Golf R Observations and Questions

[SilvrFoxX]

With ya Corey, though you have to admit a stock XR5 taking a modded R this way is hard to swallow

[Corey_R]

Well, I'd hardly say that it's "taking" anything It's just that Big_Dave isn't able to use the benefits of the R to overtake the XR5... catch, but then not overtake....

[Large Fruit]

You'll find that answered in the tuning forum, but Stage 2 isn't about huge increases in peak power over stage 1, it's about optimising what you have and widening the torque and power bands.

But directly related to the R vs XR5, it's been shown again and again that the R's advantage is in the 0 to xKm runs and not around necessarily around a track (at least in the dry). In rolling acceleration, a GTI with the same power runs away...

Thanks Corey.

Perhaps it was the perspective the video? As silverfox said, it's a tad hard to swallow that a stage 2 R can barely keep up with a stock XR5

[Ryan_R]

I always thought the XR5 competed against the GTI, and the RS Focus was compared to the Golf R. I once followed an XR5 down the Reefton Spur and had no problems keeping up (different conditions, driver, and all that jazz, though).

[Corey_R]

Thanks Corey.

Perhaps it was the perspective the video? As silverfox said, it's a tad hard to swallow that a stage 2 R can barely keep up with a stock XR5

At the same time we've got other members who have been overtaking Porsche 911's and Ferrari F430's etc.
Does this by extension make a stock XR5 quicker than a Ferrari F430? Of course not.....
There are lots of variables in these things, and no one knows truly what they except for the driver of each of those cars (and even then, they might not be aware of all the variables )

[PTW]

Given a can't see the vid, was he close by coming onto the straight? Maybe ran a **** line out of the last turn onto the straight as well losing speed overall. Curious to know top speed before turn 1 as well Big Dave, if you managed to read it?

Haven't looked in the tuning section yet but I guess a Stage 2 is ~200kwatw?

[Ideo]

At the same time we've got other members who have been overtaking Porsche 911's and Ferrari F430's etc.
Does this by extension make a stock XR5 quicker than a Ferrari F430? Of course not.....
There are lots of variables in these things, and no one knows truly what they except for the driver of each of those cars (and even then, they might not be aware of all the variables )

Yep. Too many variables to really call.

XR5 driver may nailed the last corner and got it perfect whereas Dave may have been baulked by a slower car etc etc

[Guy_H]

I passed an XR5 (modified) on my bicycle at QR - mind you I got a better run out of turn six than he did & I slip-streamed & stuck it up the inside of him on turn one

[adzy]

Lets forget 1/4 times due to AWD grip compared to FWD lack of.

Stock XR5's do 93 - 95MPH
Stage 2 Golf R's do 101 - 103MPH

correct?

[dave_r]

Stage 2 Golf R's do 101 - 103MPH

And stock/stage 1's do around 98-100mph?

Last week at Sandown, Fab (who ran 106mph?) would pull away from me on the straights and that was with him not going really hard given I was able to get back near him under brakes and cornering.

If an XR5 is nearly 10mph down on a stage 2 R, something is wrong....or maybe it's accurate and the product is more marketing fluff than substance.....

[CSR]

Well, I'd hardly say that it's "taking" anything It's just that Big_Dave isn't able to use the benefits of the R to overtake the XR5... catch, but then not overtake....

Bull****. Car should be zipping past the xr5 on the straight no worries.

[PTW]

A couple of questions then.

What is different between the GTi motor & the R donk? I see the compression is slightly more and heard something about a steel timing chain??? Is the bottom end the same?

Also has anyone been able to log the torque split with the haldex unit thru various situations? I read somewhere it can split up to 100% rear which is good Pity there is no manual overide to lock in what you want, but anyway...What ratio is straight line for instance at a constant 100km for example.

Also regarding oil changes has anyone bothered to do a 6 monthly change themselves?

Cheers Paul

[h100vw]

It's all to the front if there's no slip detected/no output from the stability control, that's how I understand it.

Gavin

EDIT
Not quite zero to the rear. Cut from the Wiki:


The XWD system can transmit 100 percent of available torque to either the front or rear wheels. However, for those conditions to occur one end of the vehicle would have to lose all traction, like driving on ice for instance. During a standing start the rear wheels are put to use, without the need for any slip to occur. Then under straight-line cruising conditions, to conserve fuel and driveline wear, the torque split to the rear wheels is reduced to a level between 5 and 10 percent. Also up to 85 percent of torque can be transferred by the eLSD between to any single rear wheel if necessary. The system can adjust torque splits based on calculated conditions, such as those that indicate an aggressive lane change manoeuvre, to effectively reduce oversteer or understeer without any wheel slip occurring. In the event that some wheel slip does actually get to occur, the system can react more timely and efficiently than in the past. ^[6]

[PTW]

So it's a SAAB XWD unit then ???

[h100vw]

Haldex Traction - Wikipedia, the free encyclopedia

Have read of the whole wiki. SAAB had first dibs on it for the first year.

Gavin


Gavin