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High Speed Cornering

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Offline Zukipilot

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High Speed Cornering
« on: September 28, 2004, 02:35:12 AM »
OK, I know this is a 4x4 web site, but hey, it's a 4x4 Suzuki ;D

My 98 X-90 has a Calmini 2" lift on it and larger than stock tires (Street tires). If I hang a corner at high speeds turning right it is stable, drifts evenly and is very confident handling. But, turning left in the same situation it feels like the front end wants to push out and feels unstable.

Any one have any idea of what would cause this.  ???

All of my shocks and struts are good, new tires that are balanced have even air pressure and a recent alignment.

Zig
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'92 Liberty Overland Sidekick

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Offline SiKiD_01

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Re: High Speed Cornering
« Reply #1 on: September 28, 2004, 02:48:36 AM »
you know, its funny you should bring this topic up. even though my reply might not have an inch of relevance, i'm going to put it out there anyway.

only just recently (past couple of weeks) i've noticed that when i drive off from a set of traffic lights when stationary, the front left of my vitara lifts first. its more so when medium acceleration is used rather than hard acceleration.

i've put it down to the direction the motor (crank) spins. i've read a few other articles on this similar topic, which mentions going up an acsent, such as a hill, and half way up there's an obstacle, if you go around on the right of the obstacle, the car is stable, but if you go left around the obstacle, the car has a tendancy to roll, or something like that. don't hold me to it though.

another place that i see it often, is in drag cars/street drag cars, which have a rotary engine in them. when they launch, its always the front left (i think) that lifts.

i've also experienced this on a motor bike, a BMW, which had a flat twin, (cylinders are parallel to the ground). so when i was sitting on it, and revved it, the bike wanted to tip over to one side.

so, maybe it's because of the direction the engine is spinning.

i don't know either, so if anyone has an answer, please let up know.

steve
« Last Edit: September 28, 2004, 02:51:02 AM by sikid_01 »
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Offline Whipp

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Re: High Speed Cornering
« Reply #2 on: September 28, 2004, 04:16:24 AM »
Is your antisway bar connected?  Could one bushing on the antisway bar be binding, causing it to act asymetrically?  With one bushing totaly bound, the antisway bar would act like two unequal rate torsion bars, resisting movement on one side more than the other.

Before I disconnected my antisway bar, both bushings on the frame were binding, which really affected the ride.

- Craig
1989 Sidekick with 3" Calmini suspension, Old Man Emu Struts, Calmini header and exhaust combo, A/C on board air.
- Sold to my brother!

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Offline INGERSOL

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Re: High Speed Cornering
« Reply #3 on: September 28, 2004, 04:20:37 AM »
Maybe its because you weigh like 300 pounds and the poor little x-90 is just off balance.  ;D

 
When you are seated n the vehicle, how many inches higher is the passenger side (due to the additional weight in the drivers seat)?

I think this may be the problem...
« Last Edit: September 28, 2004, 04:21:04 AM by INGERSOL »
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Offline Rhinoman

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Re: High Speed Cornering
« Reply #4 on: September 28, 2004, 06:27:07 AM »
I disconnected my anti sway bar because it fouled on the steering linkage preventing the (my) drivers side wheel from dropping fully. That may have something to do with it. Oh and its a long time since I saw that pic of the Vauxhall Chevette, I remember seeing him on TV, he used to drive a slalom course leaning out of the window and picking up coke cans. He held some world record for it  ::)

Suzuki SJ with LJ front end:

« Last Edit: September 28, 2004, 06:30:36 AM by Rhinoman »
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Offline trackermad

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Re: High Speed Cornering
« Reply #5 on: September 28, 2004, 07:22:41 AM »
I think Skid is on the right track.  The rotational force of the driveshaft wantts to pick up your right rear tire when you gass it.  Thats why without a posi or locker its always the right rear that will spin first in a straight line.  From what I hear the 2 inch kit is pretty supple in the rear which might let the axil twist more than stock.  So when you turn right and gas it the right rear lifts and leans you into the turn making you more stable.  When you turn left you and gass it leans you out.  

thats my guess anyway
Patrick
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Offline Mikerpm4x4

