First Autox in the Mustang

[Sky Render]

I've got 285 Goodyear Eagle F1 Supercars on all 4 corners (180 treadwear versions, for the record), and I actually like them.

But I'm weird.

 

[Norm Peterson]

You don't want to adjust the camber between the hub and strut, you give up braking ability and the camber gain goes away with steering input. All of your camber adjustment should be made in the top strut mounts. Fix that first, it will probably also fix the rubbing issue that you have between the tire and the strut.

No. The tire rubbing on the strut body cannot be fixed by moving the camber plate setting. You need to alter the relationship between the strut's own angle and the stub axle shaft that's part of the knuckle, in the direction that moves camber in the less negative/more positive direction. Then adjust the camber plates to get back the camber you had to give up at the knuckle.

Braking will not be affected either way as long as the resulting camber (done more at the camber plates and less at the strut fasteners) remains the same. I doubt the camber gain curve changes enough to matter.


Norm

 

[jmauld]

No. The tire rubbing on the strut body cannot be fixed by moving the camber plate setting. You need to alter the relationship between the strut's own angle and the stub axle shaft that's part of the knuckle, in the direction that moves camber in the less negative/more positive direction. Then adjust the camber plates to get back the camber you had to give up at the knuckle.

I was talking about fixing it by getting rid of the camber caused by the slotted holes on the lower strut mounts. Not with the camber plates. Sorry if I wasn't clear.

 

[Arustik]

Thanks all. I will forward this info to the tech and will report back. Next event is on the 20th.

I order the Hub set from AM yesterday, they don't sell lugs though. Can't I just run Ford Racing open ended lugs on the new extended studs? Any recommendations as to where to buy?

 

[csamsh]

Thanks all. I will forward this info to the tech and will report back. Next event is on the 20th.

I order the Hub set from AM yesterday, they don't sell lugs though. Can't I just run Ford Racing open ended lugs on the new extended studs? Any recommendations as to where to buy?

Buy the 17mm ones from Vorshlag. Makes it easier to get your socket in there.

 

[Arustik]

Buy the 17mm ones from Vorshlag. Makes it easier to get your socket in there.

Ordering now. Thank you sir!

 

[Arustik]

Looks like the knuckle that holds the sway bar is fixed and cannot be moved. On the R2 that knuckle is around 7mm thick which could be contributing the the additional space needed and resulting in the rubbing.

I guess the only thing that can be done is the addition of a spacer with extended studs.

 

[Sky Render]

How bad is it rubbing? The 285s I use for autox rub on my strut, but only at maximum steering lock.

 

[Arustik]

How bad is it rubbing? The 285s I use for autox rub on my strut, but only at maximum steering lock.

Bad enough for me to need a 10mm spacer. So strange. I did put in a stiffer (therefore shorter by 1" spring in there. I don't know if that would contribute to the rubbing issue.

 

[Arustik]

So we grinded down the struts to clear the wheel/tire setup. Doing so I lost 1 of my 2 pinch bolts on each strut.

Car felt great today with the Toyo RA1 275/35 tires + 3mm spacer. I drove my ass off, but left 5/10th out there.

I ended up getting creamed by a Boss 302 with 305 Pirelli Slicks, AST Coilovers, CC Plates, Race Seat, Harness - he beat me by 2 seconds and took FTD. He ran a 67.4, I ran a 69.4.

Here's my run. Advice is always appreciated. First time running R-Comps other than a few instructor runs in random cars:

https://www.youtube.com/watch?v=0ojDu1vBNBE

 

[csamsh]

Dang...very jealous of that site. Looks like fun.

 

[Arustik]

Dang...very jealous of that site. Looks like fun.

It is a great location. Moore Airfield is an abandoned air base which the State Police use to doing their training. There are a bunch of salvage cruisers in the place. Beats a parking lot any day.

 

[FullAhead]

It is a great location. Moore Airfield is an abandoned air base which the State Police use to doing their training. There are a bunch of salvage cruisers in the place. Beats a parking lot any day.

Devens! That's my neck of the woods... Well, at least relative to all you texans. I'm probably coming to the NER scca event on the 18th. How do you like the corvette club?

 

[Norm Peterson]

So we grinded down the struts to clear the wheel/tire setup. Doing so I lost 1 of my 2 pinch bolts on each strut.

Got pictures of what's left under there? I'm trying to imagine what held the alignment together well enough to run within a couple of seconds of FTD.


Norm

 

[Whiskey11]

Got pictures of what's left under there? I'm trying to imagine what held the alignment together well enough to run within a couple of seconds of FTD.


Norm

I think he was referring to the pinch bolts for the swaybar bracket Norm.

 

[Norm Peterson]

The sta-bar bracket isn't welded to the strut body?


Norm

 

[Arustik]

Devens! That's my neck of the woods... Well, at least relative to all you texans. I'm probably coming to the NER scca event on the 18th. How do you like the corvette club?

NER ran on Saturday, it's fun to run in.

BSCC is great, no BS, no drama, just a lot of seat time and fun/fast courses.

I think he was referring to the pinch bolts for the swaybar bracket Norm.

Yes, I could have rephrased that.

The sta-bar bracket isn't welded to the strut body?


Norm

Luckily I believe the R2 has a locking thread for the bracket and doesn't move even with the pinch bolts removed. We were thinking about going shorter with adjustable end-links and moving the bracket down closer to the center of the wheel (which is what the ASTs allow you to do).

 

[csamsh]

Luckily I believe the R2 has a locking thread for the bracket and doesn't move even with the pinch bolts removed. We were thinking about going shorter with adjustable end-links and moving the bracket down closer to the center of the wheel (which is what the ASTs allow you to do).

That is what the AST's do, but just be forewarned that you'll need some different endlinks for your bar if you choose to go this route. There's a multi-page endlink discussion about this very problem in the beginning of my build thread.

 

[Arustik]

That is what the AST's do, but just be forewarned that you'll need some different endlinks for your bar if you choose to go this route. There's a multi-page endlink discussion about this very problem in the beginning of my build thread.

I'm thinking my endlinks are making all sorts of noises. Any issues running my stock endlinks with Eibach R2 (no repositioning of bracket)?

 

[Norm Peterson]

Difficulty in retorquing the nuts sufficiently. And the earlier year cars are particularly susceptible to clunks and other noises when you can't get them tight enough.

Back when I installed shocks, struts, and Sam's sta-bars on my '08, I also sprung for UMI's rod-ended endlinks, which use socket-head through bolts instead of studs integral with the endlink pivot balls. This may prove to have been a fortunate choice on a separate level when the 18 x 11 Forgestars arrive.


Norm