PPE vs the Copycats ..........

Jan 28, 2015
961
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Ohio
Would be nice if bd made a drivers side and passanger side kit as ld go with that. Haven't any any luck with tapped stock manifolds. Even the one that a machine shop drilled and tapped. Has a small crack after 6 months. None of them leaked alot but enought to bug me.
 

MarkBroviak

DMax Junkie
Vendor/Sponsor
May 25, 2008
2,134
464
83
Danville Indiana
Would be nice if bd made a drivers side and passanger side kit as ld go with that. Haven't any any luck with tapped stock manifolds. Even the one that a machine shop drilled and tapped. Has a small crack after 6 months. None of them leaked alot but enought to bug me.

I put it in the uppipe myself and have better luck with them.
 

PureHybrid

Isuzu Shakes IT
Feb 15, 2012
3,494
474
83
Central OH
My new race truck is running this with a stock LB7 uppipe on passenger side cause nothing else will fit it and I'm not worried at all.:thumb:

NEW race truck!?!

Would be nice if bd made a drivers side and passanger side kit as ld go with that. Haven't any any luck with tapped stock manifolds. Even the one that a machine shop drilled and tapped. Has a small crack after 6 months. None of them leaked alot but enought to bug me.

What size are you tapping them to? 1/8npt or 1/4?

I've never had one crack, at 1/8npt
 
Jan 28, 2015
961
0
0
Ohio
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1/8" npt. The cracks aren't huge but enough to bother me . Just one of those things where I feel it is worth the money to upgrade while it is already apart for a upgraded charger. Usually I could careless about the price but I will be having another back surgery here shortly so any money I can save will help me while im down for 3+ months again.
 
Jan 28, 2015
961
0
0
Ohio
That's not the issue but appreciate the insight. Im just gonna put one in the up pipe as mark suggested until i get a set from rick on the way.
 

Bdsankey

Vendor
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Feb 1, 2018
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Larsen, Wisconsin
That's not the issue but appreciate the insight. Im just gonna put one in the up pipe as mark suggested until i get a set from rick on the way.

You'd be surprised but that is exactly your issue. NPT is a tapered thread. The farther you tighten the fitting in the more force it is putting into the manifold to try and expand the hole causing internal stress in the manifold.

I didn't put a bunch of torque on mine and I never had a problem in 40k miles cracking or backing out.
 

MarkBroviak

DMax Junkie
Vendor/Sponsor
May 25, 2008
2,134
464
83
Danville Indiana
:thumb:

How mad is Brett going to be if it's faster than the C10 :rofl:

It won't even be in the same ballpark since he has been 8.34 @ 4500lbs and I am still going to run an Allison and this truck has only been 9.06 so far. Brett has dropped a ton of weight and is picking up a ton of HP! He will go deep into the 7's quickly and I hope to be able to break into the 8's with this beast but have a lot to learn with it.
 

ikeG

Oughta Know Better
Apr 19, 2011
2,465
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63
Western PA
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New set of PPE's I just installed. They are good quality but just some slight fitment issues
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