Do I need a tune with a clutch
 

Just had a quick question I can't find the answer to.i want to get an exhaust and tune. But if I get a clutch later do I need to get a retune?

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Clutch no. You need intake and exhaust mods to need a tune.

A tune is used to adjust air to fuel ratios to optimum based on intake and exhaust geometry.
Mechanical, i.e. drivetrain or suspension, mods do not directly affect AFR.


Kirk B.

The Rules-Of-Thumb are:
Intake mods only - no tune required; the ECM will compensate.
Exhaust mods only - no tune required; the ECM will compensate.
Intake + exhaust mods - tune required.

Awesome thanks guys I knew it would've been a quick thread

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Don't forget guys, if OP intends to do a lightweight flywheel along with his clutch job it might help to tune the car as the extra chatter from the flywheel will sometimes cause issues with the knock sensors which a tune can adjust for... forget who it was but we've already had a member with that exact issue

This is a really good catch.

I'm sorry maybe I should be more specific, I haven't decided on what exact clutch I want, but I know I want to do clutch, flywheel, zspeed cmak, and also the rjm clutch pedal

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They can also effect idle quality and deceleration dips sometimes. A buddy in the past put a very light racing one on his car (not a z) and then it would dip past desired idle and almost stall (or did stall a couple time I don’t remember). So things like the IAC opening (would be throttle bodies today) need to be a little more aggressive.