Help Plz!!

[r.berry23]

i did a pulley swap 2.8 with a 74 1/4 inch belt and a amazon sct tune im calling them tomorrow but wats going on is wen i floor it in second when i hit top boost the car studdars/ jolts my ideas are either the belt is slipping or my other idea is if its not getting enough fuel ideas plz

 

[MustangMikeKy]

http://www.stangshiftergaskets.com/belt_selection_guide.htm
check and see if you have the correct belt . . .

amazon tune??? dude, you always want to get a terminator dyno tuned . . . cheap route will give you poor performance . . .

:beer:

 

[MaximumVelocity]

Any belt dust on the hood (underside) or upper rad hose?

 

[sharkattack]

That doesn't sound like a belt problem. Can you get it on a Dyno? Mine used to do the same. I was close to pegging my MAF. Went with an SCT 2400 MAF and updated the tune. No problems since.

 

[jm@ReischePerf]

the car studdars/ jolts

Nope... this sounds like spark blowout. You need to change your plugs or close up the gap a little to .032-.035. Otherwise just drop in a set of NGK TR7IX, no regap required.

 

[jm@ReischePerf]

amazon tune??? dude, you always want to get a terminator dyno tuned . . .

:nonono:

Must we always blame the tune first?

 

[r.berry23]

haha yea i called the tuner they said that its probably the plugs im putting on new ones ill gap to 35 hope this does it ill keep everyone informed thank you

 

[03dsgcobranc]

let us know what happens

 

[Rick James]

Plugs or MAF as previously stated....

 

[MustangMikeKy]

:nonono:

Must we always blame the tune first?

i watch dyno tuners spend hours on these cars on the dyno, with plenty of data and things . . . these cars need that special attention if you want them to make good power and be good A/F . . . not saying it can't be done with a canned one, just saying I wouldn't recommend it . . . :beer:

 

[r.berry23]

resolution

alrite guys it was the plugs runs like a beast now and for my reward for figuring it out i slapped on some stainless ss inserts thanx for the help guys

 

[jm@ReischePerf]

alrite guys it was the plugs runs like a beast now and for my reward for figuring it out i slapped on some stainless ss inserts thanx for the help guys

:beer:

 

[MustangMikeKy]

if it was plug gap . . . then :beer:

but if they were fouled . . . time to figure out why

glad u got it fixed tho

 

[03dsgcobranc]

what kind of plugs were in there before you changed them and at what gap were they on?

 

[r.berry23]

i dont know exactly what kind the dealer put them in but they were platinum plugs gapped at 45 i put in ngk tr6 plugs gapped to 35

 

[r.berry23]

if it was plug gap . . . then :beer:

but if they were fouled . . . time to figure out why

glad u got it fixed tho

what do you mean by fouled?

 

[MustangMikeKy]

what do you mean by fouled?

black. . . if they are covered in a black dust, they are fouled, and that could prevent spark . . . usually caused by too much octane in the fuel, or a bad tune . . .