|
10-01-2015, 12:41 PM | #1 |
Drives: 2012 Yaris 5dr Hatch Join Date: Oct 2014
Location: Puerto Rico
Posts: 58
|
BMW rear shocks and Fit rear springs?
Im looking for ways to improve the performance of the yaris while keeping the stock height. Basically im looking to stiffen it up. I already have BMW rear shocks installed which are stiffer than oem and wont blow as easily. I saw a post on here saying that Honda Fit springs will fit the rear and that they have a slightly higher spring rate, which I assume would better match the BMW shocks. Do you guys think the Fit springs will leave me at about stock height at the rear?
|
10-02-2015, 09:26 AM | #2 |
Drives: Scion FRS RS2, ‘21 Crosstrek Join Date: Oct 2008
Location: Chatham, Ontario, Canada
Posts: 1,729
|
In your case, I would first install the dampers. They may be all you need to gain the improvement you desire. Installing the FIT springs is like rolling the dice. It may be successful or you may be higher or lower than the stock spec you desire.
__________________
TRD Upgrades: 18" Wheels wrapped in 215/35/18 PZero's, Sportivo Shocks/Struts, Lowering Springs, Swaybar, Axle-Back Exhaust, Oil Cap, Rad Cap, Signage. Aftermarket Goodies: Piggies SS, K&N Drop-In, Blitz S/C, DC Header, NST Pulley) Toyota Options/Accessories: Sport Pedal Covers, Sport Shift Knob, Ipod Interface, Summer Mats, Winter Mats, Cruise Control, Auto-Dim Mirror, Echo steelies with winter boots. |
10-02-2015, 09:48 AM | #3 |
1NZ-6spd
Drives: '05 6-Spd Vitz RS Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
Posts: 2,967
|
What BMW shocks did you use?
|
10-03-2015, 02:01 PM | #4 |
Drives: 2012 Yaris 5dr Hatch Join Date: Oct 2014
Location: Puerto Rico
Posts: 58
|
I have already installed the shocks several months ago. I used monroe brand BMW e46 shocks, sourced locally were around $80 for the pair. We welded a big washer were the original piston cover sits and then slid the cover over the washer. This was done because the outer diameter of the BMW shock was slightly smaller than the yaris one so I was afraid the piston would slide through the metal hole in the original cover. This is important because this cover is also the lower base for the mounting bushings. The only other mod needed was to make the mounting holes on the rear beam larger. This was done to accommodate larger bolts as the E46 mount has a larger sleeve than the OEM. Took around 2 hours to do all of it and had made a CONSIDERABLE difference, im still looking to get it slightly stiffer. It has seen some track use too
|
10-03-2015, 02:33 PM | #5 | |
Quote:
|
||
10-03-2015, 02:38 PM | #6 |
Drives: 2012 Yaris 5dr Hatch Join Date: Oct 2014
Location: Puerto Rico
Posts: 58
|
Ive thought about it, however I fail to see how adding a solid bar to an already solid bar has an impact. I simply cant understand why it would make a difference given out cars suspension design.
|
10-03-2015, 02:43 PM | #7 |
Drives: Scion FRS RS2, ‘21 Crosstrek Join Date: Oct 2008
Location: Chatham, Ontario, Canada
Posts: 1,729
|
It makes a huge difference. The beam flexes. The bar stiffens it up. Huge improvement is stability and reduced understeer. A must have!
__________________
TRD Upgrades: 18" Wheels wrapped in 215/35/18 PZero's, Sportivo Shocks/Struts, Lowering Springs, Swaybar, Axle-Back Exhaust, Oil Cap, Rad Cap, Signage. Aftermarket Goodies: Piggies SS, K&N Drop-In, Blitz S/C, DC Header, NST Pulley) Toyota Options/Accessories: Sport Pedal Covers, Sport Shift Knob, Ipod Interface, Summer Mats, Winter Mats, Cruise Control, Auto-Dim Mirror, Echo steelies with winter boots. |
10-03-2015, 02:43 PM | #8 |
since the yaris does not come with one from factory it makes a night and day difference , i have it on my car and its awesome ..im running the TRD and best money spend.
|
|
10-03-2015, 02:52 PM | #9 |
Drives: 2012 Yaris 5dr Hatch Join Date: Oct 2014
Location: Puerto Rico
Posts: 58
|
I know it doesnt come with one. My point is this: usually sway bars attach to 2 moving points, 2 points that move independently and the bar ties them together. In the rear of the yaris all your doing is connecting a solid bar to a solid bar, the stock beam is so much stronger and larger than the sway bar, why would the sway bar make any difference? Its nice like the 2 anchor points (the shock bolts) are flexing independently and somehow that little bar is gonna stop it.
|
10-03-2015, 03:31 PM | #10 | |
Quote:
I would do that before installing honda springs or even doing ur bmw shock swap .Since u have the better shocks add sway bar ...its simple physics you are eliminating unwanted flex in the suspension . |
||
10-03-2015, 03:32 PM | #11 |
Drives: '08 2zr swapped Vios M/T Join Date: Oct 2012
Location: Caledonia Ont.
Posts: 2,938
|
Like Muskoka an Exi stated above, it increases the stiffness to the rear axle which severely reduces under steer. It's money well spent on improving handling and it doesn't change stock height. It was one of the best mods I have made so far
__________________
No one ever wants to give a Yaris the point by... |
10-03-2015, 03:52 PM | #12 | |
Drives: 2009 Yaris Join Date: Jan 2014
Location: Rigaud, Quebec, Can.
Posts: 357
|
Quote:
It's connected to your suspension at both ends and NOT your rear solid beam. Hence theirs your two point connection as it should be. |
|
10-04-2015, 03:29 AM | #13 |
Drives: 2014 Yaris SE Join Date: Apr 2014
Location: NYC
Posts: 1,076
|
Another strong recommendation for the TRD rear sway bar. Well worth it.
|
10-27-2015, 04:05 PM | #14 |
Drives: 2007 Yaris 3dr 5spd Join Date: Aug 2013
Location: Kenosha Wi
Posts: 2
|
Went with the Whiteline unit, huge difference no more road wander at highway speed. Also stiffens rear axle to the point when lifting car from front lift point to service brakes the rear tire on the same side almost lifts off the ground as well.
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
need to change the rear shocks | susucosp | DIY / Maintenance / Service | 4 | 10-04-2013 06:22 PM |
Any rear shocks out there interchangeable with Yaris? | DeathBeard | Wheels, Tires and Suspension Forum sponsored by The Tire Rack | 28 | 07-04-2013 03:58 PM |
New "milder" Setup | Loren | Wheels, Tires and Suspension Forum sponsored by The Tire Rack | 10 | 04-26-2010 10:08 AM |
Hyperco 5.5" single pigtail rear spring test | kngrsll | Wheels, Tires and Suspension Forum sponsored by The Tire Rack | 33 | 06-15-2009 10:11 AM |
Ultra Racing 23mm Rear Stabilizer Bar | Loren | Performance Modifications | 62 | 05-18-2009 07:20 PM |