Would you go for 19" to 20"S
Allow me to quote Tyga then.
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Mickfluff +++++
I have 20's and love the way it handles, if you calcualte the proper width and offset you will be fine. heck im running 20x13 on my rear with a 345 tire and i love the way my car grips the road on turns and no rubbing. my 20" wheel weigh less then my stock 19'..
I have 20's and love the way it handles, if you calcualte the proper width and offset you will be fine. heck im running 20x13 on my rear with a 345 tire and i love the way my car grips the road on turns and no rubbing. my 20" wheel weigh less then my stock 19'..
Well, after reading many comments I will decided not go for 20"s, the reasons are just there most important ride quality, and the possibility to bent or broke wheels and tires, as I said Mexico streets are bad and bumpy, and not more important stress into suspension and steering components, slower acceleration, and many other issues.
As many said the wheel quality is very important for a great quality ride or better performance and for what I know those sport techno OEM wheels that they are selling me are not as light as a HRE forged wheel.
Any way many thanks for all your comments, I read all of them!
Happy driving!!
Ricardo
As many said the wheel quality is very important for a great quality ride or better performance and for what I know those sport techno OEM wheels that they are selling me are not as light as a HRE forged wheel.
Any way many thanks for all your comments, I read all of them!
Happy driving!!
Ricardo
Personally, I don't like the way that 20" wheels look on the 997. That being said, many people do like the look. I think the key is to understand the consequences of this mod, just like any other mod.
It's true that there are many 20" wheels that are light weight, and often weigh less than Porsche OE 19" wheels. That being said, the distribution of the weight is different. There's more weight out at the edge of the wheel, further away from the center of rotation (metal weighs more than rubber). As a result, the gyroscopic stabilization forces created by the rotating mass are greater for a larger wheel. This puts more stress on the suspension, steering components and the brakes of the car than a smaller diameter wheel. You don't see race cars with large diameter wheels, and that's one reason why. If you never track your car, then larger wheels are probably not going to be an issue. When Porsche releases a new 911 with an optional larger wheel than the previous generation, they modify the suspension and steering components to handle the increased forces.
Again - I don't care if people want to put 20" wheels on their 997. This decision will result in a rougher ride and slightly slower acceleration, but for some people it's worth these consequences to achieve a certain look.
I'm sure somebody will squeeze a 21'' wheel onto a 997 before long if it hasn't already been done.
It's true that there are many 20" wheels that are light weight, and often weigh less than Porsche OE 19" wheels. That being said, the distribution of the weight is different. There's more weight out at the edge of the wheel, further away from the center of rotation (metal weighs more than rubber). As a result, the gyroscopic stabilization forces created by the rotating mass are greater for a larger wheel. This puts more stress on the suspension, steering components and the brakes of the car than a smaller diameter wheel. You don't see race cars with large diameter wheels, and that's one reason why. If you never track your car, then larger wheels are probably not going to be an issue. When Porsche releases a new 911 with an optional larger wheel than the previous generation, they modify the suspension and steering components to handle the increased forces.
Again - I don't care if people want to put 20" wheels on their 997. This decision will result in a rougher ride and slightly slower acceleration, but for some people it's worth these consequences to achieve a certain look.
I'm sure somebody will squeeze a 21'' wheel onto a 997 before long if it hasn't already been done.
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Not accurate
Personally, I don't like the way that 20" wheels look on the 997. That being said, many people do like the look. I think the key is to understand the consequences of this mod, just like any other mod.
It's true that there are many 20" wheels that are light weight, and often weigh less than Porsche OE 19" wheels. That being said, the distribution of the weight is different. There's more weight out at the edge of the wheel, further away from the center of rotation (metal weighs more than rubber). As a result, the gyroscopic stabilization forces created by the rotating mass are greater for a larger wheel. This puts more stress on the suspension, steering components and the brakes of the car than a smaller diameter wheel. You don't see race cars with large diameter wheels, and that's one reason why. If you never track your car, then larger wheels are probably not going to be an issue. When Porsche releases a new 911 with an optional larger wheel than the previous generation, they modify the suspension and steering components to handle the increased forces.
Again - I don't care if people want to put 20" wheels on their 997. This decision will result in a rougher ride and slightly slower acceleration, but for some people it's worth these consequences to achieve a certain look.
I'm sure somebody will squeeze a 21'' wheel onto a 997 before long if it hasn't already been done.
