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post #1 of 9 Old 06-14-2010, 04:44 PM Thread Starter
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Boost?

How come the new 6.7l doesn't run as much boost as the 6.4l or the 6.0l? My 6.0l has seen 35 pounds when I was towing on a stock turbo. Now the 6.7l uses around 25? Can somebody explain that too me?

"It's not leaking oil, it's sweating power!"

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post #2 of 9 Old 06-14-2010, 04:49 PM
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More efficient turbo maybe??

2002 f250 BFT Edition


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post #3 of 9 Old 06-14-2010, 06:50 PM
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More efficient turbo... multi injections... giving the competition a chance..???

Driving: 2011 Pale Adobe...F-350 CC 6.7 FX4 3:55-Locking Rear End-Dual Alternators-premium Lariat, moon rf, added wheel flares, 2-tone black base

Picked up 4/29/10 as of 06/20/2012 109,000+miles
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post #4 of 9 Old 06-14-2010, 07:10 PM
PMR = JUNK

 
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Boost and power are not directly tied to each other. They are related in a turbo diesel but can vary greatly. Even though its "only" 25 psi, its very likely still flowing more air than a 6.0 at 35. CFM is what is important. Boost is more or less just a measure of restriction.

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2000 F-250, forged rods, 38r turbo, BTS trans, hutch mod, TW tuning and Bad Night Special 50 horse Caterpillar injectors



Quote:
Originally Posted by alberta 7.3 View Post
Yeah, I'd probably feel a bit drained after firing twice in rapid succession.
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post #5 of 9 Old 06-15-2010, 09:10 PM
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Quote:
Originally Posted by Jake View Post
Boost and power are not directly tied to each other. They are related in a turbo diesel but can vary greatly. Even though its "only" 25 psi, its very likely still flowing more air than a 6.0 at 35. CFM is what is important. Boost is more or less just a measure of restriction.
my sentiments kerzactly.. now just think about the power when the turbo gets pushed to 35-40 lbs by a tuner.. gonna be AWESOME!!!

09 white fx4, icon leveled..37x12.50 toyo mt,20in rockstars,spartan 275,4in tbe,s@b intake
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post #6 of 9 Old 06-15-2010, 09:12 PM
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ha ha i want to ride in one

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post #7 of 9 Old 06-16-2010, 04:20 AM
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Yea, it's kind of like this:
There's 55 lbs of air in my 35" truck tires, but 60 lbs in my bicycle tires.

More pressure doesn't mean more air.

Mark

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post #8 of 9 Old 06-16-2010, 05:50 PM
PMR = JUNK

 
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Good comparison.

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2000 F-250, forged rods, 38r turbo, BTS trans, hutch mod, TW tuning and Bad Night Special 50 horse Caterpillar injectors



Quote:
Originally Posted by alberta 7.3 View Post
Yeah, I'd probably feel a bit drained after firing twice in rapid succession.
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post #9 of 9 Old 07-05-2010, 07:26 PM
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Is the truck faster, is it more efficient? Yes and Yes so who cares how much boost it has...
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