i have a stage three 4x4 cossie and it wont rev beyond about 5500.the car has a t34,greens.3bar map sensor and an ahmed bayjoo chip and pectal board.runs fine and pulls like a train but feels like it is hitting a limiter.any ideas?

 

is the limiter no about there anyways?

 

Plugs?? Limiter is at 6800.

 

plugs have been changed,ones that are in it are proper motorcraft motorsport plugs,not sure what the number is.the only things that are not ford are the plug leads.could they cause it?

 

What gaps on the plugs and what boost are you running?

Non-Ford leads are shite.

 

When you say it only revs to 5500, does the engine just bounce (like its hitting the limiter) or is it more like hitting a brick wall?

 

plug gap is set at 26 thou,running 24psi.
when it hits 5500 it is not like hitting a limiter,it just doesn"t want to rev any more as if there is no power above that.
cheers dangerous

 

Sounds like youve a split in a hose or something , the boosted air sounds like its getting out as boost rises .

 

cheers for that,will have to have a look

 

iv got one that does exactly the same as this mate! let me know if you sort it and il
try it on mine......

 

Mine hits the boost limiter at 6200, running 24psi also with bajoo software. It would seem Bajoo is putting these "safeguards" in his chips. But I aint sure, could be sumat else.

 

not a split boost hose.any other ideas?would a weak coil or fuel pump cause it?

 

I think you need to get it checked by a pro.