Thread: VNT Turbo install

What model VNT turbo do you have, what's it originally off?

Can't you use the original boost modulator to drive the pressure actuator on the VNT? The computer won't know the difference if it's just using pressure to regulate boost.

Hi Mate,
Not sure if this will help, but when you bypass the egr you can remove the vacume lines and wires attached to it.
cheers
The Entertainer

Thanks guys,

Not sure what the turbo was originally for. I bought it new from Ray at Turbo Engineering in Thomastown (TEC). It's the setup they have put on a bunch of TD5 defenders and Ray has done a fair bit of development with them. I asked about using the regular modulator to bleed of pressure and control the boost but Ray reckoned that it wasn't very stable in controling the VNT and a fixed connection was best.

Last night I pulled all the EGR stuff off. I've removed the heat exchanger and will plumb it's coolant line back into the header tank. I like things to be as simple as possible. I'll cap both of the vaccum lines on the distribution block.

I'm machining up an new connection to replace the EGR valve piece and I'll drill and tap it to take a barb for the VNT control. That way I don't have to drill and tap the manifold.

I found 2 broken manifold studs when I pulled the exhaust manifold. I drilled them out and helicoiled them. I also machined the hell out of the exhaust manifold so hopefully it won't break any more studs.

Cheers

Michael

Any model numbers on your turbo?

Does any one know If I will get a trouble code if I just disconnect and remove the boost modulator solenoid?[/QUOTE]



Hi mick, I worked on a xr6 turbo and we had a play with these modules, not sure if set up the same but. the ECM may get upset, you aren't disconnecting the boost pressure sensor are you, the ECM needs this for info in regards to fueling, from memory the ford had the boost sensor then the ECM would tell the solenoid to open or close. hope this helps mate

Originally Posted by Disco Mick

Hi All,

I'm new to the forum but I've been lurking for a while.

So you are not to be confused with DiscoMick also on this forum?

Welcome aboard DM2.

Sorry, I didn't realize there was a DiscoMick on here already. My name's Michael and I own a Discovery so I tried a bunch of related user names and it accepted Disco Mick.

Thanks for the welcome.

Cheers

Michael

I tried creating a separate thread in the projects section as I thought it might be more appropriate. However it doesn't seem to have posted for some reason so I'll post the pics here. perhaps I haven't been on here long enough or something.

Here's the exhaust manifold after I carved the webbing out of it on the mill.



Hopefully this should stop it pulling against the studs so much. I also drilled out the bolt holes to give a bit more clearance around the studs.



I left the bolt holes around the center exhaust port to maintain alignment with the ports.

I've still got to face the manifold to give it a nice flat smooth surface to seal against the head.

2 of the studs had to be drilled and helicoiled. The front one is a pain because you have to remove the AC compressor to get at it.

I machined up the new intake connection to replace the EGR valve assembly. I turned it from a piece of 100mm diameter billet I had from another job. It turned out great and I'll post a pic when I get back from holiday. I've also been machining up the inlet and outlet flanges for the turbo. The inlet is done and it connects up nicely to the stock MAF pipe.

The exhaust is proving to be a bit of a pain and I reckon I'll have to make a whole new down pipe with a new flex joint. It's just too tight to connect to the stock down pipe. From what I've read on here the stock stainless exhaust bellows is a bit of a restriction anyway.