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Author Topic:   Changing Size on 97 Camry LE 4
gc2000
unregistered
posted October 25, 2000 09:34 PM           Edit/Delete Message Reply w/Quote
Sorry in advance for asking stupid question, but...is there any real issue in going to the next bigger size on this car? I believe the stock size is P195/70R14, the V6s came stock with P205/65R15. Can't I just get the V6 size without having to worry about speedometer variation, etc? Was there something else in the V6 suspension setup that factors into this equation?

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Tuna
unregistered
posted October 26, 2000 05:40 AM           Edit/Delete Message Reply w/Quote
Looks like speedo would really be far out . The overall diameter of these 2 sizes are not close. 195/70-14 = 24.80"
205/65-15 = 25.47"
You would be closer with 205/60-15 = 24.69"

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Craig
Member
posted October 26, 2000 06:26 AM     Click Here to See the Profile for Craig     Edit/Delete Message Reply w/Quote
I disagree with the speedo problem. It would only be out 3%. At 65 mph this is less than 2 mph. I don't see that as a problem. With the 205/65/15 size you are considering, there should actually be a little increase in gas mileage, though probably not noticeable. With the 205/60/15 there may be a little decrease in gas mileage. Gas prices being what they are, I would go with the 205/65/15. You do know however that this means all new rims as well as tires?

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gc2000
unregistered
posted October 26, 2000 06:54 PM           Edit/Delete Message Reply w/Quote
Understand that new rims are required. I assume 15X7 (with the right # of holes) is the right size, if I'm shopping?

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Tuna
unregistered
posted October 27, 2000 04:38 AM           Edit/Delete Message Reply w/Quote
Ok, Even if you accept the speedo difference the thing you may want to consider is the acceleration of the Camry, Craig is right in saying that the 205/65-15 will give better gas milage because a taller/larger or increased diameter tire will give you the same effect as changing you gear ratio to a higher gear. This will give you a higher top speed but less acceleration. I thought the reason you wanted to go to a large tire size was to improve your cars performance not lower it. Four cylinder Camrys don't really have a lot of acceleration I would not be willing to trade away what they have for better gas milage. Another thing to keep in mind is driving in snow. I don't know if you live in an area with winter driving conditions but a Camry with 195/70-14 tires goes a lot better in snow than one with 205/65-15 tires. Oh by the way, I am a Toyota sales rep. and in the winter I always use a 4 cylinder Camry LE because they go so much better than the V6 models.

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Craig
Member
posted October 27, 2000 06:17 AM     Click Here to See the Profile for Craig     Edit/Delete Message Reply w/Quote
Good point Tuna. I was not familiar with the somewhat impaired acceleration of the 4 cyl. Camry. gc2000, when rim shopping, just tell the salesman what make and model of car you have as well as the size tire you want and he will get you the right rims. Just any old 15 X 7 rim might not fit your vehicle.

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gc2000
unregistered
posted October 27, 2000 06:47 AM           Edit/Delete Message Reply w/Quote
Okay. I seem to be getting a clearer picture. What I was really hoping for was better handling and/or feeling of connectedness to road. I guess when Toyota bumped up the horsepower a notch in model year 2000 on the 4 cylinder they made the 15 inchers standard? This isn't exactly a race car with 14 inches, I wonder what the % drop off in straightline acceleration REALLY would be. Or if the 50/60 MPH to 80 MPH passing band is impacted even marginally.

quote:
Originally posted by Craig:
Good point Tuna. I was not familiar with the somewhat impaired acceleration of the 4 cyl. Camry. gc2000, when rim shopping, just tell the salesman what make and model of car you have as well as the size tire you want and he will get you the right rims. Just any old 15 X 7 rim might not fit your vehicle.

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laqn
unregistered
posted October 27, 2000 07:44 PM           Edit/Delete Message Reply w/Quote
I have a Camry, and I don't think it will make much of a difference in terms of power for passing maneuvers. Assumming a 3% difference, that's 75rpm's less at 2500rpm and 150rpm's less at 5000. (Meaning at a road speed where your car with the old size was running 5150rpm, with the new size, the engine would be turning 5000rpm.) I don't think a difference of 150rpm would make that much difference at speed. Off the line, it may be more of an advantage though. Also, the 205/65's will give you more grip in handling and braking situations. Keep in mind that the contact patch increases with BOTH tire width AND tire diameter. Though the width of contact patches for 205/60 and 205/65 tires are the same, the LENGTH of the contact patch for the 205/65 tire is LONGER(thus more surface area) because of the (marginal) increase in overall diameter. Finally, the taller sidewall of the 65's will result in a smoother ride. Many may argue that the taller sidewall will detract in handling. But I think a stock Camry suspension would not be able to take advantage of the higher performance of "low profile" tires anyway.

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DaveB
unregistered
posted October 28, 2000 10:25 AM           Edit/Delete Message Reply w/Quote
Try not to complicate things too much (different rims, unless it's a cosmetic thing). I would go for sportier tires in the P195/70r14. This size is pretty common and there are some neat tires that would enhance performance over the OEM or normal everyday all season tires (this is an especially economical size).

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gc2000
unregistered
posted October 28, 2000 11:35 AM           Edit/Delete Message Reply w/Quote
right...that's a big part of my issue -- I don't care much for the stock steel wheels and hubcaps, and if I'm going to buy different rims, think it might as well be 15" size (although on Ebay I did see a 14" knockoff (non-OEM?) of the OEM 15" alloy wheel).

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