Axle cant
- Thread starter ZZ Racing
- Start date
I assume that you mean for a wide tread car? If so, that sounds about right. Razor wheels are typically less than that.
O.R.
O.R.
Also, how much cant on the DFW for MODs and SPMs?
Funny I ask that since my MOD is doing well, but maybe only by accident.
Also, how much veer on 7 or 8 ft board for MOD and SPM?
Funny I ask that since my MOD is doing well, but maybe only by accident.
Also, how much veer on 7 or 8 ft board for MOD and SPM?
ZZ, For me its a little different. The 2.5-3 is a good start, what I like to do after I get the car build I do a few slow roles down the track and listen to and watch, what the wheels are doing. If I have a screech type noise I will give it alittle more cant. As for how the wheel reacts I will leave that up to you to figure out what works best for that car. The easiest way is to get lucky and build a fast car than compare the differences to the cars that aren't performing so well. It sucks they should all just run good!
- Nov 24, 2011
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I will give you a real measured answer after the race this weekend. I have taken many degreed measurements and it's not what most of you may think.
Opa, As far as the turn in degree, it all depends on the car and the COM. All my cars COM are pretty conservative so the the turn degree is not to much at all.
- Nov 24, 2011
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i changed the axle in one of my cars from 3 degrees to one that just barely fit through the bore and gained .006. that is alot in my book. that could be first instead of fifth.
- Nov 24, 2011
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Kinser Racing said:
When using this much of a bend, do you drill the DFW higher up into the block?
I've been using the typical 5/32 to 6/32 on the rears, and 3/32 to 4/32 for the DFW when using around 3-4 degrees of bend. I'd imagine the amount of toe-out would increase with 9-10 degrees of bend on the DFW.
I use wood blocks drilled by DerbyDad4Hire because I know they are accurate and the vertical positioning is proven successful.
Could someone help me understand why the rear holes are drilled higher than the front. If you ad to this, the rear wheels being canted negative and the front being canted postitive - the rearend sits even lower. Why isn't the resulting toe-out of the rear wheels counter productive?
I don't question if it works, I just can't get my mind around why.
Could someone help me understand why the rear holes are drilled higher than the front. If you ad to this, the rear wheels being canted negative and the front being canted postitive - the rearend sits even lower. Why isn't the resulting toe-out of the rear wheels counter productive?
I don't question if it works, I just can't get my mind around why.
When you guys find the perfect heights PLEASE let me know!
The trick is bending the front axle the exact same. Still looking for the best way to do this.
The trick is bending the front axle the exact same. Still looking for the best way to do this.
I have often wondered if the rear sits lower than the front, AND if you have a flat bottom, is it possible that the air flow would take a bit of weight off the rear end???
If this happens to be true, even though the back might lift some, the car would still not lose momentum on the down slope.
Another thought. If the top of the car has a bulge (like an airplane wing), the venturi effect would also cause a decrease of weight on the wheels, without losing forward momentum. I have noticed that a lot of cars have a slight bulge at the front axle point, as well as at the rear, where the weight and rear axle reside. Maybe this helps, or maybe our cars don't move fast enough for all this to occur, but who knows? Maybe one of you engineers can enlighten us on this.
If this happens to be true, even though the back might lift some, the car would still not lose momentum on the down slope.
Another thought. If the top of the car has a bulge (like an airplane wing), the venturi effect would also cause a decrease of weight on the wheels, without losing forward momentum. I have noticed that a lot of cars have a slight bulge at the front axle point, as well as at the rear, where the weight and rear axle reside. Maybe this helps, or maybe our cars don't move fast enough for all this to occur, but who knows? Maybe one of you engineers can enlighten us on this.
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