Both Rovers employ control strategies that manipulate the valves to prevent the fluid recirculating and provide engine braking.
When the 75 replaced the 800 series they carried over alot of the auto box operation to the Getrag box because the 800 auto's worked so well.
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in a manual wasnt there always a debate re emerg stop from high speed about whether you should floor the clutch immediately, or after you have slowed right down
in a manual high speed emerg stop i wouldnt dip the clutch until speed has dropped below about 30
when travelling at lower speeds id dip the clutch anways, since there isnt much in it
in my current auto i can hit the brake and have ABS cut in just about anytime (if i really want to slow dramtically) and i figure that if the ABS is working then the car isnt going to slow any faster whatever the gearbox is doing
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I'm reliably informed that you should hit the clutch at the same time as the brakes. Apparently this removes the inertial effects of all that rotating and reciprocating mass in the drivetrain. One imagines that the same effect would be had by knocking an auto into neutral, though I never did this in my 827 and, as I said, found no difference in the braking ability between the auto and manual versions of the car.
Why not give it a try and let us know if you find any effective difference?
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flywheel type inertia would be good if you want to stop in a straight line
however if you have some fancy steering to do then i agree as little flywheel type affects as possible would be best
this is different to the grip at the tyres, which thinking about it if you are in a car which is set up such that you can provoke ABS being on then you are pretty much at the limit of the retardation the grips can provide regardless of what the transmission can be doing ?
isnt the biggest flywheel effect going to come from the flywheel itself ? which yea would be slowed down if engine dropped to tickover by hitting clutch rather than being matched to geared speed - but most of drive train is going to move at speed related to speed of travel regardless of clutch position ?
but then its late and im tired
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wasn't that argument pre-ABS and linked to the effect that the engine would have in preventing some of your wheels locking up ?
If it was, then I guess with ABS you should hit the clutch at the same tiem as the brakes.
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gyroscope stability provided by spinning parts such as flywheel will add stability is the only real question in my head
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does it make a difference ? I mean a measurable or noticable difference ?
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absolutely
a fly wheel with that many Rev's on it has dramatic gyroscope properties that most drivers probably arnt even aware of
after all a motorbikes stability and ability to stand up at speed is largely driven by the two gyroscopes with tyres on at each end!
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If it did, you'd have real trouble going round any corner. There are too many other factors for this to be noticable in a car.
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wasn't that argument pre-ABS and linked to the effect that the engine would have in preventing some of your wheels locking up ? If it was, then I guess with ABS you should hit the clutch at the same tiem as the brakes.
When I was taught to drive some 16 yrs ago, I was told not to press the clutch until almost stopped. As Mark says, it helped prevent locking up the wheels.
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