jivepepper

I'm sure you are stoked congrats. Do you plan on visiting the track?

mustangman281

Get some heads, cams and an intake and be up there with me and jive.

doughboy4.6

lol this is more then I need. I am having a minor problem I am trying to track down. boost the car and get over 5k and and some times it will just cut out. I do not know what it is yet but it will come and go.

Ford93Bronco

I did'nt know you could get that much power out of the stock heads. They can handel that much power??

mustangman281

You are losing fuel pressure. Stay out of it until you get it fixed.

Stevecooper

He says it cuts out, and you automatically know its a fuel pressure issue.... that's quite a talent you have there.

What did you gap the plugs at?

Do you have a fuel pressure gauges in the car?

have you logged pressure drop across the injectors?

are you running a wideband in the car?

do you have a dyno graph that clearly shows the A/F ratio?

doughboy4.6

plugs are at 32 no fuel pressure in car I have not we did on the dyno and it was good but fuel is maxed out cobra pumps boost a pump and 60lb injectors I do have a wideband in the car. I have a dyno sheet we are right at 11.7 11.8 after 4700

Tim99GT

Very nice Doughboy!!!!!
+1 for heads and cams to push you over the 600rw marker.
Again, congrats and i want a vid of it on the street!

Stevecooper

Wait what?

are you saying the the fuel pumps are close to 100% duty cycle? if not you should log it.

when the car cuts out have you watched the wideband to see what happens, or have a friend do so (550rwhp and not watching the road isn't the best idea)

doughboy4.6

Well at 30 on the boost a pump the car would drop pressure but at 50 it was fine but I know it is maxed out. But I think I have it fixed I messed with the boost a pump wiring to make sure all was hooked up fine and pulled the ecu took the chip out put the chip back in and put tape over the chip to make sure it was not moving. Now the car is fine I could not get the car to cut out.