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Re: High Speed Cornering
« Reply #6 on: September 28, 2004, 08:20:42 AM »
I think Skid and Ingersol are actually both right. Besides that... SLOW DOWN  Dont you read Consumer reports! ::)

Mike
« Last Edit: September 28, 2004, 08:21:21 AM by Mikerpm4x4 »
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Offline Zukipilot

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Re: High Speed Cornering
« Reply #7 on: September 28, 2004, 08:48:42 AM »
Slow Down, Hell No! An X-90 is a blast to drive fast ;D To throw another kink in it. If I'm holding the vehicle at a neutral position (no accaleration or dceleration) it is squirly, at slight acceleration it feels more stable and at hard acceleration it gets squirley again :-/  I'll test it out again to see on the way home ;)

Is there any way to fix it where it will handle the same in each direction (left and right). Besides buying a Vette to replace the X-90 :P

Zig
Zukipilot
'92 Liberty Overland Sidekick

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Offline DirtDevil

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Re: High Speed Cornering
« Reply #8 on: September 28, 2004, 09:15:32 AM »
I have alot of experience making my race kart do 130 around tight corners, but never a tracker :P... it is a bit similar though, around corners my karts set up to lift the inside rear wheel to prevent drag and for the tires on the opposite side to bite.. being direct drive ( strait from crank to axle ) and a solid 35 mm tube axle this was very important, as u can imagine lol
Sj410 Full exo, Locked, race buckets, 5 point
85.5 LWB sami, Toy axles, locked rear, CJ/RUF, warn 8000, 33's

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Offline Mike71

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Re: High Speed Cornering
« Reply #9 on: September 28, 2004, 09:21:30 AM »
i can pick the left front tire of my moms GV off the ground when i make a left..is that what ur talking about? lol aside from the noise the tire makes when it hits the ground again u cant hardly tell =)
623hp kb cobra sold! 100hp kick new DD :P

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Offline ebewley

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Re: High Speed Cornering
« Reply #10 on: September 28, 2004, 10:23:20 AM »
Quote
Slow Down, Hell No! An X-90 is a blast to drive fast ;D To throw another kink in it. If I'm holding the vehicle at a neutral position (no accaleration or dceleration) it is squirly, at slight acceleration it feels more stable and at hard acceleration it gets squirley again :-/  I'll test it out again to see on the way home ;)

Is there any way to fix it where it will handle the same in each direction (left and right). Besides buying a Vette to replace the X-90 :P

Zig


Check your idler arm and tie-rod ends for excessive movement. I bet under load your front end is loose...  :o and is going out of alignment.

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Offline DirtDevil

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Re: High Speed Cornering
« Reply #11 on: September 28, 2004, 11:04:29 AM »
the idler arm on jennys wore out and we drove all the way to gold river and back on it, it was sketchy, easy to fix though, it effects steering big time, if you hit any rut in the road the truck would want to follow it and shake all over
Sj410 Full exo, Locked, race buckets, 5 point
85.5 LWB sami, Toy axles, locked rear, CJ/RUF, warn 8000, 33's

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Offline hcgalvin

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Re: High Speed Cornering
« Reply #12 on: September 28, 2004, 12:04:08 PM »


don't try this at home....

Heather Galvin
2005 GV with Zuki Nation 4.5" Lift.
Sidekick's gone... Still have Bob's Knob.

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Offline Zukipilot

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Re: High Speed Cornering
« Reply #13 on: September 28, 2004, 11:13:15 PM »
Quote


Check your idler arm and tie-rod ends for excessive movement. I bet under load your front end is loose...  :o and is going out of alignment.

-Eric


I will ,thanks!
Zig
Zukipilot
'92 Liberty Overland Sidekick

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Offline Zukipilot

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Re: High Speed Cornering
« Reply #14 on: September 28, 2004, 11:15:10 PM »
Quote
the idler arm on jennys wore out and we drove all the way to gold river and back on it, it was sketchy, easy to fix though, it effects steering big time, if you hit any rut in the road the truck would want to follow it and shake all over


My X follows ruts in the road a little but not to bad, and no shakeing though.
Zig
Zukipilot
'92 Liberty Overland Sidekick