Rebuilt my transmission last night + economy 6th gear!

[Matt@JHM]

Last night we rebuilt a transmission that will be installed in my car soon. Along with the standard rebuilt kit, we installed the larger 6th gear to drop the RPMs by about 550.

Transmission in pieces on bench:



Here's the two parts of the economy 6th gear:



Here is the outside diameter of the stock 6th gear - 3.678":



Here is the outside diameter of the economy 6th gear - 3.925":



And here is a side by side with the economy on the left and stock on the right:



We will have video proof with a MPG difference with this gear.

Can't wait!

[dmott11]

that must have been fun!

[fourings06]

thats awesome, cant wait to see the results

[RolledMySTi]

Looks great. It's crazy how much power you can make out of these cars and still get good mileage if you drive like an old lady.

[StuntManMike]

I wonder how much sixth gear will feel different when rolling into the throttle than the stock gear. although the higher top speed does sound like fun.

I noticed on your site you sell two different aftermarket sixth gears. what gear are you puting in?

[2ndEngineS4]

You make me sick. Screw you both.

[Matt@JHM]

I wonder how much sixth gear will feel different when rolling into the throttle than the stock gear. although the higher top speed does sound like fun.

I noticed on your site you sell two different aftermarket sixth gears. what gear are you puting in?

The biggest one

[Muck_and_Grind]

Thats why Jason wants my car out of there soon

[PinoyS4]

that's my old baby..ran 11.5 with that

[dougyfresh]

You guys have an overdrive 5th gear for us 5spd trans? I should email you for a rebuild quote (syncros and gaskets) w/ an overdrive 5th gear (euro TDI?).


EDIT: nevermind. Just saw the rebuild kit on your site. I'll have to email you on the taller gear.

[S-Power]

Hey I was there to haha

Good seeing you matt, good luck

[Muck_and_Grind]

that backup camera you have is sweet

[infinkc]

cant wait for results.

[AudiA4_20T]

what car is this bigger gear out of?

[Matt@JHM]

Hey I was there to haha

Good seeing you matt, good luck

Good seeing you too, thanks. Sounded like you and your buddy stormed out of the parking lot. Who won? haha

what car is this bigger gear out of?

Some diesel Audi in Germany...

[AudiSportB5S4]

lol that is sick... so will downshifting from 6th to 5th be awkward ? lol. like its gonna be a BIG tap on the gas to rev match that sucker haha

[GramCracker]

We will have video proof with a MPG difference with this gear.

Can't wait!

Did you take a "before" video?

[Tony T]

I need to rebuild my tranny. It is completely fukked!

[S-Power]

Good seeing you too, thanks. Sounded like you and your buddy stormed out of the parking lot. Who won? haha



Some diesel Audi in Germany...

hahaha yeah man, its a nice little road there, you can really test the car out nice. I beat his r32 tho lol, he only has 3 inch exhaust and coils

[Matt@JHM]

that's my old baby..ran 11.5 with that

Dude it looked good inside. Fluid still nice and red, and 1st gear was in good shape. You beat the shit out of it, but you knew how to drive

Did you take a "before" video?

The transmission is not in the car yet. We rebuilt PinoyS4's old tranny and next week we will just swap them.

So yes there will be a before video. Same stretch of road, same speed.

hahaha yeah man, its a nice little road there, you can really test the car out nice. I beat his r32 tho lol, he only has 3 inch exhaust and coils

Right on

[BurnAll4S4]

Some diesel Audi in Germany...

i know the answer to this. do i get a prize or do i blurt it out and spoil it? lol j/k

p.s. - i was thinking about this for a little bit too, looking at the gearing ratio of other o1e trannys offered .

[jaybquick@JHM]

You make me sick. Screw you both.

Like we talked about just have all your paychecks directly deposited into my bank account and I will take really good care of you.

Thats why Jason wants my car out of there soon

DING DING DING. And I got another car being dropped off on Wednesday that needs a trans rebuild as well.

that's my old baby..ran 11.5 with that

It was in darn good shape too. Didn't show signs of much grinding or missed shifts.

You guys have an overdrive 5th gear for us 5spd trans? I should email you for a rebuild quote (syncros and gaskets) w/ an overdrive 5th gear (euro TDI?).


EDIT: nevermind. Just saw the rebuild kit on your site. I'll have to email you on the taller gear.

I know there is something. Email me and I will look into it.

i know the answer to this. do i get a prize or do i blurt it out and spoil it? lol j/k

p.s. - i was thinking about this for a little bit too, looking at the gearing ratio of other o1e trannys offered .

There are a couple that are good to try. We went with the .56 since I felt the .60 wouldn't make enough of a gas mileage difference. Stock is .68 in an S4 and A6 and it is .73 in an Allroad.

Info on the ratios and tooth counts.

STOCK S4 and A6
.68 26/38

.60 24/40

.56 23/41




Here is some info from a chart that I have in my store. From this page --> JHM Higher 6th gear kit.

Once we confirm how well this works we may put together a group buy since we have to get these straight from germany. That would allow us to give everyone a better price.



MPH at that given RPM in 6th gear, based on stock tire size and 4.11 final drive ratio.

