Breathing new life into the 318 in the Scamp!
I agree on both accounts.
The more I look at this, the more I think it's easier for me to run the KB pistons, because it will put the quench up in the head, rather than down in the cyl. under the tight end of the head, with bad quench and I won't have to possibly correct other issues.
I'm starting to lean away from the magnum pistons, because of dynamic and quench.
I mean, look at this... This is true TDC. -
It's not even close to factory spec, which was awful to begin with.
So, as not to do any guess work, I set everything up tonight after work and checked the head.
Amy didn't have any food coloring, so I went for the liquor cabinet. Surprisingly, the sugar from the Grenadine with alcohol helped quite a bit with bubbles.
This first run had a little more grease than I liked and looked like a little over 61cc, so I cleaned it up and rechecked it with less and it is at exactly 62cc as I suspected, with these valves and the plug installed.
The gaskets are a little more forgiving than I expected which also helps my final numbers on these KB's.
These mic at .055"
The gasket is a Fel-Pro 8553PT
They will crush at anywhere from .048"-.045" which, in this case, helps what I'm trying to do with the KBs. Basically, I'm trying to avoid buying high octane fuel and hitting ping. If I can get this engine somewhere in the static of 9.0-9.4 I think I'll be ok on dynamic with 3° Adv.
I think it's time to pitch on these-
http://www.summitracing.com/parts/uem-kb167-030
So, with all of these numbers IRL in mind, this engine should pan out a static floating right above and below 9.4:1, depending on what I get out of the gaskets (.045"-.048") without any additional work on the heads, but I'm really tempted at this point to blend the tight sides a touch.
I agree on both accounts.
The more I look at this, the more I think it's easier for me to run the KB pistons, because it will put the quench up in the head, rather than down in the cyl. under the tight end of the head, with bad quench and I won't have to possibly correct other issues.
I'm starting to lean away from the magnum pistons, because of dynamic and quench.
I mean, look at this... This is true TDC. -
It's not even close to factory spec, which was awful to begin with.
So, as not to do any guess work, I set everything up tonight after work and checked the head.
Amy didn't have any food coloring, so I went for the liquor cabinet. Surprisingly, the sugar from the Grenadine with alcohol helped quite a bit with bubbles.
This first run had a little more grease than I liked and looked like a little over 61cc, so I cleaned it up and rechecked it with less and it is at exactly 62cc as I suspected, with these valves and the plug installed.
The gaskets are a little more forgiving than I expected which also helps my final numbers on these KB's.
These mic at .055"
The gasket is a Fel-Pro 8553PT
They will crush at anywhere from .048"-.045" which, in this case, helps what I'm trying to do with the KBs. Basically, I'm trying to avoid buying high octane fuel and hitting ping. If I can get this engine somewhere in the static of 9.0-9.4 I think I'll be ok on dynamic with 3° Adv.
I think it's time to pitch on these-
http://www.summitracing.com/parts/uem-kb167-030
So, with all of these numbers IRL in mind, this engine should pan out a static floating right above and below 9.4:1, depending on what I get out of the gaskets (.045"-.048") without any additional work on the heads, but I'm really tempted at this point to blend the tight sides a touch.