Anyone know the stock boost setting on T3 in the Ford turboCoupes? Thanks

 

8psi. the t03 in them is good to 18psi though.

the other turbo (can't remember off top of my head) is also good to 18psi so don't worry if that's the one you have.

 

Im worried because if it is 8 psi then i cant tune the psi down any further than that with the Profec B(using internal wastegate) looks like ill have to go external then

 

um, you can bend the wastegate to lower it past factory. hand on, I've got one from a xr4ti in my trunk lemmi go see if it's adjustable...

 

forgive it's nastiness but if I remember correctly bend the pot (on the bracket of course) to the left of the picture). when you bend it farther away from the actual wastegate you lessen the amount of boost pressure needed to fully extend the wastegate pot to open the internal wastegate. If you bend it TOWARDS the wastegate (to the right of the picture) then you have to have MORE boost pressure to push the diaphram in the pot all the way over to open up the wastegate.

hopefully that made sense heh.

 

im not really sure on what and which way im bending here

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 97F22B2 &raquo;</TD></TR><TR><TD CLASS="quote">im not really sure on what and which way im bending here</TD></TR></TABLE>


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ok, see the golden grimey looking thing in the upper right of the picture with the rod coming out of it that goes to the right of the picture?? that's the wastegate vacuum pot. It has the black hose coming out of the bottom of it. That hose is attached to the compressor housing and sees boost and the boost gradually builds up in it which pushes the rod over to open up the wastegate (not in the picture because I removed it which is why the rod goes to nothing). you grab that pot and bend it (see the bracket going from it to the housing?? you bend it to the left of the picture that way the internal diaphram (if it were still attached to the wastegate it would be easier to visualize) will be closer to the open position (fully pressurized side).

this help?

also, please realize I could be *** backwards so simply hook the turbo up with a boost gauge and run it at stock setting then bend the pot one way and run it again. If it hits a higher boost level then obviously you must bend the pot the other way to lower the boost level...

 

excelent info, helps me out a lot, i sort of have the same problem

 

so you bend it away from the oil returno for less boost and towards for more, i tihnk

 

instead of bending the wastegate arm...u can cut the arm, thread both ends and add a long hex nut so then it could be adjusted to your perferred settings.

 

yeah bend it away from the oil return if memory serves me right.

that would have to be one hell of a long hex nut and it would have to be one of those ones with both thread patterns on it (forward and reverse) not to mention you'd have to find the proper thread taps in both forward and reverse for the parts of the arm so you'd get this motion when you wanted to twist in or this motion when you wanted to twist out