Hello,

I've been slowly tuning the suspension and handling on my FD for the last year or so. Ive gone through a number of different spring rates, alignment settings and so on.

Recently I decided that the problem with the car was just not enough compression damping. So I swapped the factory 5w oil for motul 7.5w on all the konis.

This has been the biggest improvement so far. I'm running a 300r 500f springs (with a 6 speed and 1jz vvti (so higher front rates, may not apply to rotary cars)

I highly recommend anyone with konis try this! The ride quality is nearly the same, but the handling and control is SIGNIFICANTLY improved! The car finally handles like my worked '03 miata

Motul 7.5w!

 

Did you DIY or have a shop change the oil?

the off the shelf Koni yellows don't seem to be easily user service-able.

 

+1

 

i AM a shop! lol

Seriously though, I work full time at an Audi shop and race crew for GOAPR.

Konis are pretty easy to service (no gas charge)

There is a cap that's a bit hard to remove, you'll need a pin wrench. The factory koni tool is a long shaft that fits into the holes on the shock cap, then uses the threaded portion of the shock shaft to tighten the tool down. If you don't do this you could easily strip out the two holes.

I used a snapon pin wrench ( p/n A176 ) drilled out the holes on the cap slightly to fit my pin wrech pins, then used a piece of roll bar tubing over the shaft and a large washer + nut to push down on the pin wrench. It took a LOT of force to break the cap loose, but my konis were already 5 years old.

Then you carefully drain out the oil into a metered cup... you have to get it all out, so you have to take the shock out of it's inner tube (pretty easy)

My front konis had about 6-7 oz in them, the rears had about 4 oz.

Then you slowly fill the shocks and tube, purging all the air by moving the shock up and down, then just recap them.

I hope that makes sense. This probably voids the warranty on the shock btw.