Tranny Problem sorted (not the gay kind of tranny btw)

[s3079893]

Hey,

Today I just bought a brand new Tremec TR3650 5 speed manual. The gearbox is rated at 360 lbft so it should handel my target 350-400hp. The gearbox is the one found in the BA ford falcon xr8 (which has a 290kw version i think)(it's an aussie car btw). It has the same input spline as the T5 and pretty much bolts right up to the 5L with minor modifications. The box cost me only $900AUD from a ford dealership, i am F@#$$ happy with it.

[rudypoochris]

How are the synchros on that thing, particularly first. How hight does 1st go to, and can you get in first at say 25mph with just the synchro? Im intrested in this transmission, as I have a t-5 and might want something a little stronger.

[s3079893]

I dont kow about the how easy it is to shift with it cause i have just bought it and im a long way from driving it.

I've read reviews on the gearbox saying it is easy to shift with. 1st gear ratio is 3.38 so depending on your diff and wheel size will give you how fast it goes in 1st. On my car the diff ratio is 3.9 ( i think) and radius of rear tire is about .31m so at say about 6000rpm: ((6000*2pi/60)/(3.38*3.9))*.31= 14.77 m/s =53 km/h = 33mph

 

with my setup and a rev limit of 6000rpm:

1st: 53 km/h

2nd: 90km/h

3rd: 136 km/h

4th: 180km/h

5th: 264 km/h

 

also the input spline is identical to the T5 box, and the bell housing (at least on the ba falcon version) will pretty much bolt straight up to the back of the winsor (mine is the from 1991), the center line of the crank and input spline is perfect. Also the relse bearing and slave cylinder is already built in on the input spline(handy). the only thing i have to realy change is cut a hole on the bell housing for the starter to fit through.