fpr shim?? - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 08-25-2010, 06:27 PM Thread Starter
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fpr shim??

Ok first off what is a fpr shim and does any one have a write up/pictures on how to do it and what are its benefits? Any info would be great thanks.

96 7.3l f-350
diy intake, fpr shim, ts 6 pos chip, 1.00 ex housing
6in on 35's
triple gauge pod with autometer ultra lite pyro and boost
mbrp 3in downpipe to 4in exhaust
6spd zf6 swap(awesome!)
home built cruise control
251,238 miles

my build

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post #2 of 2 Old 08-25-2010, 07:04 PM
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It bumps up the fuel pressure on higher mileage trucks. Just stand directly infront of your truck and find the fuel filter. Look to the right slightly. A small grey boxish piece on the filter housing. Take the brass plug out its a 17mm. Be careful not to lose the spring or the shuttle in there. Put a 3/16ths bb in the shuttle and reinstal the spring. Then check your fuel pressure. Don't go above 70psi

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