I need more boost

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Posted by Don in Missouri [162.158.74.36] on Saturday, July 08, 2017 at 13:30:09 :

In Reply to: 4bt question posted by Bruce in BC [108.162.246.188] on Saturday, July 08, 2017 at 12:30:39 :

I am only getting 12 psi tops.

I have plenty of fuel now with lots of black smoke and EGT exceeding 1250 If I push it.

I need more air.

This is in my Grand Wagoneer with TH475 and, 2.73 gears and 31" BFGs. It will go 85, but need more boost to decrease my acceleration time.

I am running VE pump with the fuel screw turned in to the tamper proof stop on the screw.

It has an aftermarket fuel pin and 374 governor spring.

I'm running injectors that are suppose to add 40 hp to a 6bt.

I have a rebuilt Hx35 off a 130 hp p-pump 4bt and a 2.5" exhaust made from pieces off a bread truck, including the muffler.


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