How to fix wheel Hop

[Mikepage]

I think you can fix the shifter rattle during wheel hop with the whiteline trany bushing.

[ame="https://www.youtube.com/watch?v=dLzMO6_ZNHk&feature=youtube_gdata_player"]BRZ / 86 / FR-S Whiteline Positive Shift Kit - YouTube[/ame]

[Calum]

Originally Posted by DougW

Anybody tried a non torsen diff and still had the chatter?
DougW

Interesting theory. To the best of my knowledge the torsen works the same as a Quaife. I know in my last project car a Quaife helped to solve a lot of issues, including wheel hop. Would you mind expanding more on what your thinking is going on?

[Calum]

Originally Posted by Mikepage

This is not the point, they want to fix wheel up.

The diff, is not the problem... ;

I think the best way to start is the subframe bushing and differential bushing.

But it's so difficult to fixe the wheel up completly with indenpendant suspension setup this car have.

My friend on a 350z fixe a lot of wheel up with installing differentiel alluminum bushing.

Doug has more time on track then most of the people on this forum have on the earth. On top of that, if I'm not mistaken, he's a professional engineer. If he says it's a possibility, I'm listening.

[7thgear]

i had always thought it was just improper damper/spring settings for type of activity


also, surprised people are reporting wheelhop on stock tires in the rain. I did 3 autocrosses in the rain with hard launches no problems..

[Mikepage]

Originally Posted by Calum

Doug has more time on track then most of the people on this forum have on the earth. On top of that, if I'm not mistaken, he's a professional engineer. If he says it's a possibility, I'm listening.

Ok np i just don't know who is Doug...now i know

I just corrected my post

[7thgear]

Originally Posted by Mikepage

I think you can fix the shifter rattle during wheel hop with the whiteline trany bushing.

hmm

is it safe to say i'm some sort drugs if i was to comment that i'm not seeing any noticable difference between the two

if you pay attention to that big shiny bolt it moves quite a bit in both videos.. they also fudged up the hard launch in the whiteline video..

i was expecting a more drastic difference.

[OrbitalEllipses]

Originally Posted by Mikepage

I think you can fix the shifter rattle during wheel hop with the whiteline trany bushing.

[ url="https://www.youtube.com/watch?v=dLzMO6_ZNHk&feature=youtube_gdata_player"]BRZ / 86 / FR-S Whiteline Positive Shift Kit - YouTube[/url]

Nope, I have that bushing. Shifter still vibrates wildly when wheel hop occurs.

Originally Posted by 7thgear

hmm

is it safe to say i'm some sort drugs if i was to comment that i'm not seeing any noticable difference between the two

if you pay attention to that big shiny bolt it moves quite a bit in both videos.. they also fudged up the hard launch in the whiteline video..

i was expecting a more drastic difference.

^ Yeah, that.

[7thgear]

why they no make dis?

[chadstyle]

This is an interesting thread as I have never experienced wheel hop in my BRZ after a year of driving it. I'm curious to know if any of you having this problem have sway bars that may have been connected with one wheel up in the air or with a strange load on them. I installed the Eibach sways on day one of owning the car and torqued them down with all 4 wheels on the ground. I've launched the car a thousand times and never once had wheel hop.

Maybe since I modded the suspension on day one is the reason I never had this problem..I really don't know. I know I've seen sway bars tightened down in the wrong position wreak all sorts of havoc so just a thought..

[Mikepage]

Originally Posted by 7thgear

hmm

is it safe to say i'm some sort drugs if i was to comment that i'm not seeing any noticable difference between the two

if you pay attention to that big shiny bolt it moves quite a bit in both videos.. they also fudged up the hard launch in the whiteline video..

i was expecting a more drastic difference.

Good point, thanks for the detail.

[DylanFRS]

Originally Posted by chadstyle

This is an interesting thread as I have never experienced wheel hop in my BRZ after a year of driving it. I'm curious to know if any of you having this problem have sway bars that may have been connected with one wheel up in the air or with a strange load on them. I installed the Eibach sways on day one of owning the car and torqued them down with all 4 wheels on the ground. I've launched the car a thousand times and never once had wheel hop.

Maybe since I modded the suspension on day one is the reason I never had this problem..I really don't know. I know I've seen sway bars tightened down in the wrong position wreak all sorts of havoc so just a thought..

I only get it in the damp under attempted wheel spin. My rear end is completely stock.

[chadstyle]

Originally Posted by DylanFRS

I only get it in the damp under attempted wheel spin. My rear end is completely stock.

Good to know your rear end hasn't been tampered with..now tell me about your car.

Seriously though, I didn't drive long enough stock to know if my car had it when stock but I can tell you it has never had it with the Eibach springs/sways installed.

[Mikepage]

Am stock except Mach V springs and this happens rarely on bad road with a quick launch.

[DougW]

Because the torsen is similar to an open diff I have tried using them in racing twice and twice put them on the shelf. They tend to unsettle the rear drive as you get close to break away where as a clutch type tends to balance the drive, In either case it is drive train wind up and release over tire grip so if you increase spring rate you make the break away sharper so you pass through the zone but it is still there. Bushings all work to increase the spring rate of the diff so in effect make the zone narrow as well. A welded diff with solid mounts on slicks will still have chatter so I guess what I'm saying is try to improve it with diff bushings and shock control but don't think that anyone thing will fix it other than your right/left foot. Anybody going to SEMA needs to work on these people to build us a carrier a friend of mine just changed out a clutch type LSD on his 67 Vette to this and swears by it as the best of both worlds. http://www.wavetrac.net/
DougW