jinn

2.5 L is doable on the on the F block' 224 mm deck height, but I think Rod Stroke Ratio will suffer more compare to K24 231 mm deck height.

Hypothetically w/ a K20 Cylinder Head mounting design, I think custom rods & pistons are required because "let's say" if this mounting design is plate/adaptor between the F Series Block & K20 Cylinder Head; the compression will suffer w/ stock F Series Pistons.

jinn

Would F20 Rods be too short for the K24 deck height decreasing from 99 mm to 90.7 mm Stroke?
The F20 Rods are 1 mm longer > K24 Rods

Stock Deck Height
K20: 212 mm
K24: 231.5 mm
F20C: 224 mm

Rod Length
K24: 152 mm
F20C: 153 mm
F22C: 149.65 mm

Mrsideways

The idea was brought up by real street. Sounded to me like they had done it.

S2kAndTheAnt

Thanks for BLOWING MY MIND!

Mike RT4

If you scroll to 12:22 in the video, you will see that the 2016 iteration of the J's Racing S2000 "F20C" is 2,670cc ! I wonder what they did to achieve that.....????

jinn

Maybe J's RACING double stacked BALLADE's Deck Plate, then asked TODA to produce longer Rods lol

Chibo

7800 rev limit, interesting.

Seemed like they limped the M3 around. Then again, they are running 900/1400lb springs, which is kinda insane. I don't know why Japan tuners seem to go ****ing insane spring rate wise compared to the rest of the world. 700/1000lb is more normal on the E90 M3.

flanders

Yeah it almost makes you wonder if they use a different kind of spring rate unit

Chibo

I converted the rates before posting

Slowcrash_101

the motion ratios on e92 basically means the wheel rate is 2.5x less than the spring rate. Wereas our motion ratio means our wheel rate is much closer to the spring rate.