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BD Quick Spool Valve Install with Pics

The spool valve is a new twist on a project, can't say enough about 6.5 for being the innovator that he is. Looking forward to his dyno numbers to see where things are with this modification. I hear the Cummings guys invented this for some of their larger turbos on the 6. trucks.

Yep really, I know it was long but I don't get back often enough lately. I hated the fact the tune thing happened, but I am having it checked out.
 
Yeah really, whats with the attitude?

How about we keep this clean and have some respect for 6.5L, Im tired of people ruining his threads. I actually want to know what hes got going on with his progress on his truck.
 
Slim Shady said:
The spool valve is a new twist on a project, can't say enough about 6.5 for being the innovator that he is. Looking forward to his dyno numbers to see where things are with this modification. I hear the Cummings guys invented this for some of their larger turbos on the 6. trucks.

Yep really, I know it was long but I don't get back often enough lately. I hated the fact the tune thing happened, but I am having it checked out.
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I don't know about every one else, but I am sick of the rants I have had to read anytime something is said about the ATT or Slim has a tiff with another member. You can't even mention the ATT on one Diesel forum. I'll never run one just because of his attitude.
With out this site I would not have had enough knowledge to buy and restore my truck and survive its first road trip of 4200 miles.
So heres the deal. I want out. I came to learn not hear Slim whine and run down other members. I am going to cancel my membership and move elsewhere. ATT=A**holes Tractor Turbo.
Sorry to jack your thread 6.5. Good work.
 
I stand corrected, I was informed the ricer guys invented this type of device for the larger turbos on their vehicles.

Sky Pilot J. Maybe you could show me how to address the issues correctly? How to reply?

Fixed the adjustable tune, bad ground on the case, thanks to another member.
 
Slim Shady said:
I stand corrected, I was informed the ricer guys invented this type of device for the larger turbos on their vehicles.

Sky Pilot J. Maybe you could show me how to address the issues correctly? How to reply?

Fixed the adjustable tune, bad ground on the case, thanks to another member.
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Topic :BD Quick Spool Valve Install with Pics
Your rantings far from it.
Your problems belong elsewhere.
Two good forums sites ruined by you.
My membership cancellation submitted.
 
I can't wait to see 6.5L results either. But I am still confused on this whole lag thing also. I saw the post about lag being reduced to 1600 so today when I went fishing with my son I watched what my boost did towing a 17' aluminum boat. I'm thinking about 1200-1500 lbs., I had zero boost at cruise, and at 1600 RPM at just shy of 50 MPH I went to pass a guy and rolled on the throttle and I had 2 psi of boost at 1600-1700, with an intercooler. Even empty, if I go to about 1/2 throttle off the line my boost starts coming up right around the same. I just really don't get it.
 
Pre-loaded is completely different from off idle.

6.5L stated his boost now comes up at 1600rpm vice 2000rpm and has cleared up about all of the smoke.. That is a reduction in the time it takes to spool the turbo, and is comparable to my experience with the ATT as well. Its especially noticeable at high elevation. Just like his reduction in lag from larger housing to smaller housing. All turbos have lag, its a characteristic of them, whether you notice it or not has a lot to do with how you drive. You can compare the spooling characteristics between turbos. The ATT certainly spools slower than a GM4 off idle, and begins at a later RPM. I would still rather use the ATT, but that doesnt mean the lag isn't there, its just acceptable to most people and their driving habits. And there may be other turbos that do not compromise quite as much. Lag is a fact of turbos, but manageable and acceptable to varying degrees.
 
buddy said:
Pre-loaded is completely different from off idle.

6.5L stated his boost now comes up at 1600rpm vice 2000rpm and has cleared up about all of the smoke.. That is a reduction in the time it takes to spool the turbo, and is comparable to my experience with the ATT as well. Its especially noticeable at high elevation. Just like his reduction in lag from larger housing to smaller housing. All turbos have lag, its a characteristic of them, whether you notice it or not has a lot to do with how you drive. You can compare the spooling characteristics between turbos. The ATT certainly spools slower than a GM4 off idle, and begins at a later RPM. I would still rather use the ATT, but that doesnt mean the lag isn't there, its just acceptable to most people and their driving habits. And there may be other turbos that do not compromise quite as much. Lag is a fact of turbos, but manageable and acceptable to varying degrees.
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I get how a turbo works. I must have the one and only truck then that performs better with the ATT at lower RPM's than a GM 8(second to last line of my last post, " Even empty, if I go to about 1/2 throttle off the line my boost starts coming up right around the same.) I don't care that my ATT only has 4, 5, or 6 PSI of boost at 2000 RPM, because it is pulling harder than the GM8 did at 12 PSI at the same RPM. The ATT is moving more air at less pressure.
 
