6-speed MKIV in a MKIII

[lewis15498]

sound familiar?

Yeah it does sound familiar...
[video=youtube;FLe92V68tPM]http://www.youtube.com/watch?v=FLe92V68tPM[/video]

 

[Keros]

If you really think it would cost that much.... your out of your mind,

In all seriousness, yes. A V161 costs anywhere from $3000-5000, depending on who you get it from and what condition it's in. A clutch, single plate, will run you $600 or if you want big power and smooth drivability (because you're going to be shifting ALOT), will be $1800-2500 for a twin disk clutch. You'll regret a heavy-duty pressure plate on a single disk clutch real fast if you don't do something in order to get a less than 3.300:1 rear end. Or you'll have a sprinter's left leg or beg for death in stop and go traffic. Your call...

So basically you've got a transmission and spent almost half the budget to do it on the low side. You still need to do custom machining on a flywheel to make it fit and you need to make an adaptor to get the V161 to mate to the 7M. Remember that the V161 doesn't have a removable bellhousing, so it will likely need to be a bolt-on affair. Go ahead and cut off the front face of the bellhousing and weld something on... but if it fails or doesn't work, the trans is junk. You're committed %100 at that point.

I've no idea how much you'll spend getting that done, maybe $1000 if you don't/can't do it yourself. CNC machining isn't cheap to make an adapter, but I'm sure the flywheel affair will be pretty reasonable. A pilot bearing is $12, I bet. If you're the type that carries a vertical mill around like a leatherman and has a welder in their truck, I'm sure it's a pretty simple peice to make cheaply though. A good fabricator with the right tools could do it easily and not have the trans bake itself or the main bearings blow up because the shafts weren't flawlessly centered when the two were mated together. I'm sure blowing up the trans and/or the engine would not be inline with keeping below an $8000 budget.

Don't forget to make a transmission mount too.

Custom driveshaft is probably $600. So using as conservative numbers as I can, that's $5212 likely spent. Now we take the rule of 1.5, because everything costs %50 more than you expect once you get everything apart and try to accomplish something, especially if few people have ever done it before... and call it $7818. Ask anyone who has done "experimental projects", the rule of 1.5 is science. Stuff doesn't fit, wrong parts, broken parts, shipping costs... the list goes on.

And you STILL haven't dealt with the swimming gears problem. Go ahead and chart speed vs gear ratios with the R154 and the V161, with an 3.737:1 rear end ratio... It would SUCK. You'd tire pretty quickly of that malarky and want to change that. But what do you do? You hacked the bellhousing of the trans, so no one wants it anymore... so all you can do is swap the subframes or live with it.

Woo, fun.

I'm sure someone will cut you a set of ring gears for a 3.22 gear set in a MkIII pumpkin, but you'll WTFBBQ that $8000 budget pretty damn fast doing that...

I've no doubt someone could slap a V160 into a MkIII for way cheaper than my $8000 figure. What I was saying is that if you did, it would be BALLS to drive. I was talking about if someone wanted to make it awesome, it would take $8000 atleast. If you do as I ask and chart the gear/speed relationship, you'll see that you're likely to skip over 3rd and go from 2nd to 4th to save a shift, as that the ratios are so close together. So why even bother?




P.s. It's "you're", as a contraction of "you are", out of my mind.

 

[madsupra88]

In all seriousness, yes. A V161 costs anywhere from $3000-5000, depending on who you get it from and what condition it's in. A clutch, single plate, will run you $600 or if you want big power and smooth drivability (because you're going to be shifting ALOT), will be $1800-2500 for a twin disk clutch. You'll regret a heavy-duty pressure plate on a single disk clutch real fast if you don't do something in order to get a less than 3.300:1 rear end. Or you'll have a sprinter's left leg or beg for death in stop and go traffic. Your call...

