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Unread 10-31-2014, 06:13 PM   #1
Joeybsmooth
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2005 WK 
 
Join Date: Oct 2009
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When do you change gears ?

I now this is really a silly question, but...when you are changing gears manually at what speed do you change from one to another.

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Unread 10-31-2014, 07:46 PM   #2
90grandoneer
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It depends what you're trying to achieve. Are you talking light throttle, medium throttle or full throttle? Are you talking about all out racing, or ??? Generally, the stock shift schedules are set too low, IMO. With your Hemi you'd normally want to get the RPM up a little more (light throttle) before you shift it. Same with medium throttle. Your full throttle upshifts (with the stock cam) should be somewhere around 5600-5800 RPM. Above that your power starts falling off fast. I use the Superchips Advanced Transmission Tuning Application and have most of my light throttle upshifts to occur at about 2300 RPM, and as the throttle is advanced the RPM goes higher before upshifts. My 4-5 upshift occurs at about 2400-2500 RPM, or around 70 mph. All of these settings allow for much more MDS "on" time and, for me, better fuel economy. With my mods., on the highway, I mostly drive in 4th gear (usually 63-68 mph).....2100-2400 RPM. Wide open throttle upshifts on mine are set to 6200 RPM with the rev. limiter set at 6500 RPM. My downshifts are also quite sensitive to throttle opening. I have it set so it takes very little more throttle application to make it downshift to the next lower gear. My goal here is to keep the engine from lugging and getting too far below the torque range.
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Unread 11-01-2014, 02:05 AM   #3
patience
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Only manually change gears when in low range.
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Unread 11-01-2014, 06:56 AM   #4
JeepN4KC
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Quote:
Originally Posted by patience View Post
Only manually change gears when in low range.
^^^ Wrong.

Where are you getting this information?
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Unread 11-02-2014, 12:17 AM   #5
patience
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Quote:
Originally Posted by JeepN4KC View Post
^^^ Wrong.

Where are you getting this information?
Yeah sorry about that princess, I should have put 'I' at the start of my sentence , but I was answering the thread title directly.
Got my information from page 276 & 277 of my owners manual, you know that book in the glove compartment .
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Unread 11-02-2014, 07:43 AM   #6
JeepN4KC
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Quote:
Originally Posted by patience View Post

Yeah sorry about that princess, I should have put 'I' at the start of my sentence , but I was answering the thread title directly.
Got my information from page 276 & 277 of my owners manual, you know that book in the glove compartment .
I'm very aware of the owners manual and then some. Your post puts you in the category of folks that come and go and get little respect. You will clearly never contribute to this forum or the Jeep community so how about you crawl back to where you came from.
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My Build Thread WK
My Other Build Thread XJ
'01 XJ with some stuff
Sept 2013 Cherokee of the Month
'07 WK with some other stuff
~RED WK CLUB #7~
'11 KK with mostly stock stuff
'06WK our first Jeep with stock stuff - totalled and gone
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Unread 11-02-2014, 10:04 AM   #7
Red_liner740
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I find my CRD unnecessarily holds 4th when it could shift to 5th on level ground. I usually manually shift it to 5th. Did people know that even if you're in D it will up shift on command as long as you're above a certain rpm (1500 on CRDs)?
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Unread 11-09-2014, 05:11 AM   #8
Craigyfm
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Could be a fluid issue, try changing the transmission fluid and filters. You'd be amazed the difference it makes. Really simple and there's videos on you tube if your a novice. Good luck
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