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Old 08-30-2013, 12:24 PM   #61
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4 Sport
5 speed
3.73 Dana 44
Goodyear Wrangler MR/T 31 x 15's

5th gear runs between 19k - 19.5 rpm at 60.

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Old 08-30-2013, 05:35 PM   #62
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Quote:
Originally Posted by lindel View Post
Corvette engine.
That's not a typo? LOL! So he was able to wedge what? A 427-428cid in there? LOL! Pics or vids on that build? Preferably a vid with it runnin down the road.

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Old 08-30-2013, 07:29 PM   #63
Knows a couple things...

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I finally remembered to look at my tach tonight while driving 60 mph... my TJ was lugging at around 2050 to perhaps 2100 RPMs.

That is with the 4-speed 42RLE automatic, 4.88 gears, and 35" tires... which is why I always recommend no less than 5.13 and, better, 5.38 if you are running that transmission and 35" tires.

The engine was lugging so bad at 60 mph I had to turn the Overdrive off.
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Old 08-30-2013, 07:37 PM   #64
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I currently have a 3" lift running 33x12.50. 4.0l auto with 3.73 in my '04 and I run about 1900 at 60-65 with O/D off. With it on its right about 3k. My jeep struggles to maintain 65 on the hwy unless O/D is off pushing 3k rpm. With it off it will kick down a gear to get to the needed speed, 65-70, but wont shift until i come off the gas which in turn slows me back down to under 60. Normal or unusual? Kills the already piss poor mpgs jeeps get.
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Old 08-30-2013, 09:22 PM   #65
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97 SE
5 speed manual
Stock 4.10s
33x12.50x15
No matter how hard I try I can't get my tach to reach 60 but my 50mph is just under 60 on GPS at around 2500-2700 rpms in fourth depending on wind and inclineimes I forget I have a 5 speed because all I use is 4.
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Old 10-12-2013, 08:49 PM   #66
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'03 TJ
4.0
Automatic
3.73s
31x10.50x15s
1900 @ 60 mph

At 60 mph, I still have plenty of pedal left.
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Old 10-12-2013, 09:51 PM   #67
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00 TJ
4.0 L
3 Speed Tranny
4.10 gearing
35" tires
Rolls 2500 RPM at 60 MPH
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Old 10-13-2013, 12:29 AM   #68
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2004 LJ 1850 Rpm
4.0 with 42RLE trans
4.88 Gears
35" Goodyear MTRs
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Old 10-14-2013, 08:35 AM   #69
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05 TJ Sport
31*10.5*15
6spd manual
~2200rpm at indicated 60mph
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Old 10-14-2013, 01:47 PM   #70
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I'll try to remember to slow down a lot on my way home to get those numbers. LOL
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Old 10-14-2013, 08:44 PM   #71
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Hmmm, won't let me edit. I was just shy of 2,000 RPMs at 60. Don't remember what it was at 80. Auto, 3.73 gear ratio
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Old 10-15-2013, 11:32 AM   #72
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Quote:
Originally Posted by redneckpunk View Post
hmmm, won't let me edit. I was just shy of 2,000 rpms at 60. Don't remember what it was at 80. Auto, 3.73 gear ratio
4.0????
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Old 10-15-2013, 11:43 AM   #73
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Originally Posted by tsteb View Post
4.0????
Yuppers. All LJs come with a 4.0 (I believe). Also 80 was just a hair over 2,200 RPMs. (I only do 80 on the highway) This is also with 31s.
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Old 10-16-2013, 11:05 AM   #74
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Quote:
Originally Posted by redneckpunk View Post
Yuppers. All LJs come with a 4.0 (I believe). Also 80 was just a hair over 2,200 RPMs. (I only do 80 on the highway) This is also with 31s.
I wish I could do that haha. Damn 2.5.....

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