Driving in 3 or D on the highway?
07-23-2012, 04:48 PM
#16
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07-23-2012, 04:59 PM
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07-23-2012, 06:07 PM
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Year: 2001
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A couple of things: to start, the recommended tire for an xj is a 215 (at least on my '01). Second, the faster you go, the more the speedometer is off. If my speedo says 70, I'm really doing 80. Not the other way around where the speedo is fast. The speedo is slow compared to the tires. I radar tested this. When my speedo says 40, I'm doing 42-43. When it says 60, I'm doing 65. And as I mentioned, speedo says 70, I'm doing 79-80. This all on 33's.
Last edited by cf1k1; 07-23-2012 at 06:10 PM.
07-23-2012, 06:12 PM
#20
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Originally Posted by Gee oh Dee
The torque converter locks in 3rd and 4th iirc....
So you'll send cash on lockers but your not gonna regear? Seems backwards...but to each his own. If you want to ignore the advice of the experienced, intelligent folks out there go right ahead.
So you'll send cash on lockers but your not gonna regear? Seems backwards...but to each his own. If you want to ignore the advice of the experienced, intelligent folks out there go right ahead.
07-23-2012, 06:13 PM
#21
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Originally Posted by cf1k1
A couple of things: to start, the recommended tire for an xj is a 215 (at least on my '01). Second, the faster you go, the more the speedometer is off. If my speedo says 70, I'm really doing 80. Not the other way around where the speedo is fast. The speedo is slow compared to the tires. I radar tested this. When my speedo says 40, I'm doing 42-43. When it says 60, I'm doing 65. And as I mentioned, speedo says 70, I'm doing 79-80. This all on 33's.
07-23-2012, 06:30 PM
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Year: 2001
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Engine: I-6 4.0 L
Originally Posted by bighouts5591
That's about how mine is. I'll be about 5mph off in the 50-65 mph area. Radar tested, and I never go over 65-70 in my jeep. No point to it
Originally Posted by Gee oh Dee
Its not the power, power isn't everything. Its the gear reduction to keep speed as absolutely low as possible. Finesse, not power.
07-23-2012, 09:27 PM
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Year: 1995
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Engine: 2.5 4 cyl.
A couple of things: to start, the recommended tire for an xj is a 215 (at least on my '01). Second, the faster you go, the more the speedometer is off. If my speedo says 70, I'm really doing 80. Not the other way around where the speedo is fast. The speedo is slow compared to the tires. I radar tested this. When my speedo says 40, I'm doing 42-43. When it says 60, I'm doing 65. And as I mentioned, speedo says 70, I'm doing 79-80. This all on 33's.
http://www.offroadreport.com/speedometer_accuracy.htmlSpeedo calc.
http://www.crawlpedia.com/tire_size_converter.htmstandard/metric converter
Last edited by xj_maniac_newb; 07-23-2012 at 09:40 PM.
07-23-2012, 09:50 PM
#27
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Not to burst your bubble, but if your speedo is reading 60 when your going 65, then your speedo gear has been changed. The math doesnt lie
http://www.offroadreport.com/speedometer_accuracy.htmlSpeedo calc.
http://www.crawlpedia.com/tire_size_converter.htmstandard/metric converter
http://www.offroadreport.com/speedometer_accuracy.htmlSpeedo calc.
http://www.crawlpedia.com/tire_size_converter.htmstandard/metric converter
Last edited by cf1k1; 07-23-2012 at 10:22 PM.
07-23-2012, 10:10 PM
#28
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Mine is the same way, and I can 100% guarantee you its the stock speedo gear, so you can take your math and shove it
07-23-2012, 10:21 PM
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Did you buy the jeep new? right off the lot? Im on 31's, and my speedo is the same as yours on 33's.. So either your jeep is magic, or the speedo gear has been changed.
