb & return. I run one and set carb pressure at 5-6psi for a Holley. It's also an excellent way to keep from experiencing vapor lock.

87 K5, D60 & 14FF, 5 sp & NP208 & 383 stroker. Build it Bulletproof and take it fishing!

 

[84_Chevy_K10]

Cool. Any suggestions as to what kind of regulator to choose, where to get it, and how much?

This kid was going to buy two sending units and run a mechanical pump! Good thing I told him that wasn't necessary, what a waste of work.

Tim
'84 Chevy K10, lifted, loud, fast, and 3/4 ton axles

 

[CaptCrunch]

I ran a regulator from Summit in this kind of application with no problems at all.

-Mikey
1987 Chevy K5 Blazer- 350 TBI
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