notamos
NAXJA Forum User
- Location
- Fort Collins, CO
I rebuilt the engine in my '99 at 114k miles because the previous owner let it overheat, cracked the head and trashed the bearings in the lower end. I did a stock rebuild with proper machining and quality parts.
At the time of rebuild, I replaced all sensors with Mopar sensors, new OEM O2 sensors, Dynomax cat back, Magnaflow cat, cowl intake, Mopar waterpump, stainless exhaust manifold from A1, Clearwater 630-clone cylinder head (new casting), etc. Basically, everything was replaced and I went overboard a bit...
Aside from the stock items, I am running a ZJ HD fan clutch (272310), 4.56 gears and 31" ATs and a lowish/light lift. I'm not heavy with tons of armor or anything. But, I live in CO at 6k feet.
Here is my problem... This thing just feels slow. I thought with a "new" engine (has 14k on it now), 4.56 and 31s that this thing should feel fast (for a XJ). I know the fan is WAY noisy - could the additional drag from the HD clutch cause significant power loss? I'm getting about 11.5mpg around town (with a correct speedo).
Thoughts?
At the time of rebuild, I replaced all sensors with Mopar sensors, new OEM O2 sensors, Dynomax cat back, Magnaflow cat, cowl intake, Mopar waterpump, stainless exhaust manifold from A1, Clearwater 630-clone cylinder head (new casting), etc. Basically, everything was replaced and I went overboard a bit...
Aside from the stock items, I am running a ZJ HD fan clutch (272310), 4.56 gears and 31" ATs and a lowish/light lift. I'm not heavy with tons of armor or anything. But, I live in CO at 6k feet.
Here is my problem... This thing just feels slow. I thought with a "new" engine (has 14k on it now), 4.56 and 31s that this thing should feel fast (for a XJ). I know the fan is WAY noisy - could the additional drag from the HD clutch cause significant power loss? I'm getting about 11.5mpg around town (with a correct speedo).
Thoughts?