Modified F20c Engine Builder UK
Registered User
Joined: Oct 2011
Posts: 133
Likes: 20
From: Bromsgrove
Thats not strictly true - old fashioned pot pistons in 2618 with huge expansion rates with lots of clearance to the bore might knock, but modern slipper pistons in a properly machined bore don't knock.
OP - I build these engines for a living and work closely with Clockwise Motion (who are absolutely the best in the business) so If you need any help drop me a line.
OP - I build these engines for a living and work closely with Clockwise Motion (who are absolutely the best in the business) so If you need any help drop me a line.
Thread Starter
Joined: Nov 2005
Posts: 4,132
Likes: 171
From: Bristol
Thats not strictly true - old fashioned pot pistons in 2618 with huge expansion rates with lots of clearance to the bore might knock, but modern slipper pistons in a properly machined bore don't knock.
OP - I build these engines for a living and work closely with Clockwise Motion (who are absolutely the best in the business) so If you need any help drop me a line.
OP - I build these engines for a living and work closely with Clockwise Motion (who are absolutely the best in the business) so If you need any help drop me a line.
Joined: Mar 2004
Posts: 23,315
Likes: 835
From: Nottingham
Time warp.. some old old ****ers on this thread
https://www.s2ki.com/forums/uk-irela...-s2000-141597/
I have a little road trip to do, but given the weather will take the BEV
Joined: May 2014
Posts: 1,257
Likes: 110
From: Reading
Thats not strictly true - old fashioned pot pistons in 2618 with huge expansion rates with lots of clearance to the bore might knock, but modern slipper pistons in a properly machined bore don't knock.
OP - I build these engines for a living and work closely with Clockwise Motion (who are absolutely the best in the business) so If you need any help drop me a line.
OP - I build these engines for a living and work closely with Clockwise Motion (who are absolutely the best in the business) so If you need any help drop me a line.
Joined: Sep 2007
Posts: 3,205
Likes: 45
From: Bournemouth
Joined: Apr 2009
Posts: 1,513
Likes: 119
I wonder if that engine will ever get past just a pipe dream render, never seem to see any of it bar renders from years ago and nothing else.
And I do know someone that tried similar years ago and couldn't get it reliable - crank bearings end up too narrow to last...
And I do know someone that tried similar years ago and couldn't get it reliable - crank bearings end up too narrow to last...
Thread Starter
Joined: Nov 2005
Posts: 4,132
Likes: 171
From: Bristol
Well, I've been having zero fun with any engine builders via email all summer, so I think I'll try some phone calls when I'm back off holiday. Meanwhile, Tegiwa has 3 brand new, fully assembled F20c blocks for sale, which is becoming increasingly tempting, given the lack of response from any engine builders.
I'd probably rebuild my head with new valve guides, springs, some aftermarket cams (or do that to another 2nd hand head and keep my engine whole for selling). Add some ITBs and scavenging midpipe and call it a day. Little bit of power, great noise, and a lifetime of miles left in it.
I'd probably rebuild my head with new valve guides, springs, some aftermarket cams (or do that to another 2nd hand head and keep my engine whole for selling). Add some ITBs and scavenging midpipe and call it a day. Little bit of power, great noise, and a lifetime of miles left in it.
Joined: Mar 2004
Posts: 23,315
Likes: 835
From: Nottingham
Tegiwa also have this
https://www.tegiwaimports.com/bourne...0l-engine.html
I'm sure I am ruinous for your mental health but in a friendly way
https://www.tegiwaimports.com/bourne...0l-engine.html
I'm sure I am ruinous for your mental health but in a friendly way
