----- Original Message -----
Sent: Wednesday, March 30, 2005 5:56
AM
Subject: [FlyRotary] Re: under drive
pulleys
Kevin,
Sounds like a really good deal.........Does your
friend hard anodize his
pulleys to minimize wear........Also is his eccentric shaft pulley a
total
replacement like the "Racing Beat" pulley or does it bolt to the
stock
Mazda hub ??
--
Kelly Troyer
Dyke
Delta/13B/RD1C/EC2
--------------
Original message from "kevin lane" <n3773@comcast.net>: --------------
I spoke with a machine shop friend
today about making pulleys. He shows me his Mazda race car with a
400hp PP 13B, which I didn't know he had. He believes that a single
pulley with a deep groove should work fine, and that yes, often one belt
will take out the redundant belt. He runs his engine up to 9800rpm
without belt problems. His pulleys are 5 1/8 on the water pump, 3 1/2
drive, which just about touch. He can make us sets for $110, a bit
more for double pulleys. He has an automatic tool changing mill with
something like 27 tools available on this giant chain. It is way cool
to watch run. Pulleys get made on the lathe however. AL comes in
5 and 5 1/2" sizes, so a 5" pulley may be a better buy than 5 1/8". He
would make the pulleys to order, not as batches, so a 17 or 19mm center hole
is no problem. I wondered how many people were interested in getting
some made. I have not seen any for sale at these prices, although I
may have missed some. I saw some sets as high as $350.