my RPM's high??
04-25-2008, 10:37 AM
#1
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Join Date: Jan 2005
Posts: 60
my RPM's high??
96 5 sp- So heres the deal about a week ago i had a rough idle due to a bank 3 misfireso i replaced the knock sensor (that sucked!), pvc valve, simply cleaned the spark plugs, sprayed down the maf with cnc and replaced the serpentine belt i recently noticed my rpms seem high? is 80 at about 3500 normal? btw My cel light is still on, but no rough idle and it seems to drive fine.
Last edited by flyby; 04-26-2008 at 07:21 AM. Reason: ch
04-25-2008, 04:29 PM
#2
So heres the deal about a week ago i had a rough idle due to a 3 bank misfireso i replaced the knock sensor (that sucked!), pvc valve, simply cleaned the spark plugs, sprayed down the maf with cnc and replaced the serpentine belt i recently noticed my rpms seem high? is 80 at about 3500 normal? btw My cel light is still on, but no rough idle and it seems to drive fine.
04-25-2008, 04:51 PM
#4
My thoughts:
http://forums.maxima.org/showpost.ph...95&postcount=3
http://forums.maxima.org/showpost.ph...42&postcount=4
Unless your tranny is fried / slipping, I still stand by my above links.
04-25-2008, 04:56 PM
#5
04-25-2008, 07:32 PM
#9
04-26-2008, 07:18 AM
#12
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Join Date: Jan 2005
Posts: 60
btw im a 96 5speed and i was asking because before i did all that i remember my rpms being a tadbit lower but my car was running like **** for a while soO thanx for the input ........im reminded of a famous song sang by an elequent jackie chan and chris tucker and it goes a lil something like this.. . WAR ha what is it good for absolutely nothing say it AGAIN! VIVA LA
04-30-2008, 05:03 PM
#20
is going on here
04-30-2008, 05:10 PM
#21
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Join Date: Aug 2006
Location: Portsmouth, NH
Posts: 24
BTW, I CAN WRITE IN CAPS, TOO
04-30-2008, 05:20 PM
#22
BTW, I CAN WRITE IN CAPS, TOO
04-30-2008, 05:26 PM
#23
So he's a 5MT, what's the difference aside from a few RPM? It's still a mechanical relation so I still stand by my statement. The only amendment is that instead of the tranny slipping, we will say clutch slipping, other than that, it's the same, so what's the point of this thread?
04-30-2008, 05:29 PM
#24
So he's a 5MT, what's the difference aside from a few RPM? It's still a mechanical relation so I still stand by my statement. The only amendment is that instead of the tranny slipping, we will say clutch slipping, other than that, it's the same, so what's the point of this thread?
Last edited by MorpheusZero; 04-30-2008 at 05:34 PM.
This is one of the only vehicles where the EPA rated the 5MT LESS than the 4AT on highway MPG ZOMG, this is why. 
04-30-2008, 05:39 PM
#26
I suppose... as long as we note that the 5MT has passing power in top gear and the VQ is smooth and robust enough that it could sit at 4k all day long and no one would notice..
04-30-2008, 05:39 PM
#27
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Join Date: Aug 2006
Location: Portsmouth, NH
Posts: 24
There's a lot of slamming going on here, so I think I should clear something up...
A transmission type alone doesn't necessarily have a significant effect on the relationship between the engine RPMs and speed. What matters is final gear ratio.
Now that that is said, can't we all be friends?
A transmission type alone doesn't necessarily have a significant effect on the relationship between the engine RPMs and speed. What matters is final gear ratio.
Now that that is said, can't we all be friends?
04-30-2008, 05:46 PM
#28
There's a lot of slamming going on here, so I think I should clear something up...
A transmission type alone doesn't necessarily have a significant effect on the relationship between the engine RPMs and speed. What matters is final gear ratio.
Now that that is said, can't we all be friends?
A transmission type alone doesn't necessarily have a significant effect on the relationship between the engine RPMs and speed. What matters is final gear ratio.
Now that that is said, can't we all be friends?
We are aware of this man.
04-30-2008, 10:30 PM
#32
1.) It is your gearing, as nmexmax said, nothing will change. Unless you physically alter the gears in your transmission, you will always turn the same RPM at a given indicated speed.
2.) Automatic transmissions are commonly geared taller than manuals and that is why automatic maximas turn less RPM at the same speed as a manual. I don't know why they do that, considering a manual doesn't have the same parasitic losses as an automatic, meaning in theory you should be able to to run even taller gearing than the auto, but whatever.
That would be sweet if we could turn like 2500RPM at 80. That would be wonderful gas mileage. Oh well.
Not in top gear you're not, if so thats some NASTY slippage goin on.
2.) Automatic transmissions are commonly geared taller than manuals and that is why automatic maximas turn less RPM at the same speed as a manual. I don't know why they do that, considering a manual doesn't have the same parasitic losses as an automatic, meaning in theory you should be able to to run even taller gearing than the auto, but whatever.
That would be sweet if we could turn like 2500RPM at 80. That would be wonderful gas mileage. Oh well.Not in top gear you're not, if so thats some NASTY slippage goin on.
04-30-2008, 11:17 PM
#33
1.) It is your gearing, as nmexmax said, nothing will change. Unless you physically alter the gears in your transmission, you will always turn the same RPM at a given indicated speed.
2.) Automatic transmissions are commonly geared taller than manuals and that is why automatic maximas turn less RPM at the same speed as a manual. I don't know why they do that, considering a manual doesn't have the same parasitic losses as an automatic, meaning in theory you should be able to to run even taller gearing than the auto, but whatever. That would be sweet if we could turn like 2500RPM at 80. That would be wonderful gas mileage. Oh well.
2.) Automatic transmissions are commonly geared taller than manuals and that is why automatic maximas turn less RPM at the same speed as a manual. I don't know why they do that, considering a manual doesn't have the same parasitic losses as an automatic, meaning in theory you should be able to to run even taller gearing than the auto, but whatever.
That would be sweet if we could turn like 2500RPM at 80. That would be wonderful gas mileage. Oh well.1) Autos of the previous century typically have one or two less gears than a manual. If they had a shorter first gear than a manual then the gearing would be really far apart which would lead to even worse acceleration at speed.
2) Autos of said era tend to focus more on luxury where manuals focus more on performance. Turning over ~2500rpm on the freeway is considered a lot more luxurious than turning over ~3300. The manual is geared shorter because people driving a stick will generally be more tolerant of that sort of thing (partially for reason #3).
3) It's important to have a usable top gear in a manual, since people are lazy and don't want to downshift every time they have to pass someone. With an auto you just go into kickdown, the torque converter unlocks and the transmission downshifts seamlessly for you, so the cruising gear need not be as usable as with a manual.
4) You want to turn over 2500rpm at 80? Do a 6 speed swap.
Not in top gear you're not, if so thats some NASTY slippage goin on.
yeah pmohr you're not joking or anything are you? 
01-18-2009, 06:26 PM
#37
with the overdrive on, my 95 auto can sit at 2500 going 80 no problem...seems normal to me....but my gas milage is still $hit...i do have an EGR Solenoid ECU code tho, maybe thats doing it to me...
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