Re: Project 67 GMC custom 6.5 turbo diesel
Its been a while. I don't have any new pics, but I'm bringing the truck in to a local shop to have them make sure the injection pump is timed right. This guy deals with many different makes and models of diesels and has some fancy pulse tool to set the timing. I have a hand fabbed exhaust on it, and a passenger side inner fender in it that I butchered horribly (I have another decent one to chop up using this one as a template). I've installed all the rest of the parts that were missing from the truck. Current issue is crankcase vent to remove as much oil as possible from the system so as not to oil down the intercooler, and a more permanent air filter set up. I should have some time to get some new pics posted up later on this week.
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Re: Project 67 GMC custom 6.5 turbo diesel
Got a clean bill of health on the truck. Timing is set at 4 degrees. The tech told me to keep track of my mileage for a couple weeks and stop back in. I put the wipers back on the truck but the arms weren't in the park position so I need to fix that before I take some new pics.
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Re: Project 67 GMC custom 6.5 turbo diesel
Cool deal! I used to vent my crankcase to open atmos below the truck, just to keep the oil resid out of my airbox, but I dunno if that is an option for you.
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Re: Project 67 GMC custom 6.5 turbo diesel
That is what I have going right now, but I found out that I really need to have the stock style set up on this motor, and multiple guys on the dieselplace have mentioned that it will keep seals on the truck, and won't oil down my intercooler. I just need to come up with a suitable air intake and I'll be good.
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Re: Project 67 GMC custom 6.5 turbo diesel
Updates and Pics? :D
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Re: Project 67 GMC custom 6.5 turbo diesel
I finally got mine running today, so hopefully I'll be tooling around in few weeks myself. Can't wait to see the updated pics!
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Re: Project 67 GMC custom 6.5 turbo diesel
subscribed im fixing to start an extra cab 4x4 build and plan on using a 6.2 with 6.5 turbo stuff backed by a 4l80e going to using you and 67_c-30 build pages as a refrence
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Re: Project 67 GMC custom 6.5 turbo diesel
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Re: Project 67 GMC custom 6.5 turbo diesel
Come on man! Weres the updates? I just read the whole thread and am dieing to know how the story ends. What all is upgraded over stock? Got any mileage numbers? I'm interested in doing this swap into my k10.
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Re: Project 67 GMC custom 6.5 turbo diesel
very cool build! I would love to do this to my truck too. I'd have a manual trans in mine for sure. The fuel mileage would have to be pretty awesome too. I had a 94 half ton longbed chevy with a 6.5/auto and it got around 18 mpg but I drove it hard. It would move pretty well too, I could keep up with my buddy in his Z71 especially when the turbo came on. This would be a screamer in a truck as light as ours are. Can't wait to see the update :)
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Re: Project 67 GMC custom 6.5 turbo diesel
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When compared to the SM420 that was in truck, you get huge drops in gear ratio causes lugging going into the next gear unless shift a higher shift point than a diesel likes, or unless you run like 4.10 gears.
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Here is a pic of my 71 suburban and the gmc out front. I also added an in the bed spare tire holder to leave room for a blazer tank under the bed. The exhaust is 3 inch pipe to a stainless custom muffler to a 5" tip down. I still do not have the veggie oil stuff on the truck, and I don't have a boost gauge or pyro gauge yet. I have the boost controler turned down to a safe level. BTW the burb is for sale as I'm relativly confident in this trucks ability. I've towed 5 3/4 complete trucks behind the GMC and it flys. I still have some brake issues to work out but nothing more than a day project.
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Re: Project 67 GMC custom 6.5 turbo diesel
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Current under hood pics.
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Re: Project 67 GMC custom 6.5 turbo diesel
The other issue that I had was alternator related. I found to run one of these alternators the excite wire needs to be run through an idiot light or some other kind of resistor. I blew up the first brand new alt. on the truck but it was under warranty so I just got a new one. The PVC set up is quite important to these motors I found. It sorta keeps the seals in good health, thats why the big red hose. I threw all the original stuff away before I realized I needed it, and thats the best I could come up with on short notice. Its not broken so I'm not fixing it.
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Re: Project 67 GMC custom 6.5 turbo diesel
I had to build the same kinda air cleaner/ crankcase vent on my rig. I ended up blowing all kinds of oil out of the crankcase through that vent canister while doing burnouts..lol Come to find out that lil canister has to have a slight vacuum on it to work properly.
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Re: Project 67 GMC custom 6.5 turbo diesel
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I found this out the hard way on the first 6.2 I turbo'd. On this one, I ran the factory 6.5 CDR tube into my custom/homemade/junkyard scavenged cold air tube!;) |
Re: Project 67 GMC custom 6.5 turbo diesel
BTW, what did you use for the driver's side battery box?
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