Boost PSI ?
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Freshman User
Joined: Jan 2012
Posts: 30
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From: Phoenix, AZ
Boost PSI ?
Hay all what kind of boost psi are you getting on your truck. I am getting 20 psi. This just seems a little low. My 7.3L use to get about 23 stock and 28 with a tuner. My truck seems to not have the 0 to 60 speeds as my old truck. Just seems to be lacking some thing.
Post Fiend
Joined: Apr 2004
Posts: 5,158
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From: North of Salt Lake City
Hay all what kind of boost psi are you getting on your truck. I am getting 20 psi. This just seems a little low. My 7.3L use to get about 23 stock and 28 with a tuner. My truck seems to not have the 0 to 60 speeds as my old truck. Just seems to be lacking some thing.
Lead Driver
Joined: Apr 2011
Posts: 7,302
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From: Edmonton Alberta
I have seen up to 38 PSI tuned pulling a 12k trailer up 9% grade on one of H&S early tunes. Subsequent tunes seem to have brought that down a bit. In the cab it sounds like you are standing in front of a turbine (with aFe intake
A WFO pull on hot will get you into the low 30's I believe...
Thanks
A WFO pull on hot will get you into the low 30's I believe...
Thanks
Elder User
Joined: Jul 2010
Posts: 642
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From: herriman utah
spiking to about 21 is what I see, I am really surprised at how little boost these trucks run at considering the power. my '06 dodge tuned and producing similar power to my stock ford would spike to around 35 psi. one thing I have noticed is the ford seem to have ALOT of grunt and acceleration initially but once the revs get up there its all gassed out. thats a hint to me that HP on these trucks could be raised substantially without changing anything down low. imagine if they added more fuel from 2700 to 3200 rpm that could easily push these trucks to 500 horse, but in the normal rpms we use the trucks it would not make a difference.
Lead Driver
Joined: Apr 2011
Posts: 7,302
Likes: 1,153
From: Edmonton Alberta
spiking to about 21 is what I see, I am really surprised at how little boost these trucks run at considering the power. my '06 dodge tuned and producing similar power to my stock ford would spike to around 35 psi. one thing I have noticed is the ford seem to have ALOT of grunt and acceleration initially but once the revs get up there its all gassed out. thats a hint to me that HP on these trucks could be raised substantially without changing anything down low. imagine if they added more fuel from 2700 to 3200 rpm that could easily push these trucks to 500 horse, but in the normal rpms we use the trucks it would not make a difference.
Thanks
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Freshman User
Joined: Jan 2012
Posts: 30
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From: Phoenix, AZ
Thanks. I guess I need to get use to my new truck. I havent pulled my 5th yet to see how this truck will handel it. All I hear is good things with the 6.7L.
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From: So Cal
I saw in the high 30's with my 6.0 and my 6.4.
on this, I don't think its ever gone over 22, even pulling 14K up a serious grade.
like others said, this engine does a lot more with a lot less boost.
on this, I don't think its ever gone over 22, even pulling 14K up a serious grade.
like others said, this engine does a lot more with a lot less boost.
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