Rotary Forged vs Forged

[Aggie1999]

Ok, I've been trying to figure out a set of rims that I like, that are also not $1k a piece, but I'm confused about construction techniques.

I read somewhere that Rotary Forged is basically the same ting as Flow Formed, but also that they are really no stronger than Cast. Is that correct?

Where as Forged is the best, but also the most expensive, and the strongest.

Is any of this correct? Is anything basically other than actual Forged crap that will break and shatter in a bad pothole? Or is Rotary Forged, and anything else along that line actually a good strong rim? I am so very confused.

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[Sofa King]

Rotary Forged or flow formed are somewhere between cast and full forged as far as strength and lighter weight. I would stay away from cast, but flow formed are fine for street use. Full forged for track use would be recommended.

 

[roadpilot]

I'm almost 59 years old. I've owned elevendy hundred vehicles, including many hi-po sports cars. I've never purchased a forged wheel. I've also never had a single experience of breaking or shattering a wheel in a pothole. YMMV.

 

[roket]

my personal opinion: get flow form wheels.

usually 66% or more cheaper than fully forged wheels, and will do just about everything forged wheels will do. honestly, you really should only get forged wheels if you are shaking and crying and overall a trembling mess at the thought of the wheels being 5 to 15lbs heavier. but if you are, you might be better off trading your Mustang for a Lotus.

forged wheels are also stronger, but its really the type of "stronger" that really only affects dropping your wheels from the roof with no tire, or hitting things on the road at ungodly speeds. note that this is only true for on-road use. for something like a Raptor, forged wheels make more sense, because the potentially extremely rough terrain could definitely cause bent wheels. the Raptor R actually comes standard with forged aluminum beadlock capable wheels.

i have a set of flow form wheels that have been going strong for 25k+ miles, many autocross events, and very high speeds. i even hit a metal strap that fell of a truck last year, and while the powder coat got chipped, the wheel was not bent. i have even gone on some dirt roads with the only issue being my low splitter hitting some dirt and raining small rocks on the vehicle.

in general, here are most of the ways wheels can be made:

Stamped Steel (steelies) - the basemodel wheels
Cast - pour metal into a mold
Low Pressure Cast (way most modern stock and aftermarket wheels are made) - pour metal into a mold with the help of a vacuum
Flow Form (or rotary forged) - low pressure cast with the barrel drawn out
Forged - made from a solid block of metal, milled into shape
Carbon Fiber - usually prepreg carbon fiber in layers in a mold

 

[smurfslayer]

This is what happened to my wife’s Lincoln in a construction zone around San Antonio. A pot hole crater strike at 60mph. Tire pressure was around 36 psi. Despite how it looks, this held air.
It was a pretty penny to replace and the ride was compromised after this, you could feel the vibes in the steering wheel and throughout the car subtly. These are 21’s IIRC

 

[Aggie1999]

my personal opinion: get flow form wheels.

usually 66% or more cheaper than fully forged wheels, and will do just about everything forged wheels will do. honestly, you really should only get forged wheels if you are shaking and crying and overall a trembling mess at the thought of the wheels being 5 to 15lbs heavier. but if you are, you might be better off trading your Mustang for a Lotus.

forged wheels are also stronger, but its really the type of "stronger" that really only affects dropping your wheels from the roof with no tire, or hitting things on the road at ungodly speeds. note that this is only true for on-road use. for something like a Raptor, forged wheels make more sense, because the potentially extremely rough terrain could definitely cause bent wheels. the Raptor R actually comes standard with forged aluminum beadlock capable wheels.

i have a set of flow form wheels that have been going strong for 25k+ miles, many autocross events, and very high speeds. i even hit a metal strap that fell of a truck last year, and while the powder coat got chipped, the wheel was not bent. i have even gone on some dirt roads with the only issue being my low splitter hitting some dirt and raining small rocks on the vehicle.

in general, here are most of the ways wheels can be made:

Stamped Steel (steelies) - the basemodel wheels
Cast - pour metal into a mold
Low Pressure Cast (way most modern stock and aftermarket wheels are made) - pour metal into a mold with the help of a vacuum
Flow Form (or rotary forged) - low pressure cast with the barrel drawn out
Forged - made from a solid block of metal, milled into shape
Carbon Fiber - usually prepreg carbon fiber in layers in a mold

That is a huge help! Thank you.

 

[DannyJ7]

I'm almost 59 years old. I've owned elevendy hundred vehicles, including many hi-po sports cars. I've never purchased a forged wheel. I've also never had a single experience of breaking or shattering a wheel in a pothole. YMMV.

Very impressive if you're in Michigan with these roads...

 

[Aggie1999]

Since I'm easily talked into things, especially things I want, I just ordered some Stance - SF10s from our buddy Tom over at Vibe.

 

[robvas]

Don't forget there are different qualities of all of those types of wheel construction...

I've had cast wheels that bent easily, and then I've had ones where you could break a concrete curb and only scuff the wheel.

OEM cast wheels are usually (but not always, cough cough second gen Mitsubishi Eclipse) pretty strong and that's why they're so heavy compared to a lighter cast wheel. And then you have lighter flow-formed wheels etc

I haven't dented a flow-formed wheel yet but I haven't hit anything crazy.

 

[roadpilot]

Very impressive if you're in Michigan with these roads...

Yes, I am.

 

[Wiley Marmot]

Since I'm easily talked into things, especially things I want, I just ordered some Stance - SF10s from our buddy Tom over at Vibe.

Cool! Post some pics after you get 'em on your GT, please!

 

[Paul's stable]

I'm almost 59 years old. I've owned elevendy hundred vehicles, including many hi-po sports cars. I've never purchased a forged wheel. I've also never had a single experience of breaking or shattering a wheel in a pothole. YMMV.

Just curious how many car's is "elevendy hundred vehicles"?

 

[Ewags81]

11+0+00 net 11000?

 

[Wiley Marmot]

Just curious how many car's is "elevendy hundred vehicles"?

Mrs. Smith, my 8th grade math teacher, made us commit that to memory .

Elevendy hundred is slightly more than a truck load and slightly less than a **** load.

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