[Fot] Koni vs Gaz vs Spax - TR6 racecar

[Robert Lang]

 Full disclosure - I use Nylatron for all my bushings except the upper control arms are heims joints (and adjustable). The upper a-arm bushings really get beat and the metal is "just better".
I'm TR6 all the way.
c ya,rml

    On Wednesday, January 31, 2024 at 03:13:19 PM EST, mark <marksnay at aol.com> wrote:  
 
 Delrin is Dupont's trade name for Polyacetel homopolymer resin which is low friction material and has a "slippery" feel to it. I have a Aluminum/Delrin bushing set up in one of my cars, a Delrin sleeve is fit between the aluminum bushing ID and the bolt OD, the supplier recommended use of grease between the surfaces.
Nylotron is a Polyamide 6 or 6/6 resin ("Nylon" is Dupont's trade name for Polyamide) which has molybdenum disulfide powder mixed into the resin when extruded/cast/molded and is supposed to allow use without lubrication.
I cannot vouch for which material would be the better to use as I've not enough experience with either.
Best Regards,
Mark Snay   

    On Wednesday, January 31, 2024 at 02:07:32 PM EST, Robert Lang via Fot <fot at autox.team.net> wrote:  
 
  Hi,
Go with the Koni shocks in front. The SPAX shocks work well, but the gas leaks out and they become "just shocks" and without the gas, they can foam which effects the shock efficiency over the course of a session. Or plan to replace the Spax every two years, plus or minus.

For the rears, unless you converted to a coil over setup and / or tie your shocks to your roll cage GET RID OF THE TUBE SHOCKS. I have seen a lot of problems with the conversion shock setups out there and you risk frame damage running with those shocks. I can write a lot on this topic, but unless you can verify the action of the bump stops AND secure the shocks via rod ends, I will guarantee frame structural failure over time.
So - get a set of stock Armstrong lever shocks for the rear and get nosimport.com (worldwide autoparts in Madison, WI) to rebuild them as adjustable and you get both a workable, reliable setup and it will work without messing up your frame. Unless you do stupid things like I do and bottom the suspension and break the frame, but I digress. I've run the Armstong adjustables for a long time and they work great. With a little tuning, you can get rid of the rear squat when you tromp on it, Makes the car handle completely differently.
Delrin is a trademark, I believe - the material is the same as Nylatron. You can verify by looking at the durometer ratings.

Regards,Bob Lang

    On Wednesday, January 31, 2024 at 01:24:07 PM EST, Mark Cook via Fot <fot at autox.team.net> wrote:  
 
 
Quick question (maybe?).   I am replacing the existing Koni front adjustable shocks (PN 80-1784).  Bushings are worn out as likely are the shocks. Same with the rear adjustable SPAX shocks on my ’69 TR6 racecar.  I am more familiar with Bilstein, Koni and MCS.  

  

Any preference?  Spax and Gaz are unknown to me, but the external adjuster is appealing compared to having to remove the Koni’s every time I need to adjust the suspension.

  

Using the “while I am in there” approach, I will be replacing all the front/rear suspension bushings.  Have purchased Nylatron bushings.  Cannot find Delrin products for TR6.

  

Thanks,

  

Mark Cook
_______________________________________________
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
Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/robertlangtr6@yahoo.com


  _______________________________________________
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
Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/marksnay@aol.com


    
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/fot/attachments/20240131/5a231a33/attachment.htm>