some odd question i always wanted to ask
23-Jun-2008, 09:50 PM
#1
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some odd question i always wanted to ask
so there are some odd questions that i have asked to some people before but noone has really give me a good answer to them and i heard some diferent opinions about them before. So I am hoping someone with some knowledge can answer them for me
1
Does it harm your automatic transmission if you change it from drive to neutral and viceversa ? is the car supposed to take this shift? ( i have the mazda 3 tiptronic and the car can go from drive to manual without pressing a button )
2
Can you blow your engine or do a lot of harm if you take your car past 5000 rpm ( tops at 7000rpm) once in a while ( maybe once a week or so) ?
3
Putting an air intake saves you gas??
In the first two questions I received mix responses before. In my personal opinion i believe that you can change from drive to neutral and it won't do much damage to your tranny , i based this because i seen a lot of people doing it in the past without any problems however they tend to change the tranny oil on time. As per the second one , I believe a car like the mazda gt or civic si are made to be push and going past 5000 or 6000 rpm once in a while should not harm your engine at all, however doing it on a daily basis you may have issues (not always)
Anyone?
1
Does it harm your automatic transmission if you change it from drive to neutral and viceversa ? is the car supposed to take this shift? ( i have the mazda 3 tiptronic and the car can go from drive to manual without pressing a button )
2
Can you blow your engine or do a lot of harm if you take your car past 5000 rpm ( tops at 7000rpm) once in a while ( maybe once a week or so) ?
3
Putting an air intake saves you gas??
In the first two questions I received mix responses before. In my personal opinion i believe that you can change from drive to neutral and it won't do much damage to your tranny , i based this because i seen a lot of people doing it in the past without any problems however they tend to change the tranny oil on time. As per the second one , I believe a car like the mazda gt or civic si are made to be push and going past 5000 or 6000 rpm once in a while should not harm your engine at all, however doing it on a daily basis you may have issues (not always)
Anyone?
24-Jun-2008, 01:40 AM
#3
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1. no point in shifting it from drive to neutral. For instance, going down a hill and putting it into neutral will give you no gains.
2. engines are pretty hard to blow unless it has forced induction. Then again, it will definitely wear out your car faster.
3. putting in an intake will most likely decrease your gas mileage, although very slightly or almost unnoticeable.
2. engines are pretty hard to blow unless it has forced induction. Then again, it will definitely wear out your car faster.
3. putting in an intake will most likely decrease your gas mileage, although very slightly or almost unnoticeable.
24-Jun-2008, 10:06 AM
#4
I dont think it'll save you gas, might use more.. but so little you wont notice.
28-Jun-2008, 11:36 PM
#6
1. No point in going from drive to neutral and back. Can harm the transmission if you are doing it with higher revs.
2. What is your cars redline? My lude is 7,500 rpm, and I take it past 5,000 rpm every time I get into it. Keeps the exhaust clean from carbon build up.
3. I got better gas mileage when I changed the intake, header, cat converter, and exhaust. Minimal amount though. On a side note: Those changes also reduced my emissions (cat converter was a new stock one). First test at three years old my car was skitting around the max numbers, at five years old I blew nearly zero emissions according to the machine.
2. What is your cars redline? My lude is 7,500 rpm, and I take it past 5,000 rpm every time I get into it. Keeps the exhaust clean from carbon build up.
3. I got better gas mileage when I changed the intake, header, cat converter, and exhaust. Minimal amount though. On a side note: Those changes also reduced my emissions (cat converter was a new stock one). First test at three years old my car was skitting around the max numbers, at five years old I blew nearly zero emissions according to the machine.
29-Jun-2008, 03:44 PM
#7
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1. wont hurt it
2. wont hurt it
3. i've heard quite a few people say they get better gas mileage with an intake, then again i hang out with truck guys, but if u think about it, the easier the flow thru the motor is, the less it has to work, so if its trying to suck air thru a 1.5 inch tube it has to work harder then if it sucks air thru a 3 inch tube. same with exhaust, less restriction = better flow = motor not struggling to make power so to speak. but it also depends on the vehicle for getting better gas mileage. some may get better then others
2. wont hurt it
3. i've heard quite a few people say they get better gas mileage with an intake, then again i hang out with truck guys, but if u think about it, the easier the flow thru the motor is, the less it has to work, so if its trying to suck air thru a 1.5 inch tube it has to work harder then if it sucks air thru a 3 inch tube. same with exhaust, less restriction = better flow = motor not struggling to make power so to speak. but it also depends on the vehicle for getting better gas mileage. some may get better then others
29-Jun-2008, 08:11 PM
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thanks a lot for all the responses !. I just got back from a long trip to windsor and cities near by , I was actually very please with the mileage I've got on my mazda 3 , 620km until the ligt went on , according to the book i would still had like 40 km more to go.
