GTP-38 wastegate actuator

[IDIoit]

so..
if i wanted to use a GTP-38 on a non computerized engine, without a boost ref,
how would i go about this?
the actuator is ran by boost pressure?
if this is correct, i can run the actuator off anywhere downstream of the incoming boost pressure?

one project is a GTP38 on a 97 PSD,
the other one is going on an IDI shortly, if i can find one

 

[OLDBULL8]

This may help. Had to take pic off computer screen. Adobe won't let me print or copy it. If you need it clearer let me know and I can fix it in Piccasa.

 

[IDIoit]

yea, i see that on my 01,
but i dont have a WGCS or a MAP on the 97 7.3's

 

[BDCarrillo]

Use a manual boost controller instead. The factory WGCS bleeds off some boost to change when the wastegate opens.

EX: Wastegate spring is set to 8 lbs, so it would normally open at 8 lbs of boost, but you want 14 psi. A manual boost controller or WGCS would bleed off 6 psi so that the turbo puts out 14 but the wastegate only receives 8.

A manual boost controller would have to be dialed in through trial and error.

It's pretty common to source the boost reference right off the compressor housing, for faster response or something like that... it will obviously drop off some after the intercooler, so I'd plug a gauge sensor in right at the intake manifold.

 

[OLDBULL8]

I was more or less just showing how there hooked up. Don't know why you couldn't just tap into the intake side with the red line, the gate is normally closed. Don't know but worth a try.

You should have your Pkg. today.

 

[trackspeeder]

That little red line is supposed to be hooked to something?

I disconnected that sucker along time ago. A must for any 7.3 PSD

 

[Double-S-Diesel]

That little red line is supposed to be hooked to something?

I disconnected that sucker along time ago. A must for any 7.3 PSD

what he said, first thing that is disconnect on all mine

 

[79jasper]

but i dont have a MAP on the 97 7.3's

Actually you do. Look at your intake plenums. Should have a hose coming off the passenger side one running to the map mounted near the a/c box.

Sent from my SM-T537R4 using Tapatalk

 

[IDIoit]

thats what that hose is for!!!
well we are both right.
i do not have a MAP sensor, like i said...
but like you said one goes in there...

fyi this is the brick nose build im doing with a PSD.

 

[79jasper]

Well in its original habitat, it would be there. Lol

Sent from my SM-T537R4 using Tapatalk

 

[madpogue]

^^^^^ Um, if that hose doesn't have the sensor attached, and isn't blocked off, that would mean you're leaking boost out that hose. No?

 

[IDIoit]

only if the engine was running.
i have not fired it off yet.