Holset vgt 6.9 idi build thread

[bradroche]

Picked up a holset he551ve vgt turbo for a steal so I decided it time to put it on my project truck which is a 1986 f250 ex cab 4x4

 

[riotwarrior]

551 or 351?

 

[IDIoit]

welcome to the forum
pictures or this thread is a farce.

 

[Waystro]

 

[bradroche]

It's a he551ve it's off an isx Cummins I picked up from work it's a big *******

 

[bradroche]

It's a he551ve I don't think anyone has put one of these in an idi yet

 

[bradroche]

I'm new to forums I'm going to try my best with this writeup

 

[riotwarrior]

Well i know how large the HE 351 VE is quite huge compared to say the 093 ATS or other kits for these trucks...

Pics a d more pics...good luck with the build.

What do you plan to use for the control of variable vanes?

 

[bradroche]

https://youtu.be/IWgauF3x0yk Here's the truck in its current statechnology sorry the video is kind of lengthy but you'll get the gist of where I'm as so far

 

[Waystro]

It says video is private.

 

[bradroche]

Just switched it public should work fine in a few minutes

 

[Waystro]

Wow! That is Awesome
Seriously making me want a turbo

 

[bradroche]

My thought on controlling the vanes is using a Hobbs air switch on both sides of the turbo one in the y pipe so when a certain pressure is met the 12v is switched to a 12v electtonic actuator to open the vanes and once the pressure is wasted the vanes will slowly close again and at the same time I want to put a ten pound Hobbs switch on the charge side of things to open the vanes when max boost is met because I don't want to make it over 10 lbs and once the vanes are open I'm going to have to keep an eye at the boost Guage maybe put an aux wastegate in. This is all a theory though we will see how things go

 

[crash-harris]

Btw, that spool is HUGE! How well do you think it will match the IDI's exhaust flow? Curious about what RPM it will start to build boost at.

 

[jayro88]

I could have sworn that someone used a vgt turbo on a custom remote setup. I think he used a wastegate to physically move the arm that adjusted the vanes. It was a while ago that I read the thread, not sure if it was here or on FTE. It was fairly detailed.