02a/O2A Gearing/Gear ratios, $Prices$, and other helpful hints

[fightthisfeeling]

quick question, im putting an obdII 12v VR6 into a bug, and was wondering if i should stay stock on the ratios or make them taller since it is sooo much lighter than my jetta

[G60ING]

the Jetta VR6 you have listed in your profile has a 3.3 R&P and its would be tough to get a 3.15 for a reasonable price. I'd suggest you get the VRBug running first and then reconsider the gearing after its together.

You will have one hell of a build keep the drivetrain simple until its on the road

[fightthisfeeling]

i want to drive it though man! I know it needs gears it maxes out at like 74 lol

[G60ING]

So you are not using a Vr6 transmission you are using the aircooled Beetle's transmission

I have no idea what to tell you as I do not have the gear ratios for the Beetle.

If I were you I'd find out what gears ratios are in your transmission. Find out what size tires you plan to run and then use a gear calculator and compare the beetle's tires/ratios/speeds/RPMS to the Jetta's CCM tires/Ratios/speeds/RPMS

[fightthisfeeling]

Yes im using the bugs transaxle which is why im asking if i should replace with taller gears since its only a 4 spd and doesnt have an overdrive. im running stock 15 inch wheels, and with the engine and driver will weigh roughly 2000lbs. the engine for now will have an autotech 262 cam, new lifters, timing chain kit, intake, and exhaust and a giac chip. link to my buildup if interested

http://www.thesamba.com/vw/for...95379

Modified by fightthisfeeling at 10:35 AM 5-14-2008

[G60ING]

You need to do the research on your own to find the Bug's gear ratios. I've never played with aircooled so I can't help you. There are enough links in the first post to get you started with a gear calculator (requires the tire's outer diameter for which I have provided a link to a tire calculator) I've also provided the gear ratios of the Mk3's VR6 transmission. Its up to you to find out what the gears are in transmission you want to bolt a VR6 to.

[G60ING]

Quote, originally posted by fightthisfeeling »

im running stock 15 inch wheels, and with the engine and driver will weigh roughly 2000lbs. the engine for now will have an autotech 262 cam, new lifters, timing chain kit, intake, and exhaust and a giac chip.

These items do not play a role in gear limited top speed. I am intrigued by your swap and wish your best of luck in your quest to building it.

[fightthisfeeling]

CCM====3.300=1.944=1.308=1.034=0.838=3.389==VR6 Passat, Jetta, Golf

comparitively, looks like 1st and 2nd will need changing, thinking i could possibly get away with stock 3rd, and 4th is better tall so it wont be completely worthless on the highway. Id like the stock VR6 1st and second from my jetta cause they pulled hard and nice and the stock tire diameter is very very close to the bug.

\


Modified by fightthisfeeling at 2:01 PM 5-14-2008

[G60ING]

You really need to plug all the numbers in an excel gear calculator and you will see that there is a major gear issue with your final drives. The FD, 4th/5th gear and tire size determine what your gear limited top speed will be.

[fightthisfeeling]

i tried, None of the links work man there is an error on the page. Ill do it all just need to know how to get there

[haygood]

Try the calculator at http://www.scirocco.org/gears

[G60ING]

Wow, they took down the excel spread sheet. If needed I can email it to you. I like it because I've modified the spread sheet so I can show multiple gear combinations.

here is the new gear calculator:
http://www.merkurtech.com/merk...h.php

here is a tire calculator:
http://www.merkurtech.com/merk...g.php

[UrSeRiOuS]

thank you

[VAG_Lowrider]

Quote, originally posted by fightthisfeeling »

CCM====3.300=1.944=1.308=1.034=0.838=3.389==VR6 Passat, Jetta, Golf comparitively, looks like 1st and 2nd will need changing, thinking i could possibly get away with stock 3rd, and 4th is better tall so it wont be completely worthless on the highway. Id like the stock VR6 1st and second from my jetta cause they pulled hard and nice and the stock tire diameter is very very close to the bug. \Modified by fightthisfeeling at 2:01 PM 5-14-2008

