mtngun
Addicted to ArboristSite
Measuring squish. I followed Mr. Snelling's suggestion and used grease to tack a piece of solder on each side of the piston. No need for rings on the piston at this point. The jug was then bolted down and the starter cord yanked several times. Repeat for measurements front and back.
Squish with no base gasket = 0.027", 0.028", 0.028", 0.029".
The plan is to shave 0.008" off the base of the cylinder, shooting for 0.020" squish with no base gasket.
One more measurement, as long as I had everything apart.
From the top of the exhaust port to the squish band:
BB = 0.981"
OEM = 0.991"
Not a huge difference, but it's not good for the BB exhaust port to be higher, considering the OEM exhaust port is probably too high to begin with.
The 2nd generation BB kits are supposed to have a higher compression ratio and revised porting, which is why I tell everyone who asks to wait for the 2nd generation kits.
That's as far as I got tonight.
Squish with no base gasket = 0.027", 0.028", 0.028", 0.029".
The plan is to shave 0.008" off the base of the cylinder, shooting for 0.020" squish with no base gasket.
One more measurement, as long as I had everything apart.
From the top of the exhaust port to the squish band:
BB = 0.981"
OEM = 0.991"
Not a huge difference, but it's not good for the BB exhaust port to be higher, considering the OEM exhaust port is probably too high to begin with.
The 2nd generation BB kits are supposed to have a higher compression ratio and revised porting, which is why I tell everyone who asks to wait for the 2nd generation kits.
That's as far as I got tonight.
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