As per the air intake , I kind of agree that it saves you some gas , I have one in my civic and if driving properly I can get some crazy mileage ( 600+ in city , 700 + in highway) , I have friends at work driving civics (old people ) and they do not get that much mileage. I am not sure to what extend it saves you gas though.
Yesterday I saw a cab that was running on propane , I didnt know it was allowed in canada. I remember going back south and hearing of people changing theirs cars from gas to propane to save some $$ in fuel (propane is cheaper and last longer i heard ...) , Anyone here knows if its possible to do it in canada ? how much it would cost you? would you see better results in your gas mileage??
thanks guys
As per the air intake , I kind of agree that it saves you some gas , I have one in my civic and if driving properly I can get some crazy mileage ( 600+ in city , 700 + in highway) , I have friends at work driving civics (old people ) and they do not get that much mileage. I am not sure to what extend it saves you gas though.
Yesterday I saw a cab that was running on propane , I didnt know it was allowed in canada. I remember going back south and hearing of people changing theirs cars from gas to propane to save some $$ in fuel (propane is cheaper and last longer i heard ...) , Anyone here knows if its possible to do it in canada ? how much it would cost you? would you see better results in your gas mileage??
thanks guys
29-Jun-2008, 08:14 PM
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propane is legal, but you lose a ton of power so on a 4cyl car it would suck *****, not to mention I havent seen anybody convert one...propane is cheap, mileage on it sucks though but its only like 6bucks a tank and you get about 300km on it or so and thats a v8 engine
29-Jun-2008, 08:21 PM
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propane is legal, but you lose a ton of power so on a 4cyl car it would suck *****, not to mention I havent seen anybody convert one...propane is cheap, mileage on it sucks though but its only like 6bucks a tank and you get about 300km on it or so and thats a v8 engine
6 bucks for 300 km , damn I may be willing to loose some power for that price. If gas keeps going up I rather drive a slow mazda 3 than be driving an also slow echo. I know that in southamerica a lot of people change from gas to propane , it would be good to know how much power you loose.Or if you could still drive on propane and gas together .
29-Jun-2008, 08:24 PM
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u could flex fuel your car to run both but mind you with propane you lose like 50% of your power hahaha...but to convert a vehicle it costs thousands of dollars
like the new GM van engine arent able to be converted because of the head design etc. its not a simple process but if done its advised to have a flex fuel system to run both gas and propane so when u need that extra power u turn on the gas system (like going up hills) at full throttle u actually slow down goin up a hill on propane..oh also with propane the less fuel in the tank the less power you have
like the new GM van engine arent able to be converted because of the head design etc. its not a simple process but if done its advised to have a flex fuel system to run both gas and propane so when u need that extra power u turn on the gas system (like going up hills) at full throttle u actually slow down goin up a hill on propane..oh also with propane the less fuel in the tank the less power you have
29-Jun-2008, 08:31 PM
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u could flex fuel your car to run both but mind you with propane you lose like 50% of your power hahaha...but to convert a vehicle it costs thousands of dollars
like the new GM van engine arent able to be converted because of the head design etc. its not a simple process but if done its advised to have a flex fuel system to run both gas and propane so when u need that extra power u turn on the gas system (like going up hills) at full throttle u actually slow down goin up a hill on propane..oh also with propane the less fuel in the tank the less power you have
like the new GM van engine arent able to be converted because of the head design etc. its not a simple process but if done its advised to have a flex fuel system to run both gas and propane so when u need that extra power u turn on the gas system (like going up hills) at full throttle u actually slow down goin up a hill on propane..oh also with propane the less fuel in the tank the less power you have
great to know. I am sure the conversion is expensive. But it may be worth it in the future , also its great that you can run propane and fuel together . I read somewhere that GM or someone was developing a conversion kit (gas to electrical) for cars , I read that if done right you could get triple the mileage you get now for the same price.
If gas prices ever hit the 2 dollar mark it would be almost impossible to keep driving cars ( trips , long drives etc ) and propane may be the alternative for many people , specially the ones driving vans , trucks. I am going to ask a few relatives i have in southamerica that are running propane in 4 cilynders to find more details about it
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