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Need bigger triple cylinders!!
Last post 06-18-2008 12:13 PM by Juggernaut. 6 replies.
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06-16-2008 2:40 AM
Offline DWHalverson
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Joined on 09-12-2006
Posts 24

Need bigger triple cylinders!!

I know I can bore the re-sleeved 809 out to a 975, but heard better luck just boreing to 925 on the larger sleeves. My question is, with the exeption of the aftermarket cylinders, are there any stock Rotax cylinders that would "bolt" on the triple case for going to a larger bore? I know most of the older bigger bore cylinders were RV engines and all the new ones are cylinder reed, but I'm just curious if anyone else has thought of it or tryed it. I just like the idea of a 670 rod on the stock triple stroked crank and bigger pistons.
06-16-2008 10:07 AM In reply to
Online KBK
Top 200 Contributor
Joined on 07-27-2005
Posts 196

Re: Need bigger triple cylinders!!

I know Dan Hull of A&S racing had a pro stock 1000 with a machZ case and three 670 cylinders.Don't know how hard it was to fit them to it but it can be done.
06-16-2008 10:25 AM In reply to
Offline DWHalverson
Not Ranked
Joined on 09-12-2006
Posts 24

Re: Need bigger triple cylinders!!

 Sounds very interesting!! Do you have any contact info for him?

 

 KBK wrote:
I know Dan Hull of A&S racing had a pro stock 1000 with a machZ case and three 670 cylinders.Don't know how hard it was to fit them to it but it can be done.
06-17-2008 10:08 AM In reply to
Online KBK
Top 200 Contributor
Joined on 07-27-2005
Posts 196

Re: Need bigger triple cylinders!!

Ask for Dan Hull's number on the racing forum.Someone will have it. He is in lansing MI
06-17-2008 4:34 PM In reply to
Offline ski-doo ps1000
Top 200 Contributor
Joined on 10-22-2006
Posts 207

Re: Need bigger triple cylinders!!

dan solds that motor to ron mcburney  i know dave at stealyh performance built one like that also i think he still has it   dave  stealth performance  715 479 3540
06-18-2008 9:40 AM In reply to
Online KBK
Top 200 Contributor
Joined on 07-27-2005
Posts 196

Re: Need bigger triple cylinders!!

Dave at stealth is a great guy to work with i'd give him a call.
06-18-2008 12:13 PM In reply to
Offline Juggernaut
Top 100 Contributor
Joined on 02-28-2007
Posts 345

Re: Need bigger triple cylinders!!

  Splitt second performance builds these motors and they work very well. Jaimie Hogg from out west runs one of these units on his o/m 1000 and it is very fast.
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