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Old 02-18-2017, 03:35 PM   #51
blurred
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Quote:
Originally Posted by Dr. Ill View Post
In for independent dyno numbers.

Comparing the two, I like the MAP collector a lot more than the KillerB. Less aggressive angle so should be less 'lossy'
Compared to the cast killerB collector. The original hand made one has the awesome low angle merge.
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Old 03-06-2017, 04:49 PM   #52
eterenity11
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In for result...
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Old 03-08-2017, 12:34 AM   #53
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In for result...
Me too... I'm over here like:

Where the results at???

Peace
-TurboTod
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Old 03-08-2017, 08:47 AM   #54
maperformance
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Sorry guys. It's a busy time of year for us. We finally started on it however, and should be shipping it soon!



Quote:
Originally Posted by TURBOTOD View Post
Me too... I'm over here like:

Where the results at???

Peace
-TurboTod
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Old 03-08-2017, 03:04 PM   #55
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^ Nice. This is what I like to see!! Keep it goin'! Let's get some results in from Prime!!

Peace
-TurboTod
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Old 03-09-2017, 09:10 AM   #56
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Quote:
Originally Posted by Dr. Ill View Post
In for independent dyno numbers.

Comparing the two, I like the MAP collector a lot more than the KillerB. Less aggressive angle so should be less 'lossy'
Merge angles come into play much more with N/A applications. the biggest mistakes I see with turbo Subaru headers is people applying N/A design principles to pressurized manifold. N/A and pressurized manifolds will benefit from their own unique ideal design characteristics.

Of course it can be overdone. The FA headers coming onto the market are a perfect example of horrible merge collectors. At some point, you are forcing gasses into other primaries, which is not ideal for unrestricted flow.

Quote:
Originally Posted by blurred View Post
Compared to the cast killerB collector. The original hand made one has the awesome low angle merge.
If you mean our previous gen vs the newer cast gen, they are exactly the same in regards to the merge angle.

Where the cast collector really shines is in that it is a true high velocity merge collector. This is something that cannot be accomplished with tubing. Prime can chime in here, but IIRC we picked up ~15whp and a decent amount of response swapping to the newer casting design. I expected 3-5whp, so that was a pleasant unexpected surprise, and something we've never outwardly advertised. This was on one of our shop cars that at the time was ~400whp.

We've got a backlog right now, but I do have a lightly used latest version on the shelf if Prime needs one for comparison. Let me know.
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Old 03-10-2017, 08:56 PM   #57
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Quote:
Originally Posted by KillerBMotorsport View Post
Merge angles come into play much more with N/A applications. the biggest mistakes I see with turbo Subaru headers is people applying N/A design principles to pressurized manifold. N/A and pressurized manifolds will benefit from their own unique ideal design characteristics.

Of course it can be overdone. The FA headers coming onto the market are a perfect example of horrible merge collectors. At some point, you are forcing gasses into other primaries, which is not ideal for unrestricted flow.
But whats nice and different about this design as opposed to others is that they actually establish flow direction instead of one runner blowing into the opposing.

Last edited by gordon_2456; 03-10-2017 at 11:00 PM.
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Old 03-10-2017, 11:27 PM   #58
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Great! This is what I like to see!! Keep it goin'! Let's get some results in from Prime! I hope it will grow
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Old 03-11-2017, 03:33 PM   #59
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Jr keepin it REAL.

Seriously though I don't know who they think they're fooling with 70whp gains over another aftermarket header... oh wait there's actually a handful of dudes on this thread that got bamboozled


Also user, what about the most conniving and evil company in the industry no longer in existence?
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Old 03-12-2017, 11:54 AM   #60
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Quote:
Originally Posted by gordon_2456 View Post
But whats nice and different about this design
Quick google search and you'll see the design isn't new, it's been around.

AFE makes one that can be found for less than $600



Here's a fab shop version

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Old 03-12-2017, 02:43 PM   #61
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Looking forward to results
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Old 03-12-2017, 02:49 PM   #62
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Quote:
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Can you show a pic of the inside of the merge collector?
This.
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Old 03-12-2017, 02:50 PM   #63
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Quote:
Originally Posted by KillerBMotorsport View Post
Quick google search and you'll see the design isn't new, it's been around.

