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The Best Stock Turbo Manifold?

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Old Apr 24, 2009, 12:29 PM
  #151  
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Soooo...who's the tyrant among these manifolds?!?!
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Old Apr 28, 2009, 06:35 PM
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Originally Posted by leecavturbo
has a point^

which manifold....................................price......... gain........ whp/$
BR ported and jet coated stocker........... 275......... 10........... 27.5
ProStock manifold:.................................. 980......... 25........... 39.2
Shearer manifold:..................................1120......... 30........... 37.33
Not sure if anyone else noticed but this isn't an accurate way to gauge WHP/$.

According to your math, if the Buschur ($275) gains 5whp it would beat them all at 55 whp/$.

The correct term would be $/WHP (dollar per WHP) and the lower the number the better
Last edited by VRSF Tiago; Apr 28, 2009 at 06:43 PM.
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Old Apr 29, 2009, 12:19 AM
  #153  
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any feedback on maxford manifolds? I saw a member selling one in the bm, looked better than the meagen
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Old Apr 29, 2009, 03:00 AM
  #154  
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hafe cast manifold is a t3 flange and not for any turbo out there sorry. Unless they made a new one I havent seen even then an all around one fits all manifold cant be to good seeing the stock turbo is twin scroll and most others are going with a t3.
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Old Apr 29, 2009, 08:20 AM
  #155  
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Originally Posted by tvieira24
Not sure if anyone else noticed but this isn't an accurate way to gauge WHP/$.

According to your math, if the Buschur ($275) gains 5whp it would beat them all at 55 whp/$.

The correct term would be $/WHP (dollar per WHP) and the lower the number the better
I don't think this is relevant for a couple reasons. The first are the claimed values are subjective to too many factors, ie build of car, dyno, dyno conditions, and who's testing. More importantly, an exhaust manifold might show a peak gain in hp at some rpm but lose more across the power band than the gain is worth. Matching short fat runners might make more high rpm power, but another design might be targeted to mid or low range and show lower peak gains.
While peak numbers are one data point to measure performance, it's a ridiculous comparison because it tells so little of the story.
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Old Apr 29, 2009, 08:31 AM
  #156  
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This is true but without seeing any graphs the $/WHP is a good way to gauge peak gains in a manifold.
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Old Apr 29, 2009, 12:08 PM
  #157  
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hopefully EPM mani will take over this thread... good info inside though... great job with the calculations ect
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Old Apr 29, 2009, 12:24 PM
  #158  
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Originally Posted by *constant_boost
hopefully EPM mani will take over this thread... good info inside though... great job with the calculations ect
They'll have to make it fit in an evo engine bay first
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Old May 20, 2009, 04:19 PM
  #159  
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cmon! does anyone have the borla mani?I am looking to buy one soon.i found one for $250.Is it worth it?I am running a stock 9 turbp with bolt ons and a tune.Will this help with spool up,throttle response down low,or just mid-up top? heres a pic its bea-utiful! http://www.jscspeed.com/evo/exhaust/borla_header.htm
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Old May 20, 2009, 06:26 PM
  #160  
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Here's some pics of my Shearer manifold...

Name: IMG_0173.jpg Views: 0 Size: 86.3 KB

Name: IMG_0172.jpg Views: 0 Size: 82.8 KB

Name: IMG_0171.jpg Views: 0 Size: 111.7 KB
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Old Sep 6, 2009, 08:14 PM
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Old Sep 6, 2009, 08:15 PM
  #162  
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Originally Posted by detroit pistins
bumpp
What are u bumping this for? For me to update the OP? haha thanks Ali...
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Old Sep 6, 2009, 08:23 PM
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lol no trying to see if any has any dyno #'s. bringing it back wont hurt i guess
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Old Oct 31, 2009, 09:28 PM
  #164  
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Originally Posted by Full-Race.com
robotic tig welds FTW the JM Fabrications looks like a nice manifold though.

hi have a doubt, my cousin just bought his evo 8 and he only have exhaust and cold air intake. now he want a manifold but how much can we expect or gain (whp). consider that the evo is almost stock .thank
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Old Jan 16, 2010, 10:29 PM
  #165  
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Originally Posted by abazaba410
I would love to get a full race mani but I cant justify spending even over $300 on a manifold. Im too broke. The uptop gains would be nice though
You are in the wrong business. If you can't justify spending $300 on a header for your Evo just don't justify having one Evo at all. Like you said, if you are too broke then I suggest you change cars (something cheaper).

I justify money on a car part when it deserves it.

Carlos
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