Custom holset he351ve variable geometry controller

[overboosted1g]

This it the vgt controller my buddy and i fabricated using a 16g wastegate actuator. I have more videos of the turbo setup in action as well. We had great success with this turbo and had 40psi of boost by 3500rpm.


Holset he351ve variable geometry controller for dsm - YouTube

 

[Bud92gsx]

Very interesting...

 

[blizz99]

40psi by 3500 rpm?! WOW!

 

[overboosted1g]

Here are some pictures

http://i233.photobucket.com/albums/ee223/livetoride12/2012-01-10203840.jpg

http://i233.photobucket.com/albums/ee223/livetoride12/2011-06-17154341.jpg


The car ran a best time of 11.30 @40psi

this is the car at 34psi running a 12.07
http://youtu.be/r-cuyx1TA8g

 

[airmail96]

I WANT . I knew these things could spool quick but 40psi by 3500 rpm that is insane. I have been trying to figure out how to attach my wastegate to the mechanism on my Holset.

 

[overboosted1g]

If i recall 40 psi was in 4th ill have to talk to my buddy to get spool times but it took no more then 4000rpms to reach 40psi. The setup took a while to complete and was very tricky to figure out a control system. We tried at least 8 different setups to get to this finished product.

 

[big_d]

What kind of trap speeds are we talking about on that 11.07 run?

 

[airmail96]

The pictures it is hard to see exactly what you guys did to get it to actuate, but regardless the results speak for themselves are you using a bosot controller on both wastegates?

 

[overboosted1g]

I think it was around 130 or so but its not my car so im not quite sure ill ask my buddy for full details and my bad i just found out it was an 11.30 at 40psi my bad.

The pictures it is hard to see exactly what you guys did to get it to actuate, but regardless the results speak for themselves are you using a bosot controller on both wastegates?

Yes we used 2 manual boost controllers, one to actuate vgt and the other for the ewg.

 

[airmail96]

Nice that is the same thing that I was wanting to do.

 

[overboosted1g]

Lol dont use springs to actuate the vgt because we tried that and the vgt snapped shut at 50mph and it felt like we hit a brick wall because all the way shut is the turbos engine brake feature, and gassers don't like engine brakes .

 

[97gst_spyder]

PM me with the info to make this please. This is something an awd auto needs!

 

[airmail96]

Haha yeah I have seen people use a spring to help open it but as the main thing opening it never seen that.

 

[overboosted1g]

Haha yeah I have seen people use a spring to help open it but as the main thing opening it never seen that.

Well the pressure in the turbo slowly opens it up and the spring helps it return, sometimes it closes a little to fast.

 

[Bud92gsx]

Can this type of setup be used on almost any turbo?

 

[overboosted1g]

Can this type of setup be used on almost any turbo?

well any variable geometry turbo.

 

[Bud92gsx]

I wonder A mhi turbo could be made to be varial geometry..It's interesting..Would love to see if there are any options out there..

 

[ed1380]

I wonder A mhi turbo could be made to be varial geometry..It's interesting..Would love to see if there are any options out there..

Someone asked that a couple weeks ago, and the general response was that it's not worth the effort when an E316g already spools fast.

 

[Bud92gsx]

I'm just saying they have had the tecnology for 20 years now..Why not add it to a bigger turbo, that would still allow you to spool at low rpms...Great for auto cars..I just wonder why it isn't utalized like it should be..

Lets say it would allow you to spool a (just for reference) an hx52 for street drivability..Then still have the hx52 for the track, you know..

 

[ed1380]

I'm just saying they have had the tecnology for 20 years now..Why not add it to a bigger turbo, that would still allow you to spool at low rpms...Great for auto cars..I just wonder why it isn't utalized like it should be..

Lets say it would allow you to spool a (just for reference) an hx52 for street drivability..Then still have the hx52 for the track, you know..

Would a he351 satisfy you on the track?

 

[Bud92gsx]

Anything would satisfy me...But this is the first time i've heard about these turbo's..So I just wanted to pick some brains, and see if we could use this...And not just on holsets either..

 

[overboosted1g]

Well the problem with trying to make other turbocharges such as a 16g variable geometry is the fact that the variable geometry function is not only a part of the chra its a part of the hot-side, so the turbo would have to be completely redesigned.

 

[Bud92gsx]

But if it was possible..There would be a market for that...Making a 16g spool like a 13g..Or making a large turbo spool like a 14b/16g...

 

[overboosted1g]

Ya bc the he351 is like the same size of a hx40 and spools like an 18g

 

[brian9397gsx]

#### I had one of these 2yrs ago wished Id of hung onto it. At the time I had no use for it and the best way to control it was a wastegate that didnt look to promising at the time. Would be great for my auto I have now.