Worth selling my 6.4 for a 6.7? - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 9 (permalink) Old 02-06-2011, 03:17 PM Thread Starter
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Worth selling my 6.4 for a 6.7?

Even though the 6.7s only have one turbo will they still be as fast as the 6.4's in the end when all the high horse power tunes get finalized and everything? And how is the fuel milage with a straight piped and tuned 6.7? Even with my 40s and lift i still get 15 to 16 mpg all around with my 6.4... Just want to make sure im making a good decision before i sell my truck.

2008 f250. Spartan 275 Afe stage 2 intake and a 5 inch flow pro exhaust. sittin on some 24s
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post #2 of 9 (permalink) Old 02-06-2011, 06:04 PM
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In stock form the new ones are way nicer.
Nicer interior, easier steering, smoother ride, quieter, more power, better mpg.
Bit to be honest I kinda regret trading my 6.4.
My new one has little issues like defueling when tires spin. Yes even with TC off.
Front wheels don't always turn in 4x4. Nox senders fail in cold weather, does hold speed as well goin down hill with load on.

Love the new one. Just doesn't seem as solid as my old one
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post #3 of 9 (permalink) Old 02-07-2011, 01:46 PM
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I'd wait. Next year the 6.7 is getting an upgrade to 400hp and 800tq.....I might be trading my 08 next year And they will probably have some of those bugs listed above worked out then too.

04 Dodge 2500 QCSB 4x4 5-sp, Quadzilla Ardenaline, AFE Stage 2 Intake, Diamond Eye 4" straight pipe TBE, SBC 550HP clutch, T-rex leveling kit, Bilstein 5100's
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post #4 of 9 (permalink) Old 02-07-2011, 02:56 PM
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Quote:
Originally Posted by xlstroker View Post
I'd wait. Next year the 6.7 is getting an upgrade to 400hp and 800tq......
so when you say "next year", don't you mean 5 months ago?

Travis
---------------------------------------------------
2011 F350 SRW CC/SB 4x4 Lariat 6.7 PSD Dark Pearl Metalic

1974 Bob'd Deuce on 16.00-20 XZLs, locked front and rear, hydro steering, front and rear winches, 5.9CTD/nv4500, hydro-boosted disc brakes

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post #5 of 9 (permalink) Old 02-07-2011, 02:58 PM
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Yep. My apologies. I JUST saw something yesterday about the upgrade.

04 Dodge 2500 QCSB 4x4 5-sp, Quadzilla Ardenaline, AFE Stage 2 Intake, Diamond Eye 4" straight pipe TBE, SBC 550HP clutch, T-rex leveling kit, Bilstein 5100's
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post #6 of 9 (permalink) Old 02-07-2011, 03:33 PM
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the new 6.7 still have a version of a compound turbo set up, it uses a 2 sides compressor with a single variable turbine, so it is "similar" to what the 6.4's have but in a smaller more expensive package.

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post #7 of 9 (permalink) Old 02-07-2011, 03:39 PM
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here is a cut away picture of the 6.7 turbo, look at the 2 sided compressor and a turbine that looks alot like the 6.0's
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post #8 of 9 (permalink) Old 02-08-2011, 11:39 PM
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a definate improvement vs last generation.. we are also getting better mpg's, and the power is much better... Go for it, you will be extremely happy..

2011 F350 LWB CC 3.55's GPS Lariat personal truck
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post #9 of 9 (permalink) Old 03-03-2011, 03:16 PM
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It is never much of an economic question to trade.

If you are having no trouble with the 6.4, you got lots of warranty left, and you don't have money to burn.. don't bother.

But if you want the bling...
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