7.8 Duramax - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 14 (permalink) Old 11-15-2006, 04:28 AM Thread Starter
 
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7.8 Duramax

Just out of curiousity (and this may be in the wrong forum) but has anyone had the opportunity to mess with the 7.8 Duramax? Other than there probably arent as many upgrades for it yet, wouldn't it be a better place to start for lets say a real nice n expensive pulling truck? I'm still learning so if I said something dumb please dont bash. Just curious.
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post #2 of 14 (permalink) Old 11-15-2006, 10:59 AM
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Isn't the 7.8 a straight 6? I don't think anyone has even come out with any chips for it.
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post #3 of 14 (permalink) Old 11-15-2006, 11:55 AM
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The 7.8 is a MD inline 6,I doubt there are many hi performance mods for it.IF someone were to build one up,and give it a lot of fuel and air,Im sure it would quickly tear up the track,and the truck it was in with all that torque

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post #4 of 14 (permalink) Old 11-15-2006, 03:01 PM
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Yeah,it's a strait 6. There was one on Ebay a couple weeks ago I thought about but it's too big for a pickup I think. It had a 7spd Spicer behind it :Thumbup: . It's rated @ 290HP and I think
800+ TQ. With a few Mod's it would run nicely. If it could be purchased in a 5500 4x4 I'd consider one,but it only comes 6500 up.

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post #5 of 14 (permalink) Old 11-16-2006, 02:27 AM
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I wonder if you could use EFI Live on it? I would think it uses the same Class 2 protocols as the 6.6 Dmax.
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post #6 of 14 (permalink) Old 11-21-2006, 02:14 AM
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Quote:
Originally Posted by TheBac
I wonder if you could use EFI Live on it? I would think it uses the same Class 2 protocols as the 6.6 Dmax.
I see some serious potential if so. Better find out : .

01 2500 Duramax/ZF6,returned to daily driver590/995
03 3500 Duramax/Ally S/C IV EFI Live {Brothers truck}
04 3500 Duramax/Ally EFI Live,feed truck with 3 bale Hydra-Bed,very sick trans
06 4500 Duramax/Ally 4x4 Monroe,EFI Live,Danville turbo, CM flatbed
11 2500 Duramax/Ally 4x4 H&S tuned and deleted {GF's truck}
13 3500 Duramax/Ally 4x4 stock for a very short time
Some Green Equipment and a heard of Black Angus cows
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post #7 of 14 (permalink) Old 11-22-2006, 03:45 PM
 
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TS Performance has an MP8 that will work on the 7.8L Somthin like a 30 or 35% increase you might want to check with them.
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post #8 of 14 (permalink) Old 11-26-2006, 05:23 PM
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I read about TS performance boxes. As far as i've read it really doesn't do a whole lot. They tested it on a DT466 (I know, whole other animal) and said that only a very very slight seat-of-the-pants performance feel was added.

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post #9 of 14 (permalink) Old 11-26-2006, 09:56 PM
 
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You should be able to use efi on it, the ram or flash memory is identical, you would have to write a new sub-program for editing fuel maps and such, becuase they are different. Also there is different integrated protocol in the software due to differences from meium duty trucks, to light duty, as no allison tcm command, because they come with different trannys.
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post #10 of 14 (permalink) Old 12-27-2006, 09:14 PM
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Quote:
Originally Posted by Seventy468
Just out of curiousity (and this may be in the wrong forum) but has anyone had the opportunity to mess with the 7.8 Duramax? Other than there probably arent as many upgrades for it yet, wouldn't it be a better place to start for lets say a real nice n expensive pulling truck? I'm still learning so if I said something dumb please dont bash. Just curious.
Hey, I just got the 7.8 Duramax turbo in my C6500. Oh yes it has the pulling power. I will know for sure once I get rid of the speed limiter - rev-limiter. I'm still tring to find performance parts or chips for it.

How crazy is it for someone to try to soop-up a C6500 Box Truck.:evil:

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