MX3 traction bars - Installation Howto

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hppwdn
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MX3 traction bars - Installation Howto

Post by hppwdn »

Ever since I got my MX3 I've wanted to make some traction bars for it just like I had on my probe. I got in touch with janz99 from Probetalk and he agreed to make me a set if I sent in all the measurements.

These things are great. Really straight forward install and they work wonders for wheel hop. Especially for those that don't have aftermarket LCA bushings.

Pretty much just undo the ball joints, remove a stud, drill a hole, and you're done. I made a howto on the install. There's pics where necessary. Click on any of the pics for fullsize versions.

1) Get car up on jackstands and remove the wheels.

2) Remove the LCA bolt closest to the engine. Really long 17mm bolt. Place Traction Bar bracket on and replace using stock hardware.
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3) Unbolt ball joint from control arm. Should look like this when you get done.
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4) Remove the stock stud for the ball joint. I used a hammer. It should be in there pretty good, but after some convincing it pops right out. You'll be replacing this stud with a longer bolt to make room for the traction bar bracket. (included with tbars)
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Here's a pic of how the ball joint and Traction Bar bracket will line up.
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The spacer shown in the pic goes on top of the control arm over the hole where the stud was.
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Here's the bracket bolted onto the control arm
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5) Now it's time to drill the hole for the other Traction Bar bracket bolt. This bolt is there to make sure the bracket doesn't slide around under load. Make sure your bracket is in place so the washers don't over lap each other. Then drill the hole thru the LCA. If you don't have the right size bit you'll have to open the hole up a little further. Make sure you remove the bracket before doing this so you don't damage it.
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Pic of the hole all drilled and ready.
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The bottom should look like this once everything is all bolted down.
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6) Now just attach the heim joints to the brackets and tighten it down. Make sure to have the joints extended a little out of the threaded rod when you do your install. This will allow room for adjustment once you're done.
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Last edited by hppwdn on August 11th, 2008, 9:36 am, edited 2 times in total.
92 MX3 Turbo ($100 junkyard KLG4) 11.904 @ 124.3mph, 14psi, DOT approved Hoosier drags, pump gas.
NSCRA 2009 FWD Drag Radial Finalist
HIN/NOPI Supershow Class Winner - Miami 2010 - Street-Sport Compact-Mazda
Links: Pretty Pic, GoFast Pic, Timeslip, Track Video
As of July 2011 the MX3 has been retired and sold.
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Re: MX3 traction bars - a reality

Post by fowljesse »

Nice write-up!
I haven't seen these on an MX-3 in about 3 years.
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Re: MX3 traction bars - a reality

Post by hppwdn »

We're gonna work on a bulk buy. These are made specifically to fit MX3s.
92 MX3 Turbo ($100 junkyard KLG4) 11.904 @ 124.3mph, 14psi, DOT approved Hoosier drags, pump gas.
NSCRA 2009 FWD Drag Radial Finalist
HIN/NOPI Supershow Class Winner - Miami 2010 - Street-Sport Compact-Mazda
Links: Pretty Pic, GoFast Pic, Timeslip, Track Video
As of July 2011 the MX3 has been retired and sold.
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Re: MX3 traction bars - a reality

Post by onlytrueromeo »

What else do these do besides prevent wheel hop off the line?
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Re: MX3 traction bars - a reality

Post by mitmaks »

onlytrueromeo wrote:What else do these do besides prevent wheel hop off the line?
what else you want them to do? this is for drag racing applications only. if you want to decrease your R/T and improve your 1/4 mile you should get these.
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Re: MX3 traction bars - a reality

Post by wytbishop »

onlytrueromeo wrote:What else do these do besides prevent wheel hop off the line?
Under really hard acceleration inertia acts on the mass of the car attempting to keep it at rest while the wheels are trying likehell to go forward really fast. The control arm bushings would tend to deform and allow the control arm to deflect forward. The traction bar links the control arm to the frame of the car preventing it from changing the geometry of the suspension on hard acceleration.

That's my take from the point of view of someone who doesn't actually know.
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Re: MX3 traction bars - a reality

Post by Nd4SpdSe »

You know, I've wanted these things since I've gotten my ZE in.

