FormulaZ

iTrader: (1)

On the level 4 tranny im ordering from FLT it comes with a corvette servo. Would it be worth it to add the sonnax servo option? Any feedback would be appreciated.

9000th01ss

iTrader: (10)

I'd probably do it, sonnax stuff seems better than even GM parts. Especially the 4th servo.

RevGTO

iTrader: (12)

Talk to FLT. They probably stick with the Corvette servo because there have been issues with the Sonnax 2nd servo causing breakage. It's generally recognized that the Corvette servo is adequate while the Sonnax servo can be overkill.

The fourth servo would be a nice upgrade.

muayyadf1

me too, interested

performabuilt

iTrader: (25)

Its a good upgrade there generally is only risk of damage with the stock band and the anchor breaking off but I am sure they do not use the stock band and I am sure they would not offer it if they thought there would be a problem with it .

PBA

The Sonnax servo has not caused any band breakage as far as I know. The Superior "billet" servo is the one that has "occasionally" caused a 2-4 band breakage problem, but can be solved with the right separator plate feed hole sizes, and the right accumulation. Rick Abare's mid 9 second 1996 Firebird uses the Superior "billet" servo with the Borg Warner Hi-Energy band. He broke the first Borg Warner Hi-Energy band in about 450 passes, and now well over 1,500 passes (on the same band) with no more band breakage. I am not a fan of the "billet" servo, but there occasions where it could work. The Sonnax servo uses the cushion springs, like the Corvette servo, and should not present any problems as far as "band breakage".

FormulaZ

iTrader: (1)

Well after talking with FLT, decided the corvette servos will do well for my application.