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Old 01-31-2013, 12:03 AM   #1
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Getting better highway speed

I have a 15 mile commute to down town everyday and I was looking to see if I could get more power out of my 4 cylinder it's just having trouble! Will standard bolt on stuff (CAI, throttle body's, car back exhuast) anything like that?

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Old 01-31-2013, 12:15 AM   #2
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Throttle body spacers*

Any help would be appreciated thanks!

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Old 01-31-2013, 12:21 AM   #3
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You will be waiting your money on any and all of that stuff. What size tires are you running?? If you are larger than stock then re-gearing is your only and best option other than an engine swap or selling and buying a wrangler w the 4.0


*waisting, not waiting.
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Old 01-31-2013, 12:22 AM   #4
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Quote:
Originally Posted by easley15 View Post
Throttle body spacers*

Any help would be appreciated thanks!
A throttle body spacer is just going fo waste your money and time don't get one been there done that one...
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Old 01-31-2013, 12:31 AM   #5
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If you want power or MPGs, a 4 cylinder Jeep is not for you. There's no way around it.
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Old 01-31-2013, 01:18 AM   #6
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If you want power or MPGs, a 4 cylinder Jeep is not for you. There's no way around it.
I would have thought 4 banger be better on gas.
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Old 01-31-2013, 01:39 AM   #7
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I would have thought 4 banger be better on gas.
There is literally nothing better about the 4 cylinder than the 6 cylinder.
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Old 01-31-2013, 01:52 AM   #8
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Then why offer a weak motor. Lol
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Old 01-31-2013, 02:01 AM   #9
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it is cheaper. that's about the only benefit. oh, ive actually also heard that it being lighter helps with some offroading situations too
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Old 01-31-2013, 03:07 AM   #10
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Quote:
Originally Posted by 00tj2
You will be waiting your money on any and all of that stuff. What size tires are you running?? If you are larger than stock then re-gearing is your only and best option other than an engine swap or selling and buying a wrangler w the 4.0

*waisting, not waiting.
*wasting, not waisting.
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Old 01-31-2013, 07:13 AM   #11
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If you want power or MPGs, a 4 cylinder Jeep is not for you. There's no way around it.
This would apply to any TJ, regardless of engine size. OP, just enjoy the Jeep or maybe get a beater Honda for work.
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Old 01-31-2013, 07:18 AM   #12
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*wasting, not waisting.
Lol beet me too it.....
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Old 01-31-2013, 07:25 AM   #13
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Not that it's much better but I average a solid 18mpg in my 4 banger. I'd like to see a 4.0 get 18.
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Old 01-31-2013, 07:32 AM   #14
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I averaged 17.3mpg with a six cyclinder 33inch tires 4:10 gears with correct spedo gear
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Old 01-31-2013, 08:26 AM   #15
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Yeah I figured I just thought I would ask. I can't spend that much money for re gearing or engine swap.
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Old 01-31-2013, 08:50 AM   #16
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Ive owned to 4cyl...they arent fast...dont try to make them fast...they, like the 6, are reliable and nice for around town but when it comes to highway the only way to make the 4 better is by adding a 6.
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Old 01-31-2013, 09:00 AM   #17
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the only way to make the 4 better is by adding a 6.
Yes!!!! I have always wanted a 10cyl viper motor in my jeep too!!!!!!! That will beat everything....
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Old 01-31-2013, 11:45 AM   #18
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Not that it's much better but I average a solid 18mpg in my 4 banger. I'd like to see a 4.0 get 18.
4.0:when i was stock no lift and on 30s, 18 was my average. if i did a long haul on highway i PR'd at 21. the 4 cylinder is too small for a 4500lb vehicle to make it a gas saver
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Old 01-31-2013, 12:27 PM   #19
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I averaged 17.3mpg with a six cyclinder 33inch tires 4:10 gears with correct spedo gear
Seeing as how 4.10 is under geared for 33's I highly doubt that.
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Old 01-31-2013, 12:31 PM   #20
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Seeing as how 4.10 is under geared for 33's I highly doubt that.
Actually 4.10 gears is perfect for the 4.0L motor it is what the Rubicons come with stock and they also came with 32s as well...

4.56 would be good for 35 if you have a standard or 4.88 with a automatic...

Why do you give out information when your giving out misinformation????
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Old 01-31-2013, 12:45 PM   #21
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Because you are the one that is wrong my friend. Do some research 4.10 is not ideal for 33's. it's not ideal for either an auto or manual.
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Old 01-31-2013, 12:49 PM   #22
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If you want to run 33's with the 4.0 you are going to want 4.56 with a stick or 4.88 with an auto. Period.
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Old 01-31-2013, 12:51 PM   #23
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If you want to run 33's with the 4.0 you are going to want 4.56 with a stick or 4.88 with an auto. Period.
I am a ase tech and and work on jeeps all day but ok you must be a expert lmao!!!!!
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Old 01-31-2013, 12:59 PM   #24
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Well I feel sorry for anyone who takes your advise then. Seeing as how you can't even properly gear a jeep.
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Old 01-31-2013, 01:20 PM   #25
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Well I feel sorry for anyone who takes your advise then. Seeing as how you can't even properly gear a jeep.
Lmao!!!! Ok have a nice day...
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Old 01-31-2013, 01:35 PM   #26
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4.0:when i was stock no lift and on 30s, 18 was my average. if i did a long haul on highway i PR'd at 21. the 4 cylinder is too small for a 4500lb vehicle to make it a gas saver
I'm pretty sure my TJ weighs about 1300lbs less than yours lol. But, mine is a 4 banger soft top with no rear seat. It might even be 1400lbs less, your Jeep's fat!
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Old 01-31-2013, 01:37 PM   #27
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Exactly a 4 banger jeep does not weigh 4500 lbs.
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Old 01-31-2013, 01:41 PM   #28
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I am a ase tech and and work on jeeps all day but ok you must be a expert lmao!!!!!
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Well I feel sorry for anyone who takes your advise then. Seeing as how you can't even properly gear a jeep.
What happens next
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Old 01-31-2013, 01:54 PM   #29
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The stock 4cyl comes in at 3092lb...
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Old 01-31-2013, 02:11 PM   #30
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What happens next
And I go by the information that is current in the marketplace you can call up Randys Ring and Pinion or Yukon Gears and the will say they will all say same ratio for gearing I did...

It is a mathematical equation between the gearing in the transmission, over all circumference of the tirer and the axle gear ratio to get what is called crawl ratio with 4.10s and 33's you get a crawl ratio of what is in the link I posted here

http://www.4lo.com/calc/geartable.php

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