Are you running the tune designed for the HX clone on the ATT? Fueling properties of the tune designed for the HX clone? Maybe your tune should be optimized for the ATT if it isn't then the test is not relevant without a tune optimized for the turbo like your tune is for your HX clone. ? If you have lag with the ATT your truck has a mechanical problem or it isn't tuned properly or you are one of the few out of over 100 plus people that have a special truck. Or you have an agenda.

I also spoke with a few people that have shaft play with the Hx clones you and Buddy have been recommending and more than a few have said they don't like the way the turbo falls off when the waste gate opens. Have more been having excessive shaft play?

Send 6.5 L your HX clone so we can test the clone on a truck that we have dyno numbers from the ATT, so they can compare the tubos on a dyno not just your butt dyno. Lets put up or shut up or are you afraid to have someone else do a test? I am sure many people hear would like to see 6.5l run the turbo on his truck

SO when are you sending 6.5 l the turbo to test? Let's do a real documented test without tuning anomalies?
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There is no need to send him my turbo. I have performed the same tests with the ATT as the HX40 I'm running and am posting all results on YOU-TUBE.

1) Stop attacking people just because they don't get the results you want to advertise so you can sell more turbos. Let's all put our pride aside and move forward.
I'm not in competition with you or anyone else. I'm not selling turbos, just buying them and trying them.

I test them and let the chips fall where they may, no agenda, I promise you that. That's why it's so frustrating when you get involved.

Even after all the crap you started over on the other site with me and others alike, I'm still giving this turbo an honest account and being unbiased in my testing and reporting of how it works on my truck.
You're the reason that I didn't post my results here or start a thread here. The answer from you is always the same if someone doesn't get good results, [It must be the truck].

Well Dennis it's not always the truck, if I had a 5spd that I could rev out of the hole to15/1600 rpm than maybe my results would be different. This turbo has bottom end lag especially when run on an automatic trans PERIOD! Why else would we be reading about a spool valve being used with an ATT on a M/T truck no less.

2)I have reported that there must be something wrong with my truck as I couldn't believe that I couldn't get more than 10lbs. of boost with your beloved ATT. I also posted that I found a restriction in the intercooler with pics of what I found. I was also dissapointed when after everything that I've checked and rechecked,F/P, boot leaks, manifold I/E leaks and so on and now can only get 14lbs. of boost. And through it all from day one since it's been on there no matter what I do it still doesn't start spooling until 2000 rpm ON MY TRUCK.

3) Sending my turbo to 6.5 would be a bad Idea, because he would love the way it would spool on his M/T truck with 4.11 gears. I get 0to 60 in 8 seconds with 3.42 gears and the HX40, he would probably get there in under 7 if he knows how to shift and then he wouldn't want to put the ATT back on his truck unless he drives above 3,500rpm all the time, that's where the ATT might have an advantage.

It also is pretty good on the highway as I only have 1/2 lbs. boost and backpressure at 80/85 mph 2,400rpm.

4) If you know someone with a suburban and 3.42 gears and the same or close setup as me than we have a bet.
If you win you can sing the praise of the ATT and I will leave this forum forever.

If I win you take the ATT turbo off the market and leave this forum forever so we can live in harmony and get back to bettering the 6.5 with other options that are out there instead of beating a dead horse.
Why can't you admit that this turbo isn't for everyone, and that so far there is no one turbo that is the magic bullet do all turbo.

5) If you would just relax and let me and others finish the testing of the ATT and find out if it really is my truck or the turbo, you would look the wiser if your attitude would change, including all the keyboard jabs and thinly veiled threats when people don't agree with you.

6) I will start an ATT thread with documentation or contribute to someone elses if allowed by the mods if they belive that I can be unbiased and if Dennis doesn't go to the mods and put a stop to it before it can even get started.
I think it would be great for all ATT owners to put vids in an ATT build thread so we can compare how it works on different trucks with different setups so we all get educated on the ATT.

If this is possible without getting ugly and getting at each others throats, I give my word to be civil and professional with grounds of me being banned forever if I break my word.

I can't be any more forthright than this. ROBZOMBIE

I'm sorry for jacking your thread 6.5, I'm sure you're a great guy and don't deserve this crap and I promise not to do it again no matter how Dennis trys to call me out.
 
