Quaife Diff by VWR....

[RedRobin]

Awesome to hear Robin ! looking forward to read your review on how the car feels !!

out of intrest how much were the bearings ?

Also is this a VWR qauife Diff or the same qauife diff ?

....Haven't tested them enough yet for a meaningful review - But so far, so very good!!

....Dunno bearings costs.

....It's a Quaife diff modified to VWR's design and manufactured by Quaife exclusively for VWR.

[RedRobin]

Also my understanding is that VWR don't believe that the aftermarket fuel pumps are a good idea in the long term. Various experts can sometimes tell you quite different things and it's sometimes difficult to know who's right.

Do you know the reasoning behing this Robin? Sorry if this has been explained elsewhere and I've missed it.

....I'm going to have to come back to you on that one - I really don't want to misinform you and want to be sure of my facts (as VWR see it) first. I'm sure that not everyone in the industry is going to agree! Especially APR and Autotech.

So don't shoot the messenger, guys!

[WhiteGTI]

Also my understanding is that VWR don't believe that the aftermarket fuel pumps are a good idea in the long term. Various experts can sometimes tell you quite different things and it's sometimes difficult to know who's right.

Do you know the reasoning behing this Robin? Sorry if this has been explained elsewhere and I've missed it.

....I'm going to have to come back to you on that one - I really don't want to misinform you and want to be sure of my facts (as VWR see it) first. I'm sure that not everyone in the industry is going to agree! Especially APR and Autotech.

So don't shoot the messenger, guys!

Oh no not at all! It would just be good to hear a respected tuning company such as VWR's opinion on the matter 

[RedRobin]

....Mark (Head Tech) from VWR has just left here and I mentioned that a few of the Ed30 lads were having these problems. Also I had earlier given him all of Hurdy's details. His instant response was that unfortunately it's down to putting too much power through the DSG. The DSG box is absolutely identical on both Mk5 GTI and Ed30. I don't yet understand this because nearly all tuners limit the torque on DSG cars. I'm at max Revo recommended torque and have no clutch issues. I thought it was the torque rather than bhp which the DSG needed to have limited in order to avoid clutch problems.

VWR don't have clutch packs yet but yes it would make a lot of sense to do that at the same time as a diff.

Also my understanding is that VWR don't believe that the aftermarket fuel pumps are a good idea in the long term. Various experts can sometimes tell you quite different things and it's sometimes difficult to know who's right.

I've already introduced Hurdy to VWR so it's best I drop out of that detailed discussion now. I don't want to inadvertantly mislead anyone.

Thanks for the advice, my car is a standard GTi not a Ed30 - so the clutch is weak in comparison to allot of you guys. Also surprised that the ED30 DSG gearbox is the same unit as in the, assuming that the clutch comes in the same package, due to the differing power/torque the Ed30 puts out.

Now get out and test that LSD!

....Illogical isn't it! But the built-in and designed 'headroom' tolerances of the GTI DSG box of tricks for the 200 bhp (approx) GTI is obviously considered totally adequate by VW for the 230 bhp (approx) Ed30 - The DSG box is identical for both Mk5 GTI and Ed30 - I am confident about that.

....Definitely looking for every opportunity but also wanting my diff 'education' at Bruntingthorpe under my belt before risking a mouthful of hedge! Will post a small update later - Gotta go out soon for a short while - Commitment to teenage daughter and her friends.

 

[RedRobin]

....

I did a 180 mile trip to Plymouth Uni today with my daughter but the route is mostly fast dual carriageway not B-road twisties and no roundabouts.

The A38 dual carriageway is potentially very fast - Quite capable of safely taking a constant 120 mph if little traffic, but it's the UK, so no opportunity. There's some sweeping fast bends on it which would have been ideal for some high speed testing. One stretch was good - Dual carriageway with tight but smooth bends with an advised speed of 40 but 70 was absolutely no problem - The diff makes the car feel totally unphased and rock steady. Obviously I built up to it slowly rather than go steaming in.

On another short stretch of dual carriageway nearer to home, the road dips and bends and rises bending right then left and swooping down and with cambers which usually threaten to unsettle the car but today with the diff I could simply blast right through it. It feels almost as if my car is no longer front wheel drive.

Overall, the car feels as if the suspension has changed - It feels more settled and planted - But I'm very aware of the dangers of the placebo effect.

I need some twisty B-roads and roundabouts.

[bacillus]

You also need to update your sig RR...   

[RedRobin]

You also need to update your sig RR...   

....My sig's list of mods went out of date a while ago! But thanks for the reminder - I'll do so soon.

I'm now off out to find some twisties! Back home in time for the F1 on telly

[bacillus]

I'm now off out to find some twisties!

Do you mean these RR?   

[RedRobin]

....

Planned the twistiest route I know locally and did 45 miles this fine Sunday morning. I had to keep stopping to let the traffic get clear ahead - A few wretched caravanners around and trains of slow drivers braking for every single bend when they weren't going fast enough to warrant doing so - You all know the sort!

The diff is soooo smooooth! I've only just started to explore it for myself and, as I've said before, need Mark to demonstrate it to me fully. Compared with some of the same bends without the diff, it feels much better planted but it's seamless - You only know it's working because of the better traction/handling. Not a cheap mod at about £1,550 but it transforms the car - It feels like a higher performance car. I had ESP on as I usually do.

I'm very very curious to learn how the Mk6 GTI's electronic diff feels, and indeed how it works.

Big thumbs up so far!!

[neg]

A diff in a powerful front wheel drive car does tranform the car - I know a guy with a modified Leon Cupra R and when he has a diff fitted it was like he had 4 wheel drive, the power and grip he could put down coming out of corners was amazing compared to before.  Like you say though an expensive mod - def interested in how the mk6 will handle it.