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maccavr4

Member
Joined
Mar 11, 2006
Messages
468
Location
Melbourne
Hey guys this is a really dumb question but what do they do lol na just kidding but

i have a manual one can it be installed backwards and which way do i turn the screw to up the boost was watching the boost gauge today and only hitty 12 or 13 still kills ss and xr8s though lol any help would be great cheers
 
ok so noby knows ? :shock:
also with a high flowed tdo5 pod 3inch mandrel from turbo microtech forgies cooler and some othere mods what sized injectors could i run without it lossing power how big should could i go
 
as far as the boost control you can only install in one way and that is the way the arrow points, and to up the boost depends on the controller but usually anticlockwise will up the boost
 
maccavr4, can you please start to use punctuation in your posts, it makes it easier for us old farts to try and help you out.

As GVR40 said, most will only work well when flowing in a particular direction, if there is an arrow on the side of it, this usually points towards the turbo but consult the instructions for your particular boost controller. They should also tell you which way to turn it to adjust your boost.

If in doubt, take it off, blow in the opposite end to that connected to the turbo (e.i. the end which connects from the intake piping) and turn the knob. If you cannot blow through it, this means the wastegate actuator sees no boost and therefore does not open up the wastegate which means you will run 20+ psi which is way too much if you are still running standard injectors. Wind the knob the other way until you can blow through it easily and install it on the car in this configuration. This way, you should only be running stock boost (8 psi). Slowly wind the knob in until you reach your desired boost level.

"What sized injectors could i run without it losing power? How big should could i go?"

That will depend on how much boost you are going to run.
What boost level does your turbo run out of efficiency?
Are you using the standard fuel pump or a Walbro/ Bosch etc?
 
rob323 said:
If you cannot blow through it, this means the wastegate actuator sees no boost and therefore does not open up the wastegate which means you will run ....

It depends, i have a manual one i cannot blow through, its got a nice spring loaded ball in it :) Doesnt let the wastegate open till my desired boost has been reached :wink:
 
i run about 18psi and that runs fine on it not sure about the fuel pump but i get a little puff of fuel smoke out the pipe at full boost. i want to upgrade my fuel system what injectors and what fuel pump. i might be building a engine for 25plus psi so if i upgrade fuel pump injectors i only want to do it once.
 
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