View Single Post
Old 04-10-2010, 08:51 AM   #10 (permalink)
comptiger5000
Master EcoModder
 
comptiger5000's Avatar
 
Join Date: Feb 2010
Location: CT, USA
Posts: 544

RaceJeep - '98 Jeep Grand Cherokee (ZJ) 5.9 Limited
90 day: 13.62 mpg (US)
Thanks: 1
Thanked 26 Times in 23 Posts
Piwoslaw is right about the computer tuning. However, as long as you keep the boost low (under 5 - 6 psi on most engines), the stock internals should be just fine.
__________________
Call me crazy, but I actually try for mpg with this Jeep:



Typical driving: Back in Rochester for school, driving is 60 - 70% city
  Reply With Quote