For my mk1 I have used an 02A AFF from Passat TD(probably euro trans only) with a CCM ring and pinion..
This AFF trans has got higher 1-3 gears than the CCM,and the next 4/5 gear is lower than CCM..
Here you have the gear specs for comparision:
And this is the calculated speeds for my bunny

AFF 02A(From an 1991 PAssat 1.6TD)

1st Z=34/9=3,77:1 64.37 km/t
2nd Z=40/19=2,105:1 114.26km/t
3rd Z=39/29=1,344:1 178.64km/t
4th Z=34/35=0,971:1 247.84km/t
5th Z=35/44=0,795:1 302.56km/t

CCM 02A(VR6 Golf)

1st Z=33/10=3,300:1 72.42km/t
2nd Z=35/18=1,944:1 123.92km/t
3rd Z=34/26=1,307:1 185.07km/t
4th Z=30/29=1,034:1 233.35km/t
5th Z=31/37=0,837:1 288.07km/t

Modified by VAG_Lowrider at 2:55 PM 11-26-2008

[rob1puma]

hi there m8, just wondered how u got on fitting the diff in the ctn box, im on wid fitting 1 now and yes there is the problem of the flanges not being able to bolt in2 diff but is in not possible just to get sum push in flanges 2 make it work? if this is possible please let me know as the ratios in this box look pretty gud. cheers rob

[2925]

is there a way to see which of the three g60 gearings I have in my corrado?

Somethings like rpm to gear equals speed?

[G60ING]

Bump for an old thread that i've just found again.

[Gigitt]

My Golf Mk3 (A3) 1996 TDI 90HP 1Z engine has the following 02A gearbox

ASD Code
1st z33/10 3.3000
2nd z35/18 1.9444
3rd z34/26 1.3076
4th z36/33 1.0909
5th z33/46 0.7173
Final z60/19 3.1578

[redjetta914]

i have a 2.0 8v stock motor with a t3/t4 turbo on 8lbs. which tranny is best for the turbo setup since the 020 wont support the boost?

[gameron]

[vwgolfracer26]

Does anyone know if 02j gears are stronger than 02a gears? Specifically EWW(02j) vs. CCM(02a) Thanks.

[TBT-Syncro]

iirc o2j has stronger gears, but 02a has stronger syncros.

[vwgolfracer26]

Thanks. I appreciate it.

[Rheinland Technik]

The gearsare the same between the two transmissions, so there will be no added strength in 02J gears over 02A.

[TBT-Syncro]

The gearsare the same between the two transmissions, so there will be no added strength in 02J gears over 02A.

they're interchangable, but are you sure they're the same? You POSITIVE that the engagement teeth for the syncros is the same ? Are you sure that the 02a and early 02j didnt have larger teeth on the engagement syncros, and the later 02j had finer teeth.

[Rheinland Technik]

For the time that Ihave been inside of the 02A and 02J transmissions, I have not seen a difference in the gears or syncros having finer teeth. I just rebuilt an ATA [which is as early as you can get] using an '02 02J trans. The syncros still have the same teeth count, but there are differences as the years progressed.

[B3VW Hasan]

So the gear calculator tells me that if i take my 93 passat TD coded agc, and take out the 3.9 final drive. Then replace it with a final drive from a 16v gas trany that has 3.6 final drive. I will have lower rpms at 100 km/h?

How hard is it to swap the final drive on my agc?

Hasan

[G60ING]

Yes and it all depends upon you knowledge level of transmissions and your special tool collection. This is not a simple job for most. Just install the whole 3.6 ata transmission and swap out the 5th gear it's a lot easier.

[Mosh,MyAntiDrug]

ive been searching around and reading up on here
ive driven a few swapped vr's mated with a G60 trans with a short shifter that threw me back in the seat while chirping the front tires.

what im looking to do/find out:

is it better to just get a rebuilt G60 trans and put a short shifter kit on it

or

am i better off swapping gears around such as : G60, VR6 and TDI transmissions to get a ton more play. Money is not an issue

this will be mated to a built ABA/1.8 hydro head motor

thanks in advance

[G60ING]

Eurospecsport.com aka overland parts has a G60 transmission for roughly $1,200. I would suggest you buy one of those and swap in an LSD