Can someone please tell me what tells the engine where to stop at its highest rpm, with a CVT transmission?

Is it the ECU, the TCU, some combination of the two or something else. My car currently peaks at 6600rpm. I am just trying to gain some understanding with this.

I'm posting this here rather than the 3rd gen forum so that anyone can reply, even people with older modeled CVT Fits from overseas (Or any other CVT make/model vehicle). Thanks in advance!

 

If you mean the rev limiter, it's in the PCM (engine control side of the unit).

 

Yes, that is what I mean. Thank you! The rev limit in Ktuner is set for 7000rpm but the engine didn't seem to rev up to that point during testing. So I was curious. It only goes up to 6600rpm. Only went to 6550rpm before.

 

I was reading on a different forum about the 2016 Civic 1.5 turbo with an Injen intake and read this line, thought it relevant to your post:

Same reason why you never hit the factory redline of 6500 RPM. I confirmed this directly with Injen. CVTs are designed to hold the engine at the RPM where it will produce maximum power. It seems that this car may sense the correct RPM based on maximum torque output. This is a question for Hondata or a Honda engineer though, as it deals with the inner-workings of the ECU and CVT.

 

Thank you for this post. I'll troll over to the 10thgencivic forum if that is where you read this at. Good info!

BTW: Been reading about that Injen intake here --> http://www.civicx.com/threads/injen-...ns.1976/page-9
Wow is all I can say! That's why I don't argue about intakes anymore (or any modifications). Just do the modification, get some 1/4 mile runs under your belt and call it a day. Had to grab some popcorn for that whole thread with all the arguments going on.

 

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