Lowered Cars Please Read - Bump Stops!!! - Toyota Yaris Forums

Galavoxx · 04-14-2007, 02:15 PM

I have to agree, you either need to cut the bump stops or get some aftermarket items. I was actually going to start another thread on this because I just installed aftermarket bump stops and spacers last weekend but...

As I mentioned earlier in this post, I cut off too much of the bump stop and was bottoming out at least once a week. After installing the aftermarket bump stops, the difference really is night and day. On Sunday, I Got my alignment done with a little negative camber thrown in and I actually went out looking for a way to bottom the suspension. I drove highway 1 south from San Francisco and turned up through Bonny Doon Rd to Felton to Boulder Creek to Skyline and back to SF.

The drive was great but the best part is that, there is no more *THUD* when bottoming the suspension. In one section of my drive there was a good half-hour of tight fast turns. Even in turns with the suspension compressed and riding on the bump stops while hitting a pothole or bump, the car stayed settled. All I can say is, it's amazing how much difference these damn bump stops make!

Anyway, I would recommend these as opposed to cutting.

However, if you must cut, you should leave enough bump stop to do the job it is intended to do. The aftermarket items I got are a hair over 2 inches long including spacers (52mm).

I actually did my front and rear bump stops but you should really only need the fronts. If you do the rear, you'll have to pop the stock hard black rubber stops out with a screwdriver and possibly cut the dust boot.

Here is a link to the site where I bought mine:

http://www.fatcatmotorsports.com/FCMstops.htm

The guys name is Shaikh and he autocrosses Miatas. They are about the same weight and hp as the Yaris. He is planning on making a Yaris page if enough people want these. But for now just tell him Randy sent you.

The Yaris setup:

Front: (2) 47mm strut-style bump stops $24
(4) 9mm delrin spacers, drilled to 21mm $20

Rear: (2) 40mm non-strut (shock) style bump stops $24

extras: $5 each for 3mm slotted spacers, drilled to 16mm, used to tune over/understeer on rear of car. I didn't try this yet but may do so in the future. The car already handles great with maybe a little too much understeer. But this is a front wheel drive car.

Also, I have a spare set of front bump stops with spacers for sale if anyone wants them. I had them installed on the rear of the car for about two days but the inside diameter was too big and they were flopping around so I swapped them out for a smaller I.D. $25 shipped.

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04-14-2007, 02:15 PM	#28
Galavoxx View User's Garage Drives: Yaris Hatch Join Date: Oct 2006 Location: San Francisco Posts: 397	I have to agree, you either need to cut the bump stops or get some aftermarket items. I was actually going to start another thread on this because I just installed aftermarket bump stops and spacers last weekend but... As I mentioned earlier in this post, I cut off too much of the bump stop and was bottoming out at least once a week. After installing the aftermarket bump stops, the difference really is night and day. On Sunday, I Got my alignment done with a little negative camber thrown in and I actually went out looking for a way to bottom the suspension. I drove highway 1 south from San Francisco and turned up through Bonny Doon Rd to Felton to Boulder Creek to Skyline and back to SF. The drive was great but the best part is that, there is no more THUD when bottoming the suspension. In one section of my drive there was a good half-hour of tight fast turns. Even in turns with the suspension compressed and riding on the bump stops while hitting a pothole or bump, the car stayed settled. All I can say is, it's amazing how much difference these damn bump stops make! Anyway, I would recommend these as opposed to cutting. However, if you must cut, you should leave enough bump stop to do the job it is intended to do. The aftermarket items I got are a hair over 2 inches long including spacers (52mm). I actually did my front and rear bump stops but you should really only need the fronts. If you do the rear, you'll have to pop the stock hard black rubber stops out with a screwdriver and possibly cut the dust boot. Here is a link to the site where I bought mine: http://www.fatcatmotorsports.com/FCMstops.htm The guys name is Shaikh and he autocrosses Miatas. They are about the same weight and hp as the Yaris. He is planning on making a Yaris page if enough people want these. But for now just tell him Randy sent you. The Yaris setup: Front: (2) 47mm strut-style bump stops $24 (4) 9mm delrin spacers, drilled to 21mm $20 Rear: (2) 40mm non-strut (shock) style bump stops $24 extras: $5 each for 3mm slotted spacers, drilled to 16mm, used to tune over/understeer on rear of car. I didn't try this yet but may do so in the future. The car already handles great with maybe a little too much understeer. But this is a front wheel drive car. Also, I have a spare set of front bump stops with spacers for sale if anyone wants them. I had them installed on the rear of the car for about two days but the inside diameter was too big and they were flopping around so I swapped them out for a smaller I.D. $25 shipped.