Mpg question
Thread Starter
11 Second Club
Joined: Aug 2012
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From: Middletown, DE
Mpg question I've always wondered this: If I put my car in neutral when I am slowing down, coming to a stop, etc, instead of downshifting, will i get better mpg than if i was downshifting?
On The Tree
Joined: Feb 2013
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From: Louisville, KY
Btw... nice wheels bro... we be keepin it all stock lookin
Thread Starter
11 Second Club
Joined: Aug 2012
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From: Middletown, DE
But to above, switching it to neutral is better for the transmission and clutch than downshifting?
I wouldn't.
As soon as you push the brake pedal in an auto car, the torque converter unlocks and RPMs drop to basically idle level.
Best way to do this (assuming it does much at all) would be to leave it in gear, and as soon as you see the need to stop, get off the gas and just BARELY touch brakes to disengage converter (I can feel it in my car with the big stall, just look for rpm drop) and coast without letting brakes drag obviously.
As soon as you push the brake pedal in an auto car, the torque converter unlocks and RPMs drop to basically idle level.
Best way to do this (assuming it does much at all) would be to leave it in gear, and as soon as you see the need to stop, get off the gas and just BARELY touch brakes to disengage converter (I can feel it in my car with the big stall, just look for rpm drop) and coast without letting brakes drag obviously.
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On The Tree
Joined: Feb 2013
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From: Louisville, KY
Your getting 360hp/372tq with those mods... i have those same mods just didn't know what kind of hp/tq i was getting. Guess i need to get my car tuned. Did they tell what the before and after difference of your tune? Im curious what my gains will be.
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Thread Starter
11 Second Club
Joined: Aug 2012
Posts: 730
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From: Middletown, DE
Tune will make all the difference my friend. & it all adds up, every little thing you do including the free ram air mod. Before the tune I believe I was making 335/340
On The Tree
Joined: Feb 2013
Posts: 106
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From: Louisville, KY
Yeah i need to get this done for sure. Only real difference i have over yours is a true dual setup, not sure how much of a difference this will make though.
TECH Fanatic
Joined: Aug 2004
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From: Auckland, Nth Is, New Zealand.
I wouldn't.
As soon as you push the brake pedal in an auto car, the torque converter unlocks and RPMs drop to basically idle level.
Best way to do this (assuming it does much at all) would be to leave it in gear, and as soon as you see the need to stop, get off the gas and just BARELY touch brakes to disengage converter (I can feel it in my car with the big stall, just look for rpm drop) and coast without letting brakes drag obviously.
As soon as you push the brake pedal in an auto car, the torque converter unlocks and RPMs drop to basically idle level.
Best way to do this (assuming it does much at all) would be to leave it in gear, and as soon as you see the need to stop, get off the gas and just BARELY touch brakes to disengage converter (I can feel it in my car with the big stall, just look for rpm drop) and coast without letting brakes drag obviously.
Thread Starter
11 Second Club
Joined: Aug 2012
Posts: 730
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From: Middletown, DE
You will certainly get better airflow than me! I want to get duals on mine, how do they sound compared to a Y pipe?
I think that under certain conditions (pcm detects engine braking) the fuel will be cut off. I downshift and engine brake all the time, and I never really noticed any difference in gas mileage. Prolly b/c I double clutch, and that rev matching kills any gas savings I would get lol.
OP do what ever makes you happy. I really dont think it will matter concerning mpg.
Thread Starter
11 Second Club
Joined: Aug 2012
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From: Middletown, DE
I'm just going to keep switching to neutral for the sake of my transmission and clutch like it was said above, I didn't buy the car for it's gas mileage
Of course it would be better, how much and if it is measurable, is up for debate. Less rpm's will always use less fuel. I kick my car to neutral when rolling up to lights. Saves wear and tear on driveline oparts as well. I'll save the engine braking for when I need it.
Thread Starter
11 Second Club
Joined: Aug 2012
Posts: 730
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From: Middletown, DE
Of course it would be better, how much and if it is measurable, is up for debate. Less rpm's will always use less fuel. I kick my car to neutral when rolling up to lights. Saves wear and tear on driveline oparts as well. I'll save the engine braking for when I need it.
