This is starting to get truly rediculous. How many people and how many times is it going to take to tell some of you people this fact before you believe it?

WHEN DECELERATING, IN GEAR, CLUTCH ENGAGED, FOOT OFF GAS, ABOVE IDLE RPM, THE INJECTORS ARE NOT WORKING!
Translation: When the injectors are NOT working, no fuel flows through them. In other words, no fuel is being used in the combustion process.

How long are you coasting in neutral? For every revolution that the engine IDLES, it will consume so much fuel.
How high are you revving it when you "blip" the throttle to rev match and at what rate are you blipping it?
To be honest, does this difference really matter?

 

I always stay in gear until about 1,400rpm or so before clutching in as I roll up to stop lights. If you clutch in and pop to neutral as you roll to the light, the engine is using gas to maintain idle.

Fairly often, I'll rev match downshift and I'm sure the blip uses a touch of gas, but it also saves wear on the brakes, but I suppose it causes a bit of wear to the engine/clutch, though it would have to be a very, very finite amount. The fun factor makes it worth it.

 

Hi xviper
Go burn some fuel before you get another forum-full-circle-burn-out

 

Hey, I just learned what horsepower REALLY is two weeks ago. I am a mechanical engineer with a Formula SAE background where I designed engine intake manifolds.

Just goes to show how much misconception exists out there....

 

I don't think his question was that insignificant. I often wonder how much fuel I am actually using by performing heel-toe downshifts or just rev matching in normal driving. I would wager that it takes an order of magnitude more fuel to quickly blip the throttle two or three thousand RPM than it does to sustain an idle for few seconds. I figure the fuel that I save by not idling everywhere, I more than make up for with engine speed matching.

But my method is FAR safer and FAR more fun

 

Thanks for watching out for me. Sometimes, it's just too easy for me to feel like this ...................................

 

Now GO and BURN some fuel

 

Good info, its definitely appreciated, but lose the attitude, plz. More importantly, change that retarded avatar. What the hell is that thing anyway?

 

[QUOTE=slimjim8201,May 23 2006, 02:45 PM] I don't think his question was that insignificant. I often wonder how much fuel I am actually using by performing heel-toe downshifts or just rev matching in normal driving. I would wager that it takes an order of magnitude more fuel to quickly blip the throttle two or three thousand RPM than it does to sustain an idle for few seconds. I figure the fuel that I save by not idling everywhere, I more than make up for with engine speed matching.

But my method is FAR safer and FAR more fun

 

I've been here over 5 years. I'm not about to change my "attitude" just because some newbie demands it. As for my avatar, almost everyone else here knows all about it and besides, I'm afraid you have me mistaken for someone who gives a shit about what you do or don't want.
You wanna learn stuff? I'll make GAWD DAMN sure you ain't one of the ones I'll be helping anytime soon.

replica

I'll remember that name from here on in. In fact, just to help me remember, you are about to be placed on my "IGNORE" list. Do forgive me for not responding to anymore of your replies. I won't be able to see them.
How's THAT for "attitude", BIG BOY?