[Fot] pop up pistons for the TR2-4 engine ? RE: TR3 Race pistons and liners

[Jim Gray]

Either a catastrophic, nonlinear mechanical exasperation or a sudden un scheduled disassembly.

jg

From: Fot <fot-bounces at autox.team.net> On Behalf Of Don Marshall via Fot
Sent: Tuesday, November 9, 2021 1:21 PM
To: yellow04 at tr4racer.com
Cc: Friends of Triumph <fot at autox.team.net>
Subject: Re: [Fot] pop up pistons for the TR2-4 engine ? RE: TR3 Race pistons and liners

 

 

On Tue, Nov 9, 2021, 12:26 PM Henry Frye via Fot <fot at autox.team.net <mailto:fot at autox.team.net> > wrote:

A heck of a lot of races have been won by wet-liner TR's running pop-up 
pistons. And I'll bet none of them ever had a head collapse.

Just sayin'...

On 2021-11-09 11:44, Alexandre Camoletti via Fot wrote:
> Gents,
> 
> I recall, but I may be mistaken, that Kas wrote in one of his books
> that he had experimented pop up pistons but because of the specific
> shape of the TR2-4 combustion chambers the pop up design was
> detrimental to the propagation of the flame front and actually this
> was offsetting the compression gain, so he abandoned this route to
> remain on the traditional milling one (with thin steel headgasket,
> which can make quite an additional difference).
_______________________________________________
fot at autox.team.net <mailto:fot at autox.team.net> 

http://www.fot-racing.com

Donate: http://www.team.net/donate.html
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot <http://www.team.net/pipermail/fotUnsubscribe/Manage> 
Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/dmar823@gmail.com



-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/fot/attachments/20211109/8a577978/attachment-0003.htm>