Originally Posted by RBfastback thanks for the info, u changed my mind. I've just been reading so much about ppl not having any problems even with track cars and drag
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05-30-2015, 09:03 PM | #826 (permalink) | |
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Widening will work, especially for racers that are generally crazy and do things on a low budget. For regular street use, you might not only have safety issues, but vibration and wobble issues, since wheels are orininally machined into their final form on a lathe to ensure perfect roundness...once cut and weled, the rear part of the drum won't ever lign up with the front perfectly as when it was cast or forged from a single piece of aluminum and machined into shape. Also, if you widen wheels, that changes the offset, it makes it more positive (a higher offset number, tires further into fenders and towards the car). Wider tires providing more traction is a misconception, the contact patch/surface area doesn't really increase, it just changes shape from a more square patch to a more rectangular one, unless with lower air pressure...and even then the only thing that happens is you have less weight per squate inch of contact patch, so it's good for mud and deep snow so you can stay on the surface without sinking in, but the weight per square inch is what gives you the traction in the first place...so it equals out, more surface area but less weight per unit means equal traction either way. Where wider tires do have a traction advantage is heat dissipation over longer track use or while doing burnouts, so it saves the tire, that less weight per square inch means the compound is under less stress, so wider lasts longer in general. Think of it as brakes, any disc brake small or large will stop your car from 100 equally as fast...once, because the brakes are strong enough to overcome the tires and the tires start skidding so they're the weakest link while stopping. Do that a handful of times however and the smaller brakes with less surface area and more pressure per square inch the pads exert on the disc means they will start overheating and fading sooner than the larger brakes with less pressure per square inch needed to stop the car. |
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05-31-2015, 10:10 AM | #827 (permalink) | |
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I took a 18"x8" with a 3.5" backspaceing alloy rim, after much searching found Weldcraft wheels that would widen it for me, they added a 7" barrel to the rim to make a 18"x15" wheel. The wheel is guaranteed and when balanced needed only .25 oz of weight to be true with a 31"x18.5" radial tire. Back in 2006, it was the widest and largest diameter rim they had done. So before you spout off about us crazies doing it, do a little research, it can be done and safely... In regards to the crazy comment, it took me 3 weeks to hand polish from a 60grit finish to the final polish you seen in the pictures... Last edited by OldFart; 05-31-2015 at 10:13 AM. |
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05-31-2015, 11:24 AM | #828 (permalink) | |
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By "crazy" i hope you underatand what I mean, and that is anyone fully dedicated to something becomes "crazy" for that particular thing. |
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05-31-2015, 12:06 PM | #829 (permalink) | |
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06-01-2015, 12:09 AM | #830 (permalink) |
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that's some good info. thanks guys.
yeah I read about weldcraft and that when there done with it the wheel is actually more balanced then it was stock but still ill just wait to get some new wheels. I'm in no rush, I like the nismo rims. |
06-01-2015, 12:56 AM | #831 (permalink) | |
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They should however be completely wobble free as they are finished on a lathe which makes them perfectly round...once welded they cannot put them on a lathe again because they'd be taking away from the aluminum and would make the 18" wheel less than 18" and as I'm sure you can understand, that wouldn't be good. So, when matched properly which is very difficult...it can be close, but not completely wobble free as from factory. Again, it would work if done right, it just depends if you wanna go that route or not at the end I guess. |
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06-01-2015, 07:38 PM | #833 (permalink) | |
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06-01-2015, 08:35 PM | #834 (permalink) | |
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At any rate, there's a reason forged wheels have an advantage over cast, and certainly welded wheels, and especially someone that will overheat the aluminum while welding it, making it even more brittle. You cannot tell me a welded aluminum seam will be nearly as strong as a forged single piece of aluminum. I do agree that pretty much anything can be done with peoper equipment and professionals...but willl you to find this level of professionalism when looking to widen your wheels? Maybe you might...but not everyone will, life isn't this perfect...not even close. That's just my opinion though |
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06-02-2015, 08:15 AM | #836 (permalink) | |
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1, I already had them in the rear so I saved money and just moved them. 2, my front end is slightly higher off the ground than it would of been with 275s, which is nice when climbing on driveways. And 3, the 285s are extremely close to the 245/40R19 original tire, coser than the 275s. I'm really thinkinking about 295/35R19 for my next front tire change but I'll see |
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06-02-2015, 11:29 AM | #837 (permalink) | |
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Weldcraft has been around for a long time. They had done 2 sets of motorcycle wheels for me years ago when I raced them. They have experience people, and the equipment. What it boils down to with the welded wheels. If you can't find the wheel style with the width and back spacing. This is an option. Myself, I run Forgeline wheels.
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06-02-2015, 05:08 PM | #838 (permalink) | |
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06-25-2015, 04:31 PM | #839 (permalink) |
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06-25-2015, 04:32 PM | #840 (permalink) |
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