The Top Mitsubishi Galant VR-4 Resource

Join the best E39A 1991-1992 Mitsubishi Galant VR-4 community and document your GVR4 journey. Login to browse without most ads.

size of the stock sways

Brunoboy

Well-known member
Joined
Apr 25, 2008
Messages
2,880
Location
San Bruno,CA Home of SFO
I was on Ultra Racings website and they make sways and strut bars for the car as well as the fender bars that other members have put on. I was just wondering what the stock sway bars were in size compared to the 23mm UR makes.
-Shane
 

Tre3zy

Well-known member
Joined
Nov 25, 2008
Messages
602
Location
South San Francisco, CA
i dont think the galants came with rear sways because of the 4WS.... i could be wrong though but when i looked under the car i didnt see one....
 

Brunoboy

Well-known member
Joined
Apr 25, 2008
Messages
2,880
Location
San Bruno,CA Home of SFO
Quoting Tre3zy:
i dont think the galants came with rear sways because of the 4WS.... i could be wrong though but when i looked under the car i didnt see one....


Thats what I thought, I actually never looked for a front or rear. Do we have both?
-Shane
 

Quoting Tre3zy:
Guess i was wrong then lol.... But installing a thicker swaybar in the rear wouldnt that make the car oversteer more?



ooo hey I just wrote a paper on this haha. Most cars are tuned for understeer from the factory because that's supposedly easier to control. By adding a stiffer rear sway bar you would be stiffening up the rear and landing somewhere in the neutralsteer/oversteer category which is ideal for people looking to perform.
 

alansupra94

Well-known member
Joined
Mar 3, 2010
Messages
1,909
Location
Wayne,NJ
Post the paper. I want to turn GVR4 into a forum of intellectually savvy car tuners so we shall require one research paper a year.
 

Well it's technically a paper outline and a presentation to go with it. Here's the link to an article written by Modified that we sorta based our presentation around. It's handling performance in general. They've got plenty of nice diagrams that explain oversteer/understeer. I'm currently taken a vehicle dynamics class which has also touched on this topic a little bit. I'll gladly post up a bunch of slides with boring equations and whatnot if you guys really want haha. For now, here's a nice article: Handling and Cornering Improvements

ps. I also own a 98 subaru impreza 2.5rs and it's funny to see a thread like this in the gvr4 forums when beefing up swaybars is like the #1 mod all the subaru guys do haha. I can tell ya that on my rs it was night and day with that new rear sway bar. I'd like to throw one on the galant when I get to that point.
 
Last edited by a moderator:

Tre3zy

Well-known member
Joined
Nov 25, 2008
Messages
602
Location
South San Francisco, CA
I was just wondering cus i thought of installing my whiteline 26mm swaybar in the rear with the 4ws intact but i thought about it the 4ws already makes the car oversteer a lil bit so installing it would be a good idea unless you auto x the car... So i just decided to put it in my TEL 4 bolt rear sub frame thats going in the car soon
 

prove_it

Well-known member
Joined
Jul 3, 2008
Messages
4,201
Location
Sioux Falls, SD
From the factory the Galant Vr4 was equipped with 21mm front and 19mm rear. The front bar is decent enough for daily driving conditions. The rear bar is too small and does create the understeer effect like mentioned before that makes the car more predictable. It's best to swap out the rear bar first and see how you like the results. Front bars are usally only needed if your doing some crazy auto-x. It's also recommended to replace your sway bar links due to age and most likely they are loose/worn out.

On a second note:
The VR4 and dsms share the same rear subframe. Due to this the sways are interchangable. However, if your car still has 4WS then a dsm bar will NOT work due to the tie rods on the rear rack. If you've deleted the 4WS then either a VR4 or dsm bar will work. The front bars are the same. DSM's come with 19mm(IIRC) stock front bar.

Again, 21mm front bar and 19mm rear bar is what the VR4 has factory.

Hope this helps!
 

jepherz

Staff member
Joined
Aug 8, 2004
Messages
7,878
Location
KC, Missouri
Quoting Tre3zy:
I was just wondering cus i thought of installing my whiteline 26mm swaybar in the rear with the 4ws intact but i thought about it the 4ws already makes the car oversteer a lil bit so installing it would be a good idea unless you auto x the car... So i just decided to put it in my TEL 4 bolt rear sub frame thats going in the car soon



Um, you have that backwards. Since our 4WS makes the rear wheels turn the SAME direction as the fronts, you can imagine what happens when they actually turn. The 4WS in our cars was intended to make quick lane changes more stable, when you want to continue in a straight line.
 

4thStroke

Well-known member
Joined
Oct 22, 2007
Messages
1,864
Location
Vancouver, WA
Upgrading the rear swaybar is not going to push the car into the "neutral" category.

Depending on what you are looking for and how spirited your driving habits are, get the largest front and rear swaybars you can find. Yes, even the front. People will tell you that it's only going increase understeer, but that is not the case, there is more to it than that. The gains from running the large swaybars negate the harshness added (minimal).

Even with the largest bars you can find, the car will still understeer. The active rear toe has to go. I have yet to do this, so I can't give any first hand experience impressions, but the system was designed to induce understeer.

On top of all that, replace as many bushings as you can. I've done the front with Prothanes and the Whiteline caster bushings and have a box full of bushings for the rear waiting for install.

Even at 440whp, a cranked steering wheel, LSD 4 bolt, aggressive alignment, and above mods, the car still understeers when pushed in corners. I have to get crafty with the steering wheel to get it to slide like most of want it to.
 
Last edited:

Tre3zy

Well-known member
Joined
Nov 25, 2008
Messages
602
Location
South San Francisco, CA
Quoting jepherz:
Quoting Tre3zy:
I was just wondering cus i thought of installing my whiteline 26mm swaybar in the rear with the 4ws intact but i thought about it the 4ws already makes the car oversteer a lil bit so installing it would be a good idea unless you auto x the car... So i just decided to put it in my TEL 4 bolt rear sub frame thats going in the car soon



Um, you have that backwards. Since our 4WS makes the rear wheels turn the SAME direction as the fronts, you can imagine what happens when they actually turn. The 4WS in our cars was intended to make quick lane changes more stable, when you want to continue in a straight line.



oh cool haha sorry noob here /ubbthreads/images/graemlins/grin.gif
 

jepherz

Staff member
Joined
Aug 8, 2004
Messages
7,878
Location
KC, Missouri
For reference, one of my cars has the 26mm rear, and 22 (I think?) front, along with Hotbits suspension and street/summer tires, and I consider it to be very neutral on the track at speed.
 

prove_it

Well-known member
Joined
Jul 3, 2008
Messages
4,201
Location
Sioux Falls, SD
Quoting brunoboy:
So rear 26 with a stock 21 front should be good for dd and occasional mountains?



I would recommend picking up a 26mm whiteline adjustable bar from tunersnation and give it a try. See how it responds and play with your settings. This might be enough for you, if not then try a front bar too.

Don't forget about maintence though. New bushings can make a big difference. Also make sure your ball joints and tie rods are good. Our cars are 20 years old and even replacing good parts with new will help. For my build, I've been replacing bushings and joints first then heading into suspension mods.
 
Support Vendors who Support the GVR-4 Community
Boosted Fabrication ECM Tuning ExtremePSI Fuel Injector Clinic Jacks Transmissions JNZ Tuning Kiggly Racing Morrison Fabrications RixRacing RockAuto RTM Racing STM Tuned

Recent Forum Posts

Recent Classifieds Listings

Top