i just hate how converters are so damn expensive

 

MM is just the diameter of the converter. 258mm is a 10" converter. STR is Stall Torque Ratio (the multiplier for engine torque at the transmission input shaft).

 

ohhhh... so the TT3000 is just a little less effecient?

 

No, the TT3000 should be more efficient throughout most, if not all, of the RPM range. It would still not run as well as the PT converters though, due to it having less shift extension and less of a hit off the line.

 

so you might say with a pt 3k you can gain .6 instead of tt 3k gain of .5? Is that what your saying. The tt would be more efficient for street use, but the pt would be better for racing applications?

 

First, I doubt you'd see .5 as an average ET loss with the TT3000. Three tenths would be more realistic. I would imagine the TT3000 would be .35 loss, and the PT3000 would be .5 as an average. With the PT3400 might be as good as a .6-.7 second loss in ET. For street use, the only difference you would notice would be the PT line would be slightly looser. But it will still outpull the TT line on the street with the extra shift extension. It might not make as much power unlocked on the dyno, but the extra RPMs it pulls on the shifts makes up for that.

Edit: I am not counting the TT3200 in the above statements. The TT3200 should be an even better converter, but it can only tow 4000 lbs.

 

FWIW ... I gained about .7 with a TT3000 and a shift kit, no computer mods at all.

 

I've heard claims of gains like that, but the norm seems to be on the lower end of the spectrum. Even Yank claims that the TT3000 converters only really make a big difference on the launch.

Do you know the raceweight, weather conditions, track conditions, and Atap info for both runs? I'd be interested to see how they compare.

 

Nope, nope, better than before, and nope .. lots of help there, but I know it was a matter of hooking up at the line.

60ft times before were 2.33, 2.39, 2.38, 2.31

After 2.07, 2.15, 2.04

My best ET for the before was 15.19 and after is 14.35 So actually ... that's a .85 ET reduction from the TT3000 and a shiftkit. Traction wasn't as much of an issue on the before runs.

 

LOL no way you are gonna be able to tow 7000lbs in a 10" converter! That thing will be toast via heat buildup! Hahahaa. Sorry. But that's more along the lines of a 4500lbs capacity IMO.

They are probably just a hi-energy internal clutch or a carbon fiber base. Despite these havin a clutch apply area equal to or greater than the stock converter I don't see anyway you can tow that much like they say and not kill the converter and trans. Towing creates LOTS of heat in the converter espically when of a higher stall.

If you plan to tow...just go with that TT3000. It's ~11" and should be able to dissipate the heat a lot easier.

My 2¢