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Re: fuel requirements for rebuilt 10:5- compression 340
[Re: LaRoy Engines]
#1266979
07/14/12 12:38 AM
07/14/12 12:38 AM
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Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
DaytonaTurbo
Too Many Posts
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Too Many Posts
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
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Quote:
Quote:
The motor is in a challenger TA, 340 six pack. I wanted the engine put back to stock. The rebuilder told me that "stock" was pretty close to 10:5-1. Just wanted to make sure that this motor would be fine on pump gas and not be harmful to the engine.
Pretty close to huh? How close did he get it? You might be worrying for no reason.
So, what compression was the engine really built to and how was the compression ratio determined. Have him explain how he got 10.5:1. Deck height, piston type (part #, valve relief cc's) cylinder head cc volume, gasket thickness, bore and stroke?
 Without any actual specs on the engine build, any guesses of ours are worthless. Best I can suggest is start with pump 93, get it dialed in and see if you can go down from there without a ton of retuning.
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