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Wagons Volvo V70 Volvo V70 Wagon Experience
1827 messages, Last post on Sep 24, 2009 at 12:33 PM
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Replying to: xcv70sydney (Mar 26, 2009 5:01 am) Of course, yours may have larger wheels--16", 17" or 18"--with lower profile and wider tires. What is the size of the tires on the vehicle right now? See the large writing on the sidewall. According to TireRack these are the specified sizes for your car: 15 inch wheels: 205/65-15 (OD at tread 25.5 inch) 16 inch wheels: 215/55-16 (OD at tread 25.3 inch) 17 inch wheels: 215/50-17 (OD at tread 25.5 inch) 18 inch wheels: 225/40-18 (OD at tread 25.1 inch) Even if your car came from the factory with Pirelli tires that doesn't mean those would be the best for the car, and almost certainly wouldn't be the best value. Check out the other brands, especially see the Kumho offerings. My 2004 base model V70 came with 195/65-15 (25.0 inch dia at tread) and I stayed with that size when I replaced the OE tires. Some people mount wider and lower profile tires than specified, but this can lead to rubbing of the tires on the wheel wells and suspension especially as the vehicle ages and the suspension loosens up. For example, suppose you have 15" wheels, then some people might mount 225/60-15 tires, but often this leads to headaches. These are 20 mm wider than the OE, but since they are lower profile 60 series then the diameter at the tread is about the same as the OE 65 series tires. This means that the calibration of the odometer and speedometer doesn't have to be fiddled with to remain accurate. But these tires could rub on suspension components or the wheel wells. Dia in inches of 205/65-15 = (205mm/25.4mm/in)(0.65)(2) + 15 in = 25.5 inch Dia in inches of 225/60-15 = (225/25.4)(0.60)(2) + 15 = 25.6 inch
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Replying to: volvomax (Aug 08, 2008 12:41 pm) The new plug went in fine (with crush washer) and the tech said that the threads were OK. |
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Replying to: jim314 (Mar 26, 2009 8:25 am) (205/25.4)(0.60)(2) + 16 = 25.7. I wonder what Volvo says is the specified size for 16" wheels on an XC70? IMO there is no point in having low profile tires on an SUV. So SUV should not have tires lower profile than 65 series or at the lowest 60 series. The base tire on the 2007 XC90 is 235/65-17, and replacement tires are a lot cheaper than those on the optional 18" wheels.
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Replying to: jim314 (Mar 26, 2009 3:58 pm) Cheers Aus EST2158hrs Friday
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Replying to: xcv70sydney (Mar 27, 2009 2:00 am) http://www.volvoforums.org.uk/showthread.php?t=41689 http://www.volvoforums.org.uk/showthread.php?p=271649#post271649 The 215/65-16 tires have an outside diameter of 27.0 inches and may be a little larger than exact spec by about 1.1 %. You'd have to check with Volvo. But this difference may have no problems for you. If it is over spec, the odo and speedo would both read falsely low. A trip where the odo shows 100 mi would actually be 101.1 mi. If your speedo shows 70 mph then you are actual speed would be 70.8 mph.
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Replying to: xcv70sydney (Mar 27, 2009 2:00 am) "The central locking button does not lock the fuel filler door." Quote from section entitled Fuel filler Door, Owner's Manual of 2004 V70. |
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Replying to: jim314 (Mar 27, 2009 3:56 am) I see that the specified base tyre for the 2009 XC70 is 215/65-16, which is what you have on your 2000. Since you are not the original owner you might just check with a Volvo dealer to see if this size was the OE spec in 2000. A tire which is 27.0 inch diameter at the tread is 5.9% larger than one which is 25.5 inch diameter. If they tell you that the specified tyres in Australia are what you have then you can assume that your speedo/odo are reading right. But if the specified size was different from that, then the previous owner could have had the speedo/odo recalibrated to read correctly with the larger tyres. So you should check the odo over one of those calibrated distances. Be sure to use the trip odo since it measures to the nearest 0.1 mile. The speedo counts the turns of the wheels in a given time and converts this to speed by mult by the circumference, and circumference is pi times diameter at tread. Therefore, if the speedo is calibrated to read true speed with 25.5 in OD tires, but you are using 27.0 in OD tires, then the true speed will be 5.9% higher than the indicated speed. For example, if your speedo reads 70 mph, you are really travelling 74 mph. And if your odometer reading is 100.0 mi for a trip, then you actually went 105.9 mi. Here is a popular and widely used tire calculator: http://www.miata.net/garage/tirecalc.html |
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Replying to: jim314 (Mar 27, 2009 6:21 pm)
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Replying to: fedlawman (Mar 27, 2009 9:34 pm) But maybe the 2000 V70 XC wasn't big on ground clearance and they just used the same size tires as the standard V70. We need info on Australian specifications on the 2000 Volvo V70 XC. If the 205/55-16 were the OE tires, then 215/65-16 tires (27.0 ich dia at tread) would be much larger than the OE: 27.0/24.9 = 1.084, so the larger ones would be a whopping 8.4% larger in diameter. So, unless the speedo was recalibrated, if the speedo was reading 70 mph, the actual speed would be 76 mph. And a trip registering 100.0 mi on the odo would actually have been 108.8 mi. It would be surprising that tires this much larger than OE spec wouldn't rub at least when the steering wheel was near lock to one side.
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Replying to: jim314 (Mar 28, 2009 2:59 pm) 215/65 seems awfully tall to me for these wagons. More like an SUV/minivan tire.
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