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HX40II Turbo Install

One last question that I do not think has been addressed... The oil drain hose. Can the stock GM-X drain be reused or is a custom drain need to be made?

... All the parts will be here in the next couple of days! :)
 
Pillow said:
One last question that I do not think has been addressed... The oil drain hose. Can the stock GM-X drain be reused or is a custom drain need to be made?

... All the parts will be here in the next couple of days! :)
Click to expand...

The way I understand it is the stock oil drain is a direct bolt on and can be used with no modification.
 
Question for you guys with more experience, would you choose this turbo upgrade over the Walking J?

I am leaning towards the Walking J turbo and tune for my Burb, just curious what you would choose?
 
I'm partial to the ATT, not saying the HX40II isn't good. The ATT has more of a track record behind it. Th HX is still in the experimental stage.
 
Question for you guys with more experience, would you choose this turbo upgrade over the Walking J?

I am leaning towards the Walking J turbo and tune for my Burb, just curious what you would choose?
Click to expand...

I agree that it is too early to tell... Also no one has done a back to back HX40II to ATT comparison that I am aware of. Most of this is relative to the GM-X turbos that have been replaced from stock.

IMO a turbo upgrade is only needed when increasing boost over stock and adding a performacne ECU for daily highway use OR towing heavy.

From what I have gained the HX40II is better suited for street driving/performance whereas the ATT is for towing as it has the best flow/backpressure out the exhaust side.
 
The smaller exhaust output of the ATT brings the drive pressures up, while the HX bring them down due to a larger exhaust output, correct?

More pressure=quicker spool...
 
Can't wait to see numbers. I like the diy and share info concept. I'm really glad different turbos are being tested and results shared.
 
All parts arrived...

One of the silicone 90 degree connectors is 45 degrees from siliconeintakes.com so they are sending out a new one today. Bad mistake, but good customer service to make it right.

The turbo of course is cheapish with some of the tapped areas needing cleaned with a grinder. Nothing serious, but still not something you are going to run straight out of the box. The turbine itself looks fine though and spins nicely.

Onto the install!!! Enough jawing online! LOL
 
Pillow said:
All parts arrived...

One of the silicone 90 degree connectors is 45 degrees from siliconeintakes.com so they are sending out a new one today. Bad mistake, but good customer service to make it right.

The turbo of course is cheapish with some of the tapped areas needing cleaned with a grinder. Nothing serious, but still not something you are going to run straight out of the box. The turbine itself looks fine though and spins nicely.

Onto the install!!! Enough jawing online! LOL
Click to expand...

I just ordered my turbo last nite along with all the plumbing for my air box and intake manifold from silicone intakes!
 
Pillow said:
I agree that it is too early to tell... Also no one has done a back to back HX40II to ATT comparison that I am aware of. Most of this is relative to the GM-X turbos that have been replaced from stock.

IMO a turbo upgrade is only needed when increasing boost over stock and adding a performacne ECU for daily highway use OR towing heavy.

From what I have gained the HX40II is better suited for street driving/performance whereas the ATT is for towing as it has the best flow/backpressure out the exhaust side.
Click to expand...

I AM doing a back to back test of the HX40II and ATT, I talked to Dennis a couple nights ago and he is supplying the ATT to me for the test
 
maybe you vendors ought to list everything you sell in your sigs
Click to expand...

THIS!!! Go ahead wares whoring is ok here, we wont ban you ;)

... I just gave them a little over $100 myself earlier this week. LOL

FWIW I will produce a complete parts list like Car Craft when complete.

Issue of the moment: the outlet pipe from the turbo to the intake manifold is 2.25" to 2.5", so a reducer silicone adapter is needed.
 
Pillow said:
THIS!!! Go ahead wares whoring is ok here, we wont ban you ;)

... I just gave them a little over $100 myself earlier this week. LOL

FWIW I will produce a complete parts list like Car Craft when complete.

Issue of the moment: the outlet pipe from the turbo to the intake manifold is 2.25" to 2.5", so a reducer silicone adapter is needed.
Click to expand...

Are you talking about the outlet of the cold side on the hx40wII? I thought it was 3"?? If thats the case i may need to order a different reducer.
 
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