10-01-2002, 05:35 PM
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CC Member
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Join Date: May 2000
Location: Vacaville, CA, USA,
Posts: 149
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Not Ranked
Luke,
Make CHP prove it - who do they recommend?
Having your motor dyno'd serves a number of purposes;
1) If its going to blow up, its going to do it early. Might as well be on the stand and not in the car.
2) Some say you should take it easy the first few thousand miles then get on it. I say stand on it - if it breaks it needed replacing anyway. I babied my old motor and it spun a bearing - twice. Damn wimp motor! I have seen John Force's team out rebuilding his funny car egine between races. He sure isn't taking it easy when the green flag drops!
3) Prove the numbers the builder tells you his motor will make. HP and torque are mystical numbers that everybody lies about. If they tell you it will make 500 HP - have them prove it.
That said, there really is no other place that you can see the results of the work you do to the engine other than the dyno. They don't necessarily tune it while it is running. They might shut it down, let it cool, and make some carb or timing adjustments. Then they fire it back up and see what new numbers it will make. Most dyno operators like to play, and see if they can extract a little more power. But, for every hour your motor is on the dyno, its going to cost money. So you have to decide when enough is enough.
Brad
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