Swift tire pressure and fixing spare alloy wheel doubt

ece2k2 · 10th March 2008, 15:03

Guys,

I am hearing a short low volume "wishhhhk" kind of sound (as if some air is escaping from the tires) when the front tires goes over speed breakers. Is this a problem or a normal scenario. This happens with the front tires at different air pressures (28 or 30 or 32 psi), so does not seem to be an issue due to the tire pressure.

- Karthik.

Jaggu · 10th March 2008, 16:09

Its the car shokies working

binz · 10th March 2008, 16:16

Quote:

Originally Posted by ece2k2

Guys,

I am hearing a short low volume "wishhhhk" kind of sound (as if some air is escaping from the tires) when the front tires goes over speed breakers. Is this a problem or a normal scenario. This happens with the front tires at different air pressures (28 or 30 or 32 psi), so does not seem to be an issue due to the tire pressure.

- Karthik.

Its normal,..suspension is doing its job.Nothing to worry about.

ece2k2 · 10th March 2008, 17:19

thanks Jaggu and binz - that is comforting. I got concerned about this because I have never heard this sound from my Swift Vxi. I could not hear this kind of noise from my Swift LDi's rear tires either. So looks like a different front suspension setup for Swift Diesel for the engine weight!

s0uljah · 21st March 2008, 09:30

I was running 30 / 28 for the front and rear combo and it does eat into the mileage a fair bit.

Iv been getting 13ish with a combo of bumper to bumper traffic and also some late night 4000rpm shifts. Wasnt a 100% A/C person but now gotten accustomed to it :-|

Jaggu · 21st March 2008, 11:02

s0uljah: in your case the air pressure might be just about ok since you are running 205's on 15 inch, right?

RufRoc · 21st March 2008, 11:14

Quote:

Originally Posted by ece2k2

I upgraded my Swift LDi tires to Michelin XM1+ Energy 185/70/R14 mated with Lenso 14" alloy rims

To my knowledge (when I last checked) Lenso didn't have alloys in 14" . Which model is yours?

Btw, hope you've found your sweet spot in terms of handling and ride comfort.

s0uljah · 21st March 2008, 19:48

Yep Jaggu, 205/55/15 it is. 32/30 combo can get hella bumpy and uncomfy.

Is the stress on alloys with the 2 psi difference negligible or is there a serious amount of stress transfered ?

Jaggu · 21st March 2008, 21:29

what i know is, as the width increases and the profile decreases, psi can be dropped marginally without much impact on tyres or the alloys. So a 2 pound drop shouldnt be big deal. I would rather worry about those unsuspecting CRATERS at high speeds, for which a 2 psi diff might not really help.

PatienceWins · 21st March 2008, 21:57

Congrats!!

The price you have got seems good. I was quoted 3600 for a XM1+ 185/65/ R14 for my Getz by Sai Iyengar, Lal Bagh Road.

My belief is that that XM1+ is comfort oriented tyre with decent grip. No tyre noise. I plan to upgrade to XM1+ once the stock tyres are done.

How do you find the ride and handling with XM1+?

10th March 2008, 15:03	#16
ece2k2 BHPian Join Date: Jun 2005 Location: Coimbatore Posts: 524 Thanked: 349 Times	clarification about some noise Guys, I am hearing a short low volume "wishhhhk" kind of sound (as if some air is escaping from the tires) when the front tires goes over speed breakers. Is this a problem or a normal scenario. This happens with the front tires at different air pressures (28 or 30 or 32 psi), so does not seem to be an issue due to the tire pressure. - Karthik.
	() Thanks

10th March 2008, 16:09	#17
Jaggu Team-BHP Support Join Date: May 2004 Location: Bangalore Posts: 20,215 Thanked: 15,907 Times	Its the car shokies working
	() Thanks

10th March 2008, 17:19	#19
ece2k2 BHPian Join Date: Jun 2005 Location: Coimbatore Posts: 524 Thanked: 349 Times	thanks Jaggu and binz - that is comforting. I got concerned about this because I have never heard this sound from my Swift Vxi. I could not hear this kind of noise from my Swift LDi's rear tires either. So looks like a different front suspension setup for Swift Diesel for the engine weight!
	() Thanks

21st March 2008, 09:30	#20
s0uljah Senior - BHPian Join Date: Feb 2006 Location: BLR Posts: 2,222 Thanked: 26 Times View My Garage	I was running 30 / 28 for the front and rear combo and it does eat into the mileage a fair bit. Iv been getting 13ish with a combo of bumper to bumper traffic and also some late night 4000rpm shifts. Wasnt a 100% A/C person but now gotten accustomed to it :-\|
	() Thanks

21st March 2008, 11:02	#21
Jaggu Team-BHP Support Join Date: May 2004 Location: Bangalore Posts: 20,215 Thanked: 15,907 Times	s0uljah: in your case the air pressure might be just about ok since you are running 205's on 15 inch, right?
	() Thanks

21st March 2008, 19:48	#23
s0uljah Senior - BHPian Join Date: Feb 2006 Location: BLR Posts: 2,222 Thanked: 26 Times View My Garage	Yep Jaggu, 205/55/15 it is. 32/30 combo can get hella bumpy and uncomfy. Is the stress on alloys with the 2 psi difference negligible or is there a serious amount of stress transfered ?
	() Thanks

21st March 2008, 21:29	#24
Jaggu Team-BHP Support Join Date: May 2004 Location: Bangalore Posts: 20,215 Thanked: 15,907 Times	what i know is, as the width increases and the profile decreases, psi can be dropped marginally without much impact on tyres or the alloys. So a 2 pound drop shouldnt be big deal. I would rather worry about those unsuspecting CRATERS at high speeds, for which a 2 psi diff might not really help.
	() Thanks

21st March 2008, 21:57	#25
PatienceWins Senior - BHPian Join Date: May 2007 Location: Bangalore Posts: 2,416 Thanked: 809 Times View My Garage	Congrats!! The price you have got seems good. I was quoted 3600 for a XM1+ 185/65/ R14 for my Getz by Sai Iyengar, Lal Bagh Road. My belief is that that XM1+ is comfort oriented tyre with decent grip. No tyre noise. I plan to upgrade to XM1+ once the stock tyres are done. How do you find the ride and handling with XM1+?
	() Thanks