DavidNJ

At least it will have low emissions.

freq

With an aftermarket tune and likely a "For Off Road Use Only" purpose, it might not.

TsukubaCody

Car enthusiasts, the only group that is offended by something being both powerful, efficient & cleanish burning.

Car community is so toxic, ugh.

derpins2k

It's a boring motor to be fair when you compare it to the F20/F22. It's powerful, but the noise is terrible and it just feels like it's lacking personality.

DavidNJ

The K-series, to which the F20/F22 are really siblings, has been the high point of performance engines. It combined roller cams with big valves and large, free-flowing ports. Add VTEC on both intake and exhaust.

The K20C1 has the exhaust manifold built into the head, water-cooled for emissions. VTEC only on the exhaust...again for emissions. And the intake port flow is horrendous.

The Evo and Ford Coyote were the closest to the best of my knowledge. The K-series was better per cylinder and per unit of displacement.

The popular VR and VQ NIssans and Toyota 2JZ-GTE have flat tappet camshafts. The 2JZ also has mediocre port flow and limited bore and stroke size.

The K20C1 may be a grandchild...but is not a performance engine and I can't imagine why anyone would spend the money to adapt one for the S2000.

Chibo

You aren't comparing apples to apples. Consider that the K20C1 was designed for FI application, consider how a flow bench works, then consider what this means for a NA vs FI comparison.

DavidNJ

The K20C1 was designer to be a FI emission engine. The 2.3L in the Mustang is similar.

The intake port is a joke compared to the high-performance K-series and F-series heads.

The big difference is the K20C1 was designed like the other 2L or so turbo engines that are now the norm in full-size sedans and pony cars. This isn't 10-years ago when those power levels in the STI and EVO were something special. What is missing is the ability to turn it into a 600hp, 800hp, or 1200hp engine.

DavidNJ

I thought readers of this thread might find these links interesting.

First, 4Piston's page on their K20C1 head (4P K20C1 Type R CNC Race Cylinder Head | 4 Piston Racing) and their K20C1 long block (4P 2.0L K20C1 Race Engine | 4 Piston Racing). Their text describes what they changed and why. For example: "The OEM connecting rods are strained with increased torque loads and bend easily with the power that is able to be produced by the stock turbo and fuel system. Our engine replaces those with a forged Saenz I-beam connecting rod that is 100 grams lighter than stock, yet can handle more than double the torque and horsepower. The OEM piston is replaced with a heavy duty forged JE piston with tool steel wrist pin. It has a thicker top, thicker pin boss area, and much stronger ring lands, which have been prone to breakage in road race engines. Compression is left close to OEM for easy tuning on pump gas." They are also working on a 2.3L version.

Then this is Full-Races turbo kit for the K20C1: https://www.full-race.com/store/borg...ate-turbo-kit/ It is using BW EFR small frame turbos with the OEM electronic wastegate controller.

TsukubaCody

Y'all are missing the whole point. From the looks of it evasive is doing a take on a modernized/Type R-ish S2000.

This engine makes sense & the aero stuff they've teased also seems in keeping with that.

If I trust any shops to do the S2000 justice, it is Evasive.

Bama Dave