Quote:
Originally Posted by Mike Taylor 3601
I was reading post and going to make basically same statement as you Terry.It does'nt matter what your
burett or mic's or caliper shows the tech man goes by their tools reading it's our responsibilty to leave
room in our measurements for difference in gauges,just like lbs per cubic inch classes it's your responsibility to claim correct cubic inches.I had customer truck pulling406'' limit so everyone built400sbc
30 over he got pumped 406.7 would'nt pass so I had to destroked cranks to 3.735 stroke deck block.007
rebalance actaully ran better then because crank had stroke&index equalized then.
I heard of some Dodges that got bounced at Indy several years ago few minutes later truck owner supposedly came up on golf cart w/ the updated specs that had been faxed to him from mopar so they were legal.Has anyone else heard that story before?
Mike Taylor 3601
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The problem with a P&G pump is its not that accurate (dead on). Cranking speed of the starter/voltage of the battery and the cam shaft over lap has a little to do with the reading not to mention the temp allowance used. Normally if one is used correctly and all othe varibles are there (cranking speed, etc.) the P&G pump will show a little UNDER the actual cubic inches. It all depends on the person using the pump and his/her experience. Not all P&G pumps measure the same either.