Thread: No front sway bar?

My car does rear in wheel lift.
By fitting a bigger ARB it would be worse... - right?

I don't think the bigger sway bar is the way to go. We had this discussion for a long time with a friend and we agree that improving grip in front is the way to go - not losing in the rear!

and oh yeah, we found the best setup to be 225 45 15s in front with 205 50 15s in back (hoosier R6) for track duty (putting 225s in rear does not allow the rear to rotate as much and provides too much stick in back IMHO)

You kids and your turbo'd AWD daily drivers... My daily is a Volt.

For 225s, how wide do those wheels have to be?

You can do 225 on a 7" wheel, but it might be a little sloppy for a track car. I'm considering it on my b14.
Subbed.

A bigger rear bar will make it worse, yes. That will tighten the rear end even more, making both left and right sides work together even closer and bring that one wheel up when the cornering loads increase on the outer wheel.

How tight or loose the rear end will be to have the best times will be different in every driver, let alone track... But the idea is better than trying to stiffen the rear to the point of no effect. Eventually the rear end stiffness will cause a snap when it becomes excessive. (as categorized from the OEM trait has having trail braking oversteer that we know of).

Ultimately, the game is how to play the slip angles to the favor of each driver and desired circumstance. This is why bigger, wider, stickier tires in the front will help toss around the rear. The only problem with doing this in a FF chassis is you have no throttle to correct the ass-end. And one of the reasons why I prefer to still watch BTCC racing to this day. Seeing FF cars drive all out is a bit different than FR chassis cars. Kinda fun to watch at that level I must admit. (And I always enjoy watching @Chris101 hubby in the P10 drive around)

We found the best success with 15x8 and 225 45 15 Hoosier R6 in front (the 15x7s we used them on in the past did work but not as well as the 8" wide)....

..and on our former b14, we used Kosei K4R 15x8 ET35 wheels with 5mm spacers in front with 15x7 Kosei K1 ET30 in back with 205 50 15s as an FYI

Thanks to the rear beam you have a super high rear roll center, once the rear wheel lifts, all the weight is transferred to the front outer tire, overloading it and causing massive understeer. Two way to really fix it, really stiff rear springs that reduce roll and a panhard bar with much lower roll center.



Are you guys fitting 225's on the P10/P11? I'm considering 16's or 17's now for running a wider tire but not sure at which point it will rub. This is why I'm thinking about just going macstrut on my p11

We were running 225s on the front of the 200sx SE-R and also on the front of the p10 (although this year we ran 205s on 15x8s on the g20)

The front of the 200sx only required 5mm spacers with the 15x8 K4R Kosei's in ET35 with 225 45 15 Hoosiers but the p10 requires ET35 or ET40 with 5mm spacers with 15x8s AND rolled AND pulled front fenders to prevent any rubbing issues.

We found rubbing on back of the g20 with 225 45 15 Hoosier R6 and pretty much went with 205s in back since that experience. 225 45 15s fit okay on back of the 200sx SE-R when mounted to ET30 15x7 Kosei K1 wheels.

We didn't like the idea of going to 16s or 17s due to cost of tires and overall height being too tall and ruining the gearing we grew to love.

To give you an example, we ran 225 45 15s back-to-back with 225 50 15s on front and the gearing change was horrible on the 50 profile (which would end up being the same ride height trying to use 225s on 16s and even worse with 17s)

I just ran with 225/45R15s all around at streets and had no problem getting the rear to come around. Having higher tire pressure in the rear helps with that.

Might have to try the 225F & 205R setup in February.