Pardon my stupidity

[skinnyga]

My friend drives a late model Intreped. He just changed from 15" to 18" rims. Now his speedometer is wrong, and he really has to press the accelerator to get the car going?
Is this standard?? I am a stock rim kid so I can't help him...but I know everyone on here is an expert so I know you all can help.

Thanks

[Alan®]

how far is it off 1-3mph isnt a big deal but depending on the weight of them I'm not surprised his brakes will also take a beating

[aaronfelipe]

Moved,




It is normal that the car takes more gas to go and brakes to stop because there is more mass spinning. More mass= more momentum. It is also normal that the speedo is off if he has the wrong size tire.

[speedminded]

What size tire is he running now? Then what is the stock size or what year Inteprid so it can be looked up...

[Sammich]

go somewhere to get it calibrated

[AnthonyF]

My friend drives a late model Intreped. He just changed from 15" to 18" rims. Now his speedometer is wrong, and he really has to press the accelerator to get the car going?
Is this standard?? I am a stock rim kid so I can't help him...but I know everyone on here is an expert so I know you all can help.

Thanks

Dodges are known for this. But the good thing is the Dodge computer will allow you to change that. He can go to the local dodge dealership or mechanic and get them to change that. we've had to do it a few times at my shop.

[SicStang03]

who cares.. If the speedo and odo are not corrected you will get less miles reported to the comp.. In return the car will hold value

[speedminded]

who cares.. If the speedo and odo are not corrected you will get less miles reported to the comp.. In return the car will hold valueLOL, unless you're stashing 50% of your paycheck every week in the trunk and maybe a gold bar or two an Intrepid will never hold its value :tongue: