HTT EFR For Dmax

JDub

Member
Aug 9, 2009
607
0
16
Hooper, Utah
Hasn't been one run on a duramax or Cummins to my knowledge. Borg warner doesn't have the turbine housings really available to run them on a diesel yet, so HTT is making their own stainless housings to fit. It is a very cool turbo from what I've seen. Uses a ball bearing cartridge that is water cooled and they use gamma-ti turbine wheels which are super light, so rotating weight is down improving spool up. Borg also has some cool options in them like a built in blowoff valve in the compressor housing, per tapped for a shaft speed sensor and some stuff for better gate control.

There only two options that will really work on the diesels. A 62mm and a 68mm

Sent from my XT907
 

JDub

Member
Aug 9, 2009
607
0
16
Hooper, Utah
Getting closer...

6ahu3ydu.jpg


Sent from my XT907
 

zebiraross

Nypex
Oct 15, 2011
63
0
0
Utah
I think your going to like it alot. Had a buddy run a 76/70 on his snowmobile this year. Performance was good and they sound great!
 

JDub

Member
Aug 9, 2009
607
0
16
Hooper, Utah
Just fitting the down pipe and installing the left side trans dipstick tube away from firing it up. Has taken me a little more time than I'd planned, had a baby two weeks ago and haven't had the drive to be out in the garage tinkering...

I'm using the standard HTT T3 mount kit, just had to make a few modifications to make everything fit due to the difference in this turbo from a the turbo that is usually used with the kit. I'm excited to get it on the street though...just wish I had some rods and more fuel so I could really push it. This uses a 68mm compressor, so I'm sure it would support 700hp pretty easily...I've only got the fuel/tuning for around 550hp, but I'm very interested in it's drivability at this level...

941503_10151393928201500_2125431205_n.jpg
 

JDub

Member
Aug 9, 2009
607
0
16
Hooper, Utah
Only drove it around the block to get the cooling system to refill and burp and to check everything else for leaks etc... seems to have no issue with spool up, response off idle seems every bit as good as the stocker did. Need to finish the exhaust in the morning and go back over all the bolts and we should be set...

This is all I've got for now...
https://www.facebook.com/photo.php?v=10201087502965250&l=1210486652159504124

Sent from my XT907
 
Last edited:

JDub

Member
Aug 9, 2009
607
0
16
Hooper, Utah
Have been able to drive the truck some this morning, still running my stock turbo tunes from ATP. Turbo is VERY responsive, low end feels pretty damn close to what the stock turbo did. It's making boost very easy at 16-1700rpms.

Cruising on the highway at 2000rpms it's making 5-psi at just over 700-degrees. I've currently got the wastegate set at 30-psi and foot on the floor I'm seeing about 1285 max EGT's in my largest tune (made 530hp with the factory turbo, EGT's maxed around 1500)
 

jkholder09

New member
Jan 8, 2012
1,188
0
0
Maryland
Any updates on this project?
We are getting ready to stick one on a fueled and built dmax this week.
I notice the wastegate is vertical on this one.
The one I have is the t3 and the wastegate is attached differently.
Are you using the compressor recirc valve?
What boost do you have the wg setup to?
Did you use the solenoid?
 
Last edited: