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-   2007.5-2013 6.7L (http://www.competitiondiesel.com/forums/forumdisplay.php?f=134)
-   -   4th gen over 1000 HP ,best year ? (http://www.competitiondiesel.com/forums/showthread.php?t=200696)

Mazak 07-21-2018 06:16 PM

4th gen over 1000 HP ,best year ?
 
I am considering building a 4th gen. over 1k HP.

Is there a better you for doing this ? And why ?
Will change tranny to a 48RE whatever year it is.

Mazak 08-10-2018 10:57 PM

I got a 2011 in sight. Pre def. Assume it's a good year ???

Red Sleeper 08-11-2018 06:10 AM

Doubtful you will go wrong with any 4th gen you purchase. If your goal is 1,000 hp, the engine will be on a stand getting fortified anyways. Just make sure the rest of the isn’t falling apart around it.

FWIW, I’ve read a few times that folks want pre 2013 blocks. Not sure why. Gone are the days of the #53 block and issues of sort.

Poulina 08-11-2018 09:32 AM

1997

xDiesel03 08-11-2018 09:39 AM

2012 has a terribly designed traction control system that gets really annoying with that kind of power. 2011’s don’t have it so that would be my recommendation.

KeepCalmBoostOn 08-11-2018 11:59 AM

2010s don't have traction control either. As another year option.

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Poulina 08-11-2018 08:49 PM

If you plan on swapping in a 48re immediately maybe try to find a g56 truck. Not as much of a hassle and you can get some return on investment by selling the g56

DDually 08-12-2018 10:02 AM

Quote:

Originally Posted by Poulina (Post 2677414)
If you plan on swapping in a 48re immediately maybe try to find a g56 truck. Not as much of a hassle and you can get some return on investment by selling the g56

Why is it less of a hassle? I have a G56 truck and want to go to a 48RE at some point.

Poulina 08-12-2018 11:58 AM

Adapter plate is the same also

DDually 08-12-2018 04:34 PM

Quote:

Originally Posted by Poulina (Post 2677443)
Adapter plate is the same also

Nice! Good to know thank you

QMFB 08-12-2018 05:03 PM

Quote:

Originally Posted by blackmega3500 (Post 2677436)
Manual ecm already in place.

Manual flash is insignificant in the scope of a 1,000hp build.

QMFB 08-12-2018 05:03 PM

Quote:

Originally Posted by Poulina (Post 2677443)
Adapter plate is the same also

This ^^^^^

Mark Nixon 08-12-2018 05:29 PM

Quote:

Originally Posted by Red Sleeper (Post 2677370)
...FWIW, I’ve read a few times that folks want pre 2013 blocks. Not sure why...

I have a good idea where this fallacy came from and I am going to kill this MYTH, right here, right now. :)

The 2008 6.7 has the EXACT same block casting number(s) as a 2017, so if there's something wrong with late blocks, it's likely a problem with the early ones, as well.

I've torn down multitudes of them, no one seems to have any specific issue that I can see as an inherent flaw in their casting or machining process.
No tendencies to crack here, or have casting flaws there, or missing casting material from foundry issues.

This fish story is akin to the 12/24 valve rod strength/vs C.O.M. BS that's still floating around out there.

Mark.

Red Sleeper 08-13-2018 05:51 AM

Thanks Mark. I figured you’d chime in about this and clear the air.

Mazak 09-16-2018 08:21 PM

Well that 2011 did not work out.
Now i am looking at a 2014 regular cab due to having rear coil springs and prairie pearl coat paint.
I have never saw a single cab with that paint color.

CorneliusRox 09-17-2018 09:02 AM

I'd say 2010 or 2011. They don't have traction control, and they both have the five link front suspension instead of the new radius arms.

Other than that, you're not going to see much difference performance wise.

If you went with a 2014+ truck, you do get coil springs in the rear though. That's a better platform to start with if you want to get into playing with spring rates and coilovers.

I'd still recommend the 2010-2011 based on cost and performance though. You can get clean ones for around $25k.

Mazak 09-17-2018 09:42 PM

Quote:

Originally Posted by Poulina (Post 2677414)
If you plan on swapping in a 48re immediately maybe try to find a g56 truck. Not as much of a hassle and you can get some return on investment by selling the g56

How much can I get from a g56 as compared to selling the 68 ?

CorneliusRox 09-18-2018 08:39 AM

From prices I've seen floating on craigslist, facebook, and forums, you can get a lot more for a stock 68RFE than a stock G56.

I would have previously agreed it's easier to start with a G56, but there's pretty simple tuning now. You could even return the truck to stock tuning, have a dealer flash a cal for manual, and then go from there.


Another option would be an A1000. Not popular, but there's plenty of DMax guys that make them last around 1,000hp and still have a solenoid based 6spd auto.


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