San Marino Blue M4CS - track build

[b_w.]

What are you running for the rear diffuser?

[HELROTM3]

Well done!

[funk323]

The track day went well, while I didn't meet my goal, I had A LOT of fun with everyone that had come out.

[funk323]

Originally Posted by b_w.

What are you running for the rear diffuser?

Not 100% sure the brand, Bimmerworld sourced it for me, they use it on their GTMore car.

[funk323]

I picked up new arms from Track/S, they use the OE GT4 ends. I will replace all the SPL arms.

[medphysdave]

Originally Posted by funk323

I picked up new arms from Track/S, they use the OE GT4 ends. I will replace all the SPL arms.

They look great. I'm planning order a rear set when I get my coilovers. Thanks for posting the pics!

[b_w.]

Originally Posted by funk323

I picked up new arms from Track/S, they use the OE GT4 ends. I will replace all the SPL arms.

Have you had a problem with the spl arms? Or are these different specs?

[funk323]

Originally Posted by b_w.

Have you had a problem with the spl arms? Or are these different specs?

I just wasn't happy with the parts, knowing a friend that had his break and reading about others, I just wanted to move to the other option.

[funk323]

Another track day down. Still Lacking on commitment but I am sure it will come with seat time.

[ashmostro]

How do you feel about the Tractives? I have a set of the tourings from my M2cs that I have yet to install on my M4cs, and I'm on the fence. They didn't pair well with the M2, but I'm thinking it could have been that the ride frequencies were out of tune for the shorter wheelbase of the M2.

I appreciate your help!

[funk323]

Originally Posted by ashmostro

How do you feel about the Tractives? I have a set of the tourings from my M2cs that I have yet to install on my M4cs, and I'm on the fence. They didn't pair well with the M2, but I'm thinking it could have been that the ride frequencies were out of tune for the shorter wheelbase of the M2.

I appreciate your help!

I like them a lot, they can be comfortable enough to drive to and from the track and around town. But also run very well on track.

[ashmostro]

Ty!

[818M3]

Nice to see a CS in it's natural habitat.

[funk323]

I had one more track day before starting the maintenance phase to this season.

Maintenance being, removing the calipers to be rebuilt by Essex. Also want to install the KMP diff kit that has been sitting for over a year lol. Also just the usual nut and bolt checks and fluid replacement.

I am due for another Achilles surgery, so I will be out of commission for a while.

I was out with OTA at Shannonville (SMP), I was able to PB and work on my driver skill. Everyone at the event was nice and willing to share knowledge. some of the pics make me think I need some sway bars, or maybe rethink the spring rates.