:icon18:

The stupidity in this thread is off the chart.

So for anyone who is STOCK tire/suspension/alignment, hotchkis front bar isn’t helping your understeer and is probably too stiff.

TRACK tire/alignment/suspension, hotchkis front bar seems like the favorite.

If you’re somewhere in between stock and track setup, then driver preference, driving style, and car end goal most likely dictate which bar you like best. Try a few bars and see what u like. Figure it out on your own.

So we all leave it at that and end of story right? Lol


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Sway bar controls/restricts lateral weight transfers. It’s not a one size fits all. Driver’s skill, understanding, spring rate, tire size and compound, camber (and the subsequent camber curve) all work toward a result.

Too much weight transfer too quickly (disconnect the front sway), lateral momentum from the direction change will overwhelm the front tires, cause understeer.

Too little weight transfer (bar uber stiff but without grippier tire), then the outer front tire doesn’t get enough downward push, and you can get understeer as well. This is where skills and understanding comes in.

Someone that well versed trail braking and keep weight to the front, pushing the front down while changing direction, left foot brake to manipulate weight transfer during mid corner acceleration, a stiffer bar probably does great even with stock suspension. (Who was the member that drove for motoIQ, forgot his name…)

But for mortals that can’t dissect every milliseconds on the fly while going thru corners at triple digits, results will vary.

Not trying to keep this thread going for no reason (although this one is probably immortal), but to clarify with a stiffer bar, the outside tire is getting MORE downward push. Sway bar transfers load from the inside to the outside tire, resulting in more uneven load distribution. So ideally you’d want as little sway bar as possible so you get the most even load distribution between tires… =max grip


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I just about spit my drink out reading this. :rofl2:

Exactly and if you are undertired in size, compound and camber you will reach its limits and understeer. The wet will be even worse which is why some even disconnect sway bars and soften springs at the track (in general not sure about 370z)

I'm currently still tuning my Koni/swift setup and with the whiteline in soft (35% stiffer) -2.0 camber and jumping up from 50% firmer damping to 75% up front it is feeling much more direct and no push as with the stiffer bar.

Just so I interpret correctly on “inside” and “outside”, for example…

In a right hand turn (steering wheel turning right), right front would be inside, left front would be outside?

Inside should be the side of the car nearest to the corner.

You can write a book on suspension tuning and modification and people have. It's not something you can merely cover in a few sentences in a post. Read up on it, cv129 as posted the best concise explanation so far. But if you really want to know and educate yourself read a book.

:iagree:

Mucho Gracias

I actually did try the stiffest setting front and softest rear with my stillens on a wet track day with stock stagger just to see what everyone is talking about and concluded my original feeling that I do not need a super stiff front bar. front end was so incredibly loose and understeer I instantly put it full soft after 1st session. guess to each their own or maybe if I was squared but I don't see the need for a 200+% increase in the front. the new z1 bars look interesting as its close to the hotchkiss yet allows some adjustment.

Yea I def wish my Hotchkis front had some adjustability. Weird that their rear bar has it but not the front


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The new Z1 front does, with 2 holes:
Front Bar Stiffness (Over Stock)
Hole 1: 114% Increase
Hole 2: 165% Increase

Unsure how it compares to Hotchkis since they do stiffness vs various G's sways, and even though they are both hollow with 35mm OD's, hole placement is a big difference.

Right it’s like you can tune the balance of the car with just one but your doing it in a way that may not be the best idea? Your only able to fix any understeer by making the rear lose mechanical grip sooner rather than being able to let the front grip longer. Having a previous car with only one of the aftermarket bars being adjustable in the set and then having to swap out their non adjustable bar for their other different sized non adjustable bar I made sure I’d have both front and rear be adjustable that way I could try balance the car both ways to see what felt best. IMO they’re a tuning tool so not having any tunability just doesn’t sit right since no two drivers are going to feel the same exact thing.