IL Motorsport Control Arm Bushes Review
 

Hi All,

I thought I would add a short review here on the performance of the IL Motorsport front and rear upper and lower control arm bushes.

I know that many people have a tendency to ditch the factory control arm rubber bushes in favour of harder polyurethane style bushes for better response. However polyurethane deteriorates fast, it gets chalky and it squeaks if it gets dry. They are a pain in the butt from my perspective and I have used them in many cars over the years. I always go with rubber for control arm bushes for this reason.

So I was delighted to get a set of IL Motorsport harder (by 40%) rubber control arm bushes into my hands. These are a great product from what I saw. They look very well made and come marked clearly in their respective boxes so you don't get them mixed up.

After fitting these bushes I noticed that the car was significantly more planted. There was far far less body roll and the turn in and steering response was very sharp. It was more dramatic than I had expected. My car is still running the original clapped out shock and spring setup (new setup on order) but even so the change was fantastic. Thumbs up to IL motorsport for making these...I also have the upgraded diff bushes to use as well..I will fit those when the Monster Miata 7.5 diff and carrier go in later this year. I am sorting out the interior, exterior, suspension and brakes first before the drivetrain gets dropped for the v8.

I can thoroughly recommend this mod to anyone...go the rubber and not the poly...trust me pushing out poly bushes that squeak at every bump after you fitted them probably a 1-2 years before is NOT a fun way to spend the weekend :)

been there done that.. ;)

Cheers

I agree. I did not want poly for all the reasons you mentioned. I bought rubber bushings from FM (don't remember the brand). haven't really driven the car yet, so I can't say anything about performance.

Since I have a track car, I am considering Delrin offset bushings to allow for more tire clearance and a stiffer suspension

I am also considering spherical bearings, but I'm not sure if that's feasible without significant mods or using expensive tubular arms.

I installed the Megan racing hard rubber bushes last year. My experience is the same. Love them. The Megan's are about $100.00 cheaper.