Since I will be installing Delrin bushings on my FD, it seems a good idea to replace the junky rubber bump stops that are currently installed.

Shocks are Koni yellows, 550/450 Eibach springs on a GC coilover kit.

GC now has some bumpstops. They are so inexpensive I just went ahead and ordered a set of the 'stiff linear shock' bumps.

http://www.ground-control-store.com/...tion.php/II=10

Some others that I have been considering:
http://fatcatmotorsports.com/FCMstops_comp.htm

Though originally designed for a Miata, these are a universal model. What I like about these is that the rate information is published, and they will linearize them if you like.

They also cost quite a bit more.

These may be a better deal than the GC's however as they are longer, and riding the bump stops may be less harsh than the shorter GC's. Just going by appearance on the GC site, as the length of the stop is not published there.


Experiences with either?

No point in asking for opinions, those are sure to follow.

 

If you expect to hit the bumpstops on a regular basis, then why not go for longer and/or stiffer springs, assuming you still have usable stroke on the damper? If you don't, then it seems to me that you can just buy the GC set, as you should not expect to hit the stops in normal use.

 

Depends on how hard I drive I guess.

This is a track/autox car, with 550 front and 450 rear springs.

This spring rate is about as high as I can go with Koni Yellows.

I'll just try out the GC stops.