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Author Topic: T56 Conversion  (Read 9206 times)

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Offline wspohn

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Re: T56 Conversion
« Reply #50 on: April 03, 2017, 11:01:00 AM »
Oops, I meant the AZ6 (which was in non-V CTSs), but the main thing I'd be considering is shift quality. T-56 doesn't feel as nice as an AR5 or a lot of other transmissions, regardless of the car it's in.

The stock AR5 is no shining example of good shifting transmissions!  Compared to others, it is notchy and sometimes a bit balky.  I have old British boxes that I can shift like silk with a couple of fingers, with gear splits about 1400 rpm apart at 7,000 that are a delight (too bad that they have crappy synchro durability).

I haven't driven anything with the successor to the T-56, the TR-6060, so can't comment, although they continue in having a 5 speed with the 5th gear being a normal OD ratio and then tack on a super long (and therefor irrelevant to performance) 6th OD ratio.  Wish they'd do what other cars (including a BMW I own) do and have the 6th as a normal OD (0.7-0.8) ratio and the rest of the gears closer together with 5th being the 1:1 instead of 4th.

Looked up the 6060 and it appears that they spent considerable effort to make sure the synchro action was durable - nothing I saw spoke to how smoothly it shifts.  Maybe someone that has driven one can comment.
1958 MGA Twincam (race car)
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1965 Jensen CV8,
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Offline Dave@DDMworks

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Re: T56 Conversion
« Reply #51 on: April 03, 2017, 11:42:37 AM »
The 6060's are a much nicer transmission when you drive them compared to the T56. We switched over to the 6060's with the V8 conversions we did and driving one compared to the T56 ones was definitely noticeable. There are a lot of nice touches on the 6060 other than the synchro's and if you can do it, highly recommend it over the T56.
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Offline slab8

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Re: T56 Conversion
« Reply #52 on: April 03, 2017, 09:41:59 PM »
The stock AR5 is no shining example of good shifting transmissions!  Compared to others, it is notchy and sometimes a bit balky.  I have old British boxes that I can shift like silk with a couple of fingers, with gear splits about 1400 rpm apart at 7,000 that are a delight (too bad that they have crappy synchro durability).

Compared to the T-56, the AR5 is fantastic (aside from the ratios.) And that's not just in a Solstice, that's in cars that originally came with a T-56.

Haven't driven a TR-6060 to compare, so no comment on that.

 

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