Join Date: Jan 2002
Location: Chapel Hill, NC
Thanked 0 Times in 0 Posts
Re: Couple of questions about my YJ
Big87YJ, Couple of things first, Please fill out your profile, atleast the basics, it's nice to know who we are talking to. Second, do a search on each item, most have been covered ad nauseum...with that said, here are my suggestions.
I put a Borla on. NO power gain as I could notice, but does give it a good sound and it will never rust...
The 4.2 is a good motor, lots of botom end but not a lot of top end, to help it simply run better, ditch the Carter BBL carb, Nutter it (do a search) and put on a Motorcraft 2100 carb. This is the cheapest reliable route. On the other end of the scale, Get the Mopar MPI (~$2300) easy to install, everything fits, and your Jeep will always start. With the MPI you will also get some power gains, but not a lot.
The 4.2 will run forever if you take care of it, but it's not gonna win alot of races...it's a draft horse not a quarter horse :-)