So basically you've got a transmission and spent almost half the budget to do it on the low side. You still need to do custom machining on a flywheel to make it fit and you need to make an adaptor to get the V161 to mate to the 7M. Remember that the V161 doesn't have a removable bellhousing, so it will likely need to be a bolt-on affair. Go ahead and cut off the front face of the bellhousing and weld something on... but if it fails or doesn't work, the trans is junk. You're committed %100 at that point.

I've no idea how much you'll spend getting that done, maybe $1000 if you don't/can't do it yourself. CNC machining isn't cheap to make an adapter, but I'm sure the flywheel affair will be pretty reasonable. A pilot bearing is $12, I bet. If you're the type that carries a vertical mill around like a leatherman and has a welder in their truck, I'm sure it's a pretty simple peice to make cheaply though. A good fabricator with the right tools could do it easily and not have the trans bake itself or the main bearings blow up because the shafts weren't flawlessly centered when the two were mated together. I'm sure blowing up the trans and/or the engine would not be inline with keeping below an $8000 budget.

Don't forget to make a transmission mount too.

Custom driveshaft is probably $600. So using as conservative numbers as I can, that's $5212 likely spent. Now we take the rule of 1.5, because everything costs %50 more than you expect once you get everything apart and try to accomplish something, especially if few people have ever done it before... and call it $7818. Ask anyone who has done "experimental projects", the rule of 1.5 is science. Stuff doesn't fit, wrong parts, broken parts, shipping costs... the list goes on.

And you STILL haven't dealt with the swimming gears problem. Go ahead and chart speed vs gear ratios with the R154 and the V161, with an 3.737:1 rear end ratio... It would SUCK. You'd tire pretty quickly of that malarky and want to change that. But what do you do? You hacked the bellhousing of the trans, so no one wants it anymore... so all you can do is swap the subframes or live with it.

Woo, fun.

I'm sure someone will cut you a set of ring gears for a 3.22 gear set in a MkIII pumpkin, but you'll WTFBBQ that $8000 budget pretty damn fast doing that...

I've no doubt someone could slap a V160 into a MkIII for way cheaper than my $8000 figure. What I was saying is that if you did, it would be BALLS to drive. I was talking about if someone wanted to make it awesome, it would take $8000 atleast. If you do as I ask and chart the gear/speed relationship, you'll see that you're likely to skip over 3rd and go from 2nd to 4th to save a shift, as that the ratios are so close together. So why even bother?




P.s. It's "you're", as a contraction of "you are", out of my mind.

You make a valid point BUT..

V161 you can pick them up for $3000 all day if not cheaper.
3/4" adapter plate would run you $300-350 allowing you to keep the bell housing
driveshaft would cost $350 MAX to make
trans mount no more than $150
3/4" flywheel adapter that bolts to 7m and have a stock flywheel on there $100

Then go ahead n choose which ever clutch you want to use.

You just gotta know what to do and who you get your work through thats all im saying.

P.S correcting me on my grammar sure affects working on cars

 

[adampecush]

There's a guy in Edmonton, Alberta that did the V161 swap into a MkIII with a 2JZ. His opinion of the finished product is that it's a novelty and was totally not worth the money he spent doing it

.

He regrets not going T56.​

Who was this?​

 

[Keros]

Who was this?

A friend of Glenn's. Glenn and I had a conversation about him years ago, however I do not know if the fellow is even still around Edmonton. I think a local shop did the swap for him but apparently the car is a 2JZ-GTE, not a 7M.

You make a valid point BUT..

V161 you can pick them up for $3000 all day if not cheaper.
3/4" adapter plate would run you $300-350 allowing you to keep the bell housing
driveshaft would cost $350 MAX to make
trans mount no more than $150
3/4" flywheel adapter that bolts to 7m and have a stock flywheel on there $100

Then go ahead n choose which ever clutch you want to use.

You just gotta know what to do and who you get your work through thats all im saying.

P.S correcting me on my grammar sure affects working on cars

A guy like you who knows how to get stuff done right and where to get it done at for a fair price, is worth their weight in gold... beer, whatever you like. It's real easy to get taken for a ride getting 'custom stuff' done.