hey man
got a Jawa moped.
on taking apart the engine i noticed an odd port arrangement
in the cylinder.
instead of the transfers just being holes in the cylinder these
transfers were a diagonal slash going up the cylinder wall
kinda reminds me of Puch open transfers....
my engine is the 207 but i also have access to a 210 and
have noticed the same port arrangement in that motor to.
anybody have any knowledge about these ?
trevor , i know you have them.
those are boost port/transfers.
they work in conjuction with the Main Transfers at BDC to transfer fuel.
there are a good place to start with mild porting
read any post that bigblockfiero posted in the last month.
yep
thats what i thought.
at bdc it looks like they would just transfer more mixture
than just an ordinary transfer
transfer/boost port..........those pesky czechs were thinking
another guy widened the exhaust port and intake ,left the
slant transfers alone and got 43mph with a 18phbg carb
and a modded pipe. no other mods
interesting
gotta read bigblockfiero now
bye
later, i was thinking as for porting, was aiming the shot of fuel, and raising the timing, then prob. what you said, but one thing at a time.
~SABAT!
just went thru the super stuffy crank thread.
whew
i see what bigblockfiero is doing is trying to add another
transfer to a 2 transfer piston port engine.
if you had a 3rd transfer opposite the exhaust port in my
opinion it would do the same thing he proposes to do with
a 2 transfer cylinder
the jawa slash transfers i see just seems to augment the
2 transfers .
nothing like bigblockfiero is doing.
slash transfer are tame compared to what he*s doing
wish he had better pics
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