Going Square, what is needed?

[Fabman]

why did you go to a torque arm?

Supposed to be better for bite.
I had a properly set up 3 link and experienced the same problems.
What's funny is that at the drags this same car making almost 700/700 would bite 100% and 60 foot in 1.4 seconds @ full weight on 10" Drag radials.

 

[DaveW]

You might have covered this, but is your axle housing still aligned properly (camber and especially toe).

My autocross car will tweak the 9 inch housing every once in a while and all of the sudden, it won't put power down. A toe check will show toe-out, when I fix that things are back to normal.

DaveW

 

[Fabman]

You might have covered this, but is your axle housing still aligned properly (camber and especially toe).

My autocross car will tweak the 9 inch housing every once in a while and all of the sudden, it won't put power down. A toe check will show toe-out, when I fix that things are back to normal.

DaveW

I have a computer printout but I don't trust that machine.
I'll put my toe boards on it this weekend and check for real.
Good call though. Thanks.

 

[Fabman]

Longacre toe plates show 3/64ths toe in on diff.
Swapped plates around to compare measurements and still 3/64's toe in.
Swapped tapes around to compare measurements and still 3/64's toe in.
Too bad, a toe'd out rear end would have been an easy fix.

 

[TMSBOSS]

Time for a housing with adjustable Camber and toe??

OPM.

 

[Fabman]

I'd love that....but $

 

[VoodooBoss]

Maybe Phoenix Performance has a used one for sale. @blacksheep-1

 

[Mad Hatter]

That would be nice. But don"t those race axles have set a camber??..... Bit lost how you get adjustable toe and camber with our chariot setup!! WHat did I miss!!??

 

[DaveW]

Longacre toe plates show 3/64ths toe in on diff.
Swapped plates around to compare measurements and still 3/64's toe in.
Swapped tapes around to compare measurements and still 3/64's toe in.
Too bad, a toe'd out rear end would have been an easy fix.

That doesn't sound like very much, especially in a non floater, but better than toe out. I have had thrust angle cause corner exit traction problems too. But I doubt either of these would be anything to do with your issue.

Sorry I was no help

DaveW

 

[DaveW]

That would be nice. But don"t those race axles have set a camber??..... Bit lost how you get adjustable toe and camber with our chariot setup!! WHat did I miss!!??

Careful application of heat in the proper places. Without a floater, you won't be getting huge camber or toe numbers, but you can correct minor issues.

DaveW

 

[Fabman]

That doesn't sound like very much, especially in a non floater, but better than toe out. I have had thrust angle cause corner exit traction problems too. But I doubt either of these would be anything to do with your issue.

Sorry I was no help

DaveW

No sir, you were very helpful. You made me go back and look at something that I took for granted even though I know better. We all need to be reminded of the most basic principles from time to time because so many problems lie within the fundamentals. Fundamentals that often are taken for granted....which brings us full circle.
Thank you for taking the time to remind me.

 

[Fabman]

Careful application of heat in the proper places. Without a floater, you won't be getting huge camber or toe numbers, but you can correct minor issues.

DaveW

Yep, I have a lot of experience with stock cars and a lot of brackets get welded on them for different applications. It's expected that they will bend and are checked and straightened as you go. I've straightened more than I can remember, I just assumed that since this one was stock and hadn't been welded on that it didn't occur to me that it may be bent. I checked it once, 2 years ago and then forgot all about it. Thanks again for the reminder.

 

[blacksheep-1]

Maybe Phoenix Performance has a used one for sale. @blacksheep-1

Good luck with that, although they've sold some cars with them on it.

 

[2012Boss302]

Waking this up again.

I have a friend who is thinking of going square.

His current set up is stock Boss struts/shocks, stock Boss F/RSB, Ford Boss "T" springs, full BMR rear U/L Control Arms, relocation bracket, and BMR panhard.

From what I am reading here, if he goes 19x10 with 285 MAYBE 295 square, he should get the 20 or 22 mm RSB and set all four shocks to 5.

Did I miss anything? Thanks for the help.....

 

[ArizonaBOSS]

Waking this up again.

I have a friend who is thinking of going square.

His current set up is stock Boss struts/shocks, stock Boss F/RSB, Ford Boss "T" springs, full BMR rear U/L Control Arms, relocation bracket, and BMR panhard.

From what I am reading here, if he goes 19x10 with 285 MAYBE 295 square, he should get the 20 or 22 mm RSB and set all four shocks to 5.

Did I miss anything? Thanks for the help.....

The biggest contributing factor (in my experience) is to remove some of the rear bar stiffness since the car will now have more front grip compared to stock (now in an oversteer condition)--so that 20 or 22mm should help bring the car back to "neutral" quite a bit vs. the OEM BOSS or LS bar.

Not sure how that will play with the rest of the components but he may have to drive it cautiously and creep up on the limit until he is sure.

 

[Fabman]

The biggest contributing factor (in my experience) is to remove some of the rear bar stiffness since the car will now have more front grip compared to stock (now in an oversteer condition)--so that 20 or 22mm should help bring the car back to "neutral" quite a bit vs. the OEM BOSS or LS bar.

Not sure how that will play with the rest of the components but he may have to drive it cautiously and creep up on the limit until he is sure.

How big is the stock boss rear bar?

 

[SavetheManuals]

@Fabman 25mm Boss 26mm LS

 

[Fabman]

@Fabman 25mm Boss 26mm LS

Wow.....big.

 

[2012Boss302]

Waking this up again....

I understand a 22mm rear bar may be cheap.

How about keeping the stock Boss RSB and going with an adjustable Strano front bar??

 

[SavetheManuals]

Waking this up again....

I understand a 22mm rear bar may be cheap.

How about keeping the stock Boss RSB and going with an adjustable Strano front bar??

That was my initial thought too since I didn't want to lose any roll resistance by going with a smaller bar.
Should work, just more expensive and my understanding is that it may not "settle" the rear end down as much as going with a rear smaller bar, for better/earlier power delivery.
I ended up getting some smaller RSBs cheap so I will play around with those first once I get new tires, then decide if I like the smaller RSB setup or want to go with a stiffer front.