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#15 by 8v-of-fury on 17 Dec, 2011 20:52
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3rd gear should be usable from about 55km/h up to whenever you wanted to shift for the application I intend..
HOWEVER
What about a close ratio tranny with a .71 5th in it?
I have an mk1 close ratio 4K (3.94 3.45 2.12 1.44 1.13 0.89) with about 210k kms on it.. it shifted pretty nice when i took it out of the car. How hard is it actually to do a 5th gear swap? Some have done it in car?? It musn't be too difficult eh? I think this transmission with a 5th swap to .71 might actually be perfect..
If you had a motor putting down 150-155ft.lbs at 1900 rpm.. what would you do? I am mostly in town, so i would rarely use the 5th gear..
I almost feel that the wider transmission would better suit it.. to have full potential of that torque down so low.
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#16 by theman53 on 17 Dec, 2011 20:59
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That is a bigger jump than the 4 speed 3rd to 4th, but only by .06.
Me personally I would rather have the 5 speed any code over the 4 speed. Except the 2H code 5 speed. I would rather of had my 4 speed over that p.o. crap. I have never owned the 4K but it is almost the same as the 2H...until 5th all the gears are 500rpm apart. All you do is shift and if it has a wide torque curve you don't need to do that. Your car though.
Broke told me the 5th swap is easier in car as it takes over 140 ft/lbs to loosen some bolts. You have to take the linkage off and put it in 2 gears at once to loosen and tighten it. In the car it holds itself, out of the car you have to find a way to hold the trans in one spot. -
#17 by AudiVWguy on 17 Dec, 2011 23:34
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I just recently did the .71 swap on the AUG that I put in the caddy. I used the how to on BrokeVW.com's site. Good Explanation. You will want to read it a few times. Or maybe it's just my ADD.
I had to make a custom tool. The one with the two little nubs sticking down. If you already have the trans out you can stand it upright, so the rod with the spring on top is harder for it to fall out. Everything went ok for me, just don't be in any hurry.
Also, it's a big jump from 4th to 5th. The engine seems happy so far. Boost on the K-14 is around 6-8 psi at 65-70 mph. EGT's about 650F. Only complaint would be a taller 4th would be nice.
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#18 by R.O.R-2.0 on 18 Dec, 2011 17:53
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1200 rpm jump between 2nd and 3rd though :O How did non turbo 1.6's ever handle this transmission?
Also back to the 1 tire fryer thing.. I swear there is slightly more force keeping both wheels spinning in the later transmissions??
theres conical washers and springs holding the axles centered in the 3rd member.. the 80% kits just shim the springs against the washers really hard, making it almost impossible to turn 1 axle at a time..
the later trannies all had this, but also had the weak rivets, and weak reverse gears. 4A has the conical washers. i believe its the only 4 spd that got them.
THERE IS NO ACTUAL LSD DEVICE IN A VW TRANS UNLESS YOU PUT IT THERE!!
and Jeremy, theres no way your going to be making 150 Ft Lbs @ 1900 without using a TDI w/ a VNT on it.. an IDI just wont do it. you gotta rev an IDI up to make torque and power..
i think you should just try an ACN trans. or are you trying to avoid the 3.67 gears? i actually prefer the 3.67 gears over the 3.94s..
a different trans made my car COME ALIVE once i did the swap. 4th gear was too tall for hills, even when you were building 15 psi..
the GC trans was even better in my opinion, because you could use any gear, on any hill.. it just always seemed like it needed another gear.. (the GC trans is just an F series trans, without 5th gear..)
anyways, there are LOTS of ACN trannies around, and most of them had an easy life, living behind a low power GX 1.8L engine.. the ACN came in 85-88 base model golfs and jettas.. i love my ACN trans. it doesnt have a .71 5th, but it has a .75 5th, and 3.67 final drive.
i believe the difference between .71 & 3.94 was like 100rpms difference over the .75 & 3.67 gears IIRC? -
#19 by theman53 on 18 Dec, 2011 19:30
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The newer trans did not have the 80% kit, they had a 20% IIRC. You can go to broke vw's site and he has it all broke down into the different kits made now.
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#20 by R.O.R-2.0 on 18 Dec, 2011 19:52
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The newer trans did not have the 80% kit, they had a 20% IIRC. You can go to broke vw's site and he has it all broke down into the different kits made now.
none of the trannies ever had a limiting device for slip.. the conical rings are to keep things centered, not to aid traction..
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#21 by 8v-of-fury on 18 Dec, 2011 19:59
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The newer trans did not have the 80% kit, they had a 20% IIRC. You can go to broke vw's site and he has it all broke down into the different kits made now.
none of the trannies ever had a limiting device for slip.. the conical rings are to keep things centered, not to aid traction..
Just because they weren't put there to aid in traction doesn't mean they don't aid in traction..
Nothing = 2.5 - 5 ft-lbs
Factory = 26 - 29 ft-lbs
40% Kit = 77 - 80 ft-lbs
80% Kit = 135 - 140 ft-lbs
So a 1984 4K will then have the factory stock conical rings that add the 26-29 ft-lbs.. and the stronger ring gear rivets? Score. Then I will put the .71 fifth in my 4K
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#22 by 8v-of-fury on 18 Dec, 2011 20:24
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Hell I might even get an 80% kit!
Also KEVIN, yes.. 150 ft-lbs at 1900.
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#23 by R.O.R-2.0 on 18 Dec, 2011 20:36
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Hell I might even get an 80% kit!
Also KEVIN, yes.. 150 ft-lbs at 1900.
mind telling me how you plan to do that?
my engine barely produces boost at 1900 revs, let alone 150 ft lbs..