rev matching quick Q

[markoJEK1]

Is this bad for your drivetrain ? thats all Im after pretty much, is it better to brake, down shift and go in reguards to the amount of pressure / wear and tear/ froce put upon drivetrain, or is rev matching more beneficial, thanks

[aaronng]

Rev matching is always better than none at all. Even if you brake, downshift and go, don't you still have to rev match so that it is smooth when you release the clutch?

[rayb3na_]

i reckon it works out better? u dont get that jerky motion? so doesnt really feel like the cars suffering although.. some other drivers on the road dont exactly understand what that is and they just think im being a disturbance? =[

[markoJEK1]

Yeah of coarse aaron, my question is mainly asking if it is better or the same as the normal brake , downshift and relase clutch. Would like to know if it wears out anything quicker pretty much, if not then theres my answer

[DLO01]

Rev matching will put the least strain on the driveline. Your 'matching' the rpms of the engine with the rest of the driveline via the clutch.

[aaronng]

Yeah of coarse aaron, my question is mainly asking if it is better or the same as the normal brake , downshift and relase clutch. Would like to know if it wears out anything quicker pretty much, if not then theres my answer

Rev matching is always good. The only other method to downshift without rev matching and reducing driveline shock is to slowly release the clutch and let it do the work to speed up the engine. Of course, you get accelerated clutch wear..... Rev matching is always good. But when I am slowing down to stop at the lights, I just downshift from 6-5-4 and 4th gear is enough to get me down to 20km/h where I can just clutch in and brake to a stop. I don't do the 6-5-4-3-2-1 that some people like to do.... Wears the synchros out too much in my opinion.

[teh_mechanic]

rev matching reduces wear in the gearbox.if you do it right,you are essentially getting the two gears that need to mesh together spinning at the same time,making them mesh easier.

[aaronng]

rev matching reduces wear in the gearbox.if you do it right,you are essentially getting the two gears that need to mesh together spinning at the same time,making them mesh easier.

Rev matching does NOT get the input shaft speed up to mesh with the gears at the same speed. To do that, you need to double clutch (rev match in neutral with the gear out).

[Bludger]

put simply, so anyone can understand

rev matching, you're smoother

whats better for your car

rough driving or smooth driving?

[teh_mechanic]

Rev matching does NOT get the input shaft speed up to mesh with the gears at the same speed. To do that, you need to double clutch (rev match in neutral with the gear out).

cool,i was assuming thats what we were referring to.
spare the argument about the difference between rev matching and double clutching and the 10 other techniques ppl probably hav.good note though aaroonng,atleast you named whats happening with the components,not just making random NO statements

[markoJEK1]

thanks for the reponses guys, gathering from what has been said, its a better thing, I know its better in the sense of 'feel' no jerking and a smoother drive, but my question was is it better / worse for the components, and from reading these replies Ive gathered that it is a YES its better then the conventional downshifting method

[TheSaint]

can someone explain in detail how to rev match

i have had it explained to me a few times but i want to work it out properly and practice

[Bludger]

when downshifting, eg. from 3rd to 2nd,

you clutch in, shift back to 2nd, then blip the throttle to the anticipated revolutions it will be at in 2nd gear, before you release the clutch

sitting passenger with someone that can demonstrate this is the bst explanation

[krogoth]

Rev matching is always good. The only other method to downshift without rev matching and reducing driveline shock is to slowly release the clutch and let it do the work to speed up the engine. Of course, you get accelerated clutch wear..... Rev matching is always good. But when I am slowing down to stop at the lights, I just downshift from 6-5-4 and 4th gear is enough to get me down to 20km/h where I can just clutch in and brake to a stop. I don't do the 6-5-4-3-2-1 that some people like to do.... Wears the synchros out too much in my opinion.

aaron, i just leave it in 5th wen coming to traffic light thats red...

or put it in 4th and brake, i rarely go through all the gears unless its necesarry wen approaching a red light

anything wrong with my "method"? lol

[vincikwan]

krogoth, ur method will use tend to use up the brakes more often and it is not as safe as dropping the gears. Using the engine brake including the foot brake will be alot safer in terms of stopping.

[krogoth]

yeh man, thats true

but id rather use the pads more than the gearbox, as pads are cheaper

and im generally a very aware driver, and esp in traffic, i never accel or speed more than necesary

so i just roll to a stop nice and slowly with lots of room to spare in the same gear, saves the gearbox, and doesnt use the pads much more than usual since im taking a long distance to slow down anyway

[aaronng]

krogoth, ur method will use tend to use up the brakes more often and it is not as safe as dropping the gears. Using the engine brake including the foot brake will be alot safer in terms of stopping.
I'd rather change brake pads than clutch/synchros.
And the foot brake is safer for stopping. Try relying on engine braking during an emergency where you need quick and immediate braking.

