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Australian Ford Member
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1,120 Posts
Discussion Starter · #1 ·
What causes the power loss between flywheel and rear wheels, and how much goes where?

Presumably there's nothing (or nothing affordable) that can be done to reduce it, or it would be done, but it'd be nice to be able to reduce it instead of doing mods just to replace what's lost, and then losing part of the improvement again.
 

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BA XR6T
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111 Posts
Most of the losses are due to frictionand are converted into heat. Components such as bearings ( in gearbox, diff & wheels), gear losses, lubricant loads etc are the main culprits.
It's mighty hard to do much about such things - if there was any easy/cost effective way to do it then vehicle manufacturers would certainly have done it:(

Depending on gearbox design, losses there are at a minimum when you're in top gear (1:1 ratio) - not 5th or whatever which is usually not 1:1:rolleyes:
 

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300+rwkw DC LTD Member
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1,622 Posts
Auto's

The auto and converter uses alot of power to work. Generaly manuals power loss ia that low that it's un-noticable compared to the loss of an auto. A good T\C will hell multiply the low down torque so you wont notice such a large power loss.

Correct me if this is wrong. Compare the two ya self.
 

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T5 Expert Operator
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6,540 Posts
Re: Auto's

LTDHO said:
The auto and converter uses alot of power to work. Generaly manuals power loss ia that low that it's un-noticable compared to the loss of an auto. A good T\C will hell multiply the low down torque so you wont notice such a large power loss.

Correct me if this is wrong. Compare the two ya self.
Yeah a manual can be about 8kw more than an Auto thats comparing a falcon in EF guise. Like what bobr said it's firction and heat thats causing the power loss from the fly to the wheels.
It's interesting when some cars go on the dyno they measure power in 2nd gear rather than 4th (1:1) ratio. Which one will have a higher power reading?
 
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