tz pistons

spannerman · Post by **spannerman** » Fri Nov 13, 2009 9:58 pm

so if the 26j is nla are the 59w still available, i am about to get the barrels done but do not wish to modify barrel height what is the best direction to go in have tried a search but it was a little unclear.
ade.

mj43 · Post by **mj43** » Fri Nov 13, 2009 10:14 pm

Think Padgett's still have 26J and 59W. Sit down before asking how much

scooble · Post by **scooble** » Sat Nov 14, 2009 3:47 pm

I see Fondseca sell TZ pistons on ebay. What about Racing Lines or Dennis Trollope?

spannerman · Post by **spannerman** » Sat Nov 14, 2009 8:13 pm

hows yours coming on scooble, ive started to flow cases filled the nessesary parts just some finneshing off to do tomorrow, then need to sort a tuner out and send the barrels off.
ade.

scooble · Post by **scooble** » Sat Nov 14, 2009 9:51 pm

flowed the bottom cases, just need to finish it off with some wet and dry. I'll probably get the KR1 barrells ported as they are the best condition of all my cylinders. A question for MJ and the others with tuned engines - approximately what head volume or clearance volume should I be looking to set if I am to run 50/50 avgas?

mj43 · Post by **mj43** » Mon Nov 23, 2009 8:07 pm

http://www.teamsparrow.com/cylinderheadsv2_3.xls

The values in for the hemi-head sheet are what I am presently using (I run 50/50)
Never measured with liquid and kept results (haven't got the kit to do it accurately). Ignore where it says Piston flat top that is for a dome

Think people say the plug is 2cc so measured to top of the plug hole would be about 10.9cc