Actuator rod?

[up-high]

My MCXpress is over boosting. I fixed a bunch of leaks in the system. I think previous owner just tried to increase boost to compensate. No boost controller so I was wondering how to adjust the waste gate actuator rod. Anyone know how many turns per # of boost? I shorten the rod to lower boost right?
Thanks

 

[Wheel House Motorsports]

you want less tension on the rod to lower boost, thus thread it out.. as for turns per #.. not a real exact number. just start looseing a few turns and get it figured out. doesnt take a tone of work.

 

[up-high]

Thanks. I'm not close to any snow so I won't be able to test.

 

[boost mod]

i see you have a 310 chip using actuator rod to control boost at 17psi your bottom end will suffer it's not noticeable on 8psi but using a boost t or better yet a true boost controller allows you to put back pressure on the wastgate witch makes a big difference on bottom end and spool up time and recovery it was well worth the money. on mine i got full boost 1000rpm sooner.when using one of these your actuator rod is suppose to be a half a hole out from the pine on the tight side.so you are only moving the actuator rod a 1/16 inch or so.

 

[up-high]

Thanks. What's a good manual boost controller?

 

[boost mod]

 

[boost mod]

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http://www.aemelectronics.com/tru-boost-boost-controller-gauge-757
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</TD><TD style="FONT-SIZE: xx-small">No external interface required for programming!</TD></TR><TR><TD vAlign=top>

</TD><TD>Complete system includes harness, boost hose, on-board 29 PSIg pressure sensor (external 75 PSIa optional), boost solenoid, gauge display and all necessary fittings</TD></TR><TR><TD vAlign=top>

</TD><TD>Quick connect technology eases the installation process</TD></TR><TR><TD vAlign=top>

</TD><TD>Two user selectable boost settings with peak boost memory</TD></TR><TR><TD vAlign=top>

</TD><TD>Scramble boost setting allows user to momentarily change boost levels</TD></TR><TR><TD vAlign=top>

</TD><TD>User selectable Overboost alarm includes two timed shutdown levels at 10% and 20% Overboost</TD></TR><TR><TD vAlign=top>

</TD><TD>User configurable gauge includes 24 scalable LEDs, and interchangeable bezel, pin guide and faceplate to customize look of display</TD></TR><TR><TD vAlign=top>

</TD><TD>One (1) low-side output included for warning lights

keep the solenoid away from heat it will not take it.
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[red]

There is alot of companys that make manual boost T's. Pretty much any hotrod shop can get them for you or sell them. I have great luck with turbosmart, lots of people use halman. Boost controller should be mounted closest possible to turbo/wastegate. I also sugguest you looking into getting a vacuum pump. That way you can check for leaks, & see what pressure your wastegate opens at. The vacuum pump I have does vacuum & pressure. Its a hand held tool, got if from Napa dealer, $100cdn. I will try to find the part number. It makes turbo troubleshooting life alot easier. I also use the tool @ work in diesel semis.

 

[up-high]

Thanks for the replys. I'll see what I can get.

 

[BigFish BC]

hallman pro with the ceramic ball wont rust & reacts quicker do to being lighter

 

[sledheadd]

X2 on the hallman with ceramic ball.

 

[up-high]

Got a hallman Pro on the way! Thanks guys.

 

[up-high]

Got the controller today. The line from the turbo and the line from the wastegate go into a little box(solenoid?). The instructions say to disconnect these lines but leave the wires connected. Is this right? Any pics of where you put the controller would help also. I think I'll mount it just in front of and to the side of the wastegate (bolted to the tunnel). That way, I can adjust boost just by taking the seat off.