It's true that there are many 20" wheels that are light weight, and often weigh less than Porsche OE 19" wheels. That being said, the distribution of the weight is different. There's more weight out at the edge of the wheel, further away from the center of rotation (metal weighs more than rubber). As a result, the gyroscopic stabilization forces created by the rotating mass are greater for a larger wheel. This puts more stress on the suspension, steering components and the brakes of the car than a smaller diameter wheel. You don't see race cars with large diameter wheels, and that's one reason why. If you never track your car, then larger wheels are probably not going to be an issue. When Porsche releases a new 911 with an optional larger wheel than the previous generation, they modify the suspension and steering components to handle the increased forces.
Again - I don't care if people want to put 20" wheels on their 997. This decision will result in a rougher ride and slightly slower acceleration, but for some people it's worth these consequences to achieve a certain look.
I'm sure somebody will squeeze a 21'' wheel onto a 997 before long if it hasn't already been done.
.. When you push the main hub of the wheel further from its mounting point your essentially pushing the heaviest part of the wheel (main hub area) away from the car. So a wheel built with the correct offset and not using a spacer will be in essence more balanced and likely create a better weight disbursement then Porsches that run spacers. That said, think we can all agree a small 5 or 15 mm spacers ran on these cars isn't something people freak out about and so aggressively go after (like the 19 vs 20 debate). Now the comment of the car being "slower" with 20s? Come on, I bet no one could ever feel any difference in accelation between a well made 20 wheel and a stock 19. That said a poor 20 I would never recommend but to suggest 20s as a blanket statement re worse then 19s I think is not accurate. A well made 20 is IMO humble opinion isn't something one needs to fear will create a car that handles poorly in everyday use. I have run 18, 19 and 20s on 997 cars (unlike many whom oppose 20s but never had them) and can say without a doubt a quality made 20 wheel isn't something people should be afraid of. The key is the right wheels as a bad set of 20s that are anchors would adversely affect performance to a degree that is measurable.
Last edited by mickfluff; Feb 4, 2016 at 07:04 AM.
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And this is why the Internet can be bad news as even a very good sounding argument can be completely incorrect. Some of the higher quality wheels are made from a single block of A6061 forged aluminum (for example the 20s I am running) and are in fact lighter then heavy rubber that tires are made from. Next the whole idea of weight being pushed further out again is not quite accurate. We know many Porsche 997 cars run spacers from the factory and if not then are added after to push the wheels out from the sad sunken pathetic state.. When you push the main hub of the wheel further from its mounting point your essentially pushing the heaviest part of the wheel (main hub area) away from the car. So a wheel built with the correct offset and not using a spacer will be in essence more balanced and likely create a better weight disbursement then Porsches that run spacers. That said, think we can all agree a small 5 or 15 mm spacers ran on these cars isn't something people freak out about and so aggressively go after (like the 19 vs 20 debate). Now the comment of the car being "slower" with 20s? Come on, I bet no one could ever feel any difference in accelation between a well made 20 wheel and a stock 19. That said a poor 20 I would never recommend but to suggest 20s as a blanket statement re worse then 19s I think is not accurate. A well made 20 is IMO humble opinion isn't something one needs to fear will create a car that handles poorly in everyday use. I have run 18, 19 and 20s on 997 cars (unlike many whom oppose 20s but never had them) and can say without a doubt a quality made 20 wheel isn't something people should be afraid of. The key is the right wheels as a bad set of 20s that are anchors would adversely affect performance to a degree that is measurable.
.. When you push the main hub of the wheel further from its mounting point your essentially pushing the heaviest part of the wheel (main hub area) away from the car. So a wheel built with the correct offset and not using a spacer will be in essence more balanced and likely create a better weight disbursement then Porsches that run spacers. That said, think we can all agree a small 5 or 15 mm spacers ran on these cars isn't something people freak out about and so aggressively go after (like the 19 vs 20 debate). Now the comment of the car being "slower" with 20s? Come on, I bet no one could ever feel any difference in accelation between a well made 20 wheel and a stock 19. That said a poor 20 I would never recommend but to suggest 20s as a blanket statement re worse then 19s I think is not accurate. A well made 20 is IMO humble opinion isn't something one needs to fear will create a car that handles poorly in everyday use. I have run 18, 19 and 20s on 997 cars (unlike many whom oppose 20s but never had them) and can say without a doubt a quality made 20 wheel isn't something people should be afraid of. The key is the right wheels as a bad set of 20s that are anchors would adversely affect performance to a degree that is measurable.You're probably right about the difficulty in perceiving the reduction in acceleration, but it's a fact. Many people here are trying to improve acceleration with little things like cold air intakes, ECU flashes, etc. You can't really perceive the difference there, but people still do it. It's just one data point.
