Hi,
New member here and would like to ask for some Jeep tuning advice for my 02 Grand Cherokee Overland with the 4.7HO engine. I would like to thank AdamJ for pointing me out to his forum. He had a similar Jeep that I saw from the jeepsunlimited forum that was tuned so I asked him about it.
So far the only mod for power I had done is the Magnaflow exhaust. I’m looking to add a little bit more HP and torque with the K&N cold air intake, a bigger throttle body and the Superchips tune. I’m hoping the combination of these 4 mods will give me a nice boost. I’m looking for general opinions on these mods. How much more power/torque can I expect? How will my Jeep behave, sound and feel? AdamJ did similar mods and sounds like he got a real nice boost (and ¼ mile time to prove it).
My questions regarding the specific parts:
K&N FIPK – Does it let more dirt into the engine being less restrictive? Is the main reason that it is much louder is because you’re getting rid of the resonator? Can it mess with the throttle body being an oily filter and why does it need to be oily to catch dirt?
Superchip 3875 – I’m using 93 gas already so I guess I would be getting a real boost with this tune. Any downside of this chip? I read that it optimizes shifts. Does this mean it gets rid of torque management? And if it does, what is the down side of it? More wear on the transmission and less smoothness? Does it only affect shifts under WOT?
Throttle Body – I’m thinking about getting either the F&B 70mm or the Fastman bored 68.5mm (save some cash). How does a larger throttle body help increase HP? Does it affect throttle response? Why would a too large TB actually decrease power?
Thanks and looking forward to replies.
New member here and would like to ask for some Jeep tuning advice for my 02 Grand Cherokee Overland with the 4.7HO engine. I would like to thank AdamJ for pointing me out to his forum. He had a similar Jeep that I saw from the jeepsunlimited forum that was tuned so I asked him about it.
So far the only mod for power I had done is the Magnaflow exhaust. I’m looking to add a little bit more HP and torque with the K&N cold air intake, a bigger throttle body and the Superchips tune. I’m hoping the combination of these 4 mods will give me a nice boost. I’m looking for general opinions on these mods. How much more power/torque can I expect? How will my Jeep behave, sound and feel? AdamJ did similar mods and sounds like he got a real nice boost (and ¼ mile time to prove it).
My questions regarding the specific parts:
K&N FIPK – Does it let more dirt into the engine being less restrictive? Is the main reason that it is much louder is because you’re getting rid of the resonator? Can it mess with the throttle body being an oily filter and why does it need to be oily to catch dirt?
Superchip 3875 – I’m using 93 gas already so I guess I would be getting a real boost with this tune. Any downside of this chip? I read that it optimizes shifts. Does this mean it gets rid of torque management? And if it does, what is the down side of it? More wear on the transmission and less smoothness? Does it only affect shifts under WOT?
Throttle Body – I’m thinking about getting either the F&B 70mm or the Fastman bored 68.5mm (save some cash). How does a larger throttle body help increase HP? Does it affect throttle response? Why would a too large TB actually decrease power?
Thanks and looking forward to replies.