Honestly tho, I'm surprised a traction bar that runs parallel to the control arm actually works. You'd think you'd want it to run an an angle (ideally parallel, but that's not possible unless you want to restrict the LCA's up-down movement) to use the torsional strength of the bar. It would work if you had joins with no horizontal movement, but those joints do have some pivot ability, as well as the bar may have some flex relying on it's ability to resist flex/bending to strengthen the LCA.

However, if hppwdn says it works, I'd believe it and more likely would get in on a set.
1992 Mazda Mx-3 GSR - 2.5L KLZE : Award Winning Show Car & Race Car ['02-'09] (Retired)
2004 Mazda RX-8 GT - Renesis Wankel : LS3 Coils, BHR Mid-Pipe + Falken RT-615K 245/40r18
2011 Mazda Mazda2 GS - 1.5L Manual : Yozora Edition (1 of 500)
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Re: MX3 traction bars - a reality

Post by Daninski »

Man I'm really out it. That write up was great. I thought wheel hop was a result of poor suspension, usually springs that are too soft and shocks that are too mild mannered. This is a new concept for me. Everyday is an education that's for sure. How can I tell if I have wheel hop? So far if I accelerate aggressively all I feel is the wheels breaking loose and spinning. Use to be with rear wheel drive you'd feel a banging sound.
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2002 Subaru WRX Blue, SOLD (best E test numbers I've ever seen)
94 MX-6. Sold
92 GS KLZE 5 Speed
96 GS 5 speed, KLZE, Sold
95 GS Minty Shape Sold
92 GS Sold
92 GS Parts Car scrapped.
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Re: MX3 traction bars - a reality

Post by hppwdn »

Nd4SpdSe wrote:You know, I've wanted these things since I've gotten my ZE in.

Honestly tho, I'm surprised a traction bar that runs parallel to the control arm actually works. You'd think you'd want it to run an an angle (ideally parallel, but that's not possible unless you want to restrict the LCA's up-down movement) to use the torsional strength of the bar. It would work if you had joins with no horizontal movement, but those joints do have some pivot ability, as well as the bar may have some flex relying on it's ability to resist flex/bending to strengthen the LCA.

However, if hppwdn says it works, I'd believe it and more likely would get in on a set.
Wheelhop is actually generated from the the control arm moving front to back while the tire is trying to catch traction. These prevent the control arm from moving front to back under load. It's actually the same theory the original PMO bars worked on. Just in a much smaller package. The probe guys have been running this style for a few years.
92 MX3 Turbo ($100 junkyard KLG4) 11.904 @ 124.3mph, 14psi, DOT approved Hoosier drags, pump gas.
NSCRA 2009 FWD Drag Radial Finalist
HIN/NOPI Supershow Class Winner - Miami 2010 - Street-Sport Compact-Mazda
Links: Pretty Pic, GoFast Pic, Timeslip, Track Video
As of July 2011 the MX3 has been retired and sold.
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Re: MX3 traction bars - a reality

Post by Daninski »

Probe guys? I haven't heard of a single Probe that has done anything other than occupy space in a parking lot. So as with Ford now and then their Lame city. I saw this guy the other day with 5.0 on the side of his 71 Mustang. What an idiot, we didn't even use metric then. He started off quick but backed off when I left him in my rear view. Next!
I respect your tech, I just have no time for Probes in our forum.
2004 Subaru WRX Silver, stage 2, minty interior.
2002 Subaru WRX Blue, SOLD (best E test numbers I've ever seen)
94 MX-6. Sold
92 GS KLZE 5 Speed
96 GS 5 speed, KLZE, Sold
95 GS Minty Shape Sold
92 GS Sold
92 GS Parts Car scrapped.
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Re: MX3 traction bars - a reality

Post by hppwdn »

Daninski wrote:Probe guys? I haven't heard of a single Probe that has done anything other than occupy space in a parking lot. So as with Ford now and then their Lame city. I saw this guy the other day with 5.0 on the side of his 71 Mustang. What an idiot, we didn't even use metric then. He started off quick but backed off when I left him in my rear view. Next!
I respect your tech, I just have no time for Probes in our forum.
:confused2: If it makes you feel better take out probe from everything I typed and replace it with MX6. It's the same car. They both have Mazda KL engines and were both assembled in the Flat Rock Michigan plant. Except the probe had much larger production numbers. And that is why most people say probe when referring the probe/mx6 platform.

