Header Installation

Installations instructions for MonsterFlow intakes, Big Brake Kits, shocks and more.

Re: Header Installation

Postby Brian » Tue Jul 03, 2018 8:42 am

Doing torque in pattern from center outward with torque wrench right? Assuming so, check a second torque wrench to see if it agrees, we are never having even one leak with any brand of header with our installs here. Racing Beat flanges in particular are rarely flat because they are cast and yet we always get them installed without leak and the secret is just working with fresh gaskets from the middle nuts to the sides and it will seal right up every time.
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Re: Header Installation

Postby OpusMX5 » Wed Jul 11, 2018 9:58 am

From Installation instructions: "but buyers of ceramic versions should chase the threads on header outlet with 10x1.25 thread chaser to clear coating from threads"
This is my first ceramic coated header and I'm surprised this simple sounding step, requiring a special tool, isn't done at the factory. I have never heard of or used a 'thread chaser' and am not sure where to buy one. Can I just use a tap and die set?
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Re: Header Installation

Postby Brian » Mon Jul 16, 2018 10:31 am

OpusMX5 wrote:From Installation instructions: "but buyers of ceramic versions should chase the threads on header outlet with 10x1.25 thread chaser to clear coating from threads"
This is my first ceramic coated header and I'm surprised this simple sounding step, requiring a special tool, isn't done at the factory. I have never heard of or used a 'thread chaser' and am not sure where to buy one. Can I just use a tap and die set?


Check a 10mm bolt through the hole, likely nothing has to be done.
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Re: Header Installation

Postby OpusMX5 » Mon Jul 16, 2018 5:02 pm

Brian wrote:
Check a 10mm bolt through the hole, likely nothing has to be done.


Thanks Brian. I already figured out how to make a chaser and it worked quite easily, but removed such little material that a plain bolt may have done the job too. :lol:
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Re: Header Installation

Postby ChanceS905 » Tue Jul 17, 2018 4:02 pm

Nd factory manifold hitting valve cover wont just lift straight up. About to lose temper lol
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Re: Header Installation

Postby ChanceS905 » Tue Jul 17, 2018 4:24 pm

had to use a slide hammer on the rail pinch weld
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Re: Header Installation

Postby BryanH915 » Sun Apr 07, 2019 8:45 am

I installed the header, Helmholtz mid and Super Q recently. What a really nice and well built exhaust system!!

I found a nice, fairly clean way to keep the O2 wires away from the header.

First remove the black/forward O2 sensor connector from it's mount near the alternator, then zip tie both the O2 extension wires to the steel brake line going to the right front wheel.

I then installed a "post" in the cross over part of the frame that is near the header. You will find about 3 10mm holes in the cross over. You can put about an 8" "post" through one of them and secure it to the cross member. I used a battery J hook, threaded a nut/washer on it, inserted it in the hole, and then secured it with a nylock and washer. Make sure the post does not touch the body of the car.

This "post" now gave me a second mounting spot for the O2 wires. I zip tied both O2 wires onto this post.

Routing the O2 wires this way gives you a secure mount that will keep your O2 wires off and away from the hot header!

Sorry Brian, I can't figure out how to post a photo as the photo would be worth 1000 words. I can email you a photo if you want to post it.

Cheers
Attachments
HS1.jpg
HS2.jpg
HS3.jpg
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Re: Header Installation

Postby Brian » Sun Apr 07, 2019 10:13 am

Thanks for the post, send us pic and we can post it for you to your post.

Brian
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Re: Header Installation

Postby BryanH915 » Mon Apr 08, 2019 6:56 pm

Ok, will send you some photos.

A couple of other tips I forgot to mention;

Regarding the heat shield that uses 3 bolts to secure it. This shield is a bugger to get the front and centre bolts off, so when I reinstalled the shield, I mounted it on top of the body instead of underneath. All you need to do is either drill the centre bolt hole out a little bigger or place a couple of washers on the "nut", then you can bolt the shield on from the top instead of the bottom.

I found the best way to line up the exhaust tips was have header, midpipe slip joint and muffler bolts loose, one buddy keeping an eye on the tips and another buddy moving the midpipe to get the tips aligned. My car needed the midpipe pushed to the right side of the car to get the tips aligned.
Once tips are aligned I found it best to tighten the muffler first, then the midpipe and finally the two bolts/springs at the header.

The one question I have is;

Does this system (catless header, Helmholz mid and Super Q) usually give a pop on upshifts?? If I upshift at about 3-4000rpm, every upshift I get a pop??

Cheers
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Re: Header Installation

Postby BryanH915 » Wed Apr 10, 2019 1:56 pm

Brian, can you flip the top pic once clockwise please?

Cheers
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