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Old 01-07-2022, 01:31 AM
Xcomunic8d Xcomunic8d is offline
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Join Date: Oct 2016
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Well that’s pretty much what you to do to hot rod a 4 stroke car engine Jorge. I’ve never heard of this done with a 2 stroke. I’d ask for receipts. Personally why go to all that effort for a 90hp 2 stroke? $ /hp would be relatively high to me.

The old saying about no replacement for displacement applies to boring out pistons.

Shaving the heads will bump up compression. Hopefully no issues burning up seals. But with engine burning “hotter” hopefully no 2 stroke gunk in exhaust. But keep an eye on head gaskets.

The carbs are interesting choice. Most guys throw big carbs and big jets on engines but they’d be better off putting a spacer in. Often what happens is the bigger carbs and jets provide too much fuel and the engine becomes rich. Modestly bigger is ok. But modestly bigger with a spacer is better. One of the reasons I like efi. But for sure run rich on 2 stroker, never lean.

Timing, exhaust, and fuel octane makes sense. Never heard of anyone doing it. but that’s roughly what I’ve done to my LS. Or how I’d treat a 454 to 496 or 350 to 383.

Again why? Just b/c you can doesn’t mean you should.
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