Picking an EPASS rack for conversion

[race4food]

I'm about to install an EPASS rack in my 08GT prior to my coyote install. I have the option of a 19 or a 20" wheel rack but I run 18's normally. I do open track events and drive the car weekly. Which would put the rack closest to what the Boss 302r/motorsport rack?

 

[Competition Orange]

Interested for sure. Are you planning on running it with the coyote harnesses or the adapter that was just released on FB that works with the 05-09 engine harness?

Why not use an actual 302R rack?

 

[race4food]

I'm running the 11-13 harness built in, what harness are you talking about? And would love to run the 302r rack but its $1200 vs the $150.00 GT rack I picked up.

 

[Competition Orange]

It's on a closed group on FB, but here's a screenshot LOL.

 

[Fabman]

It's on a closed group on FB, but here's a screenshot LOL.

View attachment 59491

what group is this?

 

[Competition Orange]

what group is this?

S197/S550 Coyote Mustang Parts, Faq & For Sale Or Trade

 

[mwjscn]

It's my guess that Ford specifies the wheel diameter for the correct ball joint height. If you plan to use a bumpsteer kit you can likely ignore the original factory wheel diameter suggestion, since you'd be replacing the tie rod ends and recalibrating that yourself. One comment is to make sure you pick up an EPAS rack from either a 2013 or 2014 GT. 2011s and early 2012s had issues with the programming that would create wheel shudder with stiffer front lower control arms bushings (anything replacing the soft hydraulic bushing behind the wheel well). It was related to the programming for the road crown, where the rack would automatically adjust itself to counteract slight slopes in the road surface. If you had the early racks and aggressively moved the steering wheel back and forth (an autocross slalom motion), the steering wheel would start juddering back and forth almost like a bad video game rumble controller. Ford said they fixed the issue with it sometime in 2012, so getting a 2013 or 2014 rack seems to be the safe bet and, like you said, they're easily found in salvage yards. Sorry for the post in an older thread, just wanted to drop that nugget of info.

 

[captdistraction]

The rack sizes are just for the different inner tie rod end limiters/spacers that they install. Choose any, I'd probably pick the 19, but you can change those spacers out as needed.