Jump to content
SAU Community

Recommended Posts

Just wondering what people do when they are coming up to a stop light and anticipate stopping there for a minute.

Downshift or brake to idle rpm and then coast in neutral (what I'm doing now). Basically I figured that clutches are more expensive than brake pads.

Also I have heard differing things regarding skipping gears on downshifts putting more strain on your transmission? I thought that as long as the revs fall within your safe range for the gear you intend to go into, it shouldn't matter how many gears you skip. Is this true or not?

Thanks.

Edited by Phatboy
  • Replies 41
  • Created
  • Last Reply

Top Posters In This Topic

Half half really, depends how lazy I am !!

Although since the new engine went in, its usually neutral........

I've been told the skipping gears going up can be bad for the box (synchros) .... not sure re downshift though.... assuming prolly the same. This could be a complete load of crap though...?!?

yer i usually down shift but thats how i was taught to drive i think lol

cant remember who said it but i think someone said to downshift coz u save ur brakes so u dnt have to change em as often but meh

Coast up to the stop, with system in gear (no need to down change) until it requires the clutch being disengaged.

There is no wear in the clutch while it is fully engaged. The wear occurs on "take-up" from a standing start, because you need to slip it a bit as it engages and transfers power to the gearbox. And there should be minimal wear in the brakes, because most of the stopping is achieved by friction in the drivetrain.

I heard that there was wear in the clutch when fully engaged even when not changing gears, and that's the reason why you shouldn't coast with it depressed, instead put it in neutral. May be wrong, just what I heard from a few people.

It depends on distance to the lights when they change.

If I'm close, then clutch in and brake.

If far away, I downshift through the gears to second but use rev matching to minimise/eliminate clutch and synchro wear. (Needs a longer space to slow down than dropping the revs to idle and braking with clutch)

i double clutch, heal toe or flick it into neutral, skip gears sometimes as well, depends what mood i'm in really

i got taught to use the brakes when slowing down cos gearboxs cost more then brakes

Well the way I see it:

Downshifting.

Pros:

1. You have more control of the car, can accelerate quickly if needed.

2. It sounds better

Cons:

1. More wear/tear on clutch/synchros

2. If you engine brake without hitting the brakes, the guy behind you may not have noticed you have slowed down as your brake lights haven't lighted up.

The pros/cons of neutral would be the opposite obviously.

When I first started driving I would downshift coming up to a stop but only because it felt more controlled and it sounds cool too.

But then I got lazy and also figured the thing about brakepads & clutch wear and just coasted until just before the car needs more revs and neutraled it.

Edit: ^^ agree with the guy above in regards to when you engine brake, people behind you can't see you slowing down as easily.

Many years ago I was taught to downshift and brake...The reason behind it is when the car is in gear you have more control over the car with engine braking ect, coasting less control. If you've ever driven anything heavy like a fully laden truck you'd never consider coasting.

Also i'm on year 4 with both brakes and clutch on this car(app 42k on em), so I won't be changing my driving style....also sounds cooler :blink:

The cost of a decent h-d clutch, compared to h-d pads and quality rotors? who'd like to call that one? :blush:

We could also throw in the occasional calliper rebuild or 2 just bump cost a bit..

Clutch plus install is about $1-1.5k I thought.

Stockish brake pads are like what, $200 a set? Rotors are about $600-800 a set? But you wouldn't need to replace your rotors unless you do a lot of hard braking and they warped would you? ie., track use. In that case you would need to replace your clutch before anything else anyway.

I don't intend to do much track driving, and brake pads should last around 30k I think, so I am happy to sacrifice them rather than my clutch. And I'm too lazy to downshift (main reason) :blush: My clutch has been changed about 1 year ago to a Nismo copper twin plate clutch, so I think with my driving style it should last many many years to come.

If it's wet I put the clutch in and rip the handbrake on then hold the car at a 45 degree angle as I approach the lights. Tyres don't wear in the wet, and since the rears are locked and I'm not on the pedal I'm not using any brakes at all!

(I'm not serious, btw)

normally downshift at least to 3rd, and coast in-gear until i need to put the clutch in. it's better to be in gear, you'll get docked during a driving test if you neutral + coast, because if something happens and you need to put your foot down you're going to get a whole lot of revs and not much else.

