ORIGINAL: Sport_Pilot
But since I really need a 46 anyways, it isn't worth doing that. I don't know, Fox's are fairly high performance engines. The numbers you posted are fairly impressive and it isn't even broken in yet.
Yes, I think it would be an ok 40. Better than the LA...comparable to the FX from OS.
It won't have the performance of a .46 but with a good carb should be a good performer. I would think the present Fox muffler would fit, if not then Tatone and others make strap on's, and Mac's Mufflers probably has a manifold for it. I would buy a carb and use it on a spad or something. BTW did you use 100% castor oil?
Since I really need a .46...I need to kick @#$!% lol. I want to build a spad3d. The present day FOX mufflers are different. Tried on at the hobby store. They moved the mufflers holes out about 1/4 inch or so. The muffler I modified is a MVVS and it fits good just a tiny bit small but I don't see it causing problems if its not overpressurizing. I would probably cut it open though and add a mousse can to it anyways in the end.
I took 15% powermaster and beefed up the castrol by about 4-5%. I don't think that powermaster is 100% castrol. The engine was not that hot when it ran out of fuel....I could touch it and hold on to it no problem in less than 30 seconds. Nothing like todays engines.
Also maybe I have bad memory but I thought the Barn door Fox's came out later than that. Check out E-Bay, you can buy junker Fox's with good carbs for a lot less than a new carb. Look for the MKX twin needle.
I don't know what the name of this engine is....? I do know I graduated HS in 1980 so that was at least several years after I bought this engine. Maybe they were just putting these crummy carbs on at first and then changed shortly after.
The parts carb is a good idea...thanks.