Spec Twin?

[imhereforthecar]

45mm

[JakeRogue]

Originally Posted by imhereforthecar

45mm

I would assume unless you get a 5mm spacer you might be at your max camber.


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[Imp]

Shouldn't matter. The hub defines the camber and won't be different between wheels (unless one rubs the shock, then it limits the angle one can dial in of course). But whether 40 or 45, they both clear with the spec tires, so should be able to get more.

Be sure that you loosen the top and bottom, and make sure the tops are pushed all the way inboard (there's some slack in there).

--kC

[JakeRogue]

Originally Posted by Imp

Shouldn't matter. The hub defines the camber and won't be different between wheels (unless one rubs the shock, then it limits the angle one can dial in of course). But whether 40 or 45, they both clear with the spec tires, so should be able to get more.

Be sure that you loosen the top and bottom, and make sure the tops are pushed all the way inboard (there's some slack in there).

--kC

Ima defer to this man’s judgment. I was just assuming.


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[blkwrxwag]

I bet they don't have the SPC bolt orientated correctly.

[imhereforthecar]

I checked after their first attempt (I mistakenly didnt put the crash bolts in the top hole when I first gave it to them), and the tab is facing out towards the wheel, so I think that's right.

[Bitters]

so trying to do some tire forecasting for the Packwood tour... if I have 110 or so laps on the Falkens come Packwood, am I bringing pretty cooked tires to a bigger show? Or are these tires going to give their best laps until their gone?

[tony_r]

Alignment: time for a new race shop.

Tires: should be fine if your locations are asphalt or light on tire wear.

[Bitters]

Originally Posted by tony_r

Alignment: time for a new race shop.

Tires: should be fine if your locations are asphalt or light on tire wear.

When did you start finding performance fall off? Locally we are mainly on asphalt, and I think Packwood is asphalt as well (you guys will know more than me there obviously)

[Twinz]

Originally Posted by Imp

Shouldn't matter. The hub defines the camber and won't be different between wheels (unless one rubs the shock, then it limits the angle one can dial in of course). But whether 40 or 45, they both clear with the spec tires, so should be able to get more.

Be sure that you loosen the top and bottom, and make sure the tops are pushed all the way inboard (there's some slack in there).

--kC

It's easy to check this visually. I just slide my phone in the wheel well and get a picture.

This is -3 degrees with a 40mm offset.

[tony_r]

Originally Posted by Bitters

When did you start finding performance fall off? Locally we are mainly on asphalt, and I think Packwood is asphalt as well (you guys will know more than me there obviously)

I didn't, but I also went through 1 1/2 sets of tires within 3 months or so. The first set was toast because it was out of tread, not usable rubber. I'm not sure when they heat cycle out but it felt consistent in what it was going to give so it's not very noticeable if or when it falls off. My guess is that they start to feel like a sticker set at the end of their life.

[Open Loop]

Originally Posted by Imp

Shouldn't matter. The hub defines the camber and won't be different between wheels (unless one rubs the shock, then it limits the angle one can dial in of course). But whether 40 or 45, they both clear with the spec tires, so should be able to get more.

Be sure that you loosen the top and bottom, and make sure the tops are pushed all the way inboard (there's some slack in there).

--kC

I think that the 40 or 45 mm offset should matter. If the inner rim is farther away from the spring assembly as a result of the lower offset (40), you should be able to get more negative camber before it rubs.

[bholliday]

Originally Posted by Open Loop

I think that the 40 or 45 mm offset should matter. If the inner rim is farther away from the spring assembly as a result of the lower offset (40), you should be able to get more negative camber before it rubs.

A 5mm spacer should give approximately 0.9 degrees of extra camber (i.e. acos(5mm/12.5inch)=89.1 degree).

[snoxracer183]

I am only seeing 2.6-2.8 camber with everything maxed out as well. We've checked orientation of everything multiple times, tire/wheel clearance to the strut looks like the above picture. I think there is some "wiggle room" in alignment machines in measuring camber. How good is the machine, how old is it, how is it calibrated etc is going to determine what your final number can be. If you are about 1/8" away from the spring perch you should have just as much camber as the rest of the builds.