Quote:
Originally Posted by bschmittling
OK. I have no problem spending money. Just don't like wasting money. Steel crank? Why. I will not be running over 4000 rpm. Same for balancing.
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Crank: Stronger (less likely to break), better suited to the load (of both the added stress, and rotating mass) longer life, more mass.
Balancing: Because when you go changing parts, adding stress, weight, aftermarket components, then the balance of the engine no longer exists. A balanced engine runs better, safer (less likely to fail) and runs more optimally. Imagine trying to run a marathon with a 5lb weight on one foot and a 10lb weight on the other....... kind of like that.
RPM=who cares how fast you want to run it. Under 4K, over 4K.... irrelevant.
Quote:
Originally Posted by bschmittling
I am thinking deck the block, shave .04 off the heads, add a good cam, and I am good for 5 extra horsepower. That should be enough to get me where I want to go. If not, I'll add more next year.
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Well, seems you have it all figured out. Don't need anyone's help here.
5hp...... I'm doubtful at under 4K.
Quote:
Originally Posted by bschmittling
What I would like to know is given the above mods and using 23" tires, what overdrive should I use? I am trying to shave a year off tuning and just come out next year ready to go. Without an answer, I would just go 10 percent. Any thoughts?
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Apparently you aren't paying attention. You can't "skip steps". No idea what gearing you need until you build a motor and try it on the track. This isn't a "one size fits all" kind of thing. You have to BUILD the tractor. Every one is different. Just like every track is different.
I'm kind of flabbergasted that you keep asking questions, but seem to question the advice.
dvogtvpe basically told you how to build your motor. He's build lots and lots of them. Probably in your best interest to just build it like he says.