[vincikwan]

Its safer with the engine brake then with just only brakes while you are in 5th or 6th gear. Did'nt the driving instructors in aus tell you guys that? But then again, i heard that to pass an aus driving test, all you need to do is know how to drive. In Singapore, we have to pass a circuit test with "S" curves and "crank" curves plus some other circuit stuff including parrallel parking and vertical parking. Also a whole bunch of theory including maintaining the car and all that bullshit.

In anycase, if you heel and toe properly(so called rev-matching) you save your clutch.

[krogoth]

not so much ur clutch

rather, ur synchros

[vincikwan]

And alot of other stuff as well if you wanna pick it out....lol. But yeah....

[aaronng]

Its safer with the engine brake then with just only brakes while you are in 5th or 6th gear. Did'nt the driving instructors in aus tell you guys that? But then again, i heard that to pass an aus driving test, all you need to do is know how to drive. In Singapore, we have to pass a circuit test with "S" curves and "crank" curves plus some other circuit stuff including parrallel parking and vertical parking. Also a whole bunch of theory including maintaining the car and all that bullshit.

In anycase, if you heel and toe properly(so called rev-matching) you save your clutch.

Try measuring the distance to come to stop if you braked hard in 6th gear all the way to a stop, and if you downshifted and braked together. :)

[vincikwan]

u should practice more then...if u insist, i wont argue

[string]

Try measuring the distance to come to stop if you braked hard in 6th gear all the way to a stop, and if you downshifted and braked together. :)

I'm with you - not a chance going through the gears would be faster, and i'd argue it's no safer. In an emergency situation, i'll be on the brakes HARD, keeping my hands for steering. No time for gear changes, we're not in the matrix, accidents don't go into bullet time :D

When coming to a stop at lights, I only go back to third. I am constantly aware of what is going on around me so can put it into gear if a situation arises (someone is approaching from behind too fast for example).

[vincikwan]

Well, i guess we are all trained differently including our driving habits. Not saying anyone is wrong mate. Just that i learn driving in Singapore and you guys learn it here. Which ever is more comfortable should be the right way to drive. In emergency stop situations, i am also trained to just jam the brakes and dont even touch the clutch....just let the car stall. but we are talking about safetly stopping at the traffic lights. Its safer in a lower gear as you will feel more "pull" at the wheels.

[TheSaint]

i hate it when ppl cluch in and than brake to a stop

id rather the car be in the relative gear to the speed, so that if u need to get out of a sticky situation than u can

[vincikwan]

Good driving habit to always be in a relative gear.

[aaronng]

i hate it when ppl cluch in and than brake to a stop

id rather the car be in the relative gear to the speed, so that if u need to get out of a sticky situation than u can

I agree, I don't clutch in until I am almost stopped. I just don't agree that I have to row through 6th to 1st gears when going down to 4th gear is sufficient enough. For hard braking, I just brake without clutching in until the car is almost stopped.

[vincikwan]

i dont think anyone in the right mind will go all the way to 1st gear. haha. Mostly i go down to 3rd. Thats slow enough to be really safe even in case of any sticky situations.

[aaronng]

i dont think anyone in the right mind will go all the way to 1st gear. haha. Mostly i go down to 3rd. Thats slow enough to be really safe even in case of any sticky situations.

Ahh, in that case, I also do it similarly to you. Sorry about the miscommunication earlier.

[krogoth]

as aaron said earlier, some ppl, and i noticed this with some of my friends as well, is that they are doing 80 in 5th, they see a red light

and rather than stop accelerating early, and roll to a stop wil leaving gear 5 engaged, theyll keep accelerating until theyr too close, then theyll rip through the gears, from 5th to 2nd, without skipping a gear....

u waste ur brakes, ur synchros, ur clutch....not necesary at all

max i do, wen i feel i need more control, is 4th, and if really necesary, 3rd, and thats rare

[vincikwan]

Ahh, in that case, I also do it similarly to you. Sorry about the miscommunication earlier.

No worries man, everyone is entitled to thier own opinion.:thumbsup:

[flop101]

So what happens if your doing 80km/hr and see a red light approaching, then you decide to let it roll from neutral until it gets to a stand still at the lights?

[simmy]

So what happens if your doing 80km/hr and see a red light approaching, then you decide to let it roll from neutral until it gets to a stand still at the lights?

http://www.ozhonda.com/forum/customavatars/avatar29858_64.gif

[trism]

holy ****ing thread bump

[eLtrix]

Thread bump of peace.

[euRo_noob]

So what happens if your doing 80km/hr and see a red light approaching, then you decide to let it roll from neutral until it gets to a stand still at the lights?

notsureifsrs.

It's fine. You'll be just using your brakes more. Just gradually brake, don't slam it at a short distance.

[PHO]

Peace bump of thread

[Baby Face]

doepends how fast/slow you down shift if u do it quick without braking revs might not match if you do most slowng in 3rd gear with braking and then u change into 2nd slowly when almost snailing along then the differnce in revs between 2-3 gear is almost none or atleast very low.

but whats this for is it racing or just slowing to lights? slowing for intersections?