Anyway to make the MS3 more economical?

[Sacrilicious]

How do they see it on the back of our car and get out of our way when if they are in our way they are ahead of us?

Should we install forward facing coffee cans?

oh, they have no need to SEE it...they will hear it from a mile away! (eek2)

 

[MP5World]

My 2003 MP5 Stock with only K&N Air Filter in Stock Airbox and Nitrogen in my Kumho Tires and I average 35 MPG on Highway doing 70 MPH. That is more than the Sticker says it is suppoise to get new. and I have close to 70,000 Miles on it. I only Change the oil and check fluids every 3000 Miles. Cheap car to drive and still fun. I Love It!!! Looking to get more air in and Better exhaust, But I think that will only help More HP with less RPM,S ? I could be wrong ... Good Luck Steve

 

[MS3077]

My 2003 MP5 Stock with only K&N Air Filter in Stock Airbox and Nitrogen in my Kumho Tires and I average 35 MPG on Highway doing 70 MPH. That is more than the Sticker says it is suppoise to get new. and I have close to 70,000 Miles on it. I only Change the oil and check fluids every 3000 Miles. Cheap car to drive and still fun. I Love It!!! Looking to get more air in and Better exhaust, But I think that will only help More HP with less RPM,S ? I could be wrong ... Good Luck Steve

You do know that this is a Mazdaspeed3 thread right? The MS3 has a whole lot more power than a 2003 MP5 so of course it's not going to get 35mpg.

 

[GullyBoy21]

I got 400 miles in one Tank. I did everything from crusing @ 55-65 in the high way, accelirating slow in the city, and keeping it at low Rpms.(breakn) This means i got 30 mpg city/highway right? muahahaha(nana)

 

[nate0123]

I got 400 miles in one Tank. I did everything from crusing @ 55-65 in the high way, accelirating slow in the city, and keeping it at low Rpms.(breakn) This means i got 30 mpg city/highway right? muahahaha(nana)

you'd need to record the gallons required to refill to full to calculate the mileage

 

[PeterC]

shifting at 2krpms is not necessarily the best thing for gas mileage. it basically means that you may end up pushing down harder on the throttle than you should have to in order to get acceleration. as happy and angry says, it means that you're actually trying to push the car outside of its power band, and that's not the efficient way to use your fuel.

here's some info for a more technical explanation:

at <2krpms, if you press down moderately hard on the throttle, you will see the MAP go from -20vac to 0psi very easily. doing the same thing at >3krpms, you might hit like -10vac.

what does this mean? well, if you get a Dash Hawk, you will see that our cars run at an AFR of about 14.x most of the time (unless you're not pressing down on the throttle or you're boosting). AFR = air/fuel ratio, so if your air/fuel ratio is staying about the same, but your MAP just shot way up, your ECU will fire up the fuel injector pressure in order to squirt way more gas into the engine cylinders to maintain its commanded AFR. when you're outside of your power band, it can cost you more fuel to get the same amount of acceleration out of your engine as compared to being in a lower gear but staying within your power band. the lower gear may be running at higher RPMS (more total detonations), but because it's running at a significantly lower MAP, which means significantly less fuel is injected into the cylinder per detonation, the total fuel burned may actually be less under the same acceleration conditions.

the above conditions are why i asked yashart if he was driving slightly uphill for extended periods of time, because that is a perfect example of a cruise condition where being in a higher gear may actually hurt you, since you will have to apply more throttle pressure to maintain your speed than if you were in a lower gear.

anyways...this is just another angle for you to try. give it a shot sometime and see if it helps you, because your current method seems not to be working as well as it could...=/ this, btw, is why i think boost gauges help...because you can see exactly how far into the vac you are.

Thanks for the info! I have always wondered if even in a high gear if I floored it that it used more gas even though I wasn't going anywhere. I just assumed gas mileage was only correlated to RPM and turbo spool, not throttle application. I will adjust and see what happens.

