Team-BHP > Under the Hood > Technical Stuff

Closed Thread
Thread Tools Search this Thread
Old 9th May 2006, 11:13   #1
Join Date: May 2006
Location: faridabad
Posts: 1
Thanked: 0 Times
Default purpose of tachometer

i heard the tachometer should be used to help in the gerashifting at 2000rpm ,can anybody exlain it in detail.
jagjeet is offline  
Old 9th May 2006, 16:36   #2
sidharth_j's Avatar
Join Date: Nov 2005
Location: Trivandrum
Posts: 131
Thanked: 12 Times


To get maximum fuel efficiency,a car has to be driven in certain ways.

The general guideline is to shift earlier rather than later.

The tachometer essentially helps to shoot for a target of about 1500 to 2000 RPM in the next gear, when accelerating gently. This is especially true for diesels where the torque band peaks at lower RPM than in petrol engines.

Remember that, the engine's efficiency is greatest at near to its maximum torque speed, which is usually half to two thirds of it redline rpm.

Hope this helps
sidharth_j is offline  
Old 27th June 2008, 15:47   #3
Distinguished - BHPian
condor's Avatar
Join Date: Jun 2006
Location: Speed-brkr City
Posts: 12,406
Thanked: 7,181 Times

Mods, pls close / del -or- merge with :
condor is offline  
Old 27th June 2008, 16:12   #4
Distinguished - BHPian
Technocrat's Avatar
Join Date: Feb 2004
Location: GTA
Posts: 14,826
Thanked: 2,657 Times

Thanks Condor

Btw this is a two year old thread & the one you quoted is three years old

Thread Closed
Technocrat is offline  
Closed Thread

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
EGR system - What's it purpose & when does the EGR valve open/close? rranjith_kum Technical Stuff 62 29th May 2019 22:45
Tyre Polish - Does it serve any purpose ? mithun Tyre & Alloy wheel Section 35 28th August 2015 20:07
CELEBRITY:which car they drive? for which purpose? Bob Shifting gears 24 2nd July 2015 07:36
Mercedes-Benz Unimog : Best offroader amongst special-purpose vehicles hanmust 4x4 Vehicles 12 12th February 2011 17:50
Purpose? To not have any. Tarang Introduce yourself 3 20th August 2010 08:02

All times are GMT +5.5. The time now is 13:26.

Copyright 2000 - 2020,
Proudly powered by E2E Networks