UUC Evo3 + DSSR + Getrag 260 + M52?

[Drew325is]

Hi all,

I've been searching around, but I haven't come across anyone who's using the UUC evo 3 shifter set up with DSSR (all as found here:Evo shifter) in the M5x powered E30s running Getrag 260 trans. I was thinking about doing this...but then it occured to me that the DSSR, being designed to minimise movement, might not work so well with the twist of the 260 behind an M5x. Does anyone know whether the DSSR is worthwhile or not in the above combination of engine and tranny?

Many thanks!

[BeirBrennerE30]

the dssr kicks ass... the whole evo 3 shifter assembly from UUC is top notch and i love mine. The problem you would have is that you need to bend the dssr for it to work(not gonna happen).

to be honest if you gonna spend that much in a shifter then bite the bullet and spend the extra $300 on a proper transmission!

[Drew325is]

Great to hear the DSSR and Evo3 set up is the goods.

I certainly hear you on using the different transmission. The main reasons for not going to a later transmission is the cost of sourcing the later tranny, a tail shaft, and either another LSD or having my LSD rebuilt with a more appropriate ratio...here in Australia (everything is a lot more expensive to do here...like $1000+ for a later tranny). My getrag 260 is also the close ratio sport version (non-dogleg) which I think will be nice to hang on to.

I guess, hypothetically speaking, if I was utterly determined to use the DSSR+Evo3, I could fabricate a new bracket [# 8] for holding the shifting arm [#1] that accounts for the role in the tranny and keeps #1 and the DSSR parallel. I'd then re-engineer the selector to account for the role.

[gregslow318i]

not to tread hijack but I am using the trany out of a 93 325is which I believe is a 260( about 99.9% sure) just wondering what shifter should I use part #1 in above diagram and and how should I mount the rear brace into my E30
thanks

[fazio8118]

I guess, hypothetically speaking, if I was utterly determined to use the DSSR+Evo3, I could fabricate a new bracket [# 8] for holding the shifting arm [#1] that accounts for the role in the tranny and keeps #1 and the DSSR parallel. I'd then re-engineer the selector to account for the role.

#8 is not the problem as it is round rubber piece w/ a whole in the center. Since the shrifter is a ball in socket, it doesn't matter how the carrier #1 is rotated. The problem is the #13 can not spin on the selector shaft of the trans, thus causing #10 (or the DSSR) to rotate with the trans. To make the shifter not sit at an angle, you have to twist #10.

[PiercedE30]

I grabbed a spare selector rod (#10) and cut it in half and cut an inch out of it. Then I threaded the inside of it with a 12x1.5 tap. Thread it into one side and tack weld it on that side, then you can throw a nut on there and then thread the other piece of the selector rod and thread it on behind the nut. Then you can tighten the nut against the selector rod and lock it down once the shifter is centered. Then pull it out and tack weld the nut and the selector rod, then finish up the welding and you're done.

[Teaguer]

not to tread hijack but I am using the trany out of a 93 325is which I believe is a 260( about 99.9% sure) just wondering what shifter should I use part #1 in above diagram and and how should I mount the rear brace into my E30
thanks

Your trans would be the non-M ZF (250 ?)

Typically you will have to use the carrier (#1) that originally was meant for the trans you are using .


Fazio is right on what needs to happen ....and not being able to bend the UUC DSSR is what BeirBrenner mentioned earlier .

Seems easy enough to fab or modify your own DSSR though .

[Teaguer]

Pierced , what you did is what many of us have done in the past and is pretty straightforward ...but its no DSSR . ;)

[mazur]

So what's getting in the way of the DSSR on the Getrag trannies?

The DSSR does have a notch cut out so it clears the guibo with a ZF tranny.

[Teaguer]

So what's getting in the way of the DSSR on the Getrag trannies?
The DSSR does have a notch cut out so it clears the guibo with a ZF tranny.

It needs to be twisted the 10deg just like the stock linkage would have to be so it can have a civil lever placement to macth the 10deg the Getrag is tilted with 24v .

[Drew325is]

#8 is not the problem as it is round rubber piece w/ a whole in the center. Since the shrifter is a ball in socket, it doesn't matter how the carrier #1 is rotated. The problem is the #13 can not spin on the selector shaft of the trans, thus causing #10 (or the DSSR) to rotate with the trans. To make the shifter not sit at an angle, you have to twist #10.

I know what you're saying...but the change to #8 is to do something different...it's just hard to explain in words. Maybe this works as a better explanation:

Take a getrag 260 and fit an evo3 and DSSR with the tranny out of the car. Fit the whole lot back into an E30 that does NOT have #8 fitted to the underbody. Now tilt the tranny 10o for the m50. Now becuase of the DSSR being fitted, the shaft end of #1 will have a new natural position...a new #8 should be made that holds #1 in that new position. Now, the problem this creates is that the shifter will have also rotated 10o. To fix this, and still maintain the linkage geometry as dictated by the DSSR the shifter would have to be modified above the ball.

Here's a crappy diagram (pretend you're looking at the back of the tranny and shift linkage from the tailshaft):



On the left: a getrag 260 (grey) fitted with an Evo3 (orange) and DSSR (red at the bottom of the evo3), all mounted up behind an M20...therefore no roll in the tranny. The red "X" identifies the OEM position of #8.

On the right: this time the tranny has rolled 10o, and the green "X" is the new #8 position. By doing this there is no need for the DSSR to bend.

Does that make sense? At least that what's going on in my head...could easily have it wrong, hence asking :)

[Teaguer]

With that approach you will end up with an even worse case of this :



So the offset lever will bring it back to where you can use it .
Not the approach I would take but yes it will work out .


Sounds kinda like the "fix" Carroll Shelby did by utilizing the Mustangs lever backwards in the Cobra .

Would be waay less grief just to have your own custom DSSR made up or even modify a stock one .

[Drew325is]

A picture tells a thousand words...I figured it'd be tight...but that's very tight!

[Drew325is]

So I think I've been talked out of bothering with a DSSR...so is the evo 3 on it's own a decent combo with the M52 and G260?