Why can't cars gearbox be like motorbikes?

Why can't cars gearbox be like motorbikes?

Author
Discussion

amare32

Original Poster:

2,419 posts

237 months

Friday 20th March 2009
quotequote all
Since I started riding a motorbike a couple of years ago, I've come to love the gearbox on a bike as it's much like a manual car with
clutch but it's sequential rather than an H pattern shift. As I hate DSG/SMG type gearboxes with a passion - just seems like a glorified
auto box with manual override so you never feel 100% in control. I wish that manufacturers would offer cars with a sequential box.

Why do they not offer it in mainstream cars?

pugwash4x4

7,606 posts

235 months

Friday 20th March 2009
quotequote all
longevity, reliability, strength and ease of use.

Asterix

24,438 posts

242 months

Friday 20th March 2009
quotequote all
Because your average driver is an idiot and wouldn't underdstand how to use it.

A very small percentage of people would like it.

Mars

9,477 posts

228 months

Friday 20th March 2009
quotequote all
People wouldn't stand for a clunky sequential. You can buy them "aftermarket" easilty enough for many cars. Have a look at Quaife's website.

amare32

Original Poster:

2,419 posts

237 months

Friday 20th March 2009
quotequote all
Fair enough if reliability is a problem but you'd think that muppets who are not good drivers would find a sequential a godsend.
Shift up to change up, shift down to change down...etc. Can't be that hard?

taldo50

1,357 posts

208 months

Friday 20th March 2009
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correct me if im wrong, but dont rally cars use this technology? seems to work for them? I too being a biker quite like the idea!

Flanders.

6,413 posts

222 months

Friday 20th March 2009
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I'd love it biggrin.

Pesty

42,655 posts

270 months

Friday 20th March 2009
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Mars said:
People wouldn't stand for a clunky sequential. .
Whats cluncky about them?

Smooth as silk and sublime doing clutchless upshifts, Would love to do that in a car.

johnnywgk

2,579 posts

196 months

Friday 20th March 2009
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i used to find it hard to select neutral, 1st time, everytime, on my bikes,
like said above, people wouldn't put up with it.
imagine them old farts on sunday afternoons, the're bad enough with
an auto.

sorry if there's any old farts here, i wasn't talking about you,
i was talking about all the others, hehehe

pugwash4x4

7,606 posts

235 months

Friday 20th March 2009
quotequote all
taldo50 said:
correct me if im wrong, but dont rally cars use this technology? seems to work for them? I too being a biker quite like the idea!
Yes, but then a friend of mine who is a very well known and respected rally driver has gone through his sequential box o his Super1600 a couple of times now- he had to work out whether to shift on full bore, trailing throttle or part throttle.

They are great for some situations but for daily driving a DSG box will be 99% as good and 5 times easier as well as 10 times more reliable.


Schmeeky

4,232 posts

231 months

Friday 20th March 2009
quotequote all
I know, with my Suzukis all it takes is a twitch of a toenail and a flick of the throttle and your next gear is in... quicker than you can blink, and with a lovely mechanical feel to it.. One of the many reasons I love my SV1000..

taldo50

1,357 posts

208 months

Friday 20th March 2009
quotequote all
pugwash4x4 said:
taldo50 said:
correct me if im wrong, but dont rally cars use this technology? seems to work for them? I too being a biker quite like the idea!
Yes, but then a friend of mine who is a very well known and respected rally driver has gone through his sequential box o his Super1600 a couple of times now- he had to work out whether to shift on full bore, trailing throttle or part throttle.

They are great for some situations but for daily driving a DSG box will be 99% as good and 5 times easier as well as 10 times more reliable.
well thats just ruined it for me! would be nice but clearly inadequate in a every day road application!

amare32

Original Poster:

2,419 posts

237 months

Friday 20th March 2009
quotequote all
pugwash4x4 said:
taldo50 said:
correct me if im wrong, but dont rally cars use this technology? seems to work for them? I too being a biker quite like the idea!
Yes, but then a friend of mine who is a very well known and respected rally driver has gone through his sequential box o his Super1600 a couple of times now- he had to work out whether to shift on full bore, trailing throttle or part throttle.

They are great for some situations but for daily driving a DSG box will be 99% as good and 5 times easier as well as 10 times more reliable.
When I ride my GSXR, I never bother with clutchless shifts as I don't want to risk lunching the gearbox. So you can do the same with a car sequential box
to preserve the longevity I'm sure. The thing which I don't like about DSG/SMGs is that without the clutch normal everyday stuff like reversing inch by inch
or pulling off can be a pain.

Frik

13,631 posts

257 months

Friday 20th March 2009
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pugwash4x4 said:
longevity, reliability, strength and ease of use.
You missed out noise.

Edited by Frik on Friday 20th March 23:51

Urban_Ninja

1,885 posts

203 months

Friday 20th March 2009
quotequote all
noise? clunky?

I ride a bike as my only mod of transport and wouldnt say they are noisy or clunky.

Ok mine does clunk going into first, but thats only cause I need to adjust the clutch cable as I dont think it completely disengaging, other than that, its smooth, quiet, easy to use.

Schmeeky

4,232 posts

231 months

Friday 20th March 2009
quotequote all
^^ Bike boxes always seem to 'clunk' going into first, and I have no idea why... but apart from that, they are the smoothest, most seamless changes you could wish to hope for, and one of the many reasons why riding bikes is so damn cool!!!

Pesty

42,655 posts

270 months

Friday 20th March 2009
quotequote all
amare32 said:
When I ride my GSXR, I never bother with clutchless shifts as I don't want to risk lunching the gearbox. So you can do the same with a car sequential box
.
Clutchless shifts are easier on the gearbox. It just slips in naturaly smooth as silk. less mechanical stress than engaging and dissengaging the clutch with the differentionals in engine revs and gear box that occur.

WTFWT

854 posts

237 months

Saturday 21st March 2009
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Pesty said:
amare32 said:
When I ride my GSXR, I never bother with clutchless shifts as I don't want to risk lunching the gearbox. So you can do the same with a car sequential box
.
Clutchless shifts are easier on the gearbox. It just slips in naturaly smooth as silk. less mechanical stress than engaging and dissengaging the clutch with the differentionals in engine revs and gear box that occur.
What he said. Clutchless shifts (when timed right) use less components and are less stressful to the gearbox. You can even 'feel' the benefit when you get it right... plus Suzukis have wonderful gearboxes on the whole - you have no excuse!

130R

6,895 posts

220 months

Saturday 21st March 2009
quotequote all
AFAIK DSG is a sequential manual gearbox but it is two separate manual gearboxes each with their own clutch whereas SMG is just a modified H-pattern gearbox.

I guess normal cars don't have true sequential manual gearboxes because of cost, longevity plus occasional issues finding a gear when not moving.

Edited by 130R on Saturday 21st March 00:43

sniff diesel

13,120 posts

226 months

Saturday 21st March 2009
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amare32 said:
Why do they not offer it in mainstream cars?
Because even a lightweight car weighs 3 times more than a bike. BEC's get through gearboxes quite quickly.