post #1 of Old 07-09-2012, 07:19 PM Thread Starter
08MK74
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2008 MK Patriot 
 
Join Date: May 2012
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Pat performance

my 08 jeep patriot (2.4l, 4x4, cvtII, closing in on 70,000 miles) is lagging in the performance department, not that it ever was a stellar performer. my question to all those more mechanically inclined than i, what performance mods can i make to increase torque/horsepower? i swapped the stock air filter with a k & n which seems to have made a slight difference (cold air intake next?). am i limited by the cvt when it comes to boosting torque and hp?

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post #2 of Old 07-09-2012, 07:29 PM
FujativeOCR
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Is speed what we are after? You could pimp out the stereo and get better audio performance (my plan), or lift it for better off road performance. (pretty sure I've seen mildly lifted Pats with bigger tires). But if it's speed, I think you have the same roadblock I have...the Cvt2. I was hoping you could change the final drive gears in the diffs to the standard Pat gears which should make it faster and more efficient but Gramps on here says the computers among other things wouldnt allow that mod. Other wise I'm not sure you'd ever feel power changes because the CVT programming.
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post #3 of Old 07-09-2012, 07:39 PM Thread Starter
08MK74
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the stock stereo leaves something to be desired too, but i'm mostly talking horsepower and torque
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post #4 of Old 07-10-2012, 09:48 AM
Gramps
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Shorter tires will make it QUICKER off the line but cut down on your top end, and vice versa. I'll be looking at a new exhaust before too long do to being in the rust belt and I'd like a better flow and a deeper sound, no fart cans allowed!

I was never sold on the air filter bc less restrictive can mean more crap going into the engine. The computer chips that some advertise is worthless. With all of the computer stuff even squealing the tires is work. You need to turn off the ESP to accomplish that and that's not advisable.

Being able to control the computer programming from the dash could change things a lot, including destroying the engine.

I do remember the days when 1hp/cu.in. was a BIG deal. We are getting 172hp out of 144 cu.in. and decent mpg too.

Bob

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post #5 of Old 07-10-2012, 09:10 PM
General_Jeep
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Go to a Caliber forum they seem to do alot of turbo upgrades most make more power than the SRT4 versions. Even then you would need a stronger transmission and axles most likely. I believe the transmission I have the 5 speed is only rated at 200Ft/lbs of torque... so any big upgrades and you will probably break alot of other parts.

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