I just switched to a Yank SC3000, and I'm loving it!

 

I already have you guys in mind for my next purchase

 

Cirlce-D: whats the difference between the 258mm and the 245mm? thanks for the info, i like your new website.

 

Is your truck your DD? im worried about driveability. I drive my truck only around 20 miles a day to and from work, its my toy for the drag strip a few week ends a year, and i tow a light boat and trailer a few times a year. Thanks for the info!

 

easily, but don't as I peeled the hitch a long time ago. It's a 'tight' converter and drives good. A little more pricey but in line with other billet converters.

With a converter you'll sacrifice some low end usable torque for better shift extension etc. Don't forget a tranny cooler

edit: I drive my truck every day, about 2 hours a day to work, dropping and picking up the wife, grocery shopping you name it.

 

about 13mm

I'm sure that Chris will be able to give you a better answer, but from my experience the 258mm converter will be tighter and not generate as much heat.

 

new i had that coming lol. so the bigger size converter will be tighter and run cooler. is this the actual size of the converter or the parts in it? thanks.

 

Impressive grocery getter you got there. kinda gives me some hope of someday making some good HP with my 5.3

 

I daily drive my truck, and tow frequently. Seems to use a little more fuel around town in stop & go traffic(but also more fun at the same time), and fuel economy on the highway is no change.

Those better shift extensions sure make the gears feel closer together, though. I should take a speedo vid.

 

The 258 and 245 numbers are the diameter of the turbine in the torque converter. The bigger the converter is the lower it will stall, assuming the internal design is similar. The other option to consider is that the more power you put down, the higher the stall will be. So if you put a 245mm in a heavy truck with a big power adder you will have a very loose converter. Now in some cases it might be the be the quickest combination. But because the converter is quite loose, you have heat issues and you need some big coolers, and it is not much of a DD. This is of course a relative term, some guys like a 4000 for a DD and some can not stand a 3000. So it really comes down to what the customer wants. I suggest a 258 for power adders or for a DD where you want it to be very street-able, or the 245 for a guy looking for better performance at the track willing to sacrifice a little on the street.

Chris