Author Topic: Quaife Diff by VWR....  (Read 18290 times)

Offline DanGB

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Re: Quaife Diff by VWR....
« Reply #30 on: 29 September 2008, 10:04 »
Excellent reports Robin.

Im very close to commiting now to a diff, slightly cheaper than yours though being the manual version. :)
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Offline RedRobin

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Re: Quaife Diff by VWR....
« Reply #31 on: 29 September 2008, 10:29 »
Excellent reports Robin.

Im very close to commiting now to a diff, slightly cheaper than yours though being the manual version. :)

....VW Racing do their own Quiafe version diff for manual too. I can't recommend VWR strongly enough!
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Offline Teutonic_Tamer

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Re: Quaife Diff by VWR....
« Reply #32 on: 29 September 2008, 17:05 »
The Quaife ATB diff installed is the one developed with VWR and is designed to respond more quickly to the physical inputs.

I can not see that a major engineering specialist will allow any further development by a third party of their already highly regarded exisiting product.  A Quaife ATB will be a Quaife ATB, irrespective of weather it is fitted by VWR or whoever else!

It's quite a lump and weighs 10 lbs - Good job I saved weight with that carbonfibre bonnet isn't it!

But being as the Quaife is merely a replacement for the similar weight standard VW diff, then there should be an extremely minor difference of the total mass of the DSG box.  :nerd:
Sean - Independent Automotive Engineering Technician (ret'd)
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Offline Teutonic_Tamer

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Re: Quaife Diff by VWR....
« Reply #33 on: 29 September 2008, 17:12 »
....It's a Quaife diff modified to VWR's design and manufactured by Quaife exclusively for VWR.

Sorry, but that just does not ring true at all.  The Quaife diff in your car as fitted by VWR is exactly the same as any other Quaife (Mk5 GTI DSG) diff - supplied and/or fitted by anyone else.  For VWR to "claim" that the one they fit is somehow exclusive to them is very misleading, and probably breaches some UK law!
Sean - Independent Automotive Engineering Technician (ret'd)
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'06/7 Golf Mk5 GTI 5dr (BWA) DSG, colour coded,

I feel like a homo


Offline Teutonic_Tamer

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Re: Quaife Diff by VWR....
« Reply #34 on: 29 September 2008, 17:20 »
....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.

Not true again.  VWR seem to be giving very misleading information.  There are 20 different DSG boxes, just for front wheel drive cars, with a further three for 4wd cars.  Now specifically looking at just a 2007 model year GTI, and excluding the Ed30, there are 3 different DSG boxes fitted!  :rolleyes:
Sean - Independent Automotive Engineering Technician (ret'd)
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'06/7 Golf Mk5 GTI 5dr (BWA) DSG, colour coded,

I feel like a homo


Offline RedRobin

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Re: Quaife Diff by VWR....
« Reply #35 on: 29 September 2008, 17:41 »
....It's a Quaife diff modified to VWR's design and manufactured by Quaife exclusively for VWR.

Sorry, but that just does not ring true at all.  The Quaife diff in your car as fitted by VWR is exactly the same as any other Quaife (Mk5 GTI DSG) diff - supplied and/or fitted by anyone else.  For VWR to "claim" that the one they fit is somehow exclusive to them is very misleading, and probably breaches some UK law!

....Well, all I can possibly do is report/post information which is always to the best of my knowledge and VWR's Technical Manager has stated to me in more than one conversation that the version of the Quaife which VWR offer is exclusively for them and has resulted from their (VWR) design suggestions based on usage in their race cars.

I best double check that I somehow haven't misunderstood what I've been told.

Whichever Quaife is hiding in my DSG box, it's a fecking good 'un!!
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Offline RedRobin

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Re: Quaife Diff by VWR....
« Reply #36 on: 02 October 2008, 19:23 »
....

Another decent long drive today - 180 miles round trip to have lunch in a Harvester pub (I recommend the Caribbean Curry) with my accountant and close friend - He's just got the latest Saab Estate but never uses the paddles!

Roads were wet after raining last night and so a good test although they quickly dried off. B-roads, A-roads, and M-way. I'm slowly getting more confident and pushing harder to see how well the Quaife performs. She finds the grip/traction very quickly, even being undisturbed by a large wet manhole cover. Sometimes, if going very hard on the throttle for an overtake, she'll imperceptibly snake under acceleration - It really is very subtle and over very quickly and it's probably only a centimetre in side movement - absolutely nothing to worry about and the ESP doesn't cut in. The Quaife feels gentle and not in the slightest bit harsh when it comes in - You have to concentrate to catch its action.

I'm not experiencing that nasty random snatching anymore either - We thought it may have been due to mixing directional with assymetric tyres but VWR also cleaned up the wheelspeed sensors when installing the diff, so who knows.

It's not a cheap mod but really transforms a remapped FWD Mk5 GTI by contributing so much to getting the power down. I have to be careful that it doesn't lull me into being over confident!

Instead of feeling pessimistic about roundabouts in wintry wet conditions, I'm strangely looking forward to it.

:afro:
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Peskarik

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Re: Quaife Diff by VWR....
« Reply #37 on: 02 October 2008, 19:26 »
 :cool: or in the words of my boss: "Fantastic! Sensational!"

1500 quid is not THAT expensive.
Get this - my Oettinger remap was 1100 quid!  :shocked:
So even though I'd love to have Quaiffe, it'll cost me twice what you pay, most likely.  :lipsrsealed:

Offline 182_blue

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Re: Quaife Diff by VWR....
« Reply #38 on: 02 October 2008, 19:28 »
:cool: or in the words of my boss: "Fantastic! Sensational!"

1500 quid is not THAT expensive.
Get this - my Oettinger remap was 1100 quid!  :shocked:
So even though I'd love to have Quaiffe, it'll cost me twice what you pay, most likely.  :lipsrsealed:

your kidding ?, the Revo remaps are £500 ish, so the Oettinger is disgusting

Peskarik

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Re: Quaife Diff by VWR....
« Reply #39 on: 02 October 2008, 19:32 »
:cool: or in the words of my boss: "Fantastic! Sensational!"

1500 quid is not THAT expensive.
Get this - my Oettinger remap was 1100 quid!  :shocked:
So even though I'd love to have Quaiffe, it'll cost me twice what you pay, most likely.  :lipsrsealed:

your kidding ?, the Revo remaps are £500 ish, so the Oettinger is disgusting

Switzerland, dude.... YOu should see the prices ABT charges  :shocked: :sick: And they don't even offer bigger intercoolers or TBEs (hell, they only offer back-box!)
Be happy you live in car enthusiast (the right way) country like Britain!
« Last Edit: 02 October 2008, 19:36 by Peskarik »