Hi all,

I have approached Quaife about making a Diff for the 5 and 6 speed Gearboxes that are fitted to all the Fire engined cars. In effect, this Diff will fit all the Cinq's and Seis. The Petrol engined Panda's, Petrol (Fire)engined Tipo's, Petrol Fire engined Punto's, all Petrol GP's and so on.

Apparently the Quaife QH2K will fit, but I know that the splines are different on the output shafts for example....

Quaife have said they will make this Diff, but I need to get at least ten firm orders.

At present, all that is available is the Bacci option, which costs a fortune, especially with the current exchange rates...

Please have a think on this, and let me know by PM or on this thread if you are "Seriously" interested. The price should be up on here before the end of the day.

I'm sure there may be a few people interested if the price is competitive.

We would be, and I would think Kristian would be as well as we both run 1.4 16V Seicento's, sure there may be others but it will all come down to cost.

Excellent work though to approach them.

Just to let you all know, Quaife have quoted £460 each for 10 off, as long as it's not too complicated to make.

I can't see any real problem in them being able to make it, it's probably a standard QDH2K with different splines on the output shafts.

At £460, it's about a quarter of the cost of a Bacci???

Bloody hell, I'm an idiot for even contemplating it but.............

If that £460 delivered with VAT, and not needing mods to the box to fit, then, yep, i'll sign up!!!!! Just have to make sure I keep it on the low down

Will it change the final gearing of the car is one thing i need to know?I run 4200rpm driving down the motorway, and as mine is a daily driver, i can have it going much higher

Hi Kris,

It won't change the gearing at all mate. I would imagine the price is plus vat??? Still when you consider a QDH2K is £580 plus vat, it's not a bad price at all!!

I did put threads on all the relevant sites that I was doing this, and the mods removed them, as I was multi posting. If anyone knows someone who could be interested, please let them know. Together we could finally come up with a non-plate type LSD for the Fire box. (At a reasonable price as well)

You mean you posted in the different sections of this forum?

I can post one over on ClubCento, see if there is any interest.

I suppose plus vat is still ok

Cheers,

Kristian

//edit - does Rallycinq already run an LSD? I'll PM just in case he's interested. Shame Nitrane already has one.

Put me down for one.

The Diff will not change the gearing, you'll be moving your own Crown wheel onto the new diff.

Cheers

SPD

i am interested, but until i get a new job i cannot afford / justify buying one. what time scale are we looking at?

also, having swapped diffs on FIRE boxes before - and having ended up with a horrible whine as the box had worn at a different rate to the diff.. does that happen with fitting a new diff, do i need to recon the gearbox with new final drive?

edit: MODS. can this have some exposure in the relevant parts of the forum, its all well and good having a forum for dealing with the logistics of a group buy - but it won't be seen, i for one wouldn't have checked this thread if it weren't for a post on another forum

Ill take one for a 6speed box deffo, my one started to make alot of clonking so took the box off and have been meaning to sort it for a while.

Ideally, i need two diffs, as i need one for me other project, but its just the cost

Would this fit the 6 speed box on a 2008 Bravo T-Jet? If so I might be interested although something in the back of my mind thinks that the Q2 might fit this box??

Ive changed me mind, ill take two Another weekend day of work should bring this months OT payment to cover the cost of one unit

thepottleflump said:

Would this fit the 6 speed box on a 2008 Bravo T-Jet? If so I might be interested although something in the back of my mind thinks that the Q2 might fit this box??

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Alfa Q2 diff is different as far as I can see, even the GP/500 Abarths run the 5 speed Alfa gearboxs rather than the 6 speed FIRE engined box which is more than probably down to fact the 6 speed box is just an evolution of the 5 speed box (same casing etc with a long bolt on section at end to accommodate 6th gear) which was originally designed for the FIRE engines cars like Puntos/Cento's which never had any more than 75ish lb ft, so even in the 95ish lb ft Punto/Stilo/Panda/500 etc its still well within limits, but in a SS equipped GP Abarth putting out 200ish lb ft probably beyond design limits for long term durability.

Therefore I would say that as you have a 6 speed box, its the same 6 speed box as other FIRE engined cars and therefore will fit. But that's only an educated guess, if I were you I'd maybe try & cross referencing part numbers on EPER should be able to confirm.

We need a provisonal list then I guess. If you want one, add yourself.

So far looking at this thread we have:

• Nigelr32
• KriTip
• J333EVO
• Rallycinq
• Brooky x2

So that's 6 so far

Arc, sell a kidney

Just need a couple more :slayer: :yum:

arc said:

edit: MODS. can this have some exposure in the relevant parts of the forum, its all well and good having a forum for dealing with the logistics of a group buy - but it won't be seen, i for one wouldn't have checked this thread if it weren't for a post on another forum

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I hear what you are saying, BUT if this is allowed, then we may as well allow threads across the board for every single event in the Event section, every single for sale/wanted in the Classified section, etc.

People just need to learn to use the forums to their full potential, and not just stick to one section.

Personally, I use NEW POSTS, and hopefully miss nothing

I'm interested, may add myself to the list.

Know this sounds like a novice question but am I right in thinking that this would make a huge difference to the nasty effect you get when hitting a deep puddle at the side of the road with the kerbside wheel? :idea:

Are there any downsides to fitting one other than that for a manufacturer it adds mechanical complication & therefore this bumps up cost?

Smiler121 said:

I'm interested, may add myself to the list.

Know this sounds like a novice question but am I right in thinking that this would make a huge difference to the nasty effect you get when hitting a deep puddle at the side of the road with the kerbside wheel? :idea:

Are there any downsides to fitting one other than that for a manufacturer it adds mechanical complication & therefore this bumps up cost?

Click to expand...

If you drive a high powered front wheel drive car, fast off the line, you experience torque steer. This diff will reduce that.

The biggest benefit of an LSD is that when cornering, you dont suffer power loss as the inner wheel becomes light and spins. An open diff will put all the torque to this spinning wheel, therefore, in effect, losing power.

The beauty of a quaife diff is that it shifts the power between wheels progressively, whereas a plate diff tends to snatch. This is not desireable in a FWD car.

Manufacturers try to cut costs wherever possible. These days they use electronics a lot. For instance, my 4WD Jeep has no LSD's at all. It uses the brakes to lock the spinning wheel, therefore putting the power to the other wheel. A simple program in the ABS ECU is a lot cheaper than a pair of LSD's. Some manufacturers use Quaife Diffs as OEM.

arc said:

also, having swapped diffs on FIRE boxes before - and having ended up with a horrible whine as the box had worn at a different rate to the diff.. does that happen with fitting a new diff, do i need to recon the gearbox with new final drive?

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You will fit your existing crownwheel to the new Diff, so there'll be no noise issues.

Can someone please tell me how this normally works, as far as payment etc is concerned?? I guess I'd have to buy all ten, then distribute them accordingly??

I suppose then I would take deposits off you all before ordering??

If we can get the number up to eight, I think that'll be enough to make me remove my diff and send it off to Quaife.

what kind of time scale are you looking at, like i say, i do want one but cannot buy one at the moment

arc said:

what kind of time scale are you looking at, like i say, i do want one but cannot buy one at the moment

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I'm guessing ARC, but say I took my Diff to Quaife next week, it would probably take them at least a month to make one diff, then they'd want to try it in a box for clearance etc Iwould imagine. So, it would probably be the middle of March before you'd have to pay any money??

Hey, if I buy all ten, then I get stuck with a couple, it's not a problem. I'm sure I'll have no trouble selling em on... The Quaife retail is gonna be something like £580 +vat.