Is a tachometer required on a CAR ?

Shan2nu · 15th June 2005, 22:01

Quote:

Well normally speaking it is important from FE point of view. Like i have decided not to take car above this RPM or so for FE reasons but without a tacho you cant do that..

Check you car manual (when you get it at your first service). They would have mentioned the optimum shift points in each gear wrt speedo read and not engine rpm.

Shifting at the same rpm in every gear isn't the best way to achieve good FE. Shift points change from gear to gear so, it's best to stick with what the manufacturer says.

Shan2nu

turbo_lover · 15th June 2005, 22:28

tacho is very important for dragging ...

if you over rev and hit the limiter the run to the next gear will slow down, since the power does cut out and if you look closely the speedo needle will drop aswell until you shift up ..tacho is a must for that purpose ...hitting the limiter reduces the speed going into the following gear .

for it also help you keep the car in its powerband ...which i feel is important every now and then ..

FE purpose like shan2nu said every car has a shift point which is where the one must shift up /down ...is easily pointed out with the help of a tacho ..

all in all i think tacho is very useful ...

v1p3r · 15th June 2005, 22:38

Montoya...Baleno Lxi has a rev counter.

freakrz · 15th June 2005, 23:35

hey..tach is an integral part..but i dont think its a necessity..well consider a place like bangalore..with heavy traffic...i dont get time to look at it and think ..oh **** its 2K rpm..gotta shift,as city driving requires fast reflexes..you cant take a moment of the road...its not always possible to shift gears considering the tacho....so i think its best usage would be definitley on track...

DCEite · 16th June 2005, 10:06

Quote:

Originally Posted by Shan2nu

Check you car manual (when you get it at your first service). They would have mentioned the optimum shift points in each gear wrt speedo read and not engine rpm.

Shifting at the same rpm in every gear isn't the best way to achieve good FE. Shift points change from gear to gear so, it's best to stick with what the manufacturer says.

Shan2nu

those maruti guys tell me to put 3rd at 20kmph and 4th at 40 kmph and fifth at 45 kmph... :WTF:

do you think its possible with those long gear ratios, unless i want some bullock cart to overtake me..

turbo_lover · 16th June 2005, 10:56

Quote:

Originally Posted by dceite

those maruti guys tell me to put 3rd at 20kmph and 4th at 40 kmph and fifth at 45 kmph... :WTF:

do you think its possible with those long gear ratios, unless i want some bullock cart to overtake me..

thats bull man ... my alto car never pull 5th gear at 45k's neither can an esteem ..i think tachos are a must specially in maruti cars due to the long gears ....
today i drove my alto after a week of driving the corsa , and i constantly found myself shifting into 3rd at 40 ,4th in 60 5th in 80 ...
compared to my driving in corsa i shift to 3rd in 30 thn straight to 5th in 55k .. till 3rd i shift under 2000rpm , to 5th i change in the range of 2400 to 2800 rpm ..

v1p3r · 16th June 2005, 17:02

Dceite...I'm not sure which Maruti you own, but the Baleno will most certainly pull in those gears at those speeds. I can survive by shifting up at 1500 rpm, and I do, which is why I can average 15 in the city, should the need arise!

protege · 16th June 2005, 23:54

For zen (carb).. it's 3rd gear at 20kmph, 4th at 30 kmph, 5th at 40kmph.. If the road is empty and I want to drive peacefully at ease.. I go to 5th at 32+ kmph only. When I drove my friends Xing.. I was always shifting at the Maruti specified shifts points not knowing that Hyundai have a different gear ratios. The first car I bought had a tacho.. I got used to the tacho (got addicted in fact) that I never ever used to look at the speed. My only concern was that I should never rev beyond 2k.. otherwise I'd screw up my engine. Anyway.. zen doesn't have it. But surely will put a pricol tacho this year.

turbo_lover · 17th June 2005, 00:08

that whacked man ... how come the car dusnt stall >???

you should be shifting up to 5th after 2nd gear!! .. i shift to 2nd at 30ks in my alto ..
even that cant pull off 5th gear in 40ks ..it cant but its on te verge of stalling ,it almost sits there till the revs rise ...

revtech · 17th June 2005, 00:12

hey protege i want to put a tachometer in my zen too.so just wanted to gather some information.where i can get it ?? for how much and how do i caliberate it perfectly.is this pricol tacho your talking about good ?? hey satya isnt this the one you have on your zen.how is it any problems with it? and how much did it cost you? oh yeah and will i get it in opera house ??

Rev

DCEite · 17th June 2005, 10:30

Quote:

Originally Posted by v1p3r

Dceite...I'm not sure which Maruti you own, but the Baleno will most certainly pull in those gears at those speeds. I can survive by shifting up at 1500 rpm, and I do, which is why I can average 15 in the city, should the need arise!

well i meant to say that i can drive it that way(wagonr).. but is there any fun in that??.. even autorikshaws will honk at me...

but as far as your Baleno is concerned, its in a different league all together.. if i were you, i will shift it up at 4000 rpm always and give those skoda and ohc guys some dust in their mouth...

v1p3r · 17th June 2005, 16:46

Quote:

Originally Posted by dceite

but as far as your Baleno is concerned, its in a different league all together.. if i were you, i will shift it up at 4000 rpm always and give those skoda and ohc guys some dust in their mouth...

