Go Back   Team-BHP > BHP India > The Indian Car Scene


Closed Thread
 
Thread Tools Search this Thread
Old 20th April 2015, 18:22   #166
Senior - BHPian
 
Join Date: Dec 2007
Location: Bangalore
Posts: 1,062
Thanked: 291 Times
Default Re: PICS: Tata begins testing Nano Twist Active AMT

Quote:
Originally Posted by Motard_Blr View Post
The updated Nano look good, the AMT and the hatch are good additions to make the Nano the perfect city car. But in terms of functional upgrades, I was expecting disc brakes at the front and a 5 speed gearbox. These would have been great improvements to the Nano. Nevertheless, I'm eager to test drive the new Nano and consider whether to upgrade my 2011 Nano to the Easy Shift model.
The disk brakes would have been perfect.

But, on the fifth gear, the 4th gear itself so unusable in the Nano. It is just for cruising with no acceleration whatsoever.
blue_pulsar is offline  
Old 20th April 2015, 22:45   #167
Distinguished - BHPian
 
condor's Avatar
 
Join Date: Jun 2006
Location: Speed-brkr City
Posts: 10,740
Thanked: 4,319 Times
Default Re: PICS: Tata begins testing Nano Twist Active AMT

The AMT version is said to have a FE of 21.9 kmpl. This is about 12% lower than the MT version. Is this difference a litttle too much ?
Quote:
Originally Posted by blue_pulsar View Post
TBut, on the fifth gear, the 4th gear itself so unusable in the Nano. It is just for cruising with no acceleration whatsoever.
But that fourth is on the MT version. The AMT version would have a different gear ratio ?

Last edited by condor : 20th April 2015 at 22:46.
condor is offline   (1) Thanks
Old 20th April 2015, 22:54   #168
Senior - BHPian
 
Join Date: Dec 2007
Location: Bangalore
Posts: 1,062
Thanked: 291 Times
Default Re: PICS: Tata begins testing Nano Twist Active AMT

Quote:
Originally Posted by condor View Post
But that fourth is on the MT version. The AMT version would have a different gear ratio ?
I doubt that would make much difference. The real issue with the nano is that it has a very small engine. The engine should have been upgraded. A missed opportunity for Tata Motors.
blue_pulsar is offline   (1) Thanks
Old 21st April 2015, 09:50   #169
BHPian
 
Join Date: Sep 2013
Location: Bangalore
Posts: 402
Thanked: 576 Times
Default Re: PICS: Tata begins testing Nano Twist Active AMT

Quote:
Originally Posted by blue_pulsar View Post
The disk brakes would have been perfect.

But, on the fifth gear, the 4th gear itself so unusable in the Nano. It is just for cruising with no acceleration whatsoever.
Quote:
Originally Posted by blue_pulsar View Post
I doubt that would make much difference. The real issue with the nano is that it has a very small engine. The engine should have been upgraded. A missed opportunity for Tata Motors.
The problem with 4th gear is that it's too highly geared (km/h/1000 rpm). So unless you're doing at least 40 km/h, 4th gear can't be used. What's really needed, in my opinion, is 5 gears with the first 4 being slightly lower than the existing 4 and a new 5th that slightly higher than the existing 4th.
The lower gears would help the Nano climb up slopes with less effort and the taller top gear would help it cruise better.

The AMT kit is an add-on to the existing gearbox. There would not be any changes in gearing.
Motard_Blr is offline  
Old 21st April 2015, 10:01   #170
Distinguished - BHPian
 
condor's Avatar
 
Join Date: Jun 2006
Location: Speed-brkr City
Posts: 10,740
Thanked: 4,319 Times
Default Re: PICS: Tata begins testing Nano Twist Active AMT

Quote:
Originally Posted by Motard_Blr View Post
The problem with 4th gear is that it's too highly geared (km/h/1000 rpm). ... The AMT kit is an add-on to the existing gearbox. There would not be any changes in gearing.
The AMT is said to have 5 gears. If true, then this problem will be taken care of, at least to some extent.
condor is offline   (1) Thanks
Old 21st April 2015, 14:55   #171
Distinguished - BHPian
 
condor's Avatar
 
Join Date: Jun 2006
Location: Speed-brkr City
Posts: 10,740
Thanked: 4,319 Times
Default Re: PICS: Tata begins testing Nano Twist Active AMT

Update / Correction:
The 5 gears are 4+1.
Got this confirmed today.
condor is offline   (2) Thanks
Old 21st April 2015, 18:58   #172
BHPian
 
FourWheelDrift's Avatar
 
Join Date: Jan 2008
Location: Mumbai
Posts: 483
Thanked: 189 Times
Default Re: PICS: Tata begins testing Nano Twist Active AMT

Quote:
Originally Posted by blue_pulsar View Post
I doubt that would make much difference. The real issue with the nano is that it has a very small engine. The engine should have been upgraded. A missed opportunity for Tata Motors.
I wonder if any of the reputed tuners in India have worked their magic on the Nano engine, to liberate a few more horsepower ?

Maybe even remove the speed limiter ?

I think the 2 cylinder engine has been around long enough for someone to have tried and figured out what works.

Cheers,

FourWheelDrift
FourWheelDrift is offline   (1) Thanks
Old 21st April 2015, 23:24   #173
BHPian
 
Join Date: May 2011
Location: India
Posts: 332
Thanked: 289 Times
Default Re: PICS: Tata begins testing Nano Twist Active AMT

Quote:
Originally Posted by FourWheelDrift View Post
I wonder if any of the reputed tuners in India have worked their magic on the Nano engine, to liberate a few more horsepower ?

