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Author Topic: GTI Track Car - Manual, Wavetrack Diff, Caged, Polycarbs, KO4, DB9 Brakes, METH  (Read 31450 times)

Offline shannon-ob

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Just had chance to weigh the new bell/rotor set up. 9kg, the old 350mm ML disc from the Porsche set up were 12kg each. So a nice saving of 3kg per side.
MY 3 DOOR 370BHP MANUAL GTI TRACK BUILD - WAVETRACK DIFF, CAGED, POLYCARBS, KO4, DB9 BRAKES, METH, BARTEK, VIS, HELIX PADDLE CLUTCH/SMF, FLOCKED DASH, 18X9 PRO RACE

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Offline colesey

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Very nice clean work there and you’ll have another 3kg of unsprung weight savings each side from the alloy hubs and arms.

Offline shannon-ob

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Very nice clean work there and you’ll have another 3kg of unsprung weight savings each side from the alloy hubs and arms.

Exactly that man. I had fitted all that then the Porsche brakes so technically no weight saving at all. But as you say, probably about 6-7kg a side!

MY 3 DOOR 370BHP MANUAL GTI TRACK BUILD - WAVETRACK DIFF, CAGED, POLYCARBS, KO4, DB9 BRAKES, METH, BARTEK, VIS, HELIX PADDLE CLUTCH/SMF, FLOCKED DASH, 18X9 PRO RACE

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Offline colesey

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Add another 3kg from a lighter wheel like TD1.2 to hit almost 10kg per front corner. Huge reduction in unsprung mass.

Offline shannon-ob

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Add another 3kg from a lighter wheel like TD1.2 to hit almost 10kg per front corner. Huge reduction in unsprung mass.
I’d completely forgot about them I’ll have to get it on a weigh bridge when it’s complete


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MY 3 DOOR 370BHP MANUAL GTI TRACK BUILD - WAVETRACK DIFF, CAGED, POLYCARBS, KO4, DB9 BRAKES, METH, BARTEK, VIS, HELIX PADDLE CLUTCH/SMF, FLOCKED DASH, 18X9 PRO RACE

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Offline shannon-ob

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Well, this was far from ideal.

I’ve been prepping the underside ready to underseal.

I always knew that was a little scabby in this area but I did not expect this.

The wheel arch has a lot of like residue rust behind the seam sealer. Which now I’m thinking of removing as much seam sealer as possible and either applying new. Or stitch welding it

Side skirts were holding so much dirt and moisture it’s ended up doing this to the sill. Luckily it’s an easy fix. But sadly has pushed things back 1/2 week(s)

I did feel like throwing the towel in. But I’m way to far into this build to do that.








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Offline Clarkj93

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Ouch... I've noticed some residue under some peeling seam sealer as well lately, sill i think is okay but will probs have a good look now after seeing this. I have been toying with the idea of removing the side skirts all together and the fitting screws as I've seen a few people with same issue as you here. Assuming they don't serve any functional purpose like deflecting crap from getting into places?

Offline shannon-ob

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Ouch... I've noticed some residue under some peeling seam sealer as well lately, sill i think is okay but will probs have a good look now after seeing this. I have been toying with the idea of removing the side skirts all together and the fitting screws as I've seen a few people with same issue as you here. Assuming they don't serve any functional purpose like deflecting crap from getting into places?

Seems to be very common with the skirts just catching all the road grim between the skirt itself and the arch liner. Skirts are only there for cosmetics. I will be running them again once this is repaired and the car is painted. But will most likely not run the arch liner nor will the car be out on sh*tty days.

I'd defo look into it sooner rather than later. At least get the arch liners out and clear the crap out.
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Offline Hypertuned

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In the old days cars didn't have arch liners, only sealant. Somethings were better back then than they are now, IMO.

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Offline shannon-ob

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In the old days cars didn't have arch liners, only sealant. Somethings were better back then than they are now, IMO.

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Not wrong mate. The worst ones are the fabric arch liners. Stupid idea.
MY 3 DOOR 370BHP MANUAL GTI TRACK BUILD - WAVETRACK DIFF, CAGED, POLYCARBS, KO4, DB9 BRAKES, METH, BARTEK, VIS, HELIX PADDLE CLUTCH/SMF, FLOCKED DASH, 18X9 PRO RACE

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Offline Hypertuned

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In the old days cars didn't have arch liners, only sealant. Somethings were better back then than they are now, IMO.

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Not wrong mate. The worst ones are the fabric arch liners. Stupid idea.
You're not wrong there! They soak up water when it rains & help your arches rust quicker.

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Offline shannon-ob

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The arches finally came!














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Offline rich83

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The alloy rear hubs… can you reuse all the MK5 bolts? Or are they different?

Offline pudding

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I've got Scirocco alloy hubs waiting to go on to mine.  As far as I can tell the bolts are the same.  They add 15mm per side extra track though, so if you do go ally rear knuckles, jack the wheel up into the arch as far as it'll go to check for clearance.

You might want to balance the track with ally front knuckles, which add 10mm per side, so evens it out...ish.  Check the tie rod heights before committing to different knuckles though as no one likes a chunky portion of bump steer on their chips.

As for the rust  :grin:  A lot of people are too scared to pull their side skirts and have a dig, but it's only cosmetic.  The core structure is made of burly war bunker grade stuff Hitler would be proud of.
« Last Edit: May 01, 2021, 02:11:33 am by Pudding »


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Offline LC5F

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The arches finally came!



Wow, you will need wide load signs on the road!
Can't remember if you are keeping this road legal(ish)?
The rear arches go a lot higher than the OEM arch, how much metal do you think you will be chopping out?

I've got Scirocco alloy hubs waiting to go on to mine.  As far as I can tell the bolts are the same.

Yes - bolts the same. No - made an arse of that one - bought everything new so must have got lost in there.
Just note that the rocco ABS sensors plug in and work with the Mk5, but physically they are different length - you wont be able to use your old sensors as spares. Hopefully the ones in your hubs are good.


« Last Edit: May 01, 2021, 01:28:03 pm by LC5F »