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uphill speed? |
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oldmansimek 
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Joined: 23 Apr. 2019 Location: CT Status: Offline Points: 177 |
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 Topic: uphill speed?Posted: 03 June 2019 at 7:00pm |
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What speeds are you guys able to sustain uphill with a stock 2a?
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Bruce W
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Joined: 29 July 2005 Location: Northeast Colorado Status: Online Points: 9651 |
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Posted: 03 June 2019 at 7:14pm |
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Well, I guess that depends on the hill. BW
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It is NOT a Jeep Willys! It is a Willys jeep.
Happy Trails! Good-bye, Good Luck, and May the Good Lord Take a Likin' to You! We Have Miles to Jeep, Before We Sleep. |
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Rick R
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Posted: 03 June 2019 at 7:17pm |
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I always leave yesterday if I want to get there today if there is a lot of uphill involved🙁
Space R
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RWILLYS (Space R)
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ggordon49
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Posted: 03 June 2019 at 7:21pm |
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Steep hill (paved surface) = second gear, slow.... I have never had to completely stop mid-hill to downshift to first.
Edited by ggordon49 - 03 June 2019 at 7:24pm |
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- Don't Let The Fatherless Ones Grind You Down -
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Lee MN
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Posted: 03 June 2019 at 11:35pm |
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I drove mine up Pikes Peak a few years back, I was able to maintain the posted speed limit!
 Lee 
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LEE
44 GPW-The Perfected Willys 49 2A “If you wait, you only get older” 67 M715 American Made Rolling History |
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oldmansimek
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Joined: 23 Apr. 2019 Location: CT Status: Offline Points: 177 |
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Posted: 04 June 2019 at 11:53am |
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I guess I should have been a little more specific. If your cruising along at say 45-50 mph (3rd gear obviously) and come to a long uphill grade what speed are you dropping down to. I can stay in 3rd unless the hill is very steep but I am down to about 30-35mph.
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JeepSaffer
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Posted: 04 June 2019 at 3:19pm |
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I think to get meaningful answers you would also have to define the steepness of the hill. What is the grade?
Otherwise all you are going to get are anecdotal answers that may or may not relate to your experience. Just sayin'...
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1948 CJ2A #204853 in South Africa
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oldtime
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Posted: 04 June 2019 at 3:31pm |
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My last daily driver Jeep was a strong running (standard) F-134.
Was set up with 5.38's and 25% O.D. On the interstate I like to cruise it about 63 MPH. When I got to some fairly steep interstate grades here in Mo. I was lucky to maintain 55 MPH at best. I'm talking I-44 just west of Rolla, Mo where I-44 grades are at their steepest here in Missouri. Not sure of the specific grade but its well below 5% and not like climbing mount Monteagle over in east TN.
Edited by oldtime - 05 June 2019 at 12:26am |
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Currently building my final F-134 powered 3B .
T98-A Rock Crawler using exclusive factory parts and Approved Special Equipment from the Willys Motors era (1953-1963) Zero aftermarket parts |
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oldmansimek
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Posted: 04 June 2019 at 7:39pm |
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roughly 6% grade
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Ol' Unreliable
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Posted: 05 June 2019 at 3:50am |
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I think you're about as good as you're gonna get with 30-35 mph on a 6% grade, if it's a long one. A normal Go-Devil just hasn't got the guts to do a lot more.
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There's a reason it's called Ol' Unreliable
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Bruce W
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Posted: 05 June 2019 at 4:49am |
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In Connecticut, maybe. Probably not in Colorado.
But, you see, there's another variable. BW
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It is NOT a Jeep Willys! It is a Willys jeep.
Happy Trails! Good-bye, Good Luck, and May the Good Lord Take a Likin' to You! We Have Miles to Jeep, Before We Sleep. |
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67charger
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Posted: 05 June 2019 at 11:59am |
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If its running smooth and not studdering or smoking going up the hill, thats probably what the engine has in it. If its doing the above then maybe you should investigate.
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JeepSaffer
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Posted: 05 June 2019 at 3:33pm |
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Within the next 6 months I plan to have finished my project and be using the 2A to get to work and back. I only live about 10km from work.... but there is a big elevation difference, 500m, with one monster hill. Average grade on the hill works out to about 9%, but the steepest parts are 16-17%. So this thread is not making good reading for me
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1948 CJ2A #204853 in South Africa
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oldtime
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Posted: 05 June 2019 at 3:48pm |
Yea well that makes sense. A normal L-134 should be able to lug down to 2000 RPM on a steep grade. 2000 RPM is the crankshaft velocity yielding maximum torque output for the Go Devils. At higher than 2000 RPM's the max torque output falls off slowly. At lower than 2000 RPM's the max torque falls of more quickly. On steep grades when RPM drops below 2000 RPM (31 MPH for the standard drivetrain) it's then time to to drop down into 2nd gear to get the RPM up and keep the torque output from falling off as the demand for HP increases. It's often referred to as the engine POWER BAND.
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Currently building my final F-134 powered 3B .
T98-A Rock Crawler using exclusive factory parts and Approved Special Equipment from the Willys Motors era (1953-1963) Zero aftermarket parts |
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oldmansimek
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Posted: 06 June 2019 at 11:22am |
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Thanks guys I just wanted to make sure. She only has 15,500 miles, I checked compression 110 on all 4 I checked this three times (because I didn't believe it) with my old and brand new screw on snap-on compression tester. Previous owner messed up a few things so I had to fix a lot of stuff, just wanted to make sure I didn't do something wrong but she runs beautiful and no smoke.
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elawson
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Joined: 03 Apr. 2011 Location: Arizona, USA Status: Offline Points: 31 |
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Posted: 09 June 2019 at 5:55am |
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My CJ3A has the 4L-134 , 5.38:1 axle gears and 6.00X16 NDT tires. Going north on Arizona Interstate 17 on the way to Sunset point is a 6% grade, 6 mile long hill with a beginning elevation of about (I'm guessing) 2,000 feet. I'm in 2nd gear on the hill. If it's :cool" enough (below 110F/43C) I can do about 35 mph and keep the engine engine temperature below about 245F. If it's hotter than that, I'll slow down to about 30mph. |
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oldmansimek
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Posted: 14 June 2019 at 11:32am |
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Well finally got my new speedometer cable and lubed the speedo she is doing even better then I thought uphill, speedo was kind of sticking in weird places before. Roughly 6% grade I can hold just over 35 in 3rd when she is warmed up. Thanks guys for all the input
elawson I truly miss Arizona. I should have posted a picture before but here she is  |
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JeepFever
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Posted: 14 June 2019 at 11:46am |
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Love the look of that Jeep! Sounds like it is running good too.
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