ahh ok i understand now stoney, cheers bud 
Sarah - whats the difference between the LSD and ATB?
Sarah - whats the difference between the LSD and ATB?
new toys
- Thread starter stoneyfordNI
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The QUAIFE Automatic Torque Biasing Differential enables your car to accelerate quicker and corner faster.
How? By getting the power to the ground!
The QUAIFE Differential powers both drive wheels under nearly all conditions, instead of just one.
With an ordinary open differential, standard on most cars, a lot of precious power is wasted during wheel spin under acceleration. This happens because the open differential shifts power to the wheel with less grip, along the path of least resistance.
The QUAIFE, however, does just the opposite. It senses which wheel has better grip, and biases the power to that wheel. It does this smoothly and constantly, and without ever completely removing power from the other wheel.
In cornering, while accelerating out of a turn, the QUAIFE biases greater power to the outside wheel, reducing inside-wheel spin. This allows the driver to begin accelerating earlier, exiting the corner at a higher speed.
The QUAIFE also controls loss of traction when the drive wheels are on slippery surfaces such as ice and snow or mud, providing the appropriate biased traction needed to overcome these adverse conditions. The QUAIFE ATB Differential provides constant and infinitely variable drive. Power is transferred automatically without the use of normal friction pads or plates seen in other limited-slip designs.
The QUAIFE'S unique design offers maximum traction, improves handling and steering, and puts the power where it is needed most. A definite advantage whether on the track or on the street.
The QUAIFE is extremely strong and durable and since the Quaife is gear operated, it has no plates or clutches that can wear out and need costly replacement.
The QUAIFE is great for street driving or racing. Racers don't have to put up with locking mechanisms or spools that tear the steering wheel out of their hands when cornering. Because it behaves like an open differential during ordinary driving, street drivers will have trouble telling it's there until pushing the cars limits.
The QUAIFE has been proven in everything from SCCA Rally to Formula 1. It provides autocrossers with such an advantage, it has become "required" equipment for a winning effort.
Expand your vehicle's limits with the QUAIFE Differential!
taken from quaife site , something technical in the middle somewhere
How? By getting the power to the ground!
The QUAIFE Differential powers both drive wheels under nearly all conditions, instead of just one.
With an ordinary open differential, standard on most cars, a lot of precious power is wasted during wheel spin under acceleration. This happens because the open differential shifts power to the wheel with less grip, along the path of least resistance.
The QUAIFE, however, does just the opposite. It senses which wheel has better grip, and biases the power to that wheel. It does this smoothly and constantly, and without ever completely removing power from the other wheel.
In cornering, while accelerating out of a turn, the QUAIFE biases greater power to the outside wheel, reducing inside-wheel spin. This allows the driver to begin accelerating earlier, exiting the corner at a higher speed.
The QUAIFE also controls loss of traction when the drive wheels are on slippery surfaces such as ice and snow or mud, providing the appropriate biased traction needed to overcome these adverse conditions. The QUAIFE ATB Differential provides constant and infinitely variable drive. Power is transferred automatically without the use of normal friction pads or plates seen in other limited-slip designs.
The QUAIFE'S unique design offers maximum traction, improves handling and steering, and puts the power where it is needed most. A definite advantage whether on the track or on the street.
The QUAIFE is extremely strong and durable and since the Quaife is gear operated, it has no plates or clutches that can wear out and need costly replacement.
The QUAIFE is great for street driving or racing. Racers don't have to put up with locking mechanisms or spools that tear the steering wheel out of their hands when cornering. Because it behaves like an open differential during ordinary driving, street drivers will have trouble telling it's there until pushing the cars limits.
The QUAIFE has been proven in everything from SCCA Rally to Formula 1. It provides autocrossers with such an advantage, it has become "required" equipment for a winning effort.
Expand your vehicle's limits with the QUAIFE Differential!
taken from quaife site , something technical in the middle somewhere
basstard said:
yeah by 5 hours
thanks for the description stoney, just sounds like a normal LSD though.....
aye welll thats wat i understand about it , i know theres loads of differnet diff types out ther -helical , viscous diffs , guess theres another one now according to jbs , we'll have to wait n see wat she says 2moro
sssstew said:yeah by 5 hours
thanks for the description stoney, just sounds like a normal LSD though.....
I swear I didn't notice there was another post,,,
JBS Sales
Guest
Hi
As I believe they are the same , but its how the power is delivered is different.
The LSD I believe it all but locks the diff so the power is slower to the wheels where the ATB will move the power to the other wheel.
So it means that there is no power loss from both wheels it is transfered upposed to lost
I hope that has helped a bit?
You lot dont half make my brain work.
Sarah
As I believe they are the same , but its how the power is delivered is different.
The LSD I believe it all but locks the diff so the power is slower to the wheels where the ATB will move the power to the other wheel.
So it means that there is no power loss from both wheels it is transfered upposed to lost
I hope that has helped a bit?
You lot dont half make my brain work.
Sarah
JBS Auto Designs said:Hi
As I believe they are the same , but its how the power is delivered is different.
The LSD I believe it all but locks the diff so the power is slower to the wheels where the ATB will move the power to the other wheel.
So it means that there is no power loss from both wheels it is transfered upposed to lost
I hope that has helped a bit?
You lot dont half make my brain work.
Sarah
A locked diff is just that.. locked.. so no power lost, just evenly transmitted. ATB is biasing, so needs both wheels to have some load on them for them to work at all. This is why you wont find ATB diffs on proper competition cars, as a plate diff is the faster. It is also in need of regular TLC unlike an ATB diff, so plated diffs are for serious motorsport use.
JBS Sales
Guest
Thank you Billibizacupra said:
You can explain better than me.
So LSD should be able to get the power down quicker?
Sarah
JBS Auto Designs said:
yea, especially when one of the driven wheels is not in contact with the ground.. it still works, where ATB does'nt.
eg: MK1 16v sprint car @ Anglesey circuit claims from changing from ATB to plate diff gained him 1.5secs on that circuit.
Plate diff is likely to need more TLC so not as road user friendly.
ATB diff on a torquey fwd motor is an ace bit of kit, putting power down effortlessly. It is not a limit slip diff.
JBS Sales
Guest
So would it be a different type of LSD on the older cars , like the 2.8 Capri had the LSD but that was on the rear of the car.
How would that work?
Sorry Bill
Sarah
How would that work?
Sorry Bill
Sarah
ATB thing ,
i heard b4 about something , putting ur foot on the brakes if u lose all traction on one wheel , to show it as grip so the diff works the other wheel
ie if ur caught on uneven ground,
probably makes no sense
i heard b4 about something , putting ur foot on the brakes if u lose all traction on one wheel , to show it as grip so the diff works the other wheel
ie if ur caught on uneven ground,
probably makes no sense
JBS Auto Designs said:
not sure what type of diffs capris had, but I did'nt think they were atb type.. plate or VC at a guess?
stoneyfordNI said:
not really applicable as there is no load.. you thinking about the EDL type systems? (apply brake to spinning wheel to force std diff to apply power to the non braked one?)
back again to this , finally got these fitted today
clutch
feels like a normal one with less pedal travel as its new , wee bit on n off but am sure it will settle down with miles , can swear the G box and gearshift is quieter and crisper , probably due to new tranny oil
diff
havent been really using it , i feel it the most pulling out of a junction , no wheel spin at all , bar if u really push it ,well worth the time money hassle, cant wait till i get a few miles on , i know a wee stretch of B-road thatll test it,
out now for a wee drive to warm its cockles .
clutch
feels like a normal one with less pedal travel as its new , wee bit on n off but am sure it will settle down with miles , can swear the G box and gearshift is quieter and crisper , probably due to new tranny oil
diff
havent been really using it , i feel it the most pulling out of a junction , no wheel spin at all , bar if u really push it ,well worth the time money hassle, cant wait till i get a few miles on , i know a wee stretch of B-road thatll test it,
out now for a wee drive to warm its cockles .
jbs assure me it settles down , have just done 100 miles in it tonight , feels amazing , clutch is better and i love roundabouts now cos of the quaife , best mod yet
my clutch is uprated but its not on off i think it all comes down to what matrial the drive disc is made of.Cerametallic paddle and puck discs are worse i think.
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