Mk7 Golf GTI Discussion Thread

[irossiter]

I'm all for having fun, as I do in my 67 Cooper S. You quickly learn how to handle FWD powerful cars. My first car was a Nissan Pulsar ET Turbo (not the EXA!) and it torque steered all over the road, in the dry or the wet no stupid axle tramping though. In the modern age they have managed to dial out most of the torque steer from the GTI and have an effective traction control but it should not be at the expense of ?causing axle tramping. I might try turning off the traction control to see if it lessens tramping in the same conditions. It's just so damn ugly and ruins a near perfect car.

[giveway]

Can't say I had any major issues in the SA VWW cruise last Sunday which featured a few sections of sharp, undulating, cambered and damp corners. I'm running the original 18s on OZ rims.

I was followed by a PP on stock 19s - pigdog - be interesting to see how he went if he reads this.

I Only ever get tramp in a straight line. Never in a tight turn or sweeping corner thankfully.

I've owned and driven many fwd cars from my mums 1985 1L 3 cyl charade to my GTI PP and the only cars to axle tramp were my mkv and mk7 GTI's.
My mates astra turbo didn't do it A friends Megan doesn't do it, my bosses GTA Alfa with the V6 didn't do it. My Polo GTI didn't do it much.

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[samps]

Axle tramp or wheel hop in a GTI is caused by the tyres momentarily losing traction then suddenly gripping. As it grips, the wheel stops or slows right down but the engine continues delivering huge torque, causing the suspension bushes and engine mounts to flex - everything tries to keep rotating and as a result it "winds up" or twists. The wheel bounces off the deck and starts spinning again, everything unwinds and suddenly there's grip. This generally continues in a feedback loop until you ease off the throttle.

I have a theory that the TCS system makes it worse by cutting ignition during wheel hop as soon as wheel spin is detected. There is less power behind the wheel when spark is cut, causing instant grip when it is forced back down again. You can test this by doing a hard launch from the same spot, with and without TCS. I get less wheel hop and lots more smoke with it off.

I'd suggest solid or Nolathane engine mounts and bushes would help the situation but your NVH will suffer.

Just remember that wheel hop is very bad for your CV joints, gearbox and clutch. You're shortening the life of those parts whenever it happens!

[Dutch77]

I Only ever get tramp in a straight line. Never in a tight turn or sweeping corner thankfully.

Yeah, I worded my response poorly - I should have said in driving out of such corners I had only one or two occasions where I got a small amount of tramp.

I suppose having previously owned a stage 2 Mk6 I am used to easing on the throttle on a spirited drive. I have a little mechanical sympathy and tend not to just stomp the accelerator from nil or low speed (not suggesting anyone here mistreats their cars though!).

Agree with samps little summary too.

[2browndogs]

So my GTI PP has just on 4000km and is 6ish weeks old. A couple of issues.

1). I scratch a wheel. Grrr to me.
2). Someone decided to touch park using my rear bumper. Grrr to them.
3). The axle tramp, aka wheel hop, is driving me nuts even with traction control on. Grrr to VW

Re problem 3. Anyone with a GTI with 18's experience this as well?

I've tried higher pressures, lower pressures, comfort , normal, sports and it is the same result in wet or dry.

It may just be the Dunlop's, it may be the 19's, it may be sydney roads, but I can't believe that they thought this level of axle tramp was acceptable. Just in drive an comfort mode it will tramp before the TC kicks in.

I'm tempted to try the torque arm insert, but concerned they could use that as a reason to void a warranty claim on engine or DSG.

If 18" s are better, I may go down that route with some PS3's or PSS's

Any thoughts on the 18's or the insert and warranty?



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I also get plenty of axle tramp on my stock Mk7 GTI - in varying speeds and conditions.

[OilBurna]

My passat tdi does it however wife's Volvo v40 t5 doesn't it seems to allow more wheel spin before the Tc kicks in

[pigdog]

Just picked up my gti pp with the APR Stage I tune, first one in the state to have it . Seriously recommended!

[samps]

Does the APR tune for the GTI PP result in more power than the standard Mk7 GTI tune?

[Matt P]

Just picked up my gti pp with the APR Stage I tune, first one in the state to have it . Seriously recommended!

Drastically different to drive in traffic situations? This is a bit of a worry of mine

[pigdog]

Can't say I had any major issues in the SA VWW cruise last Sunday which featured a few sections of sharp, undulating, cambered and damp corners. I'm running the original 18s on OZ rims.

I was followed by a PP on stock 19s - pigdog - be interesting to see how he went if he reads this.

Overall, the car performed excellently, didnt get much axle hop except in one corner. I came into the corner too hot but it was easily corrected. Dont know if this is attributed to the 19" or the electronic differential. The diff after all is designed to vector the torque to the wheel with the most grip.

Drastically different to drive in traffic situations? This is a bit of a worry of mine

It is different but very easy to get used to and control. The biggest noticeable difference is the low rpm torque, only need to touch the accelerator to get to speed. We've driven it in highway speed & stop/start traffic, I would not let this concern you one little bit. It is brilliant!!

Does the APR tune for the GTI PP result in more power than the standard Mk7 GTI tune?

Ive spoken to APR in Sydney this morning, they have mapped both Standard GTI and PP. They are both identical according to APR. You'll also end up at 235kw with a standard GTI.