Comments on: ZF unveils new 8-speed automatic gearbox http://paultan.org/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/ Paul Tan on the Automotive Industry Sat, 21 Nov 2009 23:35:00 +0800 http://wordpress.org/?v=2.8.6 hourly 1 By: juicer http://paultan.org/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-212581 juicer Fri, 20 Feb 2009 13:23:50 +0000 http://paultan.org/archives/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-212581 good la , if spoil easy la , sell and make lost.and owe bank ask ur parent money to service the gearbox good la , if spoil easy la , sell and make lost.and owe bank

ask ur parent money to service the gearbox

]]> By: acbc http://paultan.org/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85595 acbc Fri, 04 May 2007 12:53:08 +0000 http://paultan.org/archives/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85595 Good la... now can brag with manual boys... I've more ratios than yours! Good la… now can brag with manual boys… I’ve more ratios than yours!

]]> By: Mayonaise http://paultan.org/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85551 Mayonaise Fri, 04 May 2007 08:27:42 +0000 http://paultan.org/archives/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85551 If I see the picture correctly, I count 4 planetary gearsets, each planetery gearset has 2 gear ratios (one of the gearset should have a reverse gear ratio), that makes 8 forward gear ratios in total... Amazing piece of engineering... If I see the picture correctly, I count 4 planetary gearsets, each planetery gearset has 2 gear ratios (one of the gearset should have a reverse gear ratio), that makes 8 forward gear ratios in total… Amazing piece of engineering…

]]> By: 4G63T DSM http://paultan.org/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85515 4G63T DSM Fri, 04 May 2007 05:58:17 +0000 http://paultan.org/archives/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85515 viceice said, May 4, 2007 @ 9:31 am I guess ‘Fifth Gear’ is going to have to rename itself to stay current… lol -------- LOL... Eventually cars will come with no gears. (ie CVTs), or in-wheel electric motors. What then? viceice said,
May 4, 2007 @ 9:31 am

I guess ‘Fifth Gear’ is going to have to rename itself to stay current… lol

——–

LOL… Eventually cars will come with no gears. (ie CVTs), or in-wheel electric motors. What then?

]]> By: viceice http://paultan.org/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85484 viceice Fri, 04 May 2007 01:31:42 +0000 http://paultan.org/archives/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85484 I guess 'Fifth Gear' is going to have to rename itself to stay current... lol I guess ‘Fifth Gear’ is going to have to rename itself to stay current… lol

]]> By: 4G63T DSM http://paultan.org/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85472 4G63T DSM Fri, 04 May 2007 00:51:42 +0000 http://paultan.org/archives/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85472 In most situations, a CVT will work best. However, CVTs have not proven to work very well/reliably with very high powered cars, hence the dependence on a conventional automatic with discreet gears. I wonder why no other manufacturer has "re-created" the old mitsubishi 4 x 2 gearbox. With 4 forward gears and 2 final drives, it effectively makes an 8 speed manual (if you can shift fast enough). Imagine a ultra high secondary final drive matched with 4-5 gears. In most situations, a CVT will work best. However, CVTs have not proven to work very well/reliably with very high powered cars, hence the dependence on a conventional automatic with discreet gears.

I wonder why no other manufacturer has “re-created” the old mitsubishi 4 x 2 gearbox. With 4 forward gears and 2 final drives, it effectively makes an 8 speed manual (if you can shift fast enough). Imagine a ultra high secondary final drive matched with 4-5 gears.

]]> By: PTAllTheBest http://paultan.org/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85454 PTAllTheBest Thu, 03 May 2007 21:15:27 +0000 http://paultan.org/archives/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85454 It make sense in fuel consumption. But would it make impact on the clutch usage. It make sense in fuel consumption. But would it make impact on the clutch usage.

]]> By: proton GL http://paultan.org/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85433 proton GL Thu, 03 May 2007 15:52:01 +0000 http://paultan.org/archives/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85433 or it means , cvt is not yet proven reliable for the same load, 8 speed means busy shifting, for optimization. anyway ..piece of engineering or it means , cvt is not yet proven reliable for the same load,
8 speed means busy shifting, for optimization.

anyway ..piece of engineering

]]> By: proton GL http://paultan.org/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85432 proton GL Thu, 03 May 2007 15:45:11 +0000 http://paultan.org/archives/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85432 my fifth gear broke, aargh never mind, i still got seven more, my fifth gear broke, aargh never mind, i still got seven more,

]]> By: kei9 http://paultan.org/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85420 kei9 Thu, 03 May 2007 14:52:07 +0000 http://paultan.org/archives/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85420 i agree.... i agree….

]]> By: LittleFire85 http://paultan.org/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85418 LittleFire85 Thu, 03 May 2007 14:45:29 +0000 http://paultan.org/archives/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85418 Well this is a auto gear box... In reality the more gear you have, the more better the gear ratio is, and at high speed cruising your rpm will be lower compare to the less gear auto, so save fuel. I think Lexus is the one using the 8-speed first.. And it will be smoother to change coz of close ratio.. If new Proton Satria Gti uses 6-speed manual i already very happy liau, Hahaha.. Toyota levin 20v black top uses the 6-speed manual during 97-98. And a lot of ppl like it, even half-cuts are hot cakes and expensive.. almost RM6k.. Why? Coz it is fuel saving, and the close ratio make it great in track.. easy to clock top speed and fast changing gears to match the road situation.. Well this is a auto gear box… In reality the more gear you have, the more better the gear ratio is, and at high speed cruising your rpm will be lower compare to the less gear auto, so save fuel. I think Lexus is the one using the 8-speed first.. And it will be smoother to change coz of close ratio.. If new Proton Satria Gti uses 6-speed manual i already very happy liau, Hahaha.. Toyota levin 20v black top uses the 6-speed manual during 97-98. And a lot of ppl like it, even half-cuts are hot cakes and expensive.. almost RM6k.. Why? Coz it is fuel saving, and the close ratio make it great in track.. easy to clock top speed and fast changing gears to match the road situation..

]]> By: kei9 http://paultan.org/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85413 kei9 Thu, 03 May 2007 14:36:09 +0000 http://paultan.org/archives/2007/05/03/zf-unveiled-new-8-speed-automatic-gearbox/#comment-85413 too much gear man! too much gear man!

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