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The centermounted H1 turbo is not actually a GM-8, it is called a GM-5 or something like that. But it is a much smaller lower boost turbo that could feed an ATT in theory. I get what you are saying but from my knowledge the ATT has a dual spline compressor wheel that acts kinda like having...

Slim makes a good point. You may loose that low end power to some degree but it will make up for it in the mid to upper power ranges. All in all I find the turbo to be a great investment for any 6.5 owner.

Well I found that because each 6.5 has slight differences in how high the engine sets as well as side to side position. It makes the aFe system not fit perfectly in every 6.5. In my 1995 K2500 it fit perfect, in 635's truck it needed major modifications to fit. So if you are planning on going...

This would be a very good test, I don't know if I would have the time to do it but the truck I am working on for 635 would be a perfect platform for the test of all major programs on the market. So if I have the time and can convince the powers that be to donate a PCM each for the test I think...

If it were me doing it I would first invest in a 4 plunger marine pump that has been tuned up a little before going with a larger turbo. That way your bottom end power doesn't fall short on you.

I also wanted to post a better picture of the aFe Stage 2 intake now that it is clean. The filter is not aFe, I replaced it with a larger unit from S&B filters. The S&B filter has more filter pleats, better flow rates, and overall better filtration. I did some fab work to the aFe intake to make...

I had them preset it to 15 psi from the factory but it is one of there new units with the adjustable pressure regulator built in so we can fine tune it if need be. We are also going to be running a Danin Optix fuel pressure gauge to monitor fuel pressure on the fly. I found when running the...

I will try to keep this as short winded as possible. :smile5: Now that I am feeling a little better I was able to get a little work done today on the truck, and no my wife didn't bug me one bit. ):h She actually likes to watch me work on vehicles, I hope that is a feeling that lasts! I...

Ok, so I am finally back after a very long weekend plus I had some things to do for the Navy early this week. 635 and I ran the truck very hard and found no turbo oil issues, however it is a new thing we are doing so if we do sense any issues with it we can simply upgrade the line size. We used...

It is but the ID is still larger than the oil feed line so the turbo is not having any issues.

So here is the deal. I have been writting for a few different diesel publications over the past few years and have convinced a few different magazines of the importance of keeping new and fresh info on the 6.5L vehicles and the community of people that support these fine trucks. So my question...

Oh yeah, well public education. You know how it goes with spelling! And sorry to Turbine Doc, I am sure he will bring it up next time he calls to chat. I believe 635 is getting the dyno for much of the day, so here is what we plan to do with that time. Baseline run: Diesel only w/ ATT...

Here are a few pics I promised of the new braided turbo oil return line installed and working great. We decided to use a flexible braided stainless line in order to keep the oil away from having to return through the passage tube between the exhaust manifolds. Plus in my opinion and I think 635...

Not sure what you mean by the comment?

The new turbo has a little slower spool up and seems to max the gauge out at 15psi so we need to put a larger boost gauge on to see where we are at. I have not run any of the drugs to it yet so I antisipate creating even more boost when we add nitrous, propane, water/meth, and now possibly...

Ok so I figured I would give you all an update as to the trucks progress. I finally got all the parts I needed to finish the turbo install and fired up the truck for the first time last night. Everything sound great! I will be driving it today to get the turbo settled in and then it is on to the...

I didn't realize there were two others doing such projects, I would love to see what they are doing. Please have them post pics or any info if they could. Like I said any truck I can help get some print on is always good for the 6.5 community.

He meant Joe was filling the water tank in the back of Bill's rig with unfiltered water out of a gas station hose. I know it sounds funny but any water other than pond or ocean water will work just fine in these new systems.

This truck does belong to 635. Since I am going into the Navy in Dec. I sold him all my parts as well as hooked him up with some connections I had for other parts like the AirDog system, Snow upgraded pump, Filtration Solutions filters, ext. I don't mind someone taking my record down if I am...

I have always used regular water with either window washer fluid -20* or Snow Boost Juice. The water gets used fast enough to where it really doesn't make a difference.