Not that something is wrong with my truck but I think just being a manual at altitude it seems more laggy I guess since the air is so thin. The spooling from 2000rpm down to 1600rpm was under normal acceleration, so bout half throttle. Under full throttle today I managed to start spooling around 1450rpm and under extreme load without the Spool Valve I could start to spool around 1700rpm, so either way it was brought down.

And just to cool things off, I decided the other day I am not going to run a HX40II or any other turbo for that matter, I am completely 150% happy right now with my setup and will not change it. And no fueling modifications are in order anytime soon and may never be. I am happy with the mileage I am getting and the power output. I do not want to cross the line between power and reliability and I believe I have found a nice medium.

And I am not trying to start something but I back the ATT 100%. The product is fantastic to start with and I think now has gotten better. I am not in ANY WAY dogging the HX40II, I think it is a good turbo from what i hear and people are happy with it and that is all that matters. Don't we come here to share idea's and to help other create a setup they are happy with? I think that is the main point. Both turbo's have there strong points. It has been said before, the ATT I think is more of a tow turbo which is where it really shines where the HX40II I think is more of a street turbo, where it really shines. I think I have managed to close the gap between the two however and am happy and I appriciate the support from everybody and it is a negative aspect when arguments like these get started and drive people away. Please, can we all just get along? Let's work together to further the advancements of the 6.5L instead of argue about who is better.
 
1999gmc said:
I get how a turbo works. I must have the one and only truck then that performs better with the ATT at lower RPM's than a GM 8(second to last line of my last post, " Even empty, if I go to about 1/2 throttle off the line my boost starts coming up right around the same.) I don't care that my ATT only has 4, 5, or 6 PSI of boost at 2000 RPM, because it is pulling harder than the GM8 did at 12 PSI at the same RPM. The ATT is moving more air at less pressure.
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It could be you are one of the few that had a terrible GM turbo. The turbo is incapable of moving more air at less pressure unless youre talking mass and the IATs are somehow lower in the first few seconds of acceleration. Its good that it works that well for you. One of the benefits of any larger turbo is more open exhaust. The engine alone may pull harder early on without the exhaust restriction, with 4.10 gears giving the get up and go with less hinderance. Its a stark difference to an auto with 3.42 gears. If you look at pre-loaded on the highway where IATs have already creeped up, then lower boost at lower IAT can provide the same air mass, while the engine is also freed of some backpressure, which is very good. I never had any compromise on highway performance, the ATT was great up to 130mph for me. But there just might be something that performs better for me, and it would be refreshing to be able to openly discuss and compare.
 
Also RobZombie, I saw your comment about the quick spool valve being used on the ATT. I was content without the quick spool valve. I will explain the main reason I chose to go that route, and it all comes down to altitude. Now, do not be deceived by this as I am saying the ATT is laggy, but I live at 5200ft above sea level and fairly often tow a 7000lb trailer (empty weight) loaded with 2-3 horses, so maybe around 9000+ lbs fully loaded and haul it into the mountains around 6500+ ft above sea level. Total weight with truck would probably be around 15k lbs. The turbo spooled fine, but with the boost I was running (13-14psi) it still wasn't flowing the air mass like it would at sea level. I went with the spool valve to increase my boost pressure so I could get more air into it without increasing my fueling, while also improving low end torque while not sacrificing my top end.

Regardless of reasons chose, even without the spool valve, the ATT still ran better than my old GM-3 and I doubt I would ever go back to anything like that. With the 4.10 gears, my trucks sits at relatively high rpm most of the time (2500rpm at 70mph compared to most modern diesels that may be around 1700-1900rpm at 70mph), where the GM-3 really falls off the grid as far as performance goes in that upper rpm range. Like was stated earlier, the ATT may not be perfect for every truck, but it's what the turbo is really intended for that I think should help people choose if they decide to upgrade the turbocharger. Either way, if people are going to start adding a bit of power to the 6.5L, ditching the factory turbo in most instances is a good idea.
 
There WILL BE NO sniping back and forth about this discussion, especially from the USUAL suspects including those who took a long or longer vacation from here or the next vacation will be involutary. We've NEVER had a heavy hand with these discussions in the over 5 years of this forum but every damn member of the staff is all full up on the crap that these kinds of attitudes have fostered. You'll note I've changed my 'just helpin out' user title. It's time to expect friendly.. not ask for friendly.
Carry on gents...
 
All culprits already know who they are. I don't want to ruin a good thread. I'm just trying to keep it just that. A good thread.
 
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