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Old 09-01-2006, 07:03 PM
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6.2 diesel

I recently purchased a 1984 3/4 ton 6.2 diesel for a 1000 bucks wasn't running and needed the head gasket replaced. That was a chore but is running good now. Put a 4 inch procomp lift and some 33 inch tires on it. Looks great. love the gas mileage but it runs like a snail. I fabbed a cold air intake. Looking at blocking off the egr next. I heard that turning up the pump can also help. Can anybody explain how to do this. Is this simply increasing the timing a bit or turning up the psi??? I would appreciate any additional tips for tuning. Also thinking about installing a Banks turbo when my budget allows. I love the 6.2 despite what some people say. Sure it ain't no Duramax but they don't make non turbo diesels like they used to. I think it's a tough runner.

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Old 09-02-2006, 01:05 AM
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I have a diesel truck and have ridden in a 6.2 chevy, yes they are a major slug as are all non-turbo diesels....but they run a long time. The Banks Sidewinder turbo kit is very well engineered and adverizes 60 hp and 115 lb.ft. of torque but remember thats the BEST they got out of it on thier dyno with thier guys doing the install and tuning it. Like the disclaimer says "your results may vary". AND the kit costs $2400 bucks. I,ve heard you can do some things to the injector pump but to get the real scoop go to PERFORMANCEDIESEL.com, its the BD diesel website and the have a question/answer forum like this one but strictly for diesels.
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Old 09-02-2006, 08:14 AM
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I work in a pump shop and we rebuild those pumps all the time. It is very hard to turn the fuel up on a 6.2 with it in the truck, but you can do it. On the side of pump there is a little window with a cover on it. 2 little screws hold this cover on. This cover is about 1 1/2 by 1 remove this cover. Now you will have to turn the engine by hand very slow and an allen screw head will come into the window. Turn this allen screw in 1/8 turn. This will give you about 10% more power. DON"T turn it any more than that as it could cause the engine to run hot and burn pistons. Replace the cover and you are good to go. When you remove that cover all the fuel will run out of the pump, so it will be hard to start when you put it all back together.

To block off the egr get an intake manifold set for a 1 ton truck, and manifold gasket will block the egr for you.
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Old 03-03-2011, 05:06 PM
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hey

i would recommend leaving yor truck as stock as possible i turned the pump up and literally blew my motor apart
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Old 03-03-2011, 06:41 PM
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The cranks in these engines, and the 6.5s, are weak. Leave it stock like said before.
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Old 03-03-2011, 06:41 PM
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Dam, old thread. Bullrider, you tricked me into it!
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