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Millennium cylinders?

Started by BigT, April 16, 2020, 03:03:10 PM

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Nastytls

Seems like when you search around 50% say 4.250 is completely fine and 50% that it's a recipe for disaster, with no in between.  :nix: I'd love to try a 4.250 124" w/ worked B2 heads. Should make for a screamer in a Dyna.

turboprop

Quote from: Nastytls on May 05, 2020, 07:28:28 AM
Seems like when you search around 50% say 4.250 is completely fine and 50% that it's a recipe for disaster, with no in between.  :nix: I'd love to try a 4.250 124" w/ worked B2 heads. Should make for a screamer in a Dyna.

Ron Dickey and Dan Baisley set a land speed record at Bonneville using a 4.250" bore x 4" stroke engine with Hurricane heads modified by Baisley on a dyna platform. This engine made over 160 horsepower with a carb (was later converted to injection). Ron rides this bike on the street. I have not ridden it but it looks like a whole bunch of fun.
'We' like this' - Said by the one man operation.

aswracing

Quote from: turboprop on May 05, 2020, 08:21:52 AM
Ron Dickey and Dan Baisley set a land speed record at Bonneville using a 4.250" bore x 4" stroke engine with Hurricane heads modified by Baisley on a dyna platform. This engine made over 160 horsepower with a carb (was later converted to injection). Ron rides this bike on the street. I have not ridden it but it looks like a whole bunch of fun.

On a 4" stroke, you still have some skirt left. It's the 4-5/8 that turns the pistons into disks. If done at a height that fits in the stock chassis anyway. You can always go taller to get some skirt back.

Ask Ron what he thinks of the 131 sometime. Hint: he'd sell you the cylinders, but they'd come with a big warning that there would be no support.


turboprop

Quote from: aswracing on May 06, 2020, 06:30:38 AM
Quote from: turboprop on May 05, 2020, 08:21:52 AM
Ron Dickey and Dan Baisley set a land speed record at Bonneville using a 4.250" bore x 4" stroke engine with Hurricane heads modified by Baisley on a dyna platform. This engine made over 160 horsepower with a carb (was later converted to injection). Ron rides this bike on the street. I have not ridden it but it looks like a whole bunch of fun.

On a 4" stroke, you still have some skirt left. It's the 4-5/8 that turns the pistons into disks. If done at a height that fits in the stock chassis anyway. You can always go taller to get some skirt back.

Ask Ron what he thinks of the 131 sometime. Hint: he'd sell you the cylinders, but they'd come with a big warning that there would be no support.

Ron and I have had many discussions about Millennium cylinders and Brian Nalin. You may recall a few years I was escorted out of the V-Twin Expo while wearing an Axtell badge. Apparently, it is against the show rules for someone to go into another booth, flip the table and put their hands on another vendors throat.

Ron and I have also talked at length about the performance advantages of an over square 114" to that of a typical 124". I have a couple TC124 engines in my FXRs, but have plans to build a 4.250" bore 114. Ron did it using oem harley cases to fit within the class rules, but I will probably use an S&S case with a spread cylinder stud pattern. I also plan to use a set of 8" Carrillo rods that I have laying around and most likely a set of B2s worked over by Dan. I think the longer rods and spread stud pattern will significantly improve the reliability of this engine. Luckily for me, Ron has developed a pretty good package that he is willing to leverage against this project. If I can come to terms with cutting an oem harley FXR frame, I may even go full retard with some stuff from Jessell.
'We' like this' - Said by the one man operation.

Hillside Motorcycle

Planning on a 4", X 4.250" bore, in our shop mule Dyna this coming winter.
Gonna be a fun project. :up:

Otto Knowbetter sez, "Even a fish wouldn't get caught if he kept his mouth shut"

fatbobber

I also had a fair piece of trouble with the millenium's in my Buell S1W , i used the bike for track racing en touring trough Europe.
The first set of 1250 mil. kit failed very fast but they give a warranty set without discussion , after a while those also started to use oil and i called Ron Dickey for advice .
He sold me a set of his own Axtell 1250 nikasil cilinders/pistons for the Buell, they never failed again .
So they can be made to work ,but millenium has not found out how ;-)

John D

Never a dull moment in Cinci with "Ed from Axtell" there!  I'm hungry, lets go!

turboprop

Quote from: Darkhorse on May 21, 2020, 07:50:17 AM
Never a dull moment in Cinci with "Ed from Axtell" there!  I'm hungry, lets go!

I really miss the V-Twin Expo. I hope the industry picks up enough that it makes sense to have that event again.
'We' like this' - Said by the one man operation.

rredneckn2

 :hyst: :agree: :agree:
Quote from: turboprop on May 21, 2020, 08:02:56 AM
Quote from: Darkhorse on May 21, 2020, 07:50:17 AM
Never a dull moment in Cinci with "Ed from Axtell" there!  I'm hungry, lets go!

I really miss the V-Twin Expo. I hope the industry picks up enough that it makes sense to have that event again.
https://harleytechtalk.com/htt/Smileys/default/iagree.gif
If you don't like what I say DONT read it

Coyote

Quote from: Darkhorse on May 21, 2020, 07:50:17 AM
Never a dull moment in Cinci with "Ed from Axtell" there!  I'm hungry, lets go!

Good times.   :up:

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calif phil

Man, those were some good times.  I miss Jim and all the laughs we shared.