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Discussion Starter · #1 ·
We just released a very detailed review of our new Rallye Red 2017 Civic Si sedan shop car. Stu goes into all the details on what makes this Si different than the standard EXT models. If you're in the market for a 10th Gen Civic or just want to know everything about this new Civic Si, then this review is for you!

 

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Great video!!!

He mentioned that the Si might have different cams? I heard that even the pistons in the Si are different that on the EX model. I could not find the complete engine spec for the Si online. Anyone had luck finding the new Si engine specs?
 

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Discussion Starter · #5 ·
Great video!!!

He mentioned that the Si might have different cams? I heard that even the pistons in the Si are different that on the EX model. I could not find the complete engine spec for the Si online. Anyone had luck finding the new Si engine specs?
The Si does have different camshafts, but we're not yet sure how exactly they are different. It could be that the Si just has a revised oil pump lobe on the intake cam. Basically, we're not 100% sure the Si camshaft gives better performance. You're correct that quite a few other aspects of the Si's engine have been strengthen over the EXT models. We don't have all the detailed specs on those individual parts though.
 
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