TRNW-2: question on 6L80 transgo pr valve install

[tranibob at gmail.com]

Steve,

 

Our valve works fine with the balance orifice capsuled blocked off and the drilled hole sending the balance oil to the tip of the valve.

 


 <http://www.transgo.com/> 

Robert Moreau

Technical Sales and Marketing Support Specialist

2621 Merced Avenue El Monte, CA 91733 USA


Calibration | Innovation |Performance

 <https://www.facebook.com/TransGo-600961476956220>   <https://www.instagram.com/transgoshiftkit>   <https://twitter.com/transgoshiftkit>   <https://www.youtube.com/channel/UCg6v9MzFmq7g3fy7-r9PGIg>   <https://www.linkedin.com/company/transgo1/>   

 

 

From: trnw2-bounces at trnw.net <trnw2-bounces at trnw.net> On Behalf Of Steve Everett via trnw2
Sent: Monday, October 6, 2025 11:40 AM
To: Technical Discussion Forum <trnw2 at trnw.net>
Subject: TRNW-2: question on 6L80 transgo pr valve install

 

 Stupid question probably,  but I'm building a 6L80 stock unit that has been built at least twice,  it had a transgo PR valve setup with the boost valve with the blowoff spring and ball,   but the lube capsule near the end of the PR valve has been blocked with the little bb and crossdrilled like you do with the first version Sonnax valve ?  I didn't think you were supposed to run it like that with the Transgo valve ?  the unit failed last time with this setup in it , 

 

  I'm thinking I need to use the Sonnax pr valve, but even the new Sonnax valve doesn't have you plug and drill anymore ? 

 

   I'm used to either using Sonnax's setup,  or Transgo's setup,  I don't like mixing stuff 

 

   Steve

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