[Fot] Spitfire 1300 Piston Rings

[vfracing at aol.com]

Piston ring flutter is a hard to detect phenomenon that will allow a lot of pressure loss into the crankcase.
Rings that are too thin will tend to flutter due to less spring pressure.  The higher the piston speeds as in the wet sleeve TR engine, the more likely flutter is to occur.  
I'm not sure about the Spitfire engine (too lazy to do the math before coffee) but if you choose thin rings such as those used in the Total Seal set up, the more likely you are to get flutter. The Total Seal solution uses two half-height rings with the gap oriented 180 degrees from each other.  IMHO this is asking for flutter.
Having said that, when they work they work well. We used them successfully in a 948 Sprite and a 1.8 liter Integra.
Phil Gott


-----Original Message-----
From: van.mulders.marcel--- via Fot <fot at autox.team.net>
To: ralph hansen <quikrx at yahoo.com>; fot <fot at autox.team.net>
Sent: Fri, Mar 19, 2021 5:05 am
Subject: Re: [Fot] Spitfire 1300 Piston Rings

JE Pistons are owning Pro Seal piston rings and gaskets, and maybe one can buy JE Pistons fitted with this brand of rings. On the Pro Seal website, you can find information about the ring services that JE Pistons is offering.
PS :Total Seal is a misleading name : most of their rings are NOT gapless.Marcel.
Van: "fot" <fot at autox.team.net>
Aan: "Brad Eells" <tr4abrad at gmail.com>, "Enquiries Road, Track" <enquiries at roadandtrack.net.au>
Cc: "fot" <fot at autox.team.net>
Verzonden: Vrijdag 19 maart 2021 03:48:12
Onderwerp: Re: [Fot] Spitfire 1300 Piston Rings

 I always ran Total Seal rings in my Pinto and Celica race engines, never had a failure 
I also used special made teflon buttons to center the wrist pins, again, never an issue from them - clips of any kind can and do fail (had 1 failure)
like so many things we try/do with our engines we all find things that work for us - usually they work for others but, sometimes not
remember the key, "any significantly advanced technology is totally indistinguishable from magic"
Cheers all,Ralph
    On Thursday, March 18, 2021, 09:36:45 PM CDT, Enquiries Road & Track via Fot <fot at autox.team.net> wrote:  
 
 if JE are making pistons, surely they will supply rings???
In general, ring & piston design has improved a lot in recent decades
in most cases, you will head for a nitrided steel top ring, a steel centre ring (possibly filled with something) and a 3-piece segmented oil ring
in many cases, they can now make a perfectly satisfactory top and second ring at or under 1mm in thickness. Generally, the thinner it is, the lower the friction but really thin rings require super careful honing and bed-in
best practise is to not have any slots behind the oil ring, but rather a ring of small holes 
some piston makers have all sorts of clever micro 'tricks" like anti-flutter grooves they machine in the lands between the rings
Whomever supplies the rings will specify the final hone finish required
best practise is to use double "spiro-locks" to retain the gudgeon pin
TerryAustralia

On Fri, Mar 19, 2021 at 9:26 AM Brad Eells via Fot <fot at autox.team.net> wrote:

Hello Amici,
A discussion with my machine shop man led to some thoughts about piston ring selection.
He recommended getting in touch with Total Seal. I of course took a look at their website to discover a mind boggling selection of ring types.
Can any of you share your ring choices?
I will be having JE Pistons make a custom set of forged pistons for me.
I am in need of ring thickness dimensions as well. Should this come from the factory (GT6) pistons I currently have in the car?
Your thoughts are appreciated!
Brad EellsChino CA#72 FP 1969 Triumph Spitfire Mk3#35 DP 1962 Triumph TR41965 Triumph TR4A IRS...for the road!


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