6 speed conversion kit

john.jackson9213

Top Post Dawg
Joined
Mar 14, 2007
Location
Miramar, Ca. (Think Top Gun)
TDI
1996 B4V
Still waiting on mine..................

Who is doing your installation?

Do you have good fuel consumption numbers for before the change over? That will be interesting to see.

But the transmission now feels really great in every day use for me. The old gap I had with my .622 5th gear is gone. The .71 5th and the .588 6th just fit like a dream, I shift as low as 2000 rpm in each gear and the engine drops to 1500 rpm in the next gear. Just like clockwork. Use a higher shift point and each gear change drops down to the same rpm. Wonderful spacing.

The true 75 mph at 2000 rpm is also great.
 

Windex

Top Post Dawg
Joined
Apr 1, 2006
Location
Cambridge
TDI
05 B5V 01E FRF
Who is doing your installation?

Do you have good fuel consumption numbers for before the change over? That will be interesting to see.

But the transmission now feels really great in every day use for me. The old gap I had with my .622 5th gear is gone. The .71 5th and the .588 6th just fit like a dream, I shift as low as 2000 rpm in each gear and the engine drops to 1500 rpm in the next gear. Just like clockwork. Use a higher shift point and each gear change drops down to the same rpm. Wonderful spacing.

The true 75 mph at 2000 rpm is also great.
Do you have any updated fuel economy numbers with the new 6th?
 

jcboulware

Veteran Member
Joined
May 27, 2007
Location
Florida
TDI
2004 Jetta TDI Wagon 6-speed
I am. I have a clutch coming up so I am going to do it at the same time. I have tracked fuel consumption and mpg for the past 120k miles, so I have good data to compare the new gear.

I just finished timing belt, water pump, egr & cooler delete, intake cleaning, and stage 1.5 Malone tune. I was hoping to do clutch and gearbox at the same time, but no joy.
 

MikeMars

Veteran Member
Joined
Mar 6, 2008
Location
UK
TDI
Vento 1.9 TDi (retired), A4 1.9 TDi (rear end collision), VW Passat 1.9 TDi (retired), Audi A2 1.4 TDi
Mike,

How long did it take your shop to do the swap?

Just got back a few minutes ago :)

It went well, we did the 'laproscopic' method of doing the upgrade without having to drop the gearbox. It was very fiddly & took a while, but I think some of that was just due to the learning curve. I was charged for 4h labour (it was actually more, but he excluded the trial-and-error time :)).

The 5th gear was a 0.709 which surprised me a bit (I thought it would probably be the stock 0.75), but I think they must have decided that a 0.588 needed to be balanced with a slightly higher 5th.

I took loads of pictures & some video, so I will write it up into an installation report.

I am seeing the following in 6th ... 60mph = 1650 rpm, 70mph = 2000 rpm (compared to 60=2200rpm with my old 5th, so a drop of 550 rpm for cruising). The cruise control also still works. I can accelerate up hills in 6th (although it's happier if it is dropped down to 5th).
 
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MikeMars

Veteran Member
Joined
Mar 6, 2008
Location
UK
TDI
Vento 1.9 TDi (retired), A4 1.9 TDi (rear end collision), VW Passat 1.9 TDi (retired), Audi A2 1.4 TDi
Mike,

What size is your engine? 1400 cc?? Do you know what the car weighs? 550 rpm drop at 60 mph is huge - a 25% drop at the same speed. You should see some fuel savings indeed.

1400 cc, yes, remapped up to 103hp. The car weighs around 1100kg including the various options.

If I calculate the RPMs by hand then I get 1724 as the final, so I think my numbers might be a little out somewhere.
 

spartan

Veteran Member
Joined
Aug 25, 2011
Location
MI
TDI
05 Passat Wagon
I am. I have a clutch coming up so I am going to do it at the same time. I have tracked fuel consumption and mpg for the past 120k miles, so I have good data to compare the new gear.

I just finished timing belt, water pump, egr & cooler delete, intake cleaning, and stage 1.5 Malone tune. I was hoping to do clutch and gearbox at the same time, but no joy.
I will be interested to hear if you can use your cruise control in 6th gear after the conversion.
 

The Shootist

Veteran Member
Joined
Aug 21, 2006
Location
Hixson, TN
TDI
2002 New Beetle GLS TDI
Has anyone considered a chain cutter instead of the angle grinder to cut the shift bar? No sparks, no dust, just two quick snips?
 

EuroTuning

Vendor , w/Business number
Joined
Jan 8, 2012
Location
Czech Republic
TDI
2,0TDI
Has anyone considered a chain cutter instead of the angle grinder to cut the shift bar? No sparks, no dust, just two quick snips?
Yes, it is also possible without sparks but you have to have a very big chain cutter, we have good experience with the size 36", length of the holder is 28 inch. When cutting, the one handle is leaned against earth, and you can then operate the other – if necessary – with the entire mass of your body. During this operation, it is necessary to make sure/check that the shift rail is not leaned against the gears and it cannot damage them while cutting, when the force developed has to be relatively high.