Maybe even remove the speed limiter ?

I think the 2 cylinder engine has been around long enough for someone to have tried and figured out what works.
The speed limit is not to protect the engine, but rather to protect the wheel bearings which have a certain upper limit of speed.

It might not be that much fun to have the speed limit removed, I suspect
john doe is offline   (1) Thanks
Old 22nd April 2015, 08:28   #174
BHPian
 
FourWheelDrift's Avatar
 
Join Date: Jan 2008
Location: Mumbai
Posts: 483
Thanked: 189 Times
Default Re: PICS: Tata begins testing Nano Twist Active AMT

Quote:
Originally Posted by john doe View Post
The speed limit is not to protect the engine, but rather to protect the wheel bearings which have a certain upper limit of speed.

It might not be that much fun to have the speed limit removed, I suspect
Not sure that this is fact or myth.

If that is indeed the case, I wonder how many Nano owners have had issues with wheel bearing failures ?

Cheers,

FourWheelDrift
FourWheelDrift is offline   (1) Thanks
Old 23rd April 2015, 11:00   #175
BHPian
 
Join Date: May 2011
Location: India
Posts: 332
Thanked: 289 Times
Default Re: PICS: Tata begins testing Nano Twist Active AMT

Quote:
Originally Posted by FourWheelDrift View Post
Not sure that this is fact or myth.

If that is indeed the case, I wonder how many Nano owners have had issues with wheel bearing failures ?

Cheers,

FourWheelDrift
Logically, no Nano owners will report wheel bearing failures since the speed limit in the car prevents over-speeding. Right?
john doe is offline   (1) Thanks
Old 23rd April 2015, 19:35   #176
BHPian
 
FourWheelDrift's Avatar
 
Join Date: Jan 2008
Location: Mumbai
Posts: 483
Thanked: 189 Times
Default Re: PICS: Tata begins testing Nano Twist Active AMT

Quote:
Originally Posted by john doe View Post
Logically, no Nano owners will report wheel bearing failures since the speed limit in the car prevents over-speeding. Right?
Well, not really.

If the bearings were as failure-prone above 105 kmph as you say they are, then those driving their Nanos on highways at around 90-100 kmph regularly (well within the cruising speed of the Nano, given it's tall gearing), would see reduced wheel bearing life with high mileage usage ... correct ?

Is that indeed the case ?

If the speed limiter were to be increased to say 115 kmph, to enable a 100-105kmph cruise on a highway, do you believe that would drastically reduce the life of the bearings ?

Cheers,

FourWheelDrift
FourWheelDrift is offline  
Old 24th April 2015, 15:15   #177
BHPian
 
uday.ere's Avatar
 
Join Date: Aug 2008
Location: Bangalore
Posts: 461
Thanked: 594 Times
Default Re: PICS: Tata begins testing Nano Twist Active AMT

As per a post on the Tata Nano Facebook page, the unveil is supposed to happen today.

Pic from their facebook page -
Attached Images
 
uday.ere is offline   (4) Thanks
Old 24th April 2015, 15:37   #178
BHPian
 
Join Date: Mar 2010
Location: Hyderabad
Posts: 315
Thanked: 120 Times
Default Re: PICS: Tata begins testing Nano Twist Active AMT

If I understand correctly. The launch is scheduled for today only. However, wasn't able to find the timing of the launch. Many people have asked about the timing on nano facebook page.
ottocycle is online now  
Old 24th April 2015, 17:07   #179
BHPian
 
madhu33's Avatar
 
Join Date: Aug 2013
Location: Mumbai
Posts: 336
Thanked: 293 Times
Default Re: PICS: Tata begins testing Nano Twist Active AMT

Sharing some more details .
This as per me is a very good option for many routine chores in day to day life.
Please remember the increasing costs of rickshaws and taxis.
The ladies in the house might just love the practicality.

The improvements highlighted also are significant.
Its good to see Tata making some improvement on the safety front .
However as is the case with most of the launches in india no sta rratings of the crash tests being published.
Still would like to believe the Gen x Nano being a little more safer:
Attached Thumbnails
PICS: Tata begins testing Nano Twist Active AMT-img_0290.jpg  

PICS: Tata begins testing Nano Twist Active AMT-img_0291.jpg  


Last edited by madhu33 : 24th April 2015 at 17:11.
madhu33 is offline   (13) Thanks
Old 24th April 2015, 17:22   #180
BHPian
 
uday.ere's Avatar
 
Join Date: Aug 2008
Location: Bangalore
Posts: 461
Thanked: 594 Times
Default Re: PICS: Tata begins testing Nano Twist Active AMT

Quote:
Originally Posted by madhu33 View Post
Sharing some more details .
This as per me is a very good option for many routine chores in day to day life.
The ladies in the house might just love the practicality.
Thanks for sharing. The ladies may also like the new "Persian Rose" shade that they have indicated here. The purple was already very popular.
uday.ere is offline  
Closed Thread


Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Tata Nano Twist XT : Driven Aditya Test-Drives & Initial Ownership Reports 646 4th September 2016 12:57
Maruti: Alto K10 AMT vs Celerio AMT pahwa Hatchbacks 54 5th October 2015 22:49
Tata Nano Twist XE launched at Rs. 2.06 lakh Aditya The Indian Car Scene 14 12th February 2015 13:38


All times are GMT +5.5. The time now is 03:26.

Copyright 2000 - 2017, Team-BHP.com
Proudly powered by E2E Networks