I think you are misunderstanding gyroscopic stabilization force. As for the weight being pushed out from the hub, it has nothing do do with spacers or offsets. The weight is being pushed out to the outer circumference of the wheel, towards the tire. That's where the added weight increases the gyroscopic stabilization force. Porsche has published materials about the modifications made to their suspensions to handle the increased forces generated by larger wheels. They do this for a reason.
Again - I'm not arguing against 20" wheels. This is just another data point to consider when changing wheels. Every change has an effect. Some are desirable, and some are not. As you pointed out, there are exceptions to every rule also. The thing that is silly to me is when people post generalizations like: "20 inch wheels will be fine". Maybe they will, maybe they won't. I like to make decisions based on data.
Last edited by Dennis C; Feb 4, 2016 at 07:45 AM.
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I also don't think people should be afraid of a well made 20" wheel.
You're probably right about the difficulty in perceiving the reduction in acceleration, but it's a fact. Many people here are trying to improve acceleration with little things like cold air intakes, ECU flashes, etc. You can't really perceive the difference there, but people still do it. It's just one data point.
I think you are misunderstanding gyroscopic stabilization force. As for the weight being pushed out from the hub, it has nothing do do with spacers or offsets. The weight is being pushed out to the outer circumference of the wheel, towards the tire. That's where the added weight increases the gyroscopic stabilization force. Porsche has published materials about the modifications made to their suspensions to handle the increased forces generated by larger wheels. They do this for a reason.
Again - I'm not arguing against 20" wheels. This is just another data point to consider when changing wheels. Every change has an effect. Some are desirable, and some are not. As you pointed out, there are exceptions to every rule also. The thing that is silly to me is when people post generalizations like: "20 inch wheels will be fine". Maybe they will, maybe they won't. I like to make decisions based on data.
You're probably right about the difficulty in perceiving the reduction in acceleration, but it's a fact. Many people here are trying to improve acceleration with little things like cold air intakes, ECU flashes, etc. You can't really perceive the difference there, but people still do it. It's just one data point.
I think you are misunderstanding gyroscopic stabilization force. As for the weight being pushed out from the hub, it has nothing do do with spacers or offsets. The weight is being pushed out to the outer circumference of the wheel, towards the tire. That's where the added weight increases the gyroscopic stabilization force. Porsche has published materials about the modifications made to their suspensions to handle the increased forces generated by larger wheels. They do this for a reason.
Again - I'm not arguing against 20" wheels. This is just another data point to consider when changing wheels. Every change has an effect. Some are desirable, and some are not. As you pointed out, there are exceptions to every rule also. The thing that is silly to me is when people post generalizations like: "20 inch wheels will be fine". Maybe they will, maybe they won't. I like to make decisions based on data.
I hope you don't think I am being an ******* on purpose here.... spirited debate is OK and hope you agree.
Last edited by mickfluff; Feb 4, 2016 at 08:51 AM.
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I agree with that. More weight on the outside of the wheel, whether it's rubber or metal, increases the forces created by the spinning wheel. Many 20" wheels are heavier overall and have more weight on the outer edges when compared to a 19" wheel. If you are running a wheel/tire combination that is lighter, then this shouldn't be an issue for you. This is why I try to avoid generalizations. You have data to support the use of the 20" wheel that you choose. Most people do not.
I don't think you're out of line at all, and I hope you don't think that I am! I enjoy a good debate and discussion. That's how we learn things on these boards.
I don't think you're out of line at all, and I hope you don't think that I am! I enjoy a good debate and discussion. That's how we learn things on these boards.
Great debate, and I have learn many things!! it was great to know that a new (old) thread could make this much.
Bye the way that turbo looks great sadly does HRE are expensive!! or maybe Jurrian can give me a super special price like my friend´s sport techno´s?????
Bye the way that turbo looks great sadly does HRE are expensive!! or maybe Jurrian can give me a super special price like my friend´s sport techno´s?????
FlowForm FF15 Wheels in Liquid Silver Finish:
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If the price isn't where you would like it, then you could always consider FlowForm as an option as well. The FF15 wheels for your 997 are actually on 20% off sale so if you really wanted to save some cash on a great set of wheels, now would be the time
FlowForm FF15 Wheels in Liquid Silver Finish:
FlowForm FF15 Wheels in Liquid Silver Finish:
You would be correct. I actually don't have photos for some reason of 19" FF15's on a 997. This is a rendering I was working on that may help:
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You don't need pics of 19s as the 20's look perfect!
Last edited by mickfluff; Feb 4, 2016 at 03:19 PM.