 

TonyJetta

Top Post Dawg
Joined
Sep 15, 2005
Location
Tucson, Az
TDI
'15 Jetta TDI SE / '06 Jetta TDI DSG Pkg0 / '96 Passat TDI
Matt,
You might be better off posting in the private for sale section.

Tony
 

MikeMars

Veteran Member
Joined
Mar 6, 2008
Location
UK
TDI
Vento 1.9 TDi (retired), A4 1.9 TDi (rear end collision), VW Passat 1.9 TDi (retired), Audi A2 1.4 TDi
First full tank after the 0.588 6th gearbox upgrade - 86.4(!!) mpg imperial, was averaging 77.1 mpg imperial (a 12% improvement). That's more than I had predicted, but it has to be noted that it's not a representative tank due to the 100 mile trip back from Stealth.
 

Windex

Top Post Dawg
Joined
Apr 1, 2006
Location
Cambridge
TDI
05 B5V 01E FRF
First full tank after the 0.588 6th gearbox upgrade - 86.4(!!) mpg imperial, was averaging 77.1 mpg imperial (a 12% improvement). That's more than I had predicted, but it has to be noted that it's not a representative tank due to the 100 mile trip back from Stealth.
The nice thing is that you have a long history of fuel consumption on your fuelly. give it a few tankfuls and it will really start to show (with the same driving) the difference that the additional gear makes.
 

john.jackson9213

Top Post Dawg
Joined
Mar 14, 2007
Location
Miramar, Ca. (Think Top Gun)
TDI
1996 B4V
First full tank after the 0.588 6th gearbox upgrade - 86.4(!!) mpg imperial, was averaging 77.1 mpg imperial (a 12% improvement). That's more than I had predicted, but it has to be noted that it's not a representative tank due to the 100 mile trip back from Stealth.
Mike,
Very nice improvement. Waiting to see what you do on a couple of regular tanks.

I am home for the weekend, back to Texas for another 2 weeks. So still no full tank numbers to report.
 

MikeMars

Veteran Member
Joined
Mar 6, 2008
Location
UK
TDI
Vento 1.9 TDi (retired), A4 1.9 TDi (rear end collision), VW Passat 1.9 TDi (retired), Audi A2 1.4 TDi
Trouble in paradise - suddenly having difficulty shifting into a lot of the gears this morning (particularly 3/4/5/6, 1 and 2 don't seem to be quite as bad).

I think the clutch is OK because the revs drop as normal when the clutch pedal is depressed. The difficulty seems to come and go ... for a while it is impossible to select a gear, need to match revs & if I'm lucky it goes in. The odd thing is that I might then be able to shift into all the gears without any problem shortly afterwards. But then if I try again later I have difficulties again.

Anyone have any ideas?
 

MikeMars

Veteran Member
Joined
Mar 6, 2008
Location
UK
TDI
Vento 1.9 TDi (retired), A4 1.9 TDi (rear end collision), VW Passat 1.9 TDi (retired), Audi A2 1.4 TDi
Weird ... drove 2 hours 45 min up to Stealth, including 1.5 hours in stop/go traffic (i.e., loads of gear changes)... it was all working fine!!! Not one stuck gear. So different to this morning where the last half of the trip was a constant struggle to find a gear which would let me engage it. So whatever the problem is, it's intermittent.
 

G60ING

Top Post Dawg
Joined
Aug 5, 2001
Location
MD
TDI
No TDIs Currently, I have an R36 Corrado. I've had an ALH Corrado swap, AHU Corrado swap and 2003 TDI Jetta
Have somebody hold the shift knob solid(still) and go under the hood and try to move the shift cane ends. Maybe the bushings in the shiftbox are on their way out.
 

john.jackson9213

Top Post Dawg
Joined
Mar 14, 2007
Location
Miramar, Ca. (Think Top Gun)
TDI
1996 B4V
Who is next for delivery off this kit? Jcboulware mrdave ,newtdi?

Looks like I will be working in Texas for the rest of July. Thinking about driving back next weekend instead of flying. 20 hours driving vs5-6 hours to fly and rental car. Would be a good drive to check mpg.
 

MikeMars

Veteran Member
Joined
Mar 6, 2008
Location
UK
TDI
Vento 1.9 TDi (retired), A4 1.9 TDi (rear end collision), VW Passat 1.9 TDi (retired), Audi A2 1.4 TDi
Guys, when it is being assembled make sure the following is OK:

Radim said:
... Important is axial play on gear wheels 5 and 6. The first thing you need to check ... is play in axial direction. It must be 0.2-0.3 mm. ...
Axial float = also called end-float.

As long as this float is fine then you should avoid the problem I had.
 
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jcboulware

Veteran Member
Joined
May 27, 2007
Location
Florida
TDI
2004 Jetta TDI Wagon 6-speed
MINE WAS DELIVERED TODAY!!! Looking forward to starting the install.

Mike, "axial float" or "end float," is this also the same as "end play"; i.e the amount of movement between the gear's when pulled or pushed down the center shaft. How is this properly measured according to Radim? Feeler gauge stuck between 4th, 5th and 6th gear while gently pully outwards?
 
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