[Smartie]

Motortrend lays this one down!!

The base engine is a 2.0-liter, naturally aspirated inline-four with two camshafts, producing 158 hp at 6,500 rpm and 138 lb-ft of torque at 4,200 rpm. A relative of the Euro-market Civic Type-R's 2.0-liter turbocharged four-cylinder, the square (86mm bore by 85.9mm stroke), port-injected 2.0-liter has that VTEC, of course. And the six-speed manual transmission it's hooked up to is new too.

http://www.motortrend.com/features/mt_hot_list/2016-honda-civic-10-new-tech-niblets/

not sure HOW related...anyone know for sure??

 

[RobbJK88]

Probably about as related as i am to my aunt's cat...

All joking aside... im sure it shares some simpler components between the two. Anywhere production costs can be cut down on....

 

[HondaGeek]

Probably about as related as i am to my aunt's cat...

All joking aside... im sure it shares some simpler components between the two. Anywhere production costs can be cut down on....

Aunt's cat?

That pretty funny

 

[Design]

Probably just the block itself. Expect just about everything else to be different for both the Si and Type R.

A good comparison is what Mazda did to the MS3. Same 2.3 block found on the base 3 and Ford Duratec motors. But almost everything else (and I mean everything) was different. Heck, even the AC compressor had a revised CHRA to handle the increased torque from the motor.