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> Trans upgrade?, What are some good trans swaps?
Pdr1787
post Nov 26 2013, 06:33 PM
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Builing a 2.0l cammed port and polished with some dellortos. maybe thinking of a small turbo too but i have a tail shifter trans. I want to definitely replace it with something that will give me some smooth crisp shifts. any ideas? side shift, 930/915? (IMG:style_emoticons/default/type.gif)
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brant
post Nov 30 2013, 10:01 AM
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my version of similar:



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hot_shoe914
post Nov 30 2013, 10:39 AM
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All you need is a stock side shift done right. My LE will shift with any of these others. Evil has driven it. (IMG:style_emoticons/default/first.gif)
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brant
post Nov 30 2013, 01:09 PM
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QUOTE(hot_shoe914 @ Nov 30 2013, 09:39 AM) *

All you need is a stock side shift done right.


a rebuilt trans with new bushings isn't bad and will shift well.

of course an AJRS shifter (or rennshifter) with delrin bushings, brass bushings, apex bushings, an extended cup, and double supported shift console on the back only makes shifting better.
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Eric_Shea
post Dec 1 2013, 07:54 PM
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(IMG:style_emoticons/default/agree.gif) Bill and Chris and Andy will probably agree as well. Those linkage mods down below are flat out amazing. I didn't have many "off statute" modifications done to my car but this is by far one if the best I did.
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Dr Evil
post Dec 1 2013, 07:58 PM
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I have 0 experience with these mods, but I am interested (IMG:style_emoticons/default/smile.gif) Some trustworthy and knowledgeable folks recommending them makes me feel confident that they are worth it. I think I will have to try it on mine.......when Scotty finishes with the body stuff. (IMG:style_emoticons/default/rolleyes.gif) (IMG:style_emoticons/default/poke.gif)
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Eric_Shea
post Dec 1 2013, 08:10 PM
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You've got a ton of time to research! (IMG:style_emoticons/default/biggrin.gif)
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jaxdream
post Dec 5 2013, 10:59 PM
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QUOTE(brant @ Nov 30 2013, 08:01 AM) *

my version of similar:



Brant , does the extended cup aid in the motion , as in increasing the effect at the console lever ?? You have a well executed mod (IMG:style_emoticons/default/piratenanner.gif) , just curious about the cup extention, is it a " feelable " effect ??

Jack
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Dr Evil
post Dec 5 2013, 11:55 PM
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QUOTE(Eric_Shea @ Dec 1 2013, 09:10 PM) *

You've got a ton of time to research! (IMG:style_emoticons/default/biggrin.gif)

Har har (IMG:style_emoticons/default/tongue.gif)

I do wish I did. I hope I have something similar to tweak with and obsess over when I am your age. You know, old.
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brant
post Dec 6 2013, 08:51 AM
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QUOTE(jaxdream @ Dec 5 2013, 09:59 PM) *

QUOTE(brant @ Nov 30 2013, 08:01 AM) *

my version of similar:



Brant , does the extended cup aid in the motion , as in increasing the effect at the console lever ?? You have a well executed mod (IMG:style_emoticons/default/piratenanner.gif) , just curious about the cup extention, is it a " feelable " effect ??

Jack


When the shift rod twists at the rear console, the cup bushing extends out of the cup until a third of its surface is unsupported. We did this mod along with multiple others at the same time.
(Version 1 of our shift rod had a brass bushing'd stock knuckle joint turned 90 degrees)

The upgrades made an improvement in shifting but multiple things were changed at once and all helped. I can't say how much if that was due to the cup alone.
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ChrisFoley
post Dec 6 2013, 10:11 AM
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QUOTE(brant @ Dec 6 2013, 09:51 AM) *

When the shift rod twists at the rear console, the cup bushing extends out of the cup until a third of its surface is unsupported.

That's because the cast piece you're using isn't the shift rod head for a sideshift trans.
Its the tailshift rod head that goes under the shift lever in the cockpit.
The two look identical but the tailshifter part is shorter.
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brant
post Dec 6 2013, 10:16 AM
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QUOTE(Racer Chris @ Dec 6 2013, 09:11 AM) *

QUOTE(brant @ Dec 6 2013, 09:51 AM) *

When the shift rod twists at the rear console, the cup bushing extends out of the cup until a third of its surface is unsupported.

That's because the cast piece you're using isn't the shift rod head for a sideshift trans.
Its the tailshift rod head that goes under the shift lever in the cockpit.
The two look identical but the tailshifter part is shorter.



I will check on that and appreciate the tip
but I don't think I used the wrong one.
we had this piece from a side shift car

but good to check
do you know the stock length of an unmodified SS cup?
our modified piece is longer than any SS cup stock
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ChrisFoley
post Dec 6 2013, 10:51 AM
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The way I know about this is that I used a tailshift piece once without realizing it and had trouble at the track.
I destroyed a couple of cup bushings before I discovered that the bushing was coming partway out of the bore.
I had to find a suitable extension and weld it on at the track to successfully finish the weekend.
Here's a measurement of the stock sideshift piece.
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