RPM .68 (stock) .60(JHM) .56(JHM)
1000 27 30 32
1100 29 33 36
1200 32 36 39
1300 35 39 42
1400 37 42 45
1500 40 45 48
1600 43 48 52
1700 45 51 55
1800 48 54 58
1900 51 57 61
2000 53 60 65
2100 56 63 68
2200 58 66 71
2300 61 69 74
2400 64 72 77
2500 66 75 81
2600 69 78 84
2700 72 81 87
2800 74 84 90
2900 77 87 94
3000 80 90 97
3100 82 93 100
3200 85 96 103
3300 88 99 107
3400 90 102 110
3500 93 105 113
3600 96 108 116
3700 98 111 119
3800 101 114 123
3900 104 117 126
4000 106 121 129
4100 109 124 132
4200 112 127 136
4300 114 130 139
4400 117 133 142
4500 120 136 145
4600 122 139 148
4700 125 142 152
4800 128 145 155
4900 130 148 158
5000 133 151 161
5100 136 154 165
5200 138 157 168
5300 141 160 171
5400 144 163 174
5500 146 166 178
5600 149 169 181
5700 152 172 184
5800 154 175 187
5900 157 178 190
6000 159 181 194
6100 162 184 197
6200 165 187 200
6300 167 190 203
6400 170 193 207
6500 173 196 210
6600 175 199 213
6700 178 202 216
6800 181 205 219
6900 183 208 223
7000 186 211 226
7100 189 214 229

[blmlozz]

capability to do 200 MPH and not even be @ red-line, un-real.

[hans j]

Ohh I have wanted to do something like this in mine! We rebuild a few 01E's at my shop, think there would be a good discount if we buy a few?

[SLC_S4]

Ohh I have wanted to do something like this in mine! We rebuild a few 01E's at my shop, think there would be a good discount if we buy a few?

^Hey Hans, could you PM me with a quote for rebuilding a 6 spd trannie? Mine is good right now, but awhile down the road I'm going to want it rebuilt.

[Matt@JHM]

capability to do 200 MPH and not even be @ red-line, un-real.

Yep...

[jaybquick@JHM]

capability to do 200 MPH and not even be @ red-line, un-real.

If you make enough power to go that fast. I would think you would need at least an aggressive K04 car on race gas to hit 200 mph. I have been 185 on pump gas, however it is exponential regarding the power required to go that extra 15mph, our cars are not that aerodynamic.

Ohh I have wanted to do something like this in mine! We rebuild a few 01E's at my shop, think there would be a good discount if we buy a few?

Shoot me an email at [email protected]

[RenegadeEngr]

Looking forward to the results.....been interested about your 6th gear setups

[jaybquick@JHM]

This is a pic Matt here at JHM sent me tonight from the .56 gear we stuck in his B5 on Wednesday. He hasn't had a chance to do some full tank fill ups and different driving to get a true MPG calculation. But based on his OE MPG estimator on the dash he is seeing from 3 to 8 mpg better depending on speed and load. At 45mph the RPM is around 1500 and it lugs it around fine and can accelerate fine. Plus the MPG estimator says 45+ mpg at that speed if you keep the throttle steady.

Video of shifts from 5th to 6th coming soon.

[AudiSportB5S4]

haha very cool... if i ever have to redo the tranny I may look into this. cool idea. should get a pic of what the gas mileage looks like :)

[jaybquick@JHM]

haha very cool... if i ever have to redo the tranny I may look into this. cool idea. should get a pic of what the gas mileage looks like :)

Yeah but that can be manipulated since it fluctuates, downhill, off throttle etc. So then a big debate and drama fest will begin no matter what it says. We got video before on a certain strip of road with video of the dash and signs. So we will get the same soon with the new gear for a fair comparison. So video is a better guage.

Thanks video coming soon.

[OldYella]

Ill definitely keep this in mind if my tranny goes. I don't know it would be worth pulling for this alone but it would be a good while I'm at it kind of thing. Very cool stuff, keep up the good work!

[nogaroblueaudi]

excited to see the video and eager to join the debate and talk physics

[NogaroWonda00]

capability to do 200 MPH and not even be @ red-line, un-real.

wouldnt you run out of hp before that?
Id definatly be interested in this when I come to that road lol

not trying to thread jack but is our mpg calculator correct after say my AWE kit? mine says im getting 29 for low average and 35 for the high one, it seams like im getting more in the neighborhood of 22 lol

[Matt@JHM]

wouldnt you run out of hp before that?
Id definatly be interested in this when I come to that road lol

not trying to thread jack but is our mpg calculator correct after say my AWE kit? mine says im getting 29 for low average and 35 for the high one, it seams like im getting more in the neighborhood of 22 lol

Yep, has the capability to go over 200mph, but will need a lot of power to get there. Your mpg calculator may be affected by larger injector sizes.

[2ndEngineS4]

Yep, has the capability to go over 200mph, but will need a lot of power to get there. . .

Sounds like a good excuse for stage 3+ . You should trying pitching it to the wifey. .ha ha.

[Matt@JHM]

Sounds like a good excuse for stage 3+ . You should trying pitching it to the wifey. .ha ha.

Yep, as soon as I beat Dan's record

[jaybquick@JHM]

wouldnt you run out of hp before that?
Id definatly be interested in this when I come to that road lol

not trying to thread jack but is our mpg calculator correct after say my AWE kit? mine says im getting 29 for low average and 35 for the high one, it seams like im getting more in the neighborhood of 22 lol

Yup, Matt is correct you will have to make more HP to pull it since wind drag will be massive at those speeds. It would be one hell of a hard running K04 car on race gas to do even 200 mph.

Yeah once you step up to larger injectors and the ECU is tuned for them the MPG calculator will read high due to the new tune having to run the larger injectors with smaller pulse widths.

Unless you go through the trouble in the ECU to recalibrate the MPG estimator for your injectors it will not read right. We have started playing with this but it is a PITA for what it is worth that is why very few tuners have it accurate. Not many people care since even when the car is stock it isn't all that accurate.

[2ndEngineS4]

Yep, as soon as I beat Dan's record

It will never happen. Dan is The 2+ Titan. You should set more realistic goals for yourself.