Ignition vs. Roll start?

[BailOut]

Originally Posted by sbergman27

One thing that generally gets lost in these discussions is the true motivation. It's not the pennies worth of fuel saved. It's being able to go on forums like these and say "I finally hit 50 mpg!" and have a couple dozen people 'attaboy you for doing so well. That's the true motivation and potential pay off.

-Steve

That's quite an assumption on your part, and an incorrect one at that.

I'm beginning to sense a pattern here...

[sbergman27]

Originally Posted by BailOut

That's quite an assumption on your part

If you are arguing that a general sense of "I'm being green" is often involved, I would agree. But by the time one gets to things like coasting with the engine off, the game has become more about the numbers than about the green.

-Steve

[Loren]

Originally Posted by Tamago

especially considering the fact that most of you are wasting the money spent on gas...

I waste the money I save by hypermiling (which, honestly, is NOT very much... I added it up to maybe $150/year max) on motorsports entry fees!

I don't get extreme with it. I don't drive slower than the flow of traffic, and generally don't accelerate slower than they typical "slow poke", I don't run red lights, and... what was this thread about? Oh yeah... I don't shut off the ignition in my normal driving. To me, it's far more trouble than it's worth for daily driving.

As with many things, there are different levels of "hypermiling". Don't assume that everyone who does it is the extreme example. I do it merely to entertain and challenge myself in some way other than pushing the limits of the car's acceleration and handling ability on the street. Keeps me out of trouble.

[BailOut]

Originally Posted by sbergman27

If you are arguing that a general sense of "I'm being green" is often involved, I would agree. But by the time one gets to things like coasting with the engine off, the game has become more about the numbers than about the green.

-Steve

That's quite an assumption on your part, and an incorrect one at that.

I DO sense a pattern here...

[Gideon]

Originally Posted by silver_vios

I'm assuming you can't think of a good response to sbergman or tamago, so you're just babbling about assumptions now.

lol, well judging from your reply and join date I'm going to assume you're quite new and don't know BailOut very well.

My guess is he wants to conserve energy by not having to type out a multi-paragraph reply justifying his passion for conserving finite resources.

[1stToyota]

Originally Posted by sbergman27

One thing that generally gets lost in these discussions is the true motivation. It's not the pennies worth of fuel saved. It's being able to go on forums like these and say "I finally hit 50 mpg!" and have a couple dozen people 'attaboy you for doing so well. That's the true motivation and potential pay off.

-Steve

You're wrong, it IS about the pennies, or at least it is with the guy you're debating. Not too long ago he worked it out that if someone is able to avoid using one's blower motor for 75 years!! they'll save enough $$ to get 2 free tanks of fuel in their Yaris. WOW! I doubt that anybody has ever done that or will ever do that so I guess we'll trust his math.

I don't know, I drive with the flow of traffic, run 32 psi in my tires, leave my engine running when going down hills, use my accessories, ignore my gas gauge until it's time for a refill and still manage to get between 41-44 mpg...probably close to the average hypermiler w/ their mpg banners in their sigs, at this forum.

[1stToyota]

Originally Posted by BailOut

You seemed to have missed the point that the brakes are still good for 4-5 touches before the vacuum needs to be recharged.

I'm sorry, but a guy going down hill w/ the motor shut off, counting how many safe touches are left in his brakes is like a guy playing Russian roulette bragging that he's still got 5 empty chambers.

[Rick]

Nope, It's more like someone in a gunfight with a revolver. While he only has six shots before he has to reload (bump-start the engine), if he can't solve his immediate problem in six shots he really shouldn't be attending gunfights (shouldn't be driving).

[1stToyota]

And just hope that one of your shots isn't a misfire; might just be the last thing you remember.

[Loren]

You guys know that you don't lose all braking just because you run out of vacuum assist, right?

The Yaris has a pretty small amount of vacuum reserve, I've run out of assist on the race track a few times and near the end of autocross courses often. It's scary when you're not expecting it, but if you recognize what's happening, it's not a big deal. Just press harder on the brake pedal, the brakes still work.

(One of these days I'm going to experiment with removing the vacuum altogether just to see if the consistency of feel is more acceptable to me than the assist cutting out unexpectedly.)

[1stToyota]

And I hope that you also realize that if you lose your power assist you're brakes aren't nearly as effective. By the time you figure out that you've lost the assist and you'll have to press a lot harder it could be too late. Oh well.

And you lost vacuum to your booster at the track, or are you experiencing brake fade from overuse?

[Loren]

Originally Posted by 1stToyota

And you lost vacuum to your booster at the track, or are you experiencing brake fade from overuse?

I've had both. At autocrosses, the brakes never get hot enough to pad fade (with upgraded pads... the stock pads would fade regularly) or boil fluid. I left-foot-brake when I autocross, so I'm on and off the brakes a lot more than most people. Sometimes near the end of a run, I'll run out of boost. Last weekend, it was happening at exactly the same place on every run. Just one of those things.

Pad fade used to happen at the track a lot until I installed brake cooling ducts.

[Boost Addicted]

On the matter of shutting off your ignition while rolling...I just thought I'd mention that in addition to the stupidity and danger of the act, it's also illegal. And as someone mentioned, when you're in gear, and your foot's off the gas, you're using zero fuel... The injectors turn off, and your wheels keep the engine turning.

[BailOut]

Originally Posted by Boost Addicted

On the matter of speeding...I just thought I'd mention that in addition to the stupidity and danger of the act, it's also illegal.

There. Fixed it for ya.

[yaris2010RS]

wow.....lol, y do touchy subjects always turn into bit@h fits?

lol, i have somewhat the same question as the OP, whats better for the car, puch start or crank? jsut about everywhere i park, i am capable of rollstarting it (and i dont know if anyone has tried it, but out little yaris, hb atleast, is so light u can push start it yourself, lo0l, me and my friends got a good kick out of it) so what is better in the long run (no one really cars about MPG, jsut for the car itself)

and really, this car is so great on gas. i only get a +-30km difference between tanks and thats one tank of WOT (no my car isn't involved in the recall..... i'm jsut a teen) to nbormal driving. i'm so hapy with it

[ddongbap]

Originally Posted by Tamago

save gas while slamming into the car in front of you when you have no power brakes?

yeah that sounds like a hypermiler.

I LOL"d so hard after reading this.

[Bluevitz-rs]

Roll starting a manual is no different than down shifting. Put it in 1st or 2nd and let the clutch out, don't touch the throttle and the car starts. No electrical energy required.

Plus for the hypermilers out there, you're saving gas because you don't have to regenerate the energy lost in the battery from using the starter.

[1stToyota]

Originally Posted by Boost Addicted

On the matter of shutting off your ignition while rolling...I just thought I'd mention that in addition to the stupidity and danger of the act, it's also illegal. And as someone mentioned, when you're in gear, and your foot's off the gas, you're using zero fuel... The injectors turn off, and your wheels keep the engine turning.

+1