Quaiffe Diff?

[minxymears]

In order not to hijack the tax rebate thread, what are the advantages of a Quaiffe diff (are we talking LSD here?), how is fitting one more advantageous than fitting cams?

[smearsvtr]

well a quaiffe lsd will help u get more of ur power 2 the road

[Toad]

I don't know what they are like in a Saxo / 106, but a ATB type CAN be great for track use, BUT, can also be a bastard to use. For example, on a rear wheel drive car, if you down shift when braking heavy, and don't match the revs, i.e. putting into 2nd from 4th and releasing your foot from the clutch before the revs have balanced... You will simply lock up the rear wheels and wave goodbye to all your fellow racers as you spin into a wall. Which will likely to be concrete as that's sod's law for ya!

[CampDavid]

http://www.quaife.co.uk/Citroen-AX-Saxo-C2-MA-gearbox-ATB-differential

Basically, your current diff transmits torque equelly to each wheel. An LSD will divert torque to the non-spinning wheels in corners (outside wheel) which effectively "pulls" you round the corner.

This is a good thing, and should make the car faster on the road/track than an equivilent car with more power

[Yates]

but is it true what toad says dave?

[CampDavid]

not with an ATB. ATBs don't use plates and hence don't lock.

I'm not sure how Toads example would differ from having an open diff. Drop it into 2nd at 100mph you'll lock your wheels and/or blow something up.

The one downside that you may get is that the car will jump around a bit when your on a straight piece of bumpy road

[Yates]

but anyone sensible wouldnt drop it at 100mph to 2nd

expensive tho arent they? how easy are they to fit?

[CampDavid]

How easy is it to take a gearbox off? Need to get a crownwheel machined on as well. Great though. Williams should eb able to sort it all for you upn your way for not much I'd have thought

[Ryan]

Quafie.

[Ryan]

How easy is it to take a gearbox off? Need to get a crownwheel machined on as well. Great though. Williams should eb able to sort it all for you upn your way for not much I'd have thought

the machining of the crownwheel is about £20 by quaife engineering.

i got mind for free ;)

[CampDavid]

I've been quoted £180 for swapping my gearbox over so say £200 all in to fit. Not bad

[Ryan]

but anyone sensible wouldnt drop it at 100mph to 2nd

expensive tho arent they? how easy are they to fit?

£550 ish!

then whole gearset needs to come out, and refitted. id go for new bearings and synchros.

my quaifed up box has had 1k spent on it inc cost of the box

[Ryan]

I've been quoted £180 for swapping my gearbox over so say £200 all in to fit. Not bad

swapping the box over dave? or swapping the gearset over?

[Yates]

so 550 would get it bought and fitted?

[Ryan]

so 550 would get it bought and fitted?

NO

550 for the diff alone

[Yates]

magic, think im going to stick with my plan for cams at the moment

[Ryan]

magic, think im going to stick with my plan for cams at the moment

if your getting a diff. and want a better box, get an xsi or s1 rallye final drive and wang it in!

i have both here lol

[KamRacing]

I don't know what they are like in a Saxo / 106, but a ATB type CAN be great for track use, BUT, can also be a bastard to use. For example, on a rear wheel drive car, if you down shift when braking heavy, and don't match the revs, i.e. putting into 2nd from 4th and releasing your foot from the clutch before the revs have balanced... You will simply lock up the rear wheels and wave goodbye to all your fellow racers as you spin into a wall. Which will likely to be concrete as that's sod's law for ya!

you can do that without a fancy diff, works very good in rallying. Gets the nose nicely in the corner so you can powerslide round. Great fun!

magic, think im going to stick with my plan for cams at the moment

personally I would think the diff would be a better option if you want to improce your cars performance. The quaifes are fantastic for the road and light track use, though have some disadvantages over a plate diff when used in racing as they do not work when a wheel is off the round.

[CampDavid]

Start stocking them Mr Racing. They have a big fat markup from Quaife. Sell them at cost + 10% and that'd put you well on the map of places to get parts from.

[Yates]

im kinda put off by the changing around of the gear box, swapping drives, only being i dont really have a clue what you lot are saying in a way. i know about the different drives in the box, but chopping and changing.

my car woould be used more on the road and light track use for now. Kam do you sell the Quafie?

[mardon]

These are amazing I really really really want one.

Did you read the write-up of the new Megan with the LSD. The car was much faster than your usual 225 (even though its got an extra 5bhp) due to the LSD. Know its not a Quaife but it makes a big difference.

If you can source a 1.4 xsi final drive when refubing the box when the Quaife goes in you'll have a much faster car). Combined with a good suspension and break setup.

[Ryan]

If you can source a 1.4 xsi final drive when refubing the box .

coughs loudly

[Ryan]

im kinda put off by the changing around of the gear box, swapping drives, only being i dont really have a clue what you lot are saying in a way. i know about the different drives in the box, but chopping and changing.

my car woould be used more on the road and light track use for now. Kam do you sell the Quafie?

the final drive is the crown wheel, diff and pinion shaft.

the rest of the box is the sports cluster on sports boxes, same for all gti, rallyes etc..

the final drive comes out when you change the diff. to fit the ATB.

so when you do this if you change the crown wheel and pinion shaft from a box say an s1 rallye box you have made your box an s1 rallye box with a diff.

it couldnt be simpler. either way the final drive comes out when fitting the diff, its better to change it now rather than later

[mardon]

coughs loudly

How many you got mate. May take one of yours hands towards the end of the year.

