I bought my TR3, 1960 TS 78563 about 16 years ago, and rebuilt the engine.
During the rebuild I found the head casting to be cracked, so I bought a
replacement, The cracked one has the slanted bottom to the thermostat
housing, (2nd phase high port). The replacement head, has the rounded
bottom thermostate housing (1st phase high port).
Question #1, Is the 2nd phase high port head alot better than the 1st phase
high port head.? and why?
Note: I also installed 86 mm sleeves and pistons during the rebuild. I read
where they used the 3rd phase high port head with the 86 mm sleeves and
pistons Thus,
Question #2, Is the use of the 1st phase low port head with the 86 mm
pistons a problem and what does this do to comperssion ratio?
Question #3, How do I boost octane from the premium unleaded?
Qustion #4, Any lead additives out there that work,? and do I mix both, lead
and octane boost?
/// triumphs@autox.team.net mailing list
/// To unsubscribe send a plain text message to majordomo@autox.team.net
/// with nothing in it but
///
/// unsubscribe triumphs
///
|