3:73s and no tune Ok?
11-13-2004, 06:21 AM
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3:73s and no tune Ok? Hello yall. I am thinking about switching to 3:73 gears. I dont have a tuning device. Will it be ok to 3:73 gears without a tune? Ive been told the speedo will be off. How off will it be? I currently have 3:23 gearing. What else needs to be tuned? If i run this mod without a tune will there be any gains? What is the ups and downs of this mod? Any information will be greatly appreciated. Thank you for your time.
11-13-2004, 01:16 PM
#3
i just had my speedo calibrated today.itll be off about 4-6 MPH.
if you have a stock tune you can buy various programmers to adjust your speedo with.
if not just take it to a shop and theyll do it for about $50- $75.
nothing will be affected otherwise.gas mileage will go down considerably.at least mine did.
if you can get traction 1-2 tenths you should see in the 1/4.
if you have a stock tune you can buy various programmers to adjust your speedo with.
if not just take it to a shop and theyll do it for about $50- $75.
nothing will be affected otherwise.gas mileage will go down considerably.at least mine did.
if you can get traction 1-2 tenths you should see in the 1/4.
11-17-2004, 01:57 AM
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I changed from 3.23 to 3.73 speed was about 8-10 mph off, but under hard acceleration the shift from 2nd to 3rd was sloppy as hell. It’s because the computer uses both the RPM & MPH to judge when to shift. I finally had the computer changed and it shifts fine now.
11-24-2004, 08:44 PM
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I've changed mine with no tune.Speedo is off 6 mph. it shows aprox
6 mph faster than what you are actually running.Can I pick up
some tenths with a hypertech tune? I heard that basically it just
corrected the speedo and gains were negligible.
John
6 mph faster than what you are actually running.Can I pick up
some tenths with a hypertech tune? I heard that basically it just
corrected the speedo and gains were negligible.
John