 

[GullyBoy21]

Simple math you butt muncher, and yes i did the calculation.
(lol)

 

[nate0123]

Simple math you butt muncher, and yes i did the calculation.
(lol)

well, you were asking like you weren't sure (hand)

 

[stockms3]

Dont drive it just stare at it

 

[nate0123]

(mswerd)

infinite mileage

 

[Da 6]

LOL gauge is good to see where you are when cruising as well as initial take off. MPG or not you should have one. I can tell when I am gonna get a leak(as in lose another line again). Not 100% needed for mpg but helps alot if you got it. Who says he isn't already doing good mpg habits?

 

[Sacrilicious]

Thanks for the info! I have always wondered if even in a high gear if I floored it that it used more gas even though I wasn't going anywhere. I just assumed gas mileage was only correlated to RPM and turbo spool, not throttle application. I will adjust and see what happens.

ya, i confirmed this with a dash hawk, because the latest firmware allows for logging of fuel usage. it's measured in mg/cylinder of gasoline, and it goes INSANE if you go from just cruising with a light foot on the gas pedal at lower rpms to stomping it...even though you got like next to no acceleration...=/

 

[2000VRsex]

1- SELL IT
2- don't race at all
3- tune it to use low octane fuel
4- change oil constantly
5- check tire pressure constantly
6- loose weight (you, not the car)
7- no fat people allowed in your car
8- no long trips
9-shut off the engine at red-lights
10- shut off the engine while cruising down hill
11- get rid of your girlfriend (useless extra weight)


that's all i cna think off....

other than...it is a performance car and people don't buy it to save gas...

not sure if this has been brought up since I didnt read the rest but, doesnt your car use more gas turning it off and on then letting it sit? ive always read that you only shut off if you sitting there for more than like 10mins,which would be crazy to not move at a stop light lol...correct me if im worng but thats what ive always read

 

[robin2660]

not sure if this has been brought up since I didnt read the rest but, doesnt your car use more gas turning it off and on then letting it sit? ive always read that you only shut off if you sitting there for more than like 10mins,which would be crazy to not move at a stop light lol...correct me if im worng but thats what ive always read

Translation: "That's what I heard once." (spin)

 

[07speed3]

ya, i confirmed this with a dash hawk, because the latest firmware allows for logging of fuel usage. it's measured in mg/cylinder of gasoline, and it goes INSANE if you go from just cruising with a light foot on the gas pedal at lower rpms to stomping it...even though you got like next to no acceleration...=/

is that why theres that puff of black smoke when you stomp on it?

 

[Sacrilicious]

is that why theres that puff of black smoke when you stomp on it?

oh, i think you're thinking more of the puff we get when we blast it with our turbo. that's from the engine running rich and spewing out gas-rich fuses into our exhaust...

 

[IrishMidak]

just to remind everyone, the original poster has no intention of changing his driving style
he wants the car to just use less gas, by itself, with no change from him

maybe he wants 2 of his cylinders to deactivate when they're not being used (hah)

Where did I say that? I was looking for ways to make the car more economical, not my driving. Never said I did not change my driving style nor did I say I did not know how. The topic was "Anyway to make the MS3 more economical?" Not, "Anyway to make me a more economical driver?"
(fu)

 

[MS3077]

lol

 

[builthatch]

Where did I say that? I was looking for ways to make the car more economical, not my driving. Never said I did not change my driving style nor did I say I did not know how. The topic was "Anyway to make the MS3 more economical?" Not, "Anyway to make me a more economical driver?"
(fu)

y0, why so hot? you started this thread on a public forum; consider the fact that people have provided info, good or bad, and stop being so agitated for no reason...

you've entered quite a few hot responses on here directed toward the members.

 

[MS3077]

y0, why so hot? you started this thread on a public forum; consider the fact that people have provided info, good or bad, and stop being so agitated for no reason...

you've entered quite a few hot responses on here directed toward the members.

Probably, but he's also been insulted by members as well. Maybe not directly but indirectly