I think its illegal to roll in neutral (in victoria)..

What i do is just stay in gear as im coming up to the lights and clutch in as soon as the car comes to a stop. By downshifting you're just revving the engine more and burning more fuel..

Downshifting is good if you are rolling to the lights which are going to change green before you come to a stop.

Clutch plus install is about $1-1.5k I thought.

Stockish brake pads are like what, $200 a set? Rotors are about $600-800 a set? But you wouldn't need to replace your rotors unless you do a lot of hard braking and they warped would you? ie., track use. In that case you would need to replace your clutch before anything else anyway.

I don't intend to do much track driving, and brake pads should last around 30k I think, so I am happy to sacrifice them rather than my clutch. And I'm too lazy to downshift (main reason) :) My clutch has been changed about 1 year ago to a Nismo copper twin plate clutch, so I think with my driving style it should last many many years to come.

Ahh so you're comparing a nice "brand name" clutch against the price of stock rotors and pads...same quality pls ;)

Probably more chance of warp/hotspots from using the coast/brake method than a combo of gearing and brakes...less load on the brakes = less heatsoak through pads/rotors and calipers.

I wonder If where people live or learnt to drive has an influence on there method of stopping ie:mountain areas compared to plains dwellers..I think It might.

But hey each to their own.. Whatever suit your stylez !!! :)

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Have a look at that (shitty) pic I posted. You can see AN -4 braided line coming to a -4 to 1/8 BSPT adapter, into a 1/8 BSPT T piece. The Haltech pressure sender is screwed into the long arm of the sender and factory sender (pre your pic) into the T side. You can also see the cable tie holding the whole contraption in place. Is it better than mounting the sender direct to your engine fitting......yes because it removes that vibration as the engine revs out 50 times every lap and that factory sender is pretty big. Is it necessary for you......well I've got no idea, I just don't like something important failing twice so over-engineer it to the moon!
    • Yup. You can get creative and make a sort of "bracket" with cable ties. Put 2 around the sender with a third passing underneath them strapped down against the sender. Then that third one is able to be passed through some hole at right angles to the orientation of the sender. Or some variation on the theme. Yes.... ummm, with caveats? I mean, the sender is BSP and you would likely have AN stuff on the hose, so yes, there would be the adapter you mention. But the block end will either be 1/8 NPT if that thread is still OK in there, or you can drill and tap it out to 1/4 BSP or NPT and use appropriate adapter there. As it stands, your mention of 1/8 BSPT male seems... wrong for the 1/8 NPT female it has to go into. The hose will be better, because even with the bush, the mass of the sender will be "hanging" off a hard threaded connection and will add some stress/strain to that. It might fail in the future. The hose eliminates almost all such risk - but adds in several more threaded connections to leak from! It really should be tapered, but it looks very long in that photo with no taper visible. If you have it in hand you should be able to see if it tapered or not. There technically is no possibility of a mechanical seal with a parallel male in a parallel female, so it is hard to believe that it is parallel male, but weirder things have happened. Maybe it's meant to seat on some surface when screwed in on the original installation? Anyway, at that thread size, parallel in parallel, with tape and goop, will seal just fine.
    • How do you propose I cable tie this: To something securely? Is it really just a case of finding a couple of holes and ziptying it there so it never goes flying or starts dangling around, more or less? Then run a 1/8 BSP Female to [hose adapter of choice?/AN?] and then the opposing fitting at the bush-into-oil-block end? being the hose-into-realistically likely a 1/8 BSPT male) Is this going to provide any real benefit over using a stainless/steel 1/4 to 1/8 BSPT reducing bush? I am making the assumption the OEM sender is BSPT not BSPP/BSP
    • I fashioned a ramp out of a couple of pieces of 140x35 lumber, to get the bumper up slightly, and then one of these is what I use
    • I wouldn't worry about dissimilar metal corrosion, should you just buy/make a steel replacement. There will be thread tape and sealant compound between the metals. The few little spots where they touch each other will be deep inside the joint, unable to get wet. And the alloy block is much much larger than a small steel fitting, so there is plenty of "sacrificial" capacity there. Any bush you put in there will be dissimilar anyway. Either steel or brass. Maybe stainless. All of them are different to the other parts in the chain. But what I said above still applies.
×
×
  • Create New...