Polo GTI gearbox strengthening

[Eddy]

Hoyhoy.

02m lsd are lot more expensive compared to 02j your better off just getting strengthened gears for 02j

Lsd don't really help with putting down power on straight line more on cornering


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I have to say it depends on what sort LSD ya have, the Peloquin was useless coming out of corners, when tracking.
It was doing more harm than good to the gearbox with the inside wheel skipping & dancing like crazing man.
The Little Blue Girl only has the APR KO4 tune, but with the SQS plated diff, me have difficulties spinning the wheels, period.

Eddy had a Peloquin which is pretty similar but reckons his Salisbury is far better and just as unobtrusive in normal driving.
Peter Jones has used both the Peloquin and the Wavetrac in his Kamei track car and reckons the Wavetrac is noticably better.

As Greg stated, me find the plated diff... FAR, FAR BETTER & still UNOBTRUSVIVE for normal driving.
Am I still the only one in Aussie with a plated diff in the 9N3 Pog.
Sorry folks, but if your after the ultimate times ya get ya priorities right.

[VWindahouse]

Cheers Eddy, just what I needed to Sir! Can you please tell me what I need to order from SQS? The one way LSD I assume for an 02J with my appropriate ring gear size. Anything else mate??

Cheers!

[grandturismo]

Polo GTI gearbox strengthening

Anyone gone with the TDI 5th gear or a Wavetrac TBD that can comment?? Or even driven a FWD with a Wavetrac on the track and street?

I have the Wavetrac Differential, VW 02Q 6 spd. manual in my GTI mate. I've found it to be worth every penny. In combination with a single mass flywheel clutch it's strong and a proven win for track, strip and any kind of spirited driving.

[Eddy]

Cheers Eddy, just what I needed to Sir! Can you please tell me what I need to order from SQS? The one way LSD I assume for an 02J with my appropriate ring gear size. Anything else mate??

Cheers!

Hoyhoy.

Anthony, give Guy a call on this one to confirm, I got him to order mine & just as well, because SQS only had the one size ring gear @ the time, so I would have ended up with the wrong one. It cost me extra for them to make another template so now they have the choice of both rings.
One way it is.

[Njay]

Re: Polo GTI gearbox strengthening

Are you going to change the gearset at the same time ant? You could work out a deal with sqs for the LSD and gearset

Hoyhoy.

Anthony, give Guy a call on this one to confirm, I got him to order mine & just as well, because SQS only had the one size ring gear @ the time, so I would have ended up with the wrong one. It cost me extra for them to make another template so now they have the choice of both rings.
One way it is.

I wished I knew about this diff before I bought my quaife



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[VWindahouse]

I have the Wavetrac Differential, VW 02Q 6 spd. manual in my GTI mate. I've found it to be worth every penny. In combination with a single mass flywheel clutch it's strong and a proven win for track, strip and any kind of spirited driving.

Thanks mate, I guess it's going to come down to whether or not the SQS diff needs to be serviced. I know more track orientated clutch type LSD's need regular rebuilding. If it does then the Wavetrac will be the way to go.

Hoyhoy.

Anthony, give Guy a call on this one to confirm, I got him to order mine & just as well, because SQS only had the one size ring gear @ the time, so I would have ended up with the wrong one. It cost me extra for them to make another template so now they have the choice of both rings.
One way it is.

Thanks Eddy, will do mate!

Are you going to change the gearset at the same time ant? You could work out a deal with sqs for the LSD and gearset

I think that's a good idea mate. Would be smart to do it all at once including a Stage 3 clutch from ECS and never have to worry about it again. Except for driveshafts

[kaanage]

Thanks mate, I guess it's going to come down to whether or not the SQS diff needs to be serviced. I know more track orientated clutch type LSD's need regular rebuilding. If it does then the Wavetrac will be the way to go.

This is another thing to check with Guy as in another thread, he stated that the new VWR Salisbury LSDs have carbon fibre clutch plates so they should last for ages, even with daily usage. But from memory, the VWR LSDs are around A$3000 before freight/duty (and was posted when our dollar was much stronger).

