tremec T-56 vs T600

[Excaliber]

Well I wouldn't recommend the 2.29 first gear ratio myself. Thats even higher than a Close Ratio top loader 1st gear ratio and that Top Loader is considered "to high" a gear for most folks.

I had one, drove it for years, it was great on the highway, AFTER you got up to speed, say 60 mph and above. But it's kind of hard to "play with the gears" when second is good for 85 and 3rd to 115 or better. The concept of the high 1st gear was for road racing. You needed the top three gears to be "close" to work the corners. You would rarely if ever use 1st gear. "Playing with the gears" makes perfect sense in a road race car, where your running 85 to 150 mph. Try that on the highway and you won't keep your license long.

I say go with a 2.7-2.8 or so 1st gear ratio, with a .8 over drive. Possibly a .6 IF your running super low rear end ratio. That being the case, then maybe a 2.2 1st gear starts to make sense. What rpm do you expect your cam profile to work well in? There's a LOT to picking out the right gear ratios, it needs some serious thought.


I would think by now the original post/thread starter has already made his decision. I wonder what he eventually ended up with? I went with the TK0-600 myself, from Brent (B2 Motorsports), with a Steeda Tri Ax shifter. WOW, it's WAY better than that close ratio top loader I had. A lot more fun in the lower mph zones.