gradon wrote:Nice--roughly 7 secs to 60 and 19 to 100(we know you can do better: 6&17, lol). How much does your xj weigh and what tires are you running? I'm sure I've read about yours already, but sometimes it all blends together. It looks like you had a nice port job--did you do it(dimensions, tips)?
Hmmm, I'm not sure what my XJ weighs. It is an SE model, 2 door, power nothing, so it should be one of the lighter models made. I'm running 225/70/15 General Altimax tires. I ported the head myself, and am very happy with the results. I had a complete valve job done, new valve seals, and had .010" shaved from the head. I ran the head on my 4.0 for about 80 miles before swapping in the stroker and could feel a noticeable difference from the stock head. As for the specs, I basically followed Dino's webpage.
http://www.jeep4.0performance.4mg.com/head.html
I put at least 25 hours into porting the head because I used a Dremel tool with a sanding wheel. It worked great for precision work, but was very slow. I would recommend using a die grinder to speed up the process.
Oh yeah, I'll have to make a few more attempts at getting down to that 6&17 second margin. I still plan to add a larger TB, lager exhaust and some type of FMU to tune the A/F ratio.
99 Cherokee SE - 2 door, 4x4, 4.6L stroker, 5 speed, 8.25 rear, 60mm TB, stock exhaust
