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Quaife ATB Helical LSD
#625080
04/06/2008 23:17
04/06/2008 23:17
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busa1300
Unregistered
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busa1300
Unregistered
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Re: Quaife ATB Helical LSD
[Re: ]
#625327
05/06/2008 11:17
05/06/2008 11:17
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Joined: Dec 2005
Posts: 12,295 Sandhurst
Begbie
Ex El Presidente
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Ex El Presidente
I AM a Coop
Joined: Dec 2005
Posts: 12,295
Sandhurst
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I think sedicirich runs one on his tipo race car and judging by what he was saying, it is a big improvement for him on the race track.
Your car is Usain Bolt with wellies
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Re: Quaife ATB Helical LSD
[Re: JohnS]
#625346
05/06/2008 11:29
05/06/2008 11:29
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eldinho
Unregistered
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eldinho
Unregistered
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it says its suitable for a variety of models, not sure if that includes the 20VT
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Re: Quaife ATB Helical LSD
[Re: ]
#625355
05/06/2008 11:36
05/06/2008 11:36
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nyssa7
Unregistered
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nyssa7
Unregistered
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Looking at the Quaife web site, this exact model is the same one as in Rich's Tipo, also fits Grande Punto, Punto GT, Strada, and a host of Alfa 156 and 147 amongst others
Suspect it doesn't fit the 20vt, but if you do fit an LSD to 20vt then you have to remove the ViscoDrive
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Re: Quaife ATB Helical LSD
[Re: ]
#625361
05/06/2008 11:44
05/06/2008 11:44
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Joined: Nov 2006
Posts: 1,580 Melbourne, Australia
Scuderia
My life on the forum
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My life on the forum
Joined: Nov 2006
Posts: 1,580
Melbourne, Australia
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Its for the "Tipo" C510 gearbox. i.e. only non turbo Coupes
Last edited by Scuderia; 05/06/2008 11:44.
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Re: Quaife ATB Helical LSD
[Re: JohnS]
#625422
05/06/2008 13:10
05/06/2008 13:10
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sediciRich
Unregistered
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sediciRich
Unregistered
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I have Bacci Romano Plate diff a little more expensive but a fantastic bit of kit. For road use the quaife would be lower maintenance but liukily the turbo boxes have seperate diff casing. If a std visco is allowing huge on throttle spin while cornering I'd say it was done in. really I think the visco drive is a gift there are many cars that could do with this but have nonsense 'traction' control systems.
I would imagine the quaife has a fast locking or bias action then the visco trev you may know you have ran both. The plate type locks hard (costing me a drive shaft at silverstone this weekend), thus for road manners I'd say 1. Visco 2. Quaife 3.plate.
Rich
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Re: Quaife ATB Helical LSD
[Re: ]
#625490
05/06/2008 14:51
05/06/2008 14:51
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sparco
Unregistered
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sparco
Unregistered
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How much was the bacci one Rich. Got a spare gearbox now so looking to take it to bits and see what i can do with is to make it stronger, might as well upgrade to a more track oriented diff too if i can.
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Re: Quaife ATB Helical LSD
[Re: Begbie]
#625557
05/06/2008 16:29
05/06/2008 16:29
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Joined: Nov 2006
Posts: 1,580 Melbourne, Australia
Scuderia
My life on the forum
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My life on the forum
Joined: Nov 2006
Posts: 1,580
Melbourne, Australia
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The Quaife diff is an ATB type, Torque bias, or Torsen. I still dont understand the physics behind how they work, its bloody complicated, purely mechanical.
Visco and plate diffs work in a similar way. When one axle starts to spin faster than the other the diff acts to limit the slip difference by "locking up" the 2 axles together. The Torsen does not try to lock the axles, it will vary the amount of torque sent to each axle depending on the available traction each axle has. The bias is infinitely variable and has immediate effect. e.g. both axles turn with equal traction, 50% torque to either side. If one wheel slips, traction on that side may reduce to say 50% of the other, so that wheel will receive 50% less torque while the other recieves 50% more.
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Re: Quaife ATB Helical LSD
[Re: Scuderia]
#625580
05/06/2008 17:21
05/06/2008 17:21
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sparco
Unregistered
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sparco
Unregistered
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Beggers what's the difference between them then?
Last edited by sparco; 05/06/2008 17:21.
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Re: Quaife ATB Helical LSD
[Re: ]
#625633
05/06/2008 18:48
05/06/2008 18:48
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Joined: Dec 2005
Posts: 3,158 Near Reading
JohnS
I need some sleep
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I need some sleep
Joined: Dec 2005
Posts: 3,158
Near Reading
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If you want a stronger box better to change to the early style box and get the grale style strengthening
Former low boost hero - 616BHP@1.5 bar. 2.4 20VT RIP
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Re: Quaife ATB Helical LSD
[Re: ]
#625662
05/06/2008 19:38
05/06/2008 19:38
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sediciRich
Unregistered
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sediciRich
Unregistered
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Marco you have your own company (IIRC) if you are vat reg you can avoid the 20% italian sales tax - it was 1237 euro exc vat.
rich
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Re: Quaife ATB Helical LSD
[Re: ]
#625735
05/06/2008 21:13
05/06/2008 21:13
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Joined: Dec 2005
Posts: 10,728 N.E Scotland
mattB
Club member 6
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Club member 6
I AM a Coop
Joined: Dec 2005
Posts: 10,728
N.E Scotland
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And conveniently, a number of lorries that make regular trips to Italy....
Death-rattle-tastic
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Re: Quaife ATB Helical LSD
[Re: mattB]
#625812
05/06/2008 23:27
05/06/2008 23:27
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sparco
Unregistered
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sparco
Unregistered
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Rich what are the benefits of it in your opinion?
John what strengthening can be done to the early box? I already have a late 5 lined up mind you.
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