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Re: A15 Rebuild Progress

Subject: Re: A15 Rebuild Progress
by ddgonzal on 2018/4/18 3:11:16

Honing is the usual treatment for an engine overhaul. Boring is only called for if the cylinders are unusually worn. The machinist should check for excessive out-of-round or excessive taper before he performs the honing. Honing an A15 is good for 125,000 of normal street miles -- even without using a deck plate or plateau boring methods. Using those methods should result in an even longer-lasting engine


Quote:
I am using a GX head so compression is going up from the stock H95 head
H95: 35cc
GX: 29-31cc

Measure your GX head. If it is 31cc, you'll still be able to run on pump gasoline -- up to 11:1 compression. Instead of $2.49/gallon for Regular, pay $2.99 for Premium. The increased fuel economy means the dollar cost will be a wash in the long run. You can run more spark advance with Premium, resulting in more power and more fuel economy