yup another race jeep build 1997 xj
05-26-2016, 04:28 PM
#61
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Join Date: Dec 2011
Location: PA KOTUFU!
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Year: 1998
Engine: 4.0L 162,000
Check your speedo mph and GPS mph. What is the difference?
With the low profile tires your speedo will read higher than actual GPS speed. YOu need to correct the speedo gear to get within 1-3% difference. Only then will your trans shift come close to functioning correctly.
You need a different speedo gear. Probably 2 numbers bigger.
With the low profile tires your speedo will read higher than actual GPS speed. YOu need to correct the speedo gear to get within 1-3% difference. Only then will your trans shift come close to functioning correctly.
You need a different speedo gear. Probably 2 numbers bigger.
05-27-2016, 03:30 PM
#64
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Location: Tuscola Il
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Year: 1997
Model: Cherokee
Engine: 4.0
How would the jeep know that though? It can't tell how tall the tires are. I can't think of how tire height could affect anything other than the speedo reading a percentage higher.
05-30-2016, 08:48 PM
#65
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Not sure how it works but it does.
05-31-2016, 05:15 PM
#66
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Year: 1997
Model: Cherokee
Engine: 4.0
hmmmm, alright. It's got 26 inch tires on it now but i plan to go to a 28" so ill leave it alone for now. I took a video last night. You can see what its doing on the 1-2 shift in it.
06-04-2016, 08:57 PM
#67
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Year: 1997
Model: Cherokee
Engine: 4.0
Jeep ran 9.69 at 71.5mph in the 1/8th. Gonna use a rotary switch to manually shift the trans to see if that helps. Need to weld wideband bung on too. Really want to do a 2.5 inch front exhaust pipe but can't find one. Probably needs to be custom i guess.
02-02-2017, 06:50 AM
#71
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Year: 1997
Model: Cherokee
Engine: 99 4.0
do you still have the jeep? still planning LS? your rev issue is definitely trans and TCM related, but I dont want to get too much farther into it if the jeep is gone, or motor is pulled.
02-03-2017, 04:43 AM
#72
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Year: 1997
Model: Cherokee
Engine: 4.0
Yep I still have. The motor and supercharger are long gone though. Currently building the motor and getting the engine bay ready for paint. Thanks for offering your help though.
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