04-26-2013, 04:50 PM
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Senior Club Cobra Member
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Join Date: Jan 1999
Location: MARKSVILLE,LA.,,
Posts: 3,235
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Not Ranked
Quote:
Originally Posted by AL427SBF
Barry, to further the discussion ...
Parameters -
1. All engines are in the car and are registered for the street
2. All engines run on pump gas, figure 92 octane max, means Cr probably no greater that 10.5:1
3. Expected peak BHP is ~1 for every cubic inch, e.g. 427 CID is expected to have ~427 BHP
4. Motor was put together properly and broken in with > 2000 failure-free street miles
If a customer came to you for a dyno and requested you measure as much of the power band as is reasonably safe to do, what would be your starting RPM to record data?
Client could have motor sizes of -
a. CID < 351, RPM Start = ?
b. CID 351-427, RPM Start = ?
c. CID > 427, RPM Start = ?
Certainly not Engine Master candidates, but right in-line with good performing street builds.
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What you really need to do is go to a shop that has a dyno and spend a few Saturdays there watching and learning......You obviously have never had an engine dyno'd and I'm guessing never even seen one on a dyno,much less watched an engine going thru it's paces on a dyno......
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DAVID GAGNARD
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