BTW I refer to Salisbury rather than clutch or plate LSD as you can easily and quite cheaply get a diff modded to have spring preloaded clutch plates but these are symmetric (so you get increasing entry understeer as you increase the locking) and have limited practical locking limits (else you may as well run a spool). The Salisbury uses ramps to load the clutch plates and these can be made to lock much more strongly under power than on overrun

I'd consider one of the spring loaded clutch pack LSDs for a RWD but not a FWD.

Here's Guy's post - http://www.vwwatercooled.com/forums/...tml#post909966
And you were a participant in that thread, Anthony!!

[VWindahouse]

This is another thing to check with Guy as in another thread, he stated that the new VWR Salisbury LSDs have carbon fibre clutch plates so they should last for ages, even with daily usage. But from memory, the VWR LSDs are around A$3000 before freight/duty (and was posted when our dollar was much stronger).

BTW I refer to Salisbury rather than clutch or plate LSD as you can easily and quite cheaply get a diff modded to have spring preloaded clutch plates but these are symmetric (so you get increasing entry understeer as you increase the locking) and have limited practical locking limits (else you may as well run a spool). The Salisbury uses ramps to load the clutch plates and these can be made to lock much more strongly under power than on overrun

I'd consider one of the spring loaded clutch pack LSDs for a RWD but not a FWD.

Here's Guy's post - http://www.vwwatercooled.com/forums/...tml#post909966
And you were a participant in that thread, Anthony!!

Yeah that thread left me more confused than anything. I want a no fuss option as in guaranteed fitment (no machining) and no periodic maintenance.

So what type is the SQS diff?

[kaanage]

The SQS is a Salisbury but uses metal clutch plates - not sure how many km you get before needing a rebuild if the car will be a daily drive as well as a track toy.

The guaranteed fitment without opening up the gearbox first is something that VW have conspired to deny us .

[VWindahouse]

The SQS is a Salisbury but uses metal clutch plates - not sure how many km you get before needing a rebuild if the car will be a daily drive as well as a track toy.

The guaranteed fitment without opening up the gearbox first is something that VW have conspired to deny us .

Thanks mate, I'll shoot SQS an email and ask. And sorry in regards to my direct fitment comment I mean once I know my ring gear size I want a guarantee the thing will fit with no machining.

BTW I found a nice bit of info on the 02 range of gearboxes

Finding Fifth Gear - VW T4 Forum - VW T5 Forum

It says these are the gearbox codes for the 02R

02R Gearbox Codes
EWT, GGU - 28:40 = 0.700 as per TDI
EWR, GGV, HET - 34:45 = 0.756 as per T4b DCV, DJZ, DQJ, DQL, EVV, EVY

I wonder if there is anything here that can help with ring gear sizes? Although maybe this is what Jmac thoroughly investigated for us a while back?

[VWindahouse]

Yep he did

http://www.vwwatercooled.com/forums/...4mm-73143.html

so there are more gearbox codes for the GTI. HYW etc.

[chez00]

Hey guys and girls,

I know this is an old post but thought it might be worth mentioning for future searches:
Some people have asked about strengthening gears. Some of the technology we use - namely shot peening and ISF/REM - is proven independently by SAE to notably improve the strength of gears. This process can be applied to your factory standard gears or new sets. Some gears are peened from the factory, but very few are ISF/REM treated.

A few other things to consider: don't underestimate a properly shimmed and setup gearbox. Heavy duty bearings can help, as well as using quality oil that maintains films at high temperatures. Heat kills gearboxes because it opens up clearances and allows the gear shafts to separate in the case, leading to catastrophic gear failure. Anything you can do to reduce heat is a good thing - don't paint your transmission case as paint is an insulator. You can get thermal dispersant treatments for cases if you really want to paint them - this is a bake on process and is really only available professionally. Also ISF/REM treating gears lowers friction and thus heat - independent SAE papers have proven a 5*C drop in temperature across the entire torque range of transmissions.