Complete iron cast…? But the engine is aluminium?
[quote=“casey3353”]I’d like some help trying to build the Honda F20c. I’m not sure where I"m going wrong
Going from the wikipedia, we have
Displacement: 1,997 cc (121.9 cu in)
Compression: 11.7:1
Bore: 87 mm (3.4 in)
Stroke: 84 mm (3.3 in)
Rod Length: 153 mm
Rod/stroke ratio: 1.82
Power:
JDM 250 PS (183.88 kW) @ 8,300rpm & 22.2kgm (217.71 Nm) @ 7,500 rpm
USDM 240 HP @ 8,300 rpm; 153 ft lb, 207 Nm @ 7,500 rpm
Redline: 9000 rpm
VTEC: 6100 rpm
From this, I have the following settings:
Current Year 1999
Inline 4, Aluminium, 87mmx84mm, Forged Crank, Forged H-Beam, Forged Pistons
DOHC, 4valves, Al, 11.7:1, 61 on the lower cam, no VVT, VVL, and 100 on the upper cam
Multi EFI, Single TB, Performance Intake, Premium Unleaded, 12.3:1, 83, 9000
Long Headers, No Valve, 3", HF3-way, Reverse, Reverse
I’m only making 235hp.
Some quick observations I have are:
9000rpm Bottom end part is reducing lifespan. Is this right? No combination passes this in 1999
Fuel System. I haven’t been able to get any engine to have a fuel mixture richer than 12.3 with it saying I’m running rich. Is there any factors which can change this?
The F20c header exhaust goes to a 2.5" exhaust, which drops power down to 195hp in Automation
Just some feedback to maybe fix some calculations. If I’ve made any mistake in my setup that anyone sees, can you let me know[/quote]
I came up with two engines which are pretty close to the Wikipedia specs you listed. HP is occuring 300RPM high while TQ is coming 600RPM low and a few Ft-Lbs high. The attached engine is the cheaper of the two, but at a huge sacrifice in reliability at a mere 42.6. By making the changes below you can achieve a much higher reliability but with a sacrifice of a huge increase in cost/production units. It should also be pointed out the efficiency of these engines is garbage, or at least mine is. 
F20CRev2.lua (51.8 KB)
This version uses high end components in the form of Titanium rods and Lightweight Forged pistons:
This version uses lower end components in the form of I-Beam Steel rods Forged pistons:
These specs are the same on both engines:
Hopefully you’ll find this helpful? 
Whelp, here’s my attempt, I had to play quite a bit with the “techpool” though, tried to give it that real V-tec “kick” from the dyno chart I found
[size=75]https://fbcdn-sphotos-d-a.akamaihd.net/hphotos-ak-snc7/298474_10150341120854190_2001978800_n.jpg[/size]
anyways, here’s the result:
runs 11.7:1 compression like the real thing, torque might be a bit off, and it was tough to get that sudden torque bump.