Zex wet shot

Discussion in '2005 - 2009 Specific Tech' started by overpower, Jun 14, 2009.

  1. hey guys i have a question.... i currently have a 2007 mustang with jba long tube headers, borla catback exhaust, jba mid pipe with high flow cats, imrc delete plates, jlt cold air intake, 4.10 gears, and a "100 shot" zex wet kit.... now i have heard zex doesnt rate to the wheels ... that being said what do you think the biggest shot of nitrous i can run is with stock internals and stock fuel pump?
  2. really u sure...... have u run this shot........ is that alot of strain on the motor...... will it shorten the life quicker then a 100 shot
  3. You need to change the plugs to one heat range colder.
    Then you can run above the 100 shot.
    The jets they give you determine the shot I think 150 shot is the largest with that kit.
    The bottom end on the 4.6L is good for about 450HP
    But that really depends on how aggressive the tune and how hard you drive it.
    You should also dyno tune it so you can adjust it to the HP level you feel safe with.

    But I'm no modular motor expert. :shrug:
  4. ok i already have two heat range colder plugs then stock and am running a bama tune.....im just wondering if im endangering anything significantly more by switching from 100 to 125 or 150....... ive also heard many ppl say at 125 or 150 u need an upgraded fuel pump?
  5. There are variances in stock fuel pumps. My fuel pump was sufficient at 463 rwhp. However, I've seen some guys around ~425 rwhp with maxed out fuel pump duty cycle. Personally, considering the nature of nitrous I'd only run a 100 shot to be safe.