6.7 build. 66mm and modded cp4 - Ford Powerstroke Diesel Forum
6.7 Performance Parts Discussion 6.7 Performance Parts Discussion

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  #1  
Old 07-26-2013, 10:57 PM
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6.7 build. 66mm and modded cp4

So I've had my 66mm on for a while and just installed my modded cp4 today. Install was a lot easier than I expected and I'm very happy with the product. With the pump I'm able to hold rail pressure with more aggressive tunes and the truck runs flawless. With 35" tires my 1/4 mile times before on my minimaxx were 13.3 and today my first run was 12.9 just to give an idea of the difference. I also have room for more fuel and tried a hotter tune but the tranny seemed to slip. I have a new trams tune to try and ill post my results
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Old 07-27-2013, 04:21 AM
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The real question is have you had your butt dyno calibrated lately?
If so please post a graph!!
Glad to hear the good news keep us posted.
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Old 07-27-2013, 05:04 AM
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I'd be curious how much this pushes in comparison to the H&S dual kit.
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Old 07-27-2013, 06:05 AM
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Damn I was hoping for some real 1/4 mile numbers
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Old 07-27-2013, 06:25 AM
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haha no i havent had my butt dyno calibrated. I hate guessing things like this cause i don't want to give a number thats way off. But if i was at 474 on the last dyno i would say im at 525 or so until i can get the bigger tunes to cooperate. Hopefully i can do some more 1.4 mile testing soon because I can come off the line harder than i did the first time.
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Old 07-28-2013, 10:57 AM
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I would take the H&s times with a grain of salt. Not really accurate
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Old 07-28-2013, 05:42 PM
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Quote:
Originally Posted by 06LariatF250 View Post
I would take the H&s times with a grain of salt. Not really accurate
The question is, from a pure comparison stand point, are they consistent enought to be able to see a performance increase?

What I mean is, if you add 50 hp would you see an increase in 1/4 mile times?
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Old 07-28-2013, 06:01 PM
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Quote:
Originally Posted by minzbig22 View Post
The question is, from a pure comparison stand point, are they consistent enought to be able to see a performance increase?

What I mean is, if you add 50 hp would you see an increase in 1/4 mile times?
Who knows?
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Old 07-28-2013, 08:16 PM
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Originally Posted by WoodBoy View Post
Who knows?
That's helpful lol

Don't get me wrong, I would like to see dyno numbers, track times but this might not be such a bad thing to see gains other than "seat of the paints".

Dynos to dyno can be debated as to their accuracy, so if these are consistent (as most accelerometers are) it is a quick way to see those gains quantified.?

Btw, I don't believe he has a 12 sec truck...but did he pick up 3-4 tenths? Maybe?

That's my point.
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Old 07-28-2013, 08:53 PM
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Yea that's mainly why I referenced my before and after times. How accurate they are I'm not sure. But if they are at least consistent it give an idea. Ill get dyno numbers and track times as soon as I can.
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