Is anyone running 19" track wheels?

[jp129]

Emira PBR kit

The factory parking brake actuator on the Lotus Emira is large and protrudes into the wheel well, which limits your ability to run smaller-diameter wheels. Our relocation kit solves this by rotating the bulky actuator out of the way, clearing valuable space and opening up new wheel and tire...

www.darkworks-design.com

This inexpensive fix is what’s needed for the parking brake to accommodate 18” wheels

Yes, they work brilliantly. I currently have these installed and it works great!

 

[dbjames]

Yes, they work brilliantly. I currently have these installed and it works great!

Do you have 18 or 19? Which wheels have you gone for

 

[kitkat]

I heard the guy who designed those is serious management material.

 

[kitkat]

Keep in mind that some 18" wheels that are cast and not optimized for big brake clearance may still not fit with 18" wheels. Pretty much all the forged ones will -- and anything cast and optimized for track use like apex.

 

[jp129]

Do you have 18 or 19? Which wheels have you gone for

I have some 18's coming. Working with BSPK for something custom to ensure clearance and fitment. The front caliper setup is going to be real tight, so I suggest working with your wheel mfg to spec out the barrel.

 

[jp129]

 

[OppositeLock]

What wheel/tire size combo are you going to run with 18" wheels?

 

[jp129]

What wheel/tire size combo are you going to run with 18" wheels?

18x9.5" & 18x11"

This size should give me some flexibility on tires I wanted to run:
255/35-275/35
295/30 or 315/30 to pair

 

[OppositeLock]

There are some nice tires available in those sizes! I've ordered the parking actuator adapters and I'll likely be buying 18"'s soon!

 

[jp129]

There are some nice tires available in those sizes! I've ordered the parking actuator adapters and I'll likely be buying 18"'s soon!

Exactly! It was my main driver to making the 18's work. You can go for super grip within reasonable prices or cut significant costs on enduro 200's (Conti ECF), with my NASA discount, I can save close to $350 per set of tires. That'll pay of for the enablement parts quickly for me.

 

[OppositeLock]

Have you tested those wide wheels for clearance issues yet?

 

[jp129]

Have you tested those wide wheels for clearance issues yet?

No, they're being mfg so I didn't have a physical model to test.

I simulated the clearances and based on the width & offset I chose, I believe I will lose ~5.6-6mm of steering lock (inner barrel will rub the UCA 6mm before full lock is reached). Noting human measurement variances as I don't have a jig to measure precisely.

Front Brake line holder that's bolted on the UCA will also need to be relocated as that's showing to interfere with the inner barrel.

Valve ridge area is going to be tight with the brake caliper, but John @BSPK was able to make it happen.

As these will strictly be my track wheels, I was willing to accept these conditions to acheive the objective.

I would advise that anyone looking to go down this path, make sure to spec out your wheel barrel dimensions for confirmation. Assuming any 18" wheel will fit likely will cause potential headaches, YMMV!