upgrade for 1991 350 tbi

Danny Barrett danny_tb at postoffice.utas.edu.au
Fri May 15 01:05:26 GMT 1998


Something I came across in a performance magazine is to take put a relay on
your throttle position switch, so that when you're at WOT, a couple of extra
injectors start squirting somewhere near the throttle body. This will make
the engine use a LOT of fuel, but I don't think there will be any problem of
not enough fuel going through. Basically, this helps if your injectors are
OK, but can't handle a high enough throughput. You splice into the injector
signal of another injector for this, but, as I said, it only gets switched
on at WOT. This way, you might not have to reprogram your 'puter for higher
flow injectors, but you still keep WOT richening. You know, it's just so
crazy, it might work!!! Of course, you would have to get the right sized
injectors, and you would also have to drill/tap holes for the new
injector(s), but it might work...

Danny Barrett.


>I hope someone can help me.....
>What can you gentlemen suggest I do to upgrade the tbi system on my 1991 chevy
>350 p/u. I am going to build it up to about 360 h.p. & need more fuel.
>Anything you can suggest besides spacer for the tbi or injectors would be
>appreciated. Do you think the tbi can flow enough fuel for this h.p.
>Thanking you in advance.....Cam Mcfarland.
>
>




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