newbie larger tire size/engine size performance question
#1
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newbie larger tire size/engine size performance question
hello. i tried looking at the threads first before i asked this..
i am looking at buying my first jeep grand cherokee laredo ,3.7, 2006.
i've been driving blazers for 20 yrs.
i was at some dealers yesterday and the tires on them are 235/65r/17's.
i just didnt like the tires,they were too small. i did see a set on a 07 "limited" that were 245/65r/17's. they were better. they looked alittle wider. i thought the 65 # is the width and the 235 , etc. is the height only ?
the 3.7 jeep is really gonna push me to the max financially and i dont want to get too involved with having to buy other rims . alittle wider and taller is all i need. the sales person didnt know anything about tires. just wanna know my options?
also, if i went alittle bigger, how much would that effect my acceleration with the 3.7....thanks
i am looking at buying my first jeep grand cherokee laredo ,3.7, 2006.
i've been driving blazers for 20 yrs.
i was at some dealers yesterday and the tires on them are 235/65r/17's.
i just didnt like the tires,they were too small. i did see a set on a 07 "limited" that were 245/65r/17's. they were better. they looked alittle wider. i thought the 65 # is the width and the 235 , etc. is the height only ?
the 3.7 jeep is really gonna push me to the max financially and i dont want to get too involved with having to buy other rims . alittle wider and taller is all i need. the sales person didnt know anything about tires. just wanna know my options?
also, if i went alittle bigger, how much would that effect my acceleration with the 3.7....thanks
Last edited by bigsled; 09-20-2009 at 10:56 PM.
#2
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Year: 2004
Model: Grand Cherokee
Engine: 4.7L V8
First let me say Welcome to CF.
The first number is the width, the second is the height of the sidewall in relation to the width in percent. For instance:
1.the 235x65x17=235mm wide and the sidewall is 152.75mm tall
2.the 245x65x17=245mm wide and the sidewall is159.25mm tall
The 3.7 isn't exactly a power dog to start with. I don't think it would affect the performance that much as they're not that much bigger. It will slow down the reading on the speedo a little though. JMO
The first number is the width, the second is the height of the sidewall in relation to the width in percent. For instance:
1.the 235x65x17=235mm wide and the sidewall is 152.75mm tall
2.the 245x65x17=245mm wide and the sidewall is159.25mm tall
The 3.7 isn't exactly a power dog to start with. I don't think it would affect the performance that much as they're not that much bigger. It will slow down the reading on the speedo a little though. JMO
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thanks for the info!!!!!!!!!!!!! i test drove one today. a 65 anniversary 06 , 35,0000 , 3.7.. it had 245's stock with it. it was alittle slow. i would'nt be towing though... it dropped gears to get more power quite often from 0 -45 mph. after that it was pretty good . i wasent stepping on it i cant swing the 4.7 engine. i might still get one just not sure if the gear changing would get annoying . my 4.3 blazer had the ZR2 package with better gearing for the stock 31's so when you gave it gas it had better response....
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Year: 2004
Model: Grand Cherokee
Engine: 4.7L V8
The manual states to keep it dis-engaged in city driving or hilly terrain, and when towing. It changes the shift patterns as well as disabling the OD.
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