I was just curious if it would be beneficial in anyway to rev match (down shifting) with the stock clutch? Anyone do this? Does it save the clutch on wear?

 

Not really it just makes the downshifting transitions smoother.

 

It does put less stress onto your tranny and the transition is MUCH smoother. Im not too sure on clutch life though.

 

It is definately benefical for the tranny/sychros. I do it as often as I can or even heel toe if I have to brake. But if you do it wrong, it can actually harm the clutch (if you rev too high for the next lower gear).

A blink of the gas before the next gear and you're good to down shift.

 

Thanks guys,

anyone know if it has an affect on the clutch though?

 

I don't think it would affect it unless you over rev into the next lower gear because the clutch will have to "absorb" the excess torque.

 

Yeah, that's what I've been reading today; in some articles. Thanks again!

 

In order to put less wear on the sychros, you need to double-clutch. A simple downshifting and rev matching does not reduce wear on the synchros.

 

Why not? It's seems like they would have to do less work. Either way it's a smoother ride rev matching.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by WhiteOnRice &raquo;</TD></TR><TR><TD CLASS="quote">Why not? It's seems like they would have to do less work. Either way it's a smoother ride rev matching.</TD></TR></TABLE>

A long time ago, before the days of synchros, you needed to double clutch in order to shift gears. A synchro allows you to throw the gear lever into the next gear (or downshift gears) without having to double clutch. So if you are not double clutching, you're making the sychros work, and working the synchros means you're wearing it out.

More info here:

http://auto.howstuffworks.com/transmission3.htm

 

I understand that much but we all know how touchy k-series synchros are. Won't this help them? Like I said,
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by WhiteOnRice &raquo;</TD></TR><TR><TD CLASS="quote">It's seems like they would have to do less work. </TD></TR></TABLE>

 

Nope. None at all. Blipping the throttle for rev matching only matches the speed of the flywheel to the pressure plate, thus putting less wear on the clutch friction material. Blipping the throttle doesn't change the speed of anything inside the transmission since you're blipping the throttle when the clutch pedal is depressed....when your clutch pedal is depressed, the engine (that you're blipping) is totally disconnected from your transmission thus you're not speeding up anything in the transmission with the throttle blipping.

 

At least it's a smoother ride