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"Amazing on track and still comfortable on the street" - FCM Elite Scion FR-S Stage 2 build
#FT86 #ScionFRS #SubaruBRZ
In this video I show a comparison between the original FR-S rear damper, the H&R Street Performance rear (as received), and my FCM Elite Stage 2 optimized damper for our customer. My goal was to give him good control for track without harshness on the street like the OE or H&R suspensions.
Want to experience Ride Harmony, too? Get in touch through our Elite Contact form:
http://www.fatcatmotorsports.com/contact_elite.htm
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Update: my customer's initial feedback on his FCM Elite Stage 2 build was very positive! I want to do a longer chat / interview with him as well.
Testimonial (text screenshot): http://www.fatcatmotorsports.com/img/portfolio/fullsize/Ed_Scion_testimonial.png
"I can write more of a proper testimonial later but it was exactly what I was looking for. It was amazing on track and still comfortable on the street.'
Original ride frequencies on the H&R Street Performance coil-over with provided springs were 1.9 Hz front, 1.7 Hz rear - NOT Flat Ride (pitching going on!). I make comments about the damping in the video but suffice it to say it would have been over-pressurized and jacking down.
For our Elite improvements and his GT (dual purpose street and track) goals, we kept the original H&R front spring (~270 lb/in per my calcs) and I picked a stiffer Eibach 60mm ID rear spring (457 lb/in) to give frequencies of 1.9 Hz front, 2.1 Hz rear for 10% rear frequency bias. Also of note, I had to make a custom Delrin upper rear spring adapter to mate a new Eibach 3 inch ID helper spring to the upper mount. Some notes on that:
For rear, used Eibach 2.43 inch ID (61.7mm), 7.87 in long, 8.2kg/mm (457 lb/in). Made Delrin adapters using 1" thick, 5" ID raw material from McMaster-Carr: https://www.mcmaster.com/9986K52 and a pair of new OE Scion FR-S rear shock mounts to get the fit just right (no rattles!).
Above the new main spring, I used an Eibach 3inch ID helper, 4.84 inch long, Abel @ Eibach (5/1/19) the OD is 3.5 inch.
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Category | Education |
Sensitivity | Normal - Content that is suitable for ages 16 and over |
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