Jump to content

Regular Cab 8.1


BigJayDogg3

Recommended Posts

Posted

O.K. I was talking with some friends of mine, and the topic of making a big power truck. I was thinking along along the lines of getting a regular cab regular bed to save on weight, and getting a 2500 with the 8.1, getting a free flowing exhaust and then, yep you guessed it, supercharging it, then getting a dyno tune. What I want to know is: what else could I do to get more power? Is this a good idea? All comments and suggestions are welcome.

 

 

 

:crackup: I like this one. Carry on with the convo.

Posted

Yes you would need larger injectors with forced induction. I'd run a small shot of nitrous to go along with the blower/turbo. I didn't know regular cab short bed 2500's existed. :tumbleweed:

 

Edit: If your wanting to go F.I. your going to want to tear the motor apart and get forged internals IE. Crank, Rods, Pistons ect. Unless the 8.1 can handle forced air well, or your not running a lot of it. I'd save up 10 grand before starting this project.

Posted

8.1L are notorious at my depot for breaking crankshafts. We have 60 of these trucks with propane converted big block top kicks and once every other week we've had one go down with a busted crank lately. The mechanic was saying he doesn't know what's going with these things but the 7.4L never had these problems and they never drank oil like the 8.1L does.

If your going forced induction on a motor like this I would tear it down and beef it up if you put the larger injectors in there. Just my .02 cents.

Posted

Makes sense. I'm not actually going to do it, I was just shooting the breeze with friends, and though this would be a good idea for a "go fast" project.

 

As for the 2500 RC/RB setup, I think(about 80% sure)that I have seen a couple. But I am willing and able to admit I am incorrect about that one.

 

Also I know the 8.1 would prob. be better on the higher end of things, but what do you think would run better the 8.1 or the Dmax?

 

I've also seen water/methanol kits for diesels, what is that about? Why go through all kinds of trouble to keep water out, only to purposly introduce it?

 

EDIT: I just checked Chevrolet's site, and for the 2007 classic there is no RC/RB. I would have sworn that I have seen a few of them though. Oh well.

Posted

if you don't look at the $$, the DMax has been built by several people to the 1000+hp/tq marks. I think Gale Banks is getting ready to start selling 875hp crates. Along with send and return 875HP rebuilds. I haven't been able to see of the shows, on Extreme 4X4 they had a Urban Suburban project and stuffed a 800+ Banks DMax in it.

Posted
if you don't look at the $$, the DMax has been built by several people to the 1000+hp/tq marks. I think Gale Banks is getting ready to start selling 875hp crates. Along with send and return 875HP rebuilds. I haven't been able to see of the shows, on Extreme 4X4 they had a Urban Suburban project and stuffed a 800+ Banks DMax in it.

 

Yeah that thing is sweet, and it really pukes out the black smoke. :tumbleweed:

In the newest diesel power magazine some guy built a duramax that makes over 1000 hp at the rear wheels and he says he can get 1200 when he gets the turbos dialed in. :D

Posted

Since you just want to talk about sick diesels, the numbers weren't as high, but on Pimp My Ride, they dropped a D-Max into a Impala. While the color scheme isn't what I would have chosen, that car was stupid fast.

Posted
Since you just want to talk about sick diesels, the numbers weren't as high, but on Pimp My Ride, they dropped a D-Max into a Impala. While the color scheme isn't what I would have chosen, that car was stupid fast.

 

 

Sorry i got a little of track but I did see that car in a magazine... just think about following that car, and then to see it blow a bunch of black smoke. I'd be thinkin :cheers: WTF, and pretty soon I'd think WOW, that thing is awsome.

Posted

I guess this is the off-topic part... maybe that means you can just say really random things in a thread. somthing like, June 16th was 100 days ago. :cheers:

Posted

O.K. I want to change this topic. What is your dream vehicle. I'll go first. Currently it is an 01-02 Silverado RC/RB stepside with the 5.3 and 3.73s. Preferably in the Blue Indigo (or whatever it was called then). And as long as I'm dreaming, I also want an International CXT. :cheers:

Posted

My dream vehicle would be an 02' reg. cab long box 2500 HD with 6 in stacks and a Duramax built to a mild 800 hp, with a 6 speed manual. It would have a 6 in lift and some 37 in mud terrians.

Or a copy of copperhead, an awsome 67? C10 Stacey built on trucks a few years ago.

Archived

This topic is now archived and is closed to further replies.

  • Latest Articles

  • Posts

    • Are you using a weight distribution hitch system with your trailer as that alone can change the actual tire pressure requirements needed. It would prove interesting to see what the actual individual axle weights are on your truck when you are hooked up to the trailer. In fact when your hooked to the trailer, typically if anything unless it has a large capacity weight distribution system that is over cranked, often the weight on the front axle will be less when hooked up vs driving empty and certainly if one doesn't have a weight distribution hitch. Really the only times one may get up there with weight on the steer axle is if there was a snow plow mounted on the front or a motorcycle on a rack or with a very large jockey tank full of fuel at the front of the box that transfers a bit of its weight to the front axle.    And of course your tires carry more weight for a given tire pressure due to their size vs a stock sized tire so there is that to take into the equation as well. 
    • Great info here thank you. I just joined, we have a 2014 Silverado truck we bought about 4 years ago with less than 5,000 miles on it. It has approximately 24,000 on it now. It appears to have all the standard issues that people are talking about. Occasional charging problems especially using 110 volt, occasional blinking triangle where nothing will turn on when first starting the truck but it will reset itself if you wait 10 to 15 minutes. Noisy coupler between the flywheel and the generator. Our truck is speed limited to 74 mph, is there any way to change that? The latest issue we have been dealing with is when driving long distance on the highway at full speed the generator does not keep the batteries charged. The meter will go into the yellow/red border Zone for charge status and the yellow triangle will illuminate solid but the generator will not keep the battery charged, not sure why the controller doesn't tell the gas engine to increase RPM to increase generator output it usually stays well below 25 kilowatts even though the battery is discharging and I have to slow down the highway to 45 mph and eventually pull over and let the truck idle to charge the battery so I can continue driving at speed. Has anyone had this issue before or have any idea how to diagnosed it? When via Motors was around it they were very helpful at troubleshooting. This becomes much if the Terrain is hilly and you're towing a small trailer
    • I have the GMC accessory (REV) cover installed by dealer. Ordered with the truck.  They did a very good install job, can't find a single issue. Some water gets in around the tailgate but no where else.  You can see daylight around the tailgate but that's not the covers fault.  Installation is means everything. Guys at my dealer were seasoned pros, not inexperienced here today good tomorrow types, like many dealers employ for these jobs.   I don't mind paying for a professional job.    
    • Like others have said, they will all leak. Mainly at the corners.   I have owned several and the best has been my current one. Revolver x4
    • About 8 months after an alignment job by the dealer I started experiencing a pretty significant clunk in the front end on hard left hand turns usually parking lot speeds almost at lock.  Occasionally get the same on hard rights too.   Discovered that the lower control arm attachment bolts are TTY and only to be used for a single use. And then I found some evidence of a TSB that indicates you can over torque those fasteners to about 130 foot pounds.   Asked a local shop to investigate and they found 3 out of four bolts loose and retorqued.   I've ordered the MOOG    K100421 lower control arm bolt kit that is completely reusable and not TTY.    Is the 80 ft pounds a realistic number?  Anyone have experience with those bolts?
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...