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6.4L Performance Parts Discussion What has or has not worked for you?

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post #1 of 14 Old 11-04-2010, 07:34 AM Thread Starter
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Boost loss

I think I have a boost leak on my f250. I have the H&S Blackmaxx and on the Hot Damn tune lately I'm peaking boost at 33-35lbs. When I first got my blackmaxx I would see numbers like 47lbs and even once 50lbs.

Are there any specific areas I should look for the leak at? Or could it be something entirely else thats causing the issues. I already redownloaded the tune and put it on the blackmaxx.

2010 F250 Harley Davidson Edition-

H&S BlackMaxx, Flo-Pro 5" Downpipe back exhaust to a 6" MBRP tip, AFe stage 2 Si Intake
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post #2 of 14 Old 11-04-2010, 08:52 AM
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Originally Posted by Whatcop? View Post
I think I have a boost leak on my f250. I have the H&S Blackmaxx and on the Hot Damn tune lately I'm peaking boost at 33-35lbs. When I first got my blackmaxx I would see numbers like 47lbs and even once 50lbs.

Are there any specific areas I should look for the leak at? Or could it be something entirely else thats causing the issues. I already redownloaded the tune and put it on the blackmaxx.
I would start by checking the silicone boots connecting your intercooler lines. Used to be a common problem on the 6.0/7.3's. Ive even seen intercooler's split on the end caps disconnecting the tubes themselves. Hope this helps.
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post #3 of 14 Old 11-04-2010, 09:18 AM
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This subject brings up a good question.....how much pressure can the stock CAC take before breaking? I don't think I have seen any posts regarding the actual CAC breaking, just the boots splitting or slipping off.
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post #4 of 14 Old 11-04-2010, 10:22 AM
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the boots are what you'll have to worry about, I don't think you'd really have to worry about splitting the pipe

08 F250 CC SB - too much to list

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post #5 of 14 Old 11-04-2010, 10:58 AM Thread Starter
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Ok so I checked everything out and I have 3 leaks.

1) Cold side off the intercooler out to the motor and was pretty small...fixed
2) Cold side into the intercooler off of the turbo and looked to be massive....Fixed...I hope
3) Cold side of the small turbo and I have no idea how to fix it






2010 F250 Harley Davidson Edition-

H&S BlackMaxx, Flo-Pro 5" Downpipe back exhaust to a 6" MBRP tip, AFe stage 2 Si Intake

Last edited by Whatcop?; 11-04-2010 at 11:23 AM.
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post #6 of 14 Old 11-04-2010, 12:14 PM
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Originally Posted by Whatcop? View Post
Ok so I checked everything out and I have 3 leaks.

1) Cold side off the intercooler out to the motor and was pretty small...fixed
2) Cold side into the intercooler off of the turbo and looked to be massive....Fixed...I hope
3) Cold side of the small turbo and I have no idea how to fix it





How many miles tuned?
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post #7 of 14 Old 11-04-2010, 12:16 PM Thread Starter
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Roughly 9000 miles.

2010 F250 Harley Davidson Edition-

H&S BlackMaxx, Flo-Pro 5" Downpipe back exhaust to a 6" MBRP tip, AFe stage 2 Si Intake
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post #8 of 14 Old 11-04-2010, 04:44 PM
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You must run the chit out of that thing.. First ive ever seen of leaking right at the small turbo.. As O2 stated, its usually just boots

2010 CC/SB FX4 Lariat.. Tuned By Eric@IDP and Matt@Gearhead

Thinking about getting rid of the stock 6.7 turbo?
Check this out... and research before buying



http://www.powerstroke.org/forum/6-7...ustration.html

http://www.powerstroke.org/forum/6-7...round-2-a.html
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post #9 of 14 Old 11-04-2010, 04:53 PM Thread Starter
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You must run the chit out of that thing.. First ive ever seen of leaking right at the small turbo.. As O2 stated, its usually just boots
Oh I do beat the piss out of it. Lets put it this way, I'll need new tires at 20,000 miles because they will be bald.

2010 F250 Harley Davidson Edition-

H&S BlackMaxx, Flo-Pro 5" Downpipe back exhaust to a 6" MBRP tip, AFe stage 2 Si Intake
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post #10 of 14 Old 11-04-2010, 06:34 PM
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That has got to be the biggest pain the replace that oring between the turbo's.

2010 Ford F250 CCSB Afe stage 2 si, Spartan 300,310,350 tunes, 5" flow pro down pipe back straight pipe,powerstroke67 ceramacoated downpipe, powerstroke67 Cold side pipe, Afe intercooler, Turbo socks, and a lot more to come.
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