very high rpms
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Senior User
Joined: Feb 2008
Posts: 137
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very high rpms
hey guys im running super high rpm when i gun it it red lines quick and idk if it shifting right
i have a 6 inch lift with 37 toyos i really started to notice it the last two months when i put the new tires on before had some 33 mickeys
i want to make sure its running right before i get the dp tuner and stuff
so im wondering if i can get any help with what i should do thanks guys
i have a 6 inch lift with 37 toyos i really started to notice it the last two months when i put the new tires on before had some 33 mickeys
i want to make sure its running right before i get the dp tuner and stuff
so im wondering if i can get any help with what i should do thanks guys
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
I don't know anything about the autos, but did you get the speedo recalibrated for the new tires? Could the taller tires be causing the PCM to delay shifting based on TSS & OSS readings that are now slower for the indicated speed?
Please ignore me if I'm way off base here.
Please ignore me if I'm way off base here.
Post Fiend
Joined: Jul 2005
Posts: 14,582
Likes: 12
From: 21791
If the speedometer is not corrected you will have alot of problems on your hands, the truck isn't actually shifting at the correct time, it throws the RPM out of whack when it should change, etc. I have a Superlift Truspeed and love it, it's adjustable for any tire/gear size and it has two presets you can easily flip with a switch.
Post Fiend
Joined: Jul 2005
Posts: 14,582
Likes: 12
From: 21791
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Senior User
Joined: Feb 2008
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yes i no it would be wrong if not corrected but couldn't the tire shop set it to the correct speed or no
and if i need to do it myself whats a good site for the tru speed thing thanks
and if i need to do it myself whats a good site for the tru speed thing thanks
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Post Fiend
Joined: Jun 2006
Posts: 9,714
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From: White Mnt's,New Hampshire
AE with the 6.1 up date will recalibrate up to 40" i have heard of people doing up to 37 so far and the speedo is now right on using GPS...there are a lot of guy's on here from Texas with AE..maybe one of them wouldnt mind making a couple of bucks...