[Ryan]

How many you got mate. May take one of yours hands towards the end of the year.

1 mint 1.4xsi final drive. belived to be under 1k milage!
posibly getting another one thats not so low soon thouygh

and an s1 rallye box im raping for spares possibly. doesnt matter if the diff is shagged if someones going for an ATB

[mardon]

Does the ATB replace the finnal drive? I know that Quaife supply their own final drive. Think its quite short though.

[Ryan]

Does the ATB replace the finnal drive? I know that Quaife supply their own final drive. Think its quite short though.

it replaces the diff.

the final drive is the crown wheel and pinion shaft combined with the diff!!

so the diff itself does not replace the final drive ratio of a vts for example

[mardon]

I'd have to look at a diagram to get it strait in my head.

[R66CE_O_vtr]

to buy a diff n get it fitted would cost about 1k easy

[Ryan]

to buy a diff n get it fitted would cost about 1k easy

as i had said allready in the tread ;)

your looking at about £650-700 for it fitted really depending on who you know.

obvisouly a full rebuild with new synchros etc.. which is the best way increases the price.

[Yates]

seriously cant decide which one to go for, cams or this, want something for the car

can i use the s box with the xsi final drive?

ryan could you break down the prices for me? and what id need? this rebate has got me thinking

[Ryan]

seriously cant decide which one to go for, cams or this, want something for the car

can i use the s box with the xsi final drive?

ryan could you break down the prices for me? and what id need? this rebate has got me thinking

if you have the vts box when its in bits, you can put any final drive on it, so if you used the xsi final drive, when the box is back together you will have an xsi box with a diff.

does that make sense mate?

i had my box rebuilt by mankee cheng..

go to a local company and ask how much they would charge to take appart your box, fit the new crownwheel with diff, and reasemble the lot, i personally would go with new synchros at the same time.

could even ring quiafe direct and see how muchos they will charge mate.

[Yates]

when ive got more time il look into it more have to see

[tweeqd]

ATB was the best thing i ever bought for my car it changed the whole car, we specialise in MA boxes so if anyone wnats them sourced and fitted i can do it.

the only down side to me fitting a BE to the ax is having to sell the ATB, but as soon as funds allow ill be getting one for the BE

[Ryan]

ATB was the best thing i ever bought for my car it changed the whole car, we specialise in MA boxes so if anyone wnats them sourced and fitted i can do it.

the only down side to me fitting a BE to the ax is having to sell the ATB, but as soon as funds allow ill be getting one for the BE

off topic but i still cant wait to see when your car is done martin, i never got to see it in its previous incarnation.

I cant wait to try my atb out once my car is finally put back together.

and for anyone wanting martin to work on their box i would recomend him, he fitted a friends (matt hunt) and its all been done to a great standard and has had no problems at all.

[tweeqd]

off topic but i still cant wait to see when your car is done martin, i never got to see it in its previous incarnation.


the pile of parts is ever increasing lol ;)

[Ryan]

the pile of parts is ever increasing lol ;)

pile of parts! get moving dear boy!! i shall come armed with my camera when its done lol

i may need to speak to you about nos further down the line, but i dont know if i can bring myself to drilling my jenvey SF inlet manifold!

[tweeqd]

not quite as good as the jenvy but i dont want to drill my S1 inlet but needs must lol, just waiting for a few parts from america to carry on ;)

[Ryan]

not quite as good as the jenvy but i dont want to drill my S1 inlet but needs must lol, just waiting for a few parts from america to carry on ;)

s1 inlets are still all good! should make running high boost fun! no need to worry about plastic inlet fannymoulds collapsing!

[tweeqd]

s1 inlets are still all good! should make running high boost fun! no need to worry about plastic inlet fannymoulds collapsing!

:y: got to love an inlet plenom on a boosted engine

[Ryan]

:y: got to love an inlet plenom on a boosted engine

even though boost is ghey ;)

will it be a pain to set up? or im guessing the way you are going to set up the engine you wont have the problem most people have with the s1 inlet on the vtr head.

[tweeqd]

manifold fits straight on and it will be running complete standalone, probably DTA S60 but looking at others aswell ;)

[Ryan]

manifold fits straight on and it will be running complete standalone, probably DTA S60 but looking at others aswell ;)

sounds good then. no worried with having to tap holes for the MAP sensor etc then.

i shall have to keep my ear to the ground as to when its done.

[tweeqd]

got to drill and tap for the direct port nitrous, the biggest problem with it is making an adaptor for a cosworth throttle body so i can run anti lag :y:

[Ryan]

got to drill and tap for the direct port nitrous, the biggest problem with it is making an adaptor for a cosworth throttle body so i can run anti lag :y:

is there a huge difference in the size of the throttle body itself im guessing?

[tweeqd]

not that much the cossie is bigger but it has the right bit to use with the ALS, were looking n to fitting it to the S1 TB but will go cossie if we have to

[Ryan]

sounds like the cossie one is a much better and easyer option if you can get an adaptor fabricated for it.

she gonna be a beast!!!

almost makes me want to tune my 8v, but a 16v on bodies will have to do for now.