[nikunj_cal]

Originally Posted by tsk1979

Open your car manual. That has maximum speeds in each gear. Even for cars like indica where a tachomater is present, they give max speeds in each gear and not rpm.

Went through my manual , there is a small article on Pg 5-7 there but it only mentions to keep the car at moderate speeds at different gears .

Indica has it , never seen the manual but the speedlimits sticker was stuck on the windshield itself !!

[tsk1979]

In that case a good thing would be to restrict your rpm to about 50% of redline. So you can rev upto 2500rpm normally, and in extreme cases go upto around 65% of max rpm.
In speed terms it comes to around
20kmph 1st gear
40 kmph second gear
65 kmph third gear
90 kmph in 4th gear and around 120kmph in 5th gear.

[DieselFan]

Originally Posted by nikunj_cal

Went through my manual , there is a small article on Pg 5-7 there but it only mentions to keep the car at moderate speeds at different gears .

Indica has it , never seen the manual but the speedlimits sticker was stuck on the windshield itself !!

For Swift D use the following as a Thumb rule -

shift from 1-2 - after 10-15 KMPH
Shift from 2-3 -after 25-30 KMPH
Shift from 3-4 after 40-45 KMPH
Shift from 4-5 after 60 KMPH

But again this is a thumb rule for a flat road. For Steep climb or coming down slopes adjust accordingly.

Hope this helps.

[Jaggu]

tsk is almost bang on rpm's follow those speeds as a guideline

[austere_sly]

Yesterday I got filled Nitrogen in tyres from Indian Oil petrol pump opposite EIL building in Bhikaji cama place. There was no extra charge for nitrogen. I feel the ride is smoother than before.

[BUSA]

Thanks Jaggu, the car feels much better with 33 in the front and 31 in the rear.

[Jaggu]

what were you running earlier?

[nikunj_cal]

Originally Posted by tsk1979

In that case a good thing would be to restrict your rpm to about 50% of redline. So you can rev upto 2500rpm normally, and in extreme cases go upto around 65% of max rpm.
In speed terms it comes to around
20kmph 1st gear
40 kmph second gear
65 kmph third gear
90 kmph in 4th gear and around 120kmph in 5th gear.

Hey thks a lot tsk , i think i will take a print of the above and paste it on my windshield ! Also are the above at 50% revs or 65 % revs ??

[Vid6639]

Originally Posted by nikunj_cal

Hey thks a lot tsk , i think i will take a print of the above and paste it on my windshield ! Also are the above at 50% revs or 65 % revs ??

Pls. dont post it on your windshield yaar. atleast on your steering boss. how will you see if you put on windshield?

[anshurao]

@nikunj_cal: I was at the dealer today to explain this problem, I met a fellow VDi owner who could reproduce this problem, They changed some unit near the accelerator peddal, No use, then they changed the ECU again of no use..This time they were to check his fuel line. So the dealer has told me that once they find the cause they would call me. And as far as my problem goes, I havent faced it for the last few weeks. Will keep you posted as soon as I get an update. Till then guess you will have to live with it :(

[anshurao]

@jaggu: Hey Jaggu, I have the Bridgestone Potenzas 185s on the regular rims now, with tyre pressure 33F and 30R. Seems good as of now. Havent driven it much. But the car feels good. Thanks

[anshurao]

Originally Posted by vid6639

Pls. dont post it on your windshield yaar. atleast on your steering boss. how will you see if you put on windshield?

Good one, but i think this needs to get into your system and not change gears looking at some chart. Heavy loads etc may require you to rev a bit extra. You need to feel your car. And based on the conditions change gears.

[BUSA]

Originally Posted by Jaggu

what were you running earlier?

30 all around, now with the new pressure there is a marked improvement in the ride quality. I think i should try out 36F and 33R, since thats what MUL advises and whatever tyres the weight is the same so pressure should be the same too?

[mobike008]

Originally Posted by anshurao

Good one, but i think this needs to get into your system and not change gears looking at some chart. Heavy loads etc may require you to rev a bit extra. You need to feel your car. And based on the conditions change gears.

There's a lot of talk about rpms and all. a few years ago, how did people drive without rpm meters? Ofcourse i also agree that cars were not so fast then.

Buddy, you just need to keep that chart on your dashboard for a few days to get a hang of it then onwards it should be pure instinct

[Jaggu]

there is a difference in the contact patch area when you upsize as well as the volume decrease when dia (disc size) increase, my inference is from bikes where upsize (width) tyres have lesser pressure for same dia and hence company recommended pressure might be too choppy a ride