Engine braking? Yey? Nay? Thoughts?

Discussion in 'Wheels, Tires, Suspension, and Brakes' started by k.trazy, Sep 19, 2012.

  1. k.trazy

    k.trazy New Member

    I'm yet to master engine braking in my 3, but was wondering for all of you other stickshift drivers if you do engine brake, if so then in what situation and how? If not then explain?
  2. Big Nate

    Big Nate Chaos Engineer

    What is cheaper to replace a clutch or brakes?

    Engine braking should (IMHO) never be used for Daily Driving. It has a place when going through the mountains or other unique situations though.
  3. dmention7

    dmention7 Hater

    If you are good at rev matching on downshifts, the clutch wear will honestly be negligible compared to other driving duties. As to engine wear, as long as you're not revving the piss out of the motor, a zero-load mid-rpm condition is probably easier on the engine parts than idling since the oil pump is producing more flow and the only load on the bearings is the compression stroke of the pistons, but no power stroke.

    All that said, I agree with Nate it's not really necessary for daily driving. Though if you have reason to believe a light is going to be changing soon, you're better off coasting to a stop in 2nd and continuing to roll as the light turns green, than charging the light, coming to a complete stop, and starting again.
  4. Picklz

    Picklz SUDO Make me a SAMCH

    As Jay said clutch wear will depend on how good you are at rev matching, I tend to do it fairly frequently as it's entertaining to me. Also if you plan to spend any time on a road course you need to be good at heal/toe so it's good practice for that. For a Daily driver only and strictly speaking in financial terms yes it's better to us brakes only and not be down-shifting, as especially while you're learning there likely will be additional wear on the car, but us car guys don't usually make decisions solely based on financial reasons lol.
  5. escort1991

    escort1991 New Member

    A lot of times, I will engine break on an off ramp, but I'll be coasting before then, matching the rpm and speed. A lot has to do with learning when and where to shift, whether downshifting or upshifting. Each car is different. It took me a while from my Focus to my 3 to learn where the shift points where in the 3 compared to the Focus that I put 150,000miles on.
  6. ohsixspeedsix

    ohsixspeedsix Owl Exterminator!!

    I engine break a lot. I have gotton pretty good as rev matching and as picklz said, its nice to already be in gear when the light changes. I've done it for two years in the ms6. I've replaced the pads once all around, and they were on there we'll before I bought it. My clutch is just fine, and honestly, I would rather have to put a good aftermarket clutch in it after a long as time vs new pads and machining rotors every year.
  7. concealer404

    concealer404 Skanky Escorts LLC

    Just rev matching doesn't do much of anything for clutch wear...

    Unless you're all double clutching?
  8. dmention7

    dmention7 Hater

    I think you mean synchros....
  9. k.trazy

    k.trazy New Member

    I'm rubbish when it comes to rev matching.. I'll just pop it into neutral and coast to slow down and actually utilize the braking system, to, I don't know.. brake? Hah. Thanks for the input, guys.
  10. concealer404

    concealer404 Skanky Escorts LLC

    No i mean clutch, since that was brought up earlier in the thread. :squinty:
  11. dmention7

    dmention7 Hater

    Rev matching uses power from the engine to bring the engine up to match the speed of the wheels instead of using friction from the clutch to accomplish the same. If done perfectly, the clutch disc and pressure plate will both be moving the same speed when the clutch is disengaged.

    That still leaves the synchros doing the work of bringing the transmission guts up to the same speed as the wheels--that work is much reduced by double-clutching, hence my suggestion that you were talking about synchros instead of the clutch ;)
  12. 007CobaltLS

    007CobaltLS Member

    Still have so much to learn when it comes to driving a stick...stupid work truck. If I had a car with a stick this might be easier to comprehend (not the engine braking...the rev matching and double clutching and other stuff).

    On topic....my work truck (well my old one...new on is an auto) I would engine brake all the time. A lot easier to do so in a truck when you need to slow down for hills (especially near Stillwater) then to try and let the brakes do all the work. Also in heavy traffic it's just easier sometimes.
  13. escort1991

    escort1991 New Member

    If driving a newer car, you don't have to worry about double clutching.

    After this thread was started, I started realizing how much I downshift when driving. RPMs are usually below 4k.

    In my Focus, I learned where the RPMs needed to be to shift without the clutch and did it often.
  14. DTruongMazda

    DTruongMazda New Member

    I engine break all the time in my 08 6.

    If you rev match it well, the shifter should go in smooooooooooooooth as butter! If you rev match it well, there should be no notice at all in the 'herky jerky' motion when driving. If the clutch feels heavy when engine breaking... then that means more practice! lol.

    80K miles on my 6, and my original break pads are at 40% on the front, and 80% on the rear... clutch is still good as new. :)
  15. concealer404

    concealer404 Skanky Escorts LLC

    Are you 100% positive you don't have that backwards? :D

    The clutch couples engine speed and gear speed. (input shaft)
  16. dmention7

    dmention7 Hater

    Yep, I am 100% positive. The clutch couples engine speed and gear speed. If you downshift without double-clutching the synchro will bring the input shaft of the transmission up to the wheel speed. If you then disengage the clutch without rev matching, the clutch then brings the engine speed up to match the transmission input shaft (wheels) If you rev match, the engine speed and input shaft are matched in speed and no clutch friction is needed.

    Unless you're just trolling, in which case FUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
  17. concealer404

    concealer404 Skanky Escorts LLC

    RoadRaceAutoX has lied to me. :(

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