This is Kevin Boehm’s 2017 Honda Civic Si… with a Type R CTR swap. Yes I know what you’re thinking. Why in the HELL would you buy a new Civic and immediately swap it with a different engine out of the same chassis? Why not just buy the Type R from the beginning? I had the same thought initially. But for Kevin, it’s not just about the car. It’s about the passion! In the Honda world, motor swaps are at the core of the game. And Kevin found his situation as the perfect opportunity to give Honda’s new technology a test.
Honda performance Development
He acquired the CTR engine from Honda Performance Development, as it was actually a leftover from their Formula 3 open wheel race car program! He then purchased the bare white-body chassis from HPD, and convinced them to let him part out two different partial cars and swap over to his white-body.
As far as the swap goes, it was actually easier than he thought! Honda designed the 10th generation Civic with a lot of commonality between the different cars. In doing so, the OEM Type R engine-mounts allowed the CTR to be mounted directly up to the Si chassis! Kevin is still running the Si suspension, however, only causing an issue with his axles due to the fact they needed to be shorter! To combat this, he took a few measurements, and sent them off to Driveshaft Shop for some custom axles that use the Type R inboard joint and the Si outboard joint.
The biggest issue Kevin ran into with the swap, was getting all the electronics to communicate properly. Because of this, he decided to run a stand-alone ECU, versus the factory ECU from the CTR.
Overall, the new Civic platform is DEFINITELY a force to be reckoned – with or withOUT some fancy swap left over from an open wheel race car. There’s no denying that Honda’s back in this thing! Just ask any Ford ST owner & watch him start to squirm a little. An Si might not be the quickest out of the box, but it’s set up for endurance. The 10th generation Si/CTR has less understeer than any other factory Civic platform, making it that much easier to rail around corners and give it the sauce. It’s proving itself to be a real competitive contender amongst the other performance 4-cylinders out there. And I’m personally looking forward to seeing how far these Honda boys keep pushing this thing.
2017 Civic Si Chassis
Full roll cage
Chassis powdercoated grey
Heated windshield to delete HVAC
Wedsport TC105n 17x8in wheels with 38mm offset
Custom front splitter
Custom carbon fiber rear wing
Seibon TS Type carbon fiber hood
2017 FK8 Type R CTR Crate Engine from HPD
FK8 transmission with Cusco RS Type adjustable LSD
Stand-alone GEMS GDi80 engine ECU
Race Technology data acquisition
Gutted wiring harness
Custom 36mm turbo inlet restrictor
Custom Acuity Instruments cold air intake
Acuity Instrument shifter bushings
Acuity Instruments short throw shifter
Custom RV6 Performance radiator
Custom RV6 Performance 3in stainless turbo-back exhaust
RV6 Performance suspension sphericals
RV6 Performance 3-way adjustable rear sway bar
HPD camber/caster plates
Bilstein double adjustable dampers front/rear
2.5in racing springs front/rear
SPC rear camber arms
Driveshaft Shop custom axles
Brembo endurance racing brake calipers with 332x32mm 2-piece rotors from StopTech
Carbotech brake pads front/rear
Goodridge fuel lines, brake lines, and clutch lines
Recaro racing seat & 6-point harness
OMP deep dish steering wheel
Custom 3D printed steering wheel box
Car weighs 2350lbs – making almost 400whp without the restrictor