发表于 2013-01-13 00:29 IP属地：山西
2.4的车扭矩在220-240NM, 125kw-137km（非直喷/直喷），
可以看出在升级到直喷发动机后，6T40的最大承担扭矩已经和直喷发动机的最大扭矩相同，这就是为什么升级到6T45E的原因，而不是为了临时解决变速箱的设计问题。想强调的是,如果卡簧设计有问题,即使和发动机的匹配没有问题,变速箱照样挂掉.这和变速箱能承受的最大扭矩无关!
3.0的扭矩296NM, 190kw, 匹配6T45E(MH8).
引用: 6T45(MH7)变速箱技术数据在GM加拿大网站找到的数据, 最大承受发动机160KW的功率
而3.0最大功率190KW 这样匹配 容易使变速箱损坏！SGM偷工减料 应召回3.0 并免费换成6T70(MH2)变速箱 承担客户的误工费等损失！
//club.autohome.com.cn/bbs/thread-c-719-4464680-1.html
3.0车主变速箱故障
//www.qctsw.com/tousu/content/3811.html
3.0变速箱质量问题！
其实我感觉不是质量问题 而是匹配问题导致的
| 2010 Hydra-Matic 6T40 (MH8) |
06/05/2009 |
Type:
| Six speed front-wheel-drive, electronically controlled, automatic overdrive transaxle with an electronically controlled torque converter clutch. |
| Maximum Engine power ( hp/kW ) | 180 hp ( 134 kW ) |
Maximum engine torque:
| 177 lb-ft (240 Nm) |
| Maximum gearbox torque: | 277 lb-ft (375 Nm) - All gears |
Gear ratios:
| MH8 |
First
| 4.58 |
Second
| 2.96 |
| Third: | 1.91 |
| Fourth: | 1.45 |
| Fifth | 1 |
| Sixth | 0.75 |
Reverse:
| -2.94 |
Final Drive Ratio:
| 2.89 |
| Maximum input speed: | Rev 7000 rpm |
| 1-2 7000 rpm |
| 2-3 7000 rpm |
| 3-4 7000 rpm |
| 4-5 6778 rpm |
| 5-6 5800 rpm |
Maximum validated gross vehicle weight:
| 1996 kg (4400 lbs |
| 2010 Hydra-Matic 6T45 (MH7) |
06/05/2009 |
Type:
| Six speed front-wheel-drive, electronically controlled, automatic overdrive transaxle with an electronically controlled torque converter clutch. |
| Maximum Engine power ( hp/kW ) | 215 hp ( 160 kW ) |
Maximum engine torque:
| 232 lb-ft (315 Nm) |
| Maximum gearbox torque: | 314 lb-ft (425 Nm) - All gears |
Gear ratios:
| MH7 |
First
| 4.58 |
Second
| 2.96 |
| Third: | 1.91 |
| Fourth: | 1.45 |
| Fifth | 1 |
| Sixth | 0.75 |
Reverse:
| -2.94 |
Final Drive Ratio:
| 2.89 |
| Maximum input speed: | Rev 7000 rpm |
| 1-2 7000 rpm |
| 2-3 7000 rpm |
| 3-4 7000 rpm |
| 4-5 7000 rpm |
| 5-6 7000 rpm |
Maximum validated gross vehicle weight:
| 2200 kg (4850 lbs) |
| 2010 Hydra-Matic 6T70 (MH2) FWD |
06/05/2009 |
Type:
| Six speed front-wheel-drive, electronically controlled, automatic overdrive transaxle with an electronically controlled torque converter clutch. |
| Engine range: | 3.5L - 3.6L |
Maximum engine torque:
| 280 lb-ft (380 Nm) |
| Maximum gearbox torque: | 450Nm 1st gear / 515 Nm 2nd-6th gears |
Gear ratios:
| MH2 |
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本帖最后由 testdrive 于 2013-1-13 00:30 编辑 ]
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