We were excited to learn that the Honda Accord's new 2.0-liter turbo four-cylinder is actually based on the motor in the raucous Civic Type R, but they're not identical. Our colleagues at Honda's powertrain chief, Terunobu Kunikane, to get the low-down on all the differences between these two 2.0-liters.
There's actually a lot of common components in these engines. Car and Driver reports that they share the same pistons, exhaust manifold, intercooler, electric wastegates, and VTEC system. They even run the same 9.8:1 compression ratio too.
The big difference, per Kunikane, is in the turbochargers. The Accord's turbo is much smaller than the Type R's and spools up quicker, thus improving low-end torque and throttle response. It takes longer for the Type R's turbo to start working, but when it does, it provides even more power and torque at the top end.
The Accord's 273 lb-ft of peak torque is available between 1500 and 4000 rpm, while the Type R's 295 lb-ft peak arrives at 2500 rpm and tapers off after 4000. Both engines make peak power at 6500 rpm, with the Accord generating 252 hp and the Type R making 306 hp.
At 20.8 psi, the Accord runs lower boost pressure than the Type R's 23.2 psi, which means you can use regular-grade fuel without the risk of knock. By contrast, the Type R requires premium fuel.
Kunikane also told Car and Driver the Civic Type R gets its own, higher-flow fuel injectors and a more aggressive software tune than the Accord, with a slightly higher, 7000-rpm redline. The Accord also gets a balance shaft designed to reduce vibrations.
Both cars share a six-speed manual, but you can also order your Accord 2.0 with a new, 10-speed automatic. The Type R is, of course, manual only.
We should be sampling a 2.0-liter Accord very soon to see how it compares with the Type R, and if it can fill the 3.5-liter V6-sized hole in our hearts. It seems like Honda is employing some clever engineering to get the most out of this little four-cylinder. But what did you expect? This is Honda, after all.