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A-Team Turbo VS CKO-40(hx-40 knock-off)

Interesting on the LLY... Even the LMM with it's 25" fan etc. still runs hot (for me) w/o the cat and DPF in place and EGR blocked on a 4" exhaust. Guess 365 HP generates a lot of heat and yeah the stock programing isn't the best for heat control...

How does the turbo size compare to the GMx and ATT? We have 2 valves and the Dmax has 4 per hole so I wonder how the flow would be with the near same displacement...
 
great white said:
So, you have run both an ATT and a 40 knock off or you're just reposting what others have said?

If reposting, the "claimed performance" is suspect....as opposed to someone like WW who has actually run an ATT hard and presents his data.

Honestly, if this is ever going to be put to bed, someone needs to bolt up and ATT, run it through a testing loop, then bolt on a HX40 (or whatever they're calling them these days) and run the same test loop.

On the same truck.

By an impartial party.

Anything else is pretty "speculative".

Need quantifiable data and minimizing variables here or it's just gonna be the same ol' blah, blah, blah again....
Click to expand...

Thought it was pretty clear that Jeff was summarizing what he had seen the others posting up, maybe not quite clear enough about that so probably to some ears it will just be the same old blah, blah blah.... that is always just a personal perspective of each individual anyways....

I believe that the effort of this thread was to open a neutral forum for the actual owners of these turbos to be able to do side by side comparisons, and discuss in a civilized manner the pros and cons of each. That was the reason that this thread was also opened on another site with just a link coming here.

Personally, I don't desire to own either of these turbo's, test them yes, run them no. If I am to run a turbo, i think it would be better to rebuild the original instead of using a copy. Now back to topic.....and possibly any members that have these turbos will post their results.
 
Great to see the Dmax vnt turbo coming on to the scene, we looked in the spring to purchase but went another route. Think we will be using the vgt on the next one.

With these three new projects coming along, we will have some interesting reading coming in the new year...
 
Woody35 said:
any ideas on what a controller costs?
Click to expand...

the one from fleece? the one we were discussing building is still in discussion, first we need an electronic controller before anything... thinking to build the controller using a vaccum TPS on a mech. pump.... the style used to regulate vaccum for a th-400.... just using it backwards with boost instead....
 
I might see if I can just buy a 68mm cheeta turbo (for the welding truck) and the controller from them at the same time and ask for a deal. Maybe I will get lucky I donno.
 
WarWagon said:
Interesting on the LLY... Even the LMM with it's 25" fan etc. still runs hot (for me) w/o the cat and DPF in place and EGR blocked on a 4" exhaust. Guess 365 HP generates a lot of heat and yeah the stock programing isn't the best for heat control...

How does the turbo size compare to the GMx and ATT? We have 2 valves and the Dmax has 4 per hole so I wonder how the flow would be with the near same displacement...
Click to expand...

I haven't had an LLY VVT in front of me to compare, but I believe it is a 62MM intake like the LB7 is. I know the LB7's turbo is pretty big compared to the GMX series of turbo's. I know my LB7 surprisingly doesn't stay on the wategate like most would think it would. In stock trim teh LB7 doesn't pop the wastegate very often as it is sized a bit on the big size for the DURAMAX at 300HP. I'm running 50% over tuning(closer to 65% over actually though), and I have just now reached the point that I can't clear the smoke up at stock boost levels(24 peak). I would think the CUMMINS VVT would be a much better option as it doesn't use the funky pedastal mount base that teh DURAMAX does with the dual feeds.
 
I will take some pics of mine on the bench. I was considering going to the 351vgt but I want to try Somthing
Different. I'm confident I can get it to work. Just gonna be a little harter to fabricate. Having control of boost on the fly with a switch Will be pretty neat.
 
DZZ71 said:
Thinking about it now with a slight body lift and a cowl hood might just work. Thanks for the idea GW :)
Click to expand...


No prob, just need to think out of the box a bit.

Well, I was thinking about the marine applications where they flip the headers and mount the exhausts high and to the front.

Not much of a problem in a boat....
 
turbonator said:
Thought it was pretty clear that Jeff was summarizing what he had seen the others posting up, maybe not quite clear enough about that so probably to some ears it will just be the same old blah, blah blah.... that is always just a personal perspective of each individual anyways....

I believe that the effort of this thread was to open a neutral forum for the actual owners of these turbos to be able to do side by side comparisons, and discuss in a civilized manner the pros and cons of each. That was the reason that this thread was also opened on another site with just a link coming here.

Personally, I don't desire to own either of these turbo's, test them yes, run them no. If I am to run a turbo, i think it would be better to rebuild the original instead of using a copy. Now back to topic.....and possibly any members that have these turbos will post their results.
Click to expand...

Raceday will have the data you desire once his runs are complete.

That will be quantifiable data since it will be on the same truck, on the same run.

Personally, i believe a VVT is the way to go for an "all arounder".

Time will tell.....
 
great white said:
Raceday will have the data you desire once his runs are complete.

That will be quantifiable data since it will be on the same truck, on the same run.

Personally, i believe a VVT is the way to go for an "all arounder".

Time will tell.....
Click to expand...
i agree, although once again it is an experiance in fabbing up just about everything.... but we have looked at it as well and agree that it is the next option...
 
turbonator said:
i agree, although once again it is an experiance in fabbing up just about everything.... but we have looked at it as well and agree that it is the next option...
Click to expand...

I know you've said before that two of you are posting under one name, but that "we" thing is freaking me out man!

;)

Myself, I've been trying to find a way to use the PWM signal from the 6.5 PCM to run a PWM driven VVT turbo control, but it is proving to be difficult to fabricate on a part time basis. My work is eating up a lot of time. I have to conduct SAR OPS on a 24 hr basis, run my section of 8 Engineers and oversee an Entire Squadron (100+ trouble makers!) as the Squadron Warrant Officer. Not much time left for cocky to play in the garage! 8 more years to retirement, lots of time to play then.....

But, the idea is something like a HE351VE run off the stock 6.5 PCM.

Neat, clean and fully integrated and controlled by the .cal files in the PCM....
 
turbonator said:
i agree, although once again it is an experiance in fabbing up just about everything.... but we have looked at it as well and agree that it is the next option...
Click to expand...
Hmm. Well as of Dec 23 I am no longer a employee of Rusty Wallace Racing, so im stepping up PT Wiring Solutions to see if I can eek out some sort of a living out of it, The good thing is I now have time to R&D alot more, the Fabbing part I have covered
 
racedaymechanic said:
Hmm. Well as of Dec 23 I am no longer a employee of Rusty Wallace Racing, so im stepping up PT Wiring Solutions to see if I can eek out some sort of a living out of it, The good thing is I now have time to R&D alot more, the Fabbing part I have covered
Click to expand...

I hope it was a planned "parting of the ways".......as in you planned it.....
 
we are looking forward to your testing of the 2 turbos.....

KBC

Sorry to hear about the parting of the ways. Your quality workmanship will always find a market:thumbsup:, best to you in the new year. Jim & Jeff.

.....freaks me out even more when Jeff starts talking in third person...:eek:
 
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