Hahaha...dceite...But I do do that! Normally I drive at 1500 rpm to keep my average FE high. On weekends I have a little "fun" with OHCs and their likes. Nothing looks better in my rear-view than a decked-up Lancer!

GTO · 17th June 2005, 19:55

Quote:

if I over-rev occassionally the rev limiter kicks in.

Better watch it, Steeroid. If its mechanical over-revving, you are going to be carrying your engine home.

GTO

protege · 19th June 2005, 11:05

Hey Revtech,
I got the pricol recommendation from Satya only.. the zen guru. According to him, it's really easy to fit. need to bore two holes for mounting.. and costs about Rs 800.. from his pm it seemed it's easily available everyhere.. and it doesn't have many electronics so can be callibrated easily by mechanic.. me thinks.

Steeroid · 19th June 2005, 11:33

Quote:

Originally Posted by GTO

Better watch it, Steeroid. If its mechanical over-revving, you are going to be carrying your engine home.

GTO

'mechanical over-revving' ? What other type is there, and how do they differ from each other?

15th June 2005, 22:28	#32
turbo_lover Senior - BHPian Join Date: Dec 2004 Location: Toronto Posts: 1,377 Thanked: 9 Times	tacho is very important for dragging ... if you over rev and hit the limiter the run to the next gear will slow down, since the power does cut out and if you look closely the speedo needle will drop aswell until you shift up ..tacho is a must for that purpose ...hitting the limiter reduces the speed going into the following gear . for it also help you keep the car in its powerband ...which i feel is important every now and then .. FE purpose like shan2nu said every car has a shift point which is where the one must shift up /down ...is easily pointed out with the help of a tacho .. all in all i think tacho is very useful ...
	() Thanks

15th June 2005, 22:38	#33
v1p3r Senior - BHPian Join Date: Feb 2005 Location: BLR / DXB / LON Posts: 5,364 Thanked: 7,505 Times View My Garage Infractions: 0/1 (7)	Montoya...Baleno Lxi has a rev counter.
	() Thanks

15th June 2005, 23:35	#34
freakrz BHPian Join Date: Nov 2004 Location: Visakhapatnam Posts: 176 Thanked: 52 Times View My Garage	hey..tach is an integral part..but i dont think its a necessity..well consider a place like bangalore..with heavy traffic...i dont get time to look at it and think ..oh **** its 2K rpm..gotta shift,as city driving requires fast reflexes..you cant take a moment of the road...its not always possible to shift gears considering the tacho....so i think its best usage would be definitley on track...
	() Thanks

16th June 2005, 17:02	#37
v1p3r Senior - BHPian Join Date: Feb 2005 Location: BLR / DXB / LON Posts: 5,364 Thanked: 7,505 Times View My Garage Infractions: 0/1 (7)	Dceite...I'm not sure which Maruti you own, but the Baleno will most certainly pull in those gears at those speeds. I can survive by shifting up at 1500 rpm, and I do, which is why I can average 15 in the city, should the need arise!
	() Thanks

16th June 2005, 23:54	#38
protege BHPian Join Date: Apr 2005 Location: NJ Posts: 51 Thanked: 0 Times View My Garage	For zen (carb).. it's 3rd gear at 20kmph, 4th at 30 kmph, 5th at 40kmph.. If the road is empty and I want to drive peacefully at ease.. I go to 5th at 32+ kmph only. When I drove my friends Xing.. I was always shifting at the Maruti specified shifts points not knowing that Hyundai have a different gear ratios. The first car I bought had a tacho.. I got used to the tacho (got addicted in fact) that I never ever used to look at the speed. My only concern was that I should never rev beyond 2k.. otherwise I'd screw up my engine. Anyway.. zen doesn't have it. But surely will put a pricol tacho this year.
	() Thanks

17th June 2005, 00:08	#39
turbo_lover Senior - BHPian Join Date: Dec 2004 Location: Toronto Posts: 1,377 Thanked: 9 Times	that whacked man ... how come the car dusnt stall >??? you should be shifting up to 5th after 2nd gear!! .. i shift to 2nd at 30ks in my alto .. even that cant pull off 5th gear in 40ks ..it cant but its on te verge of stalling ,it almost sits there till the revs rise ...
	() Thanks

17th June 2005, 00:12	#40
revtech Senior - BHPian Join Date: Nov 2004 Location: Bombay Posts: 1,992 Thanked: 39 Times View My Garage	hey protege i want to put a tachometer in my zen too.so just wanted to gather some information.where i can get it ?? for how much and how do i caliberate it perfectly.is this pricol tacho your talking about good ?? hey satya isnt this the one you have on your zen.how is it any problems with it? and how much did it cost you? oh yeah and will i get it in opera house ?? Rev
	() Thanks

19th June 2005, 11:05	#44
protege BHPian Join Date: Apr 2005 Location: NJ Posts: 51 Thanked: 0 Times View My Garage	Hey Revtech, I got the pricol recommendation from Satya only.. the zen guru. According to him, it's really easy to fit. need to bore two holes for mounting.. and costs about Rs 800.. from his pm it seemed it's easily available everyhere.. and it doesn't have many electronics so can be callibrated easily by mechanic.. me thinks.
	() Thanks