Straight cut gears?
#6
Originally Posted by Chip-3Door
FAR less than people make you think.
couple of percent if that IME
couple of percent if that IME
How much of a difference do they make you feel to a Mini? What power level would think about fitting them? I've heard around 100BHP.......
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#8
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Originally Posted by _DAN_
Originally Posted by Chip-3Door
FAR less than people make you think.
couple of percent if that IME
couple of percent if that IME
How much of a difference do they mak you feel to a Mini? What power level would think about fitting them? I've heard around 100BHP.......
In a mini you are lucky if you see a genuine 2bhp difference IME
Well over 100bhp should be fine on a normal box (for a while), the drop gears want swapping for SC at about 110 though normally.
#9
Originally Posted by Chip-3Door
Originally Posted by _DAN_
Originally Posted by Chip-3Door
FAR less than people make you think.
couple of percent if that IME
couple of percent if that IME
How much of a difference do they mak you feel to a Mini? What power level would think about fitting them? I've heard around 100BHP.......
In a mini you are lucky if you see a genuine 2bhp difference IME
Well over 100bhp should be fine on a normal box (for a while), the drop gears want swapping for SC at about 110 though normally.
I meant drop gears, not the actual 'box.
#11
Originally Posted by dave cos4x4
Originally Posted by RWD_cossie_wil
Originally Posted by dave cos4x4
good.
Will asked: "How much drivetrain loss does having straight cut gears have compared to helical cut?"
Chip said: "FAR less than people make you think......couple of percent if that IME".
You thought: "Nice only 2% of my engine power will be lost through the mullet box"
When in actual fact, the difference in losses between helical cut and straight is only a few %.
#12
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Sorry, reading that question again it is very badly put
Err, how about:
What are the drivetrain losses with a straight cut kit compared to a hellically cut kit?
Working on a 4x4 figure of 35% losses for a Std 4x4 set up, would it be fair to say the straight cut box should see these dropping ( ie more power making it to the wheels) to between 33-30% loss?
Err, how about:
What are the drivetrain losses with a straight cut kit compared to a hellically cut kit?
Working on a 4x4 figure of 35% losses for a Std 4x4 set up, would it be fair to say the straight cut box should see these dropping ( ie more power making it to the wheels) to between 33-30% loss?
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Originally Posted by RWD_cossie_wil
Sorry, reading that question again it is very badly put
Err, how about:
What are the drivetrain losses with a straight cut kit compared to a hellically cut kit?
Working on a 4x4 figure of 35% losses for a Std 4x4 set up, would it be fair to say the straight cut box should see these dropping ( ie more power making it to the wheels) to between 33-30% loss?
Err, how about:
What are the drivetrain losses with a straight cut kit compared to a hellically cut kit?
Working on a 4x4 figure of 35% losses for a Std 4x4 set up, would it be fair to say the straight cut box should see these dropping ( ie more power making it to the wheels) to between 33-30% loss?
#16
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normal mini drop gears are good for well over 110bhp, infact they are stronger then straight cut drops,,
.....however the forces on the bearings would be massive and wouldnt last long
.. ive got straight cut drops ready to go into my mini, worth it just for the noise
.....however the forces on the bearings would be massive and wouldnt last long
.. ive got straight cut drops ready to go into my mini, worth it just for the noise
#17
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Originally Posted by dave cos4x4
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bang on what i thought Doug.
but i'm i not still right.
bang on what i thought Doug.
but i'm i not still right.
Dave, what I meant was that the losses on a SC set are within a couple of percent of the losses of a standard set.
Ie it will NOT free up any significant amount of extra power to the wheels.
(although like Mark says, its application specific the exact amount and the more the standard setup is on its knees with the sideloading the more you can free up, its still never going to be a massive amount though)
#18
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Originally Posted by S1sam
normal mini drop gears are good for well over 110bhp, infact they are stronger then straight cut drops,,
.....however the forces on the bearings would be massive and wouldnt last long
.. ive got straight cut drops ready to go into my mini, worth it just for the noise
.....however the forces on the bearings would be massive and wouldnt last long
.. ive got straight cut drops ready to go into my mini, worth it just for the noise
Indeed, its because of the bearings that you have to replace the drops with SC ones.
#21
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Originally Posted by Chip-3Door
Originally Posted by dave cos4x4
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bang on what i thought Doug.
but i'm i not still right.
bang on what i thought Doug.
but i'm i not still right.
Dave, what I meant was that the losses on a SC set are within a couple of percent of the losses of a standard set.
Ie it will NOT free up any significant amount of extra power to the wheels.
(although like Mark says, its application specific the exact amount and the more the standard setup is on its knees with the sideloading the more you can free up, its still never going to be a massive amount though)
i'm not bothered about freeing power,just loosing it.
if the loss is minimal then i'm happy.....as i did above.
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