[Diy_efi] Question about TBI fuel pressure

[Charles M Slack, III]

Jim, Use an older in tank fuel pump and sensor form a Buick or some 
other GM. The TBI
components used on the GM trucks & cars  from ~ 87 on are very plentiful 
& cheap.
The Aztec pump you are contemplating is a pump& fuel level sensor 
combined that
is very pricey.  The in tank GM TBI fuel pumps can be purchased for $28 
to $45,
you also need to scour a few junque(high class junk) yards for various 
other TBI
components.  Most TBI & TPI use a fuel pressure regulator that you will 
also need.
Don't forget to run a return fuel line back to the fuel tank, the unused 
fuel is
circulated back to the tank.  Look at access to the fuel tank pump & 
level sensor,
you may have to make a covered opening to gain access later on, much
easier than dropping the tank.
Good Luck,
Charlie Slack
65 TBird
Austin, TX


Jim Kyser wrote:

> I am adapting a TBI system to my 1946 Willys Jeep with a Buick V6. 
> (yeah, I know I could adapt a Buick TPI setup but the parts are much 
> more expensive)
>
> My question regards fuel pressure. I would ideally like to run an 
> intank pump and am looking at the pump from a Pontiac Aztek. 
> Basically, the pump and fuel level sensor are all mounted together in 
> an assembly that bolts in from the top of the tank though the typical 
> large opening. The problem is that the Aztek pump is for a TPI setup 
> and puts out upwards of 40 PSI. I know that the TBI systems need more 
> like 5 PSI. Could I just put a regulator inline to drop the pressure 
> down?
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