Recent content by stlouisboy63

Well you guys think it's funny for me to share my success. I've done a stock parts tune up before on my xj and continued to get the stock gas mileage of 15mpg. I just thought you guys might be interested in the results of just spending a few extra bucks. By the way I didn't need to increase the...

Well it's been a process of trying to get some more HP out of it as well as increasing MPG. My original jump came 2 yrs ago when I bought a high flow tube and air filter off of ebay (it was about $50) and a 160 degree therostat. I picked up some power and went from 15 to 17mpg (of course I did...

Is anyone interested on what I did to go from 15mpg up to 17mpg to currently 23mpg on a 1990 XJ?

This has been the best way I have found to shift out of 4wd also. The only differance I don't worry about the speed, highway or city streets. I just let up on the gas, put tranny in neutral, then throw it into 2wd. I then just put it back in gear and continue down the road. I do the same thing...

Just a suggestion. Try looking at eBay for your new intake system. You can get a K & N kit shipped to you for under $60 and non K & N systems for even less. I bought mine 2 years ago and love the howl from it sucking all that air. It was a big help in performance. You might then still have money...

I bought my '90 XJ 4x4 2 years ago to pull my boat. It had 105K miles and now it has 130K. I noticed from the beginning a twisting sound under the vehicle (towards the front of vehicle) upon dead stop take off. It only lasts for about the first 5 to 10 feet. When I pull the boat it occurs for...