Fuel saving measure?
Submitted: Thursday, Jun 22, 2006 at 19:58
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35186
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Leroy
Tyre presures! Geez I can't believe this. I have a VT crapoladore and the front tyres are scrubbing and feathering a bit due to driving through the hills all the time and the rears a scrubbing due to the independant rear end. I thought I'd over inflate them a little - 44 psi to see if I can get them to wear a bit in the middle of the tyre. I haven't noticed much as yet because I've only traveled 1000-1200k's since the inflate but what I have noticed is my fuel eccononomy has dropped. I never have taken to much notice but last tank I had done 700 and something and only put it 62l and today I filled and worked out the mileage and 8.59l/100k. I'm happy to get below 10/100 which I always achieve but since the tyres running at 44psi to save 1l/100 is unbelievable. (no fitch fitted)
Leroy
Reply By: Member - Bradley- Friday, Jun 23, 2006 at 00:48
Friday, Jun 23, 2006 at 00:48
regardless of pressure, vt commys are chronic tyre scrubbers, fronts always chew the outside edge and rear chews the inner edge to various degrees, whiteline and others do kits to fix up the rear, but the front never seems to be fixed up properly.
i find around 38 on the standard tyres is a good mark.
And yes pumping em up will save on the juice. although it will accellerate centre tread wear, but if you rotate front to rear then the sides will be scrubbed down and so this wont matter :-)
AnswerID:
179996
Follow Up By: Leroy - Friday, Jun 23, 2006 at 06:22
Friday, Jun 23, 2006 at 06:22
'although it will accellerate centre tread wear'
Yeh I realise this but they are at a point where they are/will be stuffed regardless if I do nothing as I have been rotating front to rear.
I usuall run 38 and have from new but as the ol girl ages she's being harder and harder on tyres. At this late stage of the game I'm not worring about getting kit for rear as it's done 180k now and the next set of tyre will see it out.
Leroy
FollowupID:
436183
Reply By: Flash - Friday, Jun 23, 2006 at 13:14
Friday, Jun 23, 2006 at 13:14
Leroy,
what you mean is your economy has INCREASED, your fuel consumption has decreased.
And higher tyre pressures do not necesarily mean worse handling in the wet- it actually decreases the chance of aquaplaning- aquaplaning speed is directly proportional to tyre pressure.
Upping tyre pressures (within reason) will help handling, fuel economy, and tyre life.
The only negative is ride quality, and the manufacturers figures always err on the side of ride quality. I have always used higher than manufacturers figures on bitumen, (obviouly not on dirt/ sand etc)
AnswerID:
180063