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Go Back   SR20 Forum > Main Forums > SR20VE / SR16VE
Reload this Page Custom header making of...



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Old 06-24-2005, 03:27 PM   #1 (permalink)
greek vvl

 
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Custom header making of...
Today I decided to make a custom header with a friend. Actually he made it.
It is 4-2-1 and diameter is 45-50-60.
Here are some pics of the construction

http://tinypic.com/69oo6h.jpg

http://tinypic.com/69ool3.jpg

http://tinypic.com/69ooz9.jpg

Pics of the final fitment and dyno results will follow soon.


Bill
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Old 06-24-2005, 03:43 PM   #2 (permalink)
70/30 Racing
 
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is that reduction bent?
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Old 06-24-2005, 03:50 PM   #3 (permalink)
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Quote:
Originally Posted by Rockwood
is that reduction bent?
looks that way to me.
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Old 06-24-2005, 03:51 PM   #4 (permalink)
greek vvl

 
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Sorry Steve,
My english suck.
What is 'reduction bent'?

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Old 06-24-2005, 03:57 PM   #5 (permalink)
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Quote:
Originally Posted by bill
Sorry Steve,
My english suck.
What is 'reduction bent'?

Bill
The inner diameter is not constant. It gets smaller where the bends are from the pipe being crushed.
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Old 06-24-2005, 03:58 PM   #6 (permalink)
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Yes, that's right.
Is this a big problem?

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Old 06-24-2005, 04:49 PM   #7 (permalink)
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To HP junkies like Rockweed and Mike....yes it is a problem.

Nothing a boost controller can't overcome.
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Old 06-24-2005, 04:59 PM   #8 (permalink)
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Quote:
Originally Posted by SERprise In WV
To HP junkies like Rockweed and Mike....yes it is a problem.

Nothing a boost controller can't overcome.
lol, that's going to accomplish a LOT on an NA car greg, sh*t.

damned boost monkies... oh wait.
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Old 06-24-2005, 05:40 PM   #9 (permalink)
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Not to sound rude , but why would u make a "CUSTOM" header, that is 4-2-1 ? then on top of that make it reduce? You might as well buy one of those baby dick header's from ebay........ Imo....
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Old 06-24-2005, 06:32 PM   #10 (permalink)
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hes in Greece, thats why no ebay junk header for him!

Nice job all in all, next time get some mandrel bent tubing, it keeps the ID the same thru the bends.
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Old 06-24-2005, 06:34 PM   #11 (permalink)
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I was wondering what you guy's used for the flange.. did you have any problems keeping it straight? On stainless if I put that much heat on one side there is no chance of me keeping it flat.
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Old 06-25-2005, 05:08 AM   #12 (permalink)
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Crush bends like that will make it sound not so good, it will "rasp" quite badly.

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Old 06-25-2005, 10:09 AM   #13 (permalink)
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Good job, atleast you guys are trying something new. Please give before and after dynos.
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Old 06-27-2005, 08:33 AM   #14 (permalink)
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Final result...

http://tinypic.com/6fsjgl.jpg

http://tinypic.com/6ft44m.jpg

Installation done Saturday morning just before leave for the truck (14,7@96.25mph).


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Old 06-27-2005, 02:34 PM   #15 (permalink)
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Bill any dyno to see the gains or loss
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Old 06-27-2