AFE makes one that can be found for less than $600



Here's a fab shop version


He's right, you know
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Old 03-12-2017, 05:26 PM   #64
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Quote:
Originally Posted by KillerBMotorsport View Post
Quick google search and you'll see the design isn't new, it's been around.
AFE makes one that can be found for less than $600
How are these in comparison with Tomei Expreme ?
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Old 03-12-2017, 10:15 PM   #65
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Quote:
Originally Posted by gordon_2456 View Post
But whats nice and different about this design as opposed to others is that they actually establish flow direction instead of one runner blowing into the opposing.
Quote:
Originally Posted by wrxsti15 View Post
How are these in comparison with Tomei Expreme ?
It's what we've always recommended for those on a budget looking for an EL header. They make decent power over stock, and have a good reputation regarding longevity. I can't say how they compare to the headers advertised here, as we only have comparisons to our own.
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Old 03-12-2017, 10:22 PM   #66
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How much of an effect do the multiple joint welds have on flow and does having the brace welded from the exit to the header flange put any undue stress on the assembly at higher temps, from expansion? Do the welders smooth each joint on the inside as they go? I remember seeing the full race header and thinking how awkward they looked with all of the welds, and wondering the same.
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Old 03-13-2017, 09:32 AM   #67
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I personally don't think we are trying to "fool" anybody. We were told by this company that they would produce some third party testing. These are the results they provided us. Which is why I sent another one to Jr. free of charge for more testing. Pretty simple

Quote:
Originally Posted by billyfishsticks View Post
Jr keepin it REAL.

Seriously though I don't know who they think they're fooling with 70whp gains over another aftermarket header... oh wait there's actually a handful of dudes on this thread that got bamboozled


Also user, what about the most conniving and evil company in the industry no longer in existence?
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Old 03-13-2017, 12:15 PM   #68
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This thread is on drugs.
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Old 03-13-2017, 01:30 PM   #69
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This thread is on drugs.
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Old 03-13-2017, 02:32 PM   #70
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Lol Agency Power aka vividracing the most criminal, conniving aftermarket company still in existence

I would also love to be a candidate as an independent tester for these headers. I'll get IAG to put them on the dyno and run it on my modified set up and compared it to my trusty GTSpec EL headers that I've logged 110k miles on

If they produce awesome results, I will channel my inner Mormon and spread the praises from the highest of mountains to the lowest of lands - via the interwebs.

Here is my setup http://www.iwsti.com/forums/gr-membe...000-miles.html (my name comes up as a google suggestion )
*still crickets*
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Old 03-14-2017, 12:18 AM   #71
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Quote:
Originally Posted by 2slofouru View Post
How much of an effect do the multiple joint welds have on flow and does having the brace welded from the exit to the header flange put any undue stress on the assembly at higher temps, from expansion? Do the welders smooth each joint on the inside as they go? I remember seeing the full race header and thinking how awkward they looked with all of the welds, and wondering the same.
back purge. no issues on the inside.
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Old 03-14-2017, 01:34 PM   #72
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Originally Posted by silvercookie View Post
This thread is on drugs.
the power gains are inflated much like a guy on steroids
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Old 03-14-2017, 02:09 PM   #73
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My car is a temple - only sustainable, organic parts go on it
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Old 03-14-2017, 03:27 PM   #74
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Correct. Which is why I sent another manifold to Jr.

Quote:
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the power gains are inflated much like a guy on steroids
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Old 03-14-2017, 05:40 PM   #75
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Originally Posted by 99WRXEJ20 View Post
back purge. no issues on the inside.
If it were only that easy

How good is the fit-up? Having this many welds is good and bad. A benefit is that it allows you to move things around to compensate for manufacturing deviances. A bad side is there are WAY more opportunities for less than perfect fit-up. Another bad thing is the fit-up will not be ideal. Look at the pics. Everywhere a straight tube leg meets a bend, there is a size difference. That's not only on the outside. That's because when tube is formed, it goes out of round and the wall will thin and thicken. It doesn't matter if you use mandrels made by NASA, stubbing a straight leg to a bend will do this and no matter how good the welder is there will be a transition where they meet. The ONLY way around that is by forming primaries/secondaries from a single tube. Another benefit is cost. When you buy off-the-shelf elbows, straights, flares, etc... it's way less expensive than investing in custom tooling testing and repeat.

Even if this header doesn't make power up to it's claims, if the quality and long-term reliability are there, then the price will make it a good seller.
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