btw: my roommates probe (which is my old one) runs a 12.6 at 116 boosted on a stock DE from the junkyard and street tires. So at least one probe is doing something other than sitting in parking lot.
92 MX3 Turbo ($100 junkyard KLG4) 11.904 @ 124.3mph, 14psi, DOT approved Hoosier drags, pump gas.
NSCRA 2009 FWD Drag Radial Finalist
HIN/NOPI Supershow Class Winner - Miami 2010 - Street-Sport Compact-Mazda
Links: Pretty Pic, GoFast Pic, Timeslip, Track Video
As of July 2011 the MX3 has been retired and sold.
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Re: MX3 traction bars - a reality

Post by Daninski »

The probe guys have been running this style for a few years. Respect for your tech but we don't care what the Probe guys do. 12.6 and street tires. OK
EDIT: No disrespect intended, the probe guys thing didn't fit well. Your tech is 100% and I thank you for posting it.
2004 Subaru WRX Silver, stage 2, minty interior.
2002 Subaru WRX Blue, SOLD (best E test numbers I've ever seen)
94 MX-6. Sold
92 GS KLZE 5 Speed
96 GS 5 speed, KLZE, Sold
95 GS Minty Shape Sold
92 GS Sold
92 GS Parts Car scrapped.
Feedback viewtopic.php?f=37&t=66348" onclick="window.open(this.href);return false;
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I know you believe that you understand what you think I said but I'm sure you realize that what you heard is not what I meant.
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Re: MX3 traction bars - a reality

Post by hppwdn »

Daninski wrote:The probe guys have been running this style for a few years. Respect for your tech but we don't care what the Probe guys do. 12.6 and street tires. OK
EDIT: No disrespect intended, the probe guys thing didn't fit well. Your tech is 100% and I thank you for posting it.
No big deal, I just found your probe comments a little odd. Since we share the same engine I've always considered the Probe/MX6/MX3/626/Millenia world one big family of cars.
92 MX3 Turbo ($100 junkyard KLG4) 11.904 @ 124.3mph, 14psi, DOT approved Hoosier drags, pump gas.
NSCRA 2009 FWD Drag Radial Finalist
HIN/NOPI Supershow Class Winner - Miami 2010 - Street-Sport Compact-Mazda
Links: Pretty Pic, GoFast Pic, Timeslip, Track Video
As of July 2011 the MX3 has been retired and sold.
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Re: MX3 traction bars - Installation Howto

Post by wytbishop »

I have to say that if you spend a bit of time on PT those guys have done way more with the K family of engines than we have. I don't like the tone of their forum and I think there's a lot of guys there with big chips on their shoulders, but they have figured a lot of stuff out just through sheer volume of members. If Mazda had made 3X as many mx-3's as they did we'd have Probe like aftermarket support and we would be light years ahead of where we are. Projects like this traction bar setup are really important. If we want cool stuff for the MX-3 we have to make it ourselves.
94' RS/GS/MS/CF Monster Turbo...coming soon.
93' GS SE, the Black Beast, the former love of my life...soon to be gutted and crushed.
94' GS, black on black, now in several small pieces...and one large crushed piece.
2007 Mazda3 GT Sport --- super fun
2004 Honda RC51 --- Lost forever to some theavin' bastard
My Worklog
My feedback thread
Never attribute to malice that which can be adequately explained by stupidity.
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Re: MX3 traction bars - Installation Howto

Post by Nd4SpdSe »

If it wasn't for the Probe/Mx-6'ers, we wouldn't nearly have the mods available for the K-series motors that are current available, we own it to them
Since we share the same engine I've always considered the Probe/MX6/MX3/626/Millenia world one big family of cars.
I agree, and I think most of us think the same way.
1992 Mazda Mx-3 GSR - 2.5L KLZE : Award Winning Show Car & Race Car ['02-'09] (Retired)
2004 Mazda RX-8 GT - Renesis Wankel : LS3 Coils, BHR Mid-Pipe + Falken RT-615K 245/40r18
2011 Mazda Mazda2 GS - 1.5L Manual : Yozora Edition (1 of 500)
2003 Nissan Xterra SE - 4x4 Supercharged : 2" Body Lift, 4" Suspension Lift & 33" MTR Kevlar
2001 Nissan Frontier SE - The Frontrailer : Expedition/Off-Road Trailer Project
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