I told you I would do it... I just picked up all the 10 feet of 304 stainless steel pipe I will need to build my... oh wait, I haven't told you yet: I'm dumping my exhaust manifolds, and building stainless steel headers for a twin turbo setup on my 6.5l diesel.
I drove to the supplier and ordered up all the 304 stainless steel 90's and 45's I should need, they cost around $130 CDN, and will be in tomorrow. I got the 10' of 304 stainless steel pipe for $100 CDN, prices were cheap because we have a place here that specializes in alloys. All piping is schedule 10S, and a secret size.
I still have to get the 304 stainless steel plate for the flanges, I'll probably just have the machine shop cut it out of some of their stock.
I'm going to buy another GM-8 turbocharger too, and another Turbo-Master as well. I'm going to try and set it up so that I can just order two 3" down pipes, and they will fit both sides, I don't know if it can be done, but I'll try.
The hp numbers I listed are from Stanadyne and they are conservative because of concerns for pump life at higher outputs. If someone would start selling DB4s for our trucks we could reach a new plateau of power. 300hp seems to be the absolute highest output from a DS4. With all the new blocks and cranks and pistons available for our engines a DB4 could get us up to and over 400hp, as peninsular has proven. I want to hear a 6.5 with twins, Bill Heath has yet to give us the video of his land speed truck.
I agree on everything that you've said as far as a DB4 pump. With all the options available for new blocks, cranks, heads, and pistons that means the venture for making a higher output 6.5 is there. Somebody does need to offer a DB4 mechanical pump for sale to the public. They could offer the DB4 injection pump with the front timing cover as a kit. About a week and a half ago I emailed Penisular to ask them about the mechanical pumps they offer and got a reply back from Matt Koning. I specifically asked if they offer a mechanical DB4 pump that would support 350-400 HP. I also asked about a turned up DB2, as I knew that they offered one and was curious what they'd say in the reply email. In his reply Matt said in his exact words that they have a DB2 pump that will deliver 90cc of fuel for 350-375 HP. Penisular makes the pump for special applications, having a special head and rotor assembly is the only other thing he mentioned. What does a stock 6.5 turbo DB2 pump deliver as far as cc? I just don't think a DB2 could make that power, but I could be wrong. That is where the DB4 pump comes in and it would be the best bet for making the most power and you could avoid running two injection pumps (as some may not want to do it that way). The DB4 injection pump would be the closest thing to a P7100 pump in the higher fuel output world. Wouldn't be cheap, but guys have to fork out $1600-1700 for high output Cummins P7100 pumps. I really think a DB4 pump should be offered for sale to the 6.5 performance scene and that sure would be exciting!
For less money & a small amount of time,in comparison, to the twin turbine feat of unknown results you can get the steadman/turbine doc turbo stuff .Check it out.
For less money & a small amount of time,in comparison, to the twin turbine feat of unknown results you can get the steadman/turbine doc turbo stuff .Check it out.
Or you can try something new and unique for once that still has strong theory and tons of potential behind it.
Really gets annoying where you can't see a single thread in the 6.5 forum with the word "turbo" without some saying just get an ATT. Not that the ATT is bad or anything, but can we just friggin lay off it already? I have nothing against the ATT, but I'm just so tired of every thread that has anything to do with a 6.5 turbo becomming a plug for the ATT. People go in threads barely related to the ATT at all saying it's better. This is one example. What does someone wanting to do twin turbos have to do with the ATT? Nothing other than it's a more efficient turbo option for the 6.5.
I don't know about anyone else, but I want to see people with innovations instead of everyone saying "Well, Slim and TD came out with this turbo. Let's forget about turbos and move on now."
Took some pictures of the fittings I've got right now. As you can see in picture number two all the fittings are made in Canada, same with all the pipe. I'm most likely going to need more fittings, but this is a good start. I also have 10' of 304 stainless steel pipe. The next pictures I post, should be of the flanges all cut out and ready for some welding.
I am very interested in this project, I think it is great, that someone has the gonads to spear head a project like this with his own initiative, Keep it coming Chevyinlinesix, do your own thing don't listen to anybody but yourself.
And if you want help sizing a turbo for your project let me know I will help you get the right numbers and housing for your project. I think the gm 4 would be a good place to start and it will be easy to get 2 of them for a reasonable price. God forbide that someone helps someone else out, I hope that nobody gets offended by this. SHEEEZZZZ, age does have it's advantages, after thirty the small stuff doesn't matter, not full of piss and vinegar past that age if you learn anything.
Yeah, just fabbing up the headers and dual exhaust is a great improvement, and will blow a single anything away. It would be nice to get headers to buy.
chevyinlinesix with your twin turbo set up.....what Compressor wheel sizes are the turbos you are running?? and be sure to have a check on drive pressure when you are done
Hi. I have dun this. I have 6.2 and 6.5 twin turbo .the 6.2 exploded on me but 6.5 still going strong 250 hp got photos but don’t know how to upload to site???
Hi. I have dun this. I have 6.2 and 6.5 twin turbo .the 6.2 exploded on me but 6.5 still going strong 250 hp got photos but don’t know how to upload to site???
it looks like this set up in on a marine motor? correct me if im wrong cuz i might be. it just looks like the way a buddy and i put twins on a 350 marine motor.
Yeah, they use them on john deere. if I could get ahold of the buddy of mine weho used to work with me I could tell how to make one work.
I know he did it back in late 80's. we had alot of time in the shop to play around. the guys put a head and rotor setup from some type of db4 pump into a db2 housing.
I have no idea, i didn't watch them do it. Don;t know how much machine work they did to make it fit. We had a full machine shop in house at the fuel shop at the time.
I know back also at the same time a place in Dallas/Fort Worth area called 'Metro Fuel' was working on same thing, and built a twin turbo 5.7L diesel. the one guy came to work for me got trained there.
maybe someone knows somebody who worked there in late 80's?
I haven't been able to find none of the guys for over a year now.
i remember heath pointed out bracing going from turbo flange to motormounts for support on website. think using pass side manifold on driverside would give you idea on clearence issues, could use threaded rod to raise. chevyinlinesix is your engine pulled, and if not, have you got your intake installed yet. these should look pretty good from work on intake, look like should be heavy enough to take turbo heat. i wonder what you got coming next. stay safe.
I've been debating bolting on an HX35 over the GM-5 my has on it now. How's the flow on that over the flow on the GM-5. I get a haze at WOT(sometimes less) even running 13-14 psi sustained boost.
Actually I just reinstalled my cracked engine yesterday, what a pain. But now I have been cutting, bending, moving, and removing stuff to give me lots of room to work with. My intake manifold is still at the place to get coated (hopefully it will be done Tuesday), but I will be doing a test fit with it in the truck. I was amazed at how much more room there is now, I'll take a picture and post it once I get the flanges done.
I've also figured out where I'm mounting both turbos, from the center of the exhaust ports to the exhaust flange on the turbo, will be approximately 20" in height, putting the shaft of the turbo about in line with the top of my intake manifold.
Since neither my intake manifold nor my turbos will fit under the hood, I'm making a custom hood for it. From the two body lines on the hood (which are approximately 15" in from the outside edges) I will be raising the whole center section up about 6". Similar to the '06 Chevy truck's hoods, but taller. I believe they call it a "power dome" hood.
Just got a call from the machine shop Justin, like one minute after I PM'd you.
Yes! Got the stainless steel flanges back from the machine shop after being water-jet cut. Total cost for work (which included materials) was $135 CDN I gave them a slightly modified exhaust manifold gasket to use as the basic design, and have them cut it out of 3/8" thick 304 stainless steel.
First picture is just showing all the flanges laying on the bench, while the next two pictures show how smooth the cuts are (very impressed). Last picture I just have the 90 deg. fittings sitting on a flange, approximately how they will be oriented.
So glad these came out right, I'm probably going to start working on it tonight.
You guys are going to be :whip: me along anyways, so I figured I'd better get used to it by giving myself a hard first :whip:
Just got a call from the machine shop Justin, like one minute after I PM'd you.
Yes! Got the stainless steel flanges back from the machine shop after being water-jet cut. Total cost for work (which included materials) was $135 CDN I gave them a slightly modified exhaust manifold gasket to use as the basic design, and have them cut it out of 3/8" thick 304 stainless steel.
You guys are going to be :whip: me along anyways, so I figured I'd better get used to it by giving myself a hard first :whip:
That's not too bad cost wise actually.... I guess I'll have to clean the muck out of the waterjet at work for the next week and get our shop's opperator to cut me some out of some scraps
I already talked to our production manager, and he knows what I wanna do :
Any word on that GM-8 you were after? If you still need one, and wanna rebuild the spare one I have, I'll donate it to the effort.
Now.... Quit slackin and start stick`n! :whip::weld: Lol
All that metal looks real nice. I think I may have found a way to squeeze another turbo under my hood too without a huge cowl.
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