My Charger has 4.10:1 Strange 60 with spool and a tight 9" converter from Ultimate. The converter is so tight you would think it was a stock 11" converter till you punch the throttle then it flashes to 5,000 rpm. Really don't notice any slippage under normal light throttle driving.
Thats just how my 9.5 dynamic converter works for me. I never notice any slipping or high rpm cruising. At the track when I hit it the flash is right about 4200 what I wanted. Its their 9.5 street/strip converter and I have had in in my 63 since 2006. I can cruise in third at 2000 rpm all day and it sounds normal to me. Its never ran hot or gave any trouble and I drive it alot.
I also do understand how eng noise and rpm can trick people as I remember all the complaints we used to get at the dealer when people said the trans was not shifting into third because of the noise from the fan clutch. And when the fan clutch did come back on it really sounded different even though nothing changed in the eng rpm. Ron
