Re: Re: Re: Re: Benefits of higher compression?.

Posted by Neil on June 26, 2004 at 16:45:30 from (138.88.15.38):

In Reply to: Re: Re: Re: Benefits of higher compression?. posted by Ron on June 26, 2004 at 12:27:09:

Well, it sounds like we're largely in agreement over the objective factors, but maybe differ on the subjective aspect of what's "best." And the fact that we can differ on what's best is what makes this country great.

I definitely understand your point about bang for the buck. It's pretty darn cheap to have the head milled or put an lp head on or swap out pistons. And it's generally less troublesome indeed than forced induction.

I, however, come from the "no replacement for displacement" school. In my opinion, there's no better way to add low end torque than to add cubes. Yes, as far as the cost of parts and machine work goes, it's more expensive than a compression ratio increase. But, if you use the tractor for more than a few tractor pulls a year, you would want to factor in any additional cost for higher octane gas. With fuel costs factored in, one can imagine that there are certainly situations in which boring or stroking would be more cost effective than a CR bump.

Of course, in the case of most antique tractors the compression ratio can be raised from the factory level without requiring any upgrade in fuel. In that case it most certainly makes sense to increase the CR at least to the point where it is as high as it can go without needing to upgrade fuel.

At the end of the day I suppose it's all a matter of personal preference as to how one prefers to waste one's money. ;-)

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