Alufelgen
04-13-2010, 04:47 PM
#11
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If you would like to upgrade to a set of forged wheel stick to a one piece if you have performance in mind.
04-13-2010, 04:58 PM
#12
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I would have to disagree with your statement. Some wheels are built with the same quality as OEM wheels. If you could afford the $4k-$5k price tag of most forged wheels then by all means go for it and they`ll be lighter, but not stronger. A certifiable wheel certified and tested at 695kg load per corner would have the same strength whether it is forged or cast. The only difference is that a forged wheel would sustain a load of 695kg while weighing 20-22lbs (stronger Al requires less metal) and a cast would require a weight of 23-28lbs.
If you would like to upgrade to a set of forged wheel stick to a one piece if you have performance in mind.
If you would like to upgrade to a set of forged wheel stick to a one piece if you have performance in mind.
true one piece is generally the best way to go but it is still a significant weight difference in rotating mass, a mere 24lbs of rotating mass is considerable against static mass of 24lbs
and how is a forged wheel not stronger than cast? Every forged wheel manufacturer out there states that a forged wheel is generally 300 times stronger than most cast wheels
are you saying that this is completely untrue?
04-14-2010, 08:18 AM
#13
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true one piece is generally the best way to go but it is still a significant weight difference in rotating mass, a mere 24lbs of rotating mass is considerable against static mass of 24lbs
and how is a forged wheel not stronger than cast? Every forged wheel manufacturer out there states that a forged wheel is generally 300 times stronger than most cast wheels
are you saying that this is completely untrue?
and how is a forged wheel not stronger than cast? Every forged wheel manufacturer out there states that a forged wheel is generally 300 times stronger than most cast wheels
are you saying that this is completely untrue?
See it as five 100lbs guys pushing a car to 5mph and then the same 5 guys on steroids pushing the same car. They both will be able to push the car to 5mph, however, the guys on steroids since they are much stronger won't really need all five guys and can probably do it with only 2-3 guys. So the guys on steroids require less guys to achieve the same speed.
If, however, a forged wheel would be designed to be the same weight as a cast wheel (same design, width, offset, etc) then it would be a much stronger wheel than the cast version. But the concept of forged is not strength but weight savings.
Keep in mind by forged wheel I`m referring to ONE PIECE forged wheels and not 3PC wheels. 3PC wheels are not forged wheels.
04-14-2010, 12:48 PM
#14
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No. Forged wheels are not 300x stronger than Cast wheels. Forged Aluminum is about 300% (not 300x) stronger than regular Aluminum. Forged AL is also not lighter than regular Aluminum. A 2x2x2 block of Forged Aluminum would weight the same as the same size block made out of regular aluminum. Since Forged Al is stronger and denser it requires less material to achieve the same strength.
See it as five 100lbs guys pushing a car to 5mph and then the same 5 guys on steroids pushing the same car. They both will be able to push the car to 5mph, however, the guys on steroids since they are much stronger won't really need all five guys and can probably do it with only 2-3 guys. So the guys on steroids require less guys to achieve the same speed.
If, however, a forged wheel would be designed to be the same weight as a cast wheel (same design, width, offset, etc) then it would be a much stronger wheel than the cast version. But the concept of forged is not strength but weight savings.
Keep in mind by forged wheel I`m referring to ONE PIECE forged wheels and not 3PC wheels. 3PC wheels are not forged wheels.
See it as five 100lbs guys pushing a car to 5mph and then the same 5 guys on steroids pushing the same car. They both will be able to push the car to 5mph, however, the guys on steroids since they are much stronger won't really need all five guys and can probably do it with only 2-3 guys. So the guys on steroids require less guys to achieve the same speed.
If, however, a forged wheel would be designed to be the same weight as a cast wheel (same design, width, offset, etc) then it would be a much stronger wheel than the cast version. But the concept of forged is not strength but weight savings.
Keep in mind by forged wheel I`m referring to ONE PIECE forged wheels and not 3PC wheels. 3PC wheels are not forged wheels.
08-09-2010, 08:13 AM
#16
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My Ride: '04 545i
'02 SC430
'04 RX330
i would agree with the recommendation of forged wheels for your M5: or for any E60 for that matter. OEM wheels are not always the best quality or even what's best for the car: otherwise the 166 wheels would be forged like the 167 wheels.
having a wheel that is 5-10 lbs lighter will make a significant improvement on the ride and performance of your car. it'll accelerate quicker, corner better and break quicker. if you are going to spend a couple of grand on new wheels/tires, might as well spend a bit more and actually get something that'll make the look, and drive, better
having a wheel that is 5-10 lbs lighter will make a significant improvement on the ride and performance of your car. it'll accelerate quicker, corner better and break quicker. if you are going to spend a couple of grand on new wheels/tires, might as well spend a bit more and actually get something that'll make the look, and drive, better
08-18-2010, 09:11 AM
#17
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i would agree with the recommendation of forged wheels for your M5: or for any E60 for that matter. OEM wheels are not always the best quality or even what's best for the car: otherwise the 166 wheels would be forged like the 167 wheels.
having a wheel that is 5-10 lbs lighter will make a significant improvement on the ride and performance of your car. it'll accelerate quicker, corner better and break quicker. if you are going to spend a couple of grand on new wheels/tires, might as well spend a bit more and actually get something that'll make the look, and drive, better
having a wheel that is 5-10 lbs lighter will make a significant improvement on the ride and performance of your car. it'll accelerate quicker, corner better and break quicker. if you are going to spend a couple of grand on new wheels/tires, might as well spend a bit more and actually get something that'll make the look, and drive, better
Remember, our SF-71s are only 23bls for the 19x8.5" and 26lbs for the 19x9.5" and rated at 1600lbs per corner. They are as strong as any forged wheel of the same load rating. The different is weight. I doubt, however, the difference in weight would be 5-10lbs per wheel. With a Forged wheel the weight is about 1-2lbs less than our SF-71s. Please see the samples below. The 3PC Forged are very close to our 1PC SF-71. The 360Forged is actually heavier. The HRE is less than 1lb lighter than our SF-71 front and cost about 5x more.
I`m by no means saying our wheels are better than any of the wheels below. I`m making a point that Forged does not necessarily mean lighter or stronger. And Cast, does not necessary means heavier or weaker. Our low-pressure cast SF-71 are an excellent compromise between price, quality and performance.
19x8.5" BBS LM-R (3PC)
19x8.5" 360Forged CF5 (3PC)
19x9.0" HRE P40 (1PC)
19x8.5" Alufelgen SF-71 (1PC)
08-19-2010, 05:32 AM
#20
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