Lugging on a motor
#11
Guest
Posts: n/a
Re: Lugging on a motor
RPM...
I run 33's and 3.31 gears and if I use 5th on the highway at 65 mph, my
revs are too low, about 1800 or less and the engine lugs and just drinks
gas.
If I use 4th, I turn 2300 rpm at 65 and the slightest twitch on the gas
pedal is all I need to adjust my power for wind or up hills.
When in 5th, I need almost the whole travel of the gas pedal to do minor
power adjustments, this tells me I am lugging the engine.
Basically if you have the pedal to the metal and aren't increasing speed
at a good rate, you are lugging it and your gas mileage will suck.
I get 19 US mpg highway running in 4th. Put her in 5th mostly for the
same trip and I don't get even 15 mpg.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
William Oliveri wrote:
>
> from this site:
> http://www.sierrajeep.com/detonation.htm
>
> I read this:
> "having miss-matched tire sizes and axle gear ratios can result in the
> lugging of the motor."
>
> I'm running 32" tires with stock gears and a T-5 transmission.
>
> How could I tell if this was a configuration prone to Lugging?
>
> TIA,
>
> bill
I run 33's and 3.31 gears and if I use 5th on the highway at 65 mph, my
revs are too low, about 1800 or less and the engine lugs and just drinks
gas.
If I use 4th, I turn 2300 rpm at 65 and the slightest twitch on the gas
pedal is all I need to adjust my power for wind or up hills.
When in 5th, I need almost the whole travel of the gas pedal to do minor
power adjustments, this tells me I am lugging the engine.
Basically if you have the pedal to the metal and aren't increasing speed
at a good rate, you are lugging it and your gas mileage will suck.
I get 19 US mpg highway running in 4th. Put her in 5th mostly for the
same trip and I don't get even 15 mpg.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
William Oliveri wrote:
>
> from this site:
> http://www.sierrajeep.com/detonation.htm
>
> I read this:
> "having miss-matched tire sizes and axle gear ratios can result in the
> lugging of the motor."
>
> I'm running 32" tires with stock gears and a T-5 transmission.
>
> How could I tell if this was a configuration prone to Lugging?
>
> TIA,
>
> bill
#12
Guest
Posts: n/a
Re: Lugging on a motor
RPM...
I run 33's and 3.31 gears and if I use 5th on the highway at 65 mph, my
revs are too low, about 1800 or less and the engine lugs and just drinks
gas.
If I use 4th, I turn 2300 rpm at 65 and the slightest twitch on the gas
pedal is all I need to adjust my power for wind or up hills.
When in 5th, I need almost the whole travel of the gas pedal to do minor
power adjustments, this tells me I am lugging the engine.
Basically if you have the pedal to the metal and aren't increasing speed
at a good rate, you are lugging it and your gas mileage will suck.
I get 19 US mpg highway running in 4th. Put her in 5th mostly for the
same trip and I don't get even 15 mpg.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
William Oliveri wrote:
>
> from this site:
> http://www.sierrajeep.com/detonation.htm
>
> I read this:
> "having miss-matched tire sizes and axle gear ratios can result in the
> lugging of the motor."
>
> I'm running 32" tires with stock gears and a T-5 transmission.
>
> How could I tell if this was a configuration prone to Lugging?
>
> TIA,
>
> bill
I run 33's and 3.31 gears and if I use 5th on the highway at 65 mph, my
revs are too low, about 1800 or less and the engine lugs and just drinks
gas.
If I use 4th, I turn 2300 rpm at 65 and the slightest twitch on the gas
pedal is all I need to adjust my power for wind or up hills.
When in 5th, I need almost the whole travel of the gas pedal to do minor
power adjustments, this tells me I am lugging the engine.
Basically if you have the pedal to the metal and aren't increasing speed
at a good rate, you are lugging it and your gas mileage will suck.
I get 19 US mpg highway running in 4th. Put her in 5th mostly for the
same trip and I don't get even 15 mpg.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
William Oliveri wrote:
>
> from this site:
> http://www.sierrajeep.com/detonation.htm
>
> I read this:
> "having miss-matched tire sizes and axle gear ratios can result in the
> lugging of the motor."
>
> I'm running 32" tires with stock gears and a T-5 transmission.
>
> How could I tell if this was a configuration prone to Lugging?
>
> TIA,
>
> bill
#13
Guest
Posts: n/a
Re: Lugging on a motor
RPM...
I run 33's and 3.31 gears and if I use 5th on the highway at 65 mph, my
revs are too low, about 1800 or less and the engine lugs and just drinks
gas.
If I use 4th, I turn 2300 rpm at 65 and the slightest twitch on the gas
pedal is all I need to adjust my power for wind or up hills.
When in 5th, I need almost the whole travel of the gas pedal to do minor
power adjustments, this tells me I am lugging the engine.
Basically if you have the pedal to the metal and aren't increasing speed
at a good rate, you are lugging it and your gas mileage will suck.
I get 19 US mpg highway running in 4th. Put her in 5th mostly for the
same trip and I don't get even 15 mpg.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
William Oliveri wrote:
>
> from this site:
> http://www.sierrajeep.com/detonation.htm
>
> I read this:
> "having miss-matched tire sizes and axle gear ratios can result in the
> lugging of the motor."
>
> I'm running 32" tires with stock gears and a T-5 transmission.
>
> How could I tell if this was a configuration prone to Lugging?
>
> TIA,
>
> bill
I run 33's and 3.31 gears and if I use 5th on the highway at 65 mph, my
revs are too low, about 1800 or less and the engine lugs and just drinks
gas.
If I use 4th, I turn 2300 rpm at 65 and the slightest twitch on the gas
pedal is all I need to adjust my power for wind or up hills.
When in 5th, I need almost the whole travel of the gas pedal to do minor
power adjustments, this tells me I am lugging the engine.
Basically if you have the pedal to the metal and aren't increasing speed
at a good rate, you are lugging it and your gas mileage will suck.
I get 19 US mpg highway running in 4th. Put her in 5th mostly for the
same trip and I don't get even 15 mpg.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
William Oliveri wrote:
>
> from this site:
> http://www.sierrajeep.com/detonation.htm
>
> I read this:
> "having miss-matched tire sizes and axle gear ratios can result in the
> lugging of the motor."
>
> I'm running 32" tires with stock gears and a T-5 transmission.
>
> How could I tell if this was a configuration prone to Lugging?
>
> TIA,
>
> bill
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