engine upgrades
 

i have been looking around for some engine upgrades and found some interesting info on changing out injectors. I am not sure if anyone has done this or not but it definitly looks likes something to look into farther.

http://www.jeepforum.com/forum/f11/i...-4-0l-1224714/
I realize that this is not a TJ but it is a 4 l engine.


I am not sure how to embed a video but this is worth looking at!
http://www.precisionautoinjectors.co...2&categoryId=3

any coments?

Re: engine upgrades
 

I just ordered a set... I'LL let you know when I get them in if they work any better!

Re: engine upgrades
 

just wondering if you have installed the new injectors yet?

Re: engine upgrades
 

Hey Bman 505,
I have installed them and noticed a small increase in MPG and a lot smoother idle and accelleration . I haven't done any distance driving just back and forth to town and am getting 19.5 mpg.
Dave.

Re: engine upgrades
 

if you don"t mind me asking, did you buy new or wrecking yard?
where did you buy them and part numbers?

Re: engine upgrades
 

Hi Brian
I bought the ones from the video that you posted ..... http://www.precisionautoinjectors.co...2&categoryId=3 They have the parts in stock and were sent out the next day. I have friends in Seattle that I had the parts sent to then went down there to pick them up... ( on the way to Hawaii).....

Dave.

Re: engine upgrades
 

i havent done injecters yet but what i have done is monthen a installed a electric fan and got more power And a month later got a throttle body space and i have more torqe and power and better fuel millege i also put e4 spark plug in and it runs smoother i get 400 km s to a tank of fuel

Re: engine upgrades
 

Installing an electric fan on any engine (lose the mechanical fan) is a good investment, fans can rob 5-10% of your torque and affect mileage considerably.
There are lots of different posts to do it, the most common donor is a 2002 ford Taurus fan. Low profile and all the wiring is easy to get at when taking one out.