My $.02 worth on the mag and compression. I agree on the timing being a limitation, but as far as voltage, a well tuned E4A or F-4 mag will put out all the voltage that any compression you can generate in that engine will require. IMHO.
I for one have a lot of faith in the IHC engineers. Those engines were designed for a certain RPM and compression. Notice that you can still get alot of these old girls to run just by lapping the valves, fresh oil, and clean carb, and tune up on ignition. Anytime you push an engine beyond what it was designed for, failure comes faster. Yes, you can push the engines WAY past their stock config. And yes, you can get some impressive HP and torque out of them. But is that what you really want in a Regular? I have always wanted to build a "sleeper" SM, and still may do it. My F series tractors are for fun and trailer queen circuit, not HP or pulling monsters.
You will end up breaking something in the long run, especially if you run it hard and run it frequently to put your extra ponies on display in a pull or similar. Once again, IMHO.
In the end, it is fun to do , and it is your tractor, so go for it. Just not my cup of tea. No offense or flame intended.
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Today's Featured Article - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
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