well are you locking it or leaving it unlocked? I'm surprised you're spooling a 66mm with a 12" 2800 stall. Trans Brake? IMO around 5% slippage should be managable with the newer converters but Dusty could chime in.
That's a pretty good gain and is about all you can expect from a converter like that. A 10" converter will pick up even less.
That's a pretty good gain and is about all you can expect from a converter like that. A 10" converter will pick up even less.
A 10" will pick up less? With a TE60 it ave 24.88 MPH from the 1/8 to 1/4. I'm not 100% its a converter issue. What do you recommend?
I'm suprised you can spool a T66 with a 12" converter. Looking at your data......good spool, less than 120 to the 1/4 but good 60's and et, I'd say your data looks like a 2800-3200 stall 10" unlocked. If your spooling a 66mm with a true 12", the converter is most likely the problem. To get a 12" to stall enough to spool a 66mm would mean it's got some awkward fin angle and should definately see the slip go up as power increases.
Once you get so much stall in these type converters, the more power you put to them, the more slip you will see unless you can turn more rpm to keep the converter coupled. The exception to this rule is the multi-disc, 9x11 and my 9.5 non lock. All of these are capable of slipping under 5% at the low rpm range.
not bad times with that # boost i ran a 11.64 with a stock unopened engine with a TE-60 on short 275/50's.... what size tires you got ?