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#1
03-27-2005, 09:42 PM
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gas milage....help?
im a newbie to this forum so pardon any stupid q's. my uncle has a 1990 240sx. he gets a lousy 22mpg. this seems pretty lousy for a sohc 4 cylinder. we both dont have a clue why it is doing this. he just had a problem with the seals on one of the injectors. [leaking] he fixed it, but it still didnt fix the milage problem. i was wondering if any one of you 240sx guys have any idea what the problem is. is this a common problem? i dunno much about the 240sx. any help would be great. and if i get it fixed he just might cut me a deal on it
 Thanks
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#3
03-27-2005, 10:14 PM
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Re: gas milage....help?
stole the words right out of my mouth.
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#4
03-27-2005, 11:13 PM
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Re: gas milage....help?
I have a 90' 240sx w/ mods. The best gas milage i get is 25 MPG. You have to remember its a big 2.4L in a RWD car. They are by far an economical car! + They are fast so who cares.
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1989 civic DX with LS swap 94 B18B Engine Stage III Six Puck Clutch OBD-1 Conversion OBX Altenater pulley DC Sport Header Tsudo 2.5" catback exhaust Short throw shifter Apexi Rev/Speed Meter MUCH MORE TO COME! 1990 240sx w/ SR20DET SWAP COMING SOON! All Brand new inteior All body work is done 3" SR20Det downpipe Apexi N1 Catback Exhaust 3" 3" Test pipe Apexi Rev/speed meter
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#7
03-28-2005, 12:24 PM
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Re: gas milage....help?
'pushing' the car takes more work then 'pulling'... when you accelerate the weight shifts back and it is good for traction but that in turn puts more strain on the engine. Also to convert/transport the crank work back to the rear tires will waste more energy via the driveshaft and differential... as opposed to a direct FF layout. You have to remember NOTHING man-made runs at 100% efficiency.
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1993 RMS13 5MT KA
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#8
03-28-2005, 01:18 PM
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Re: gas milage....help?
nice one shift Ka24de.
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"A good driver is measured not by his lap times, but by the amount of time he spend trying to make sense of his car" E.K.
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#9
03-28-2005, 02:10 PM
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yeah but are you really gonna say well im only getting 22 mpg, BUT i do have to turn a driveshaft that is 5 feet long so yeah that does sound about right, if my car was FF i would expect about 23...im guessing the FF vs FR layout gives maybe +/- 1 or 2 mpg.
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 "I got that hustle in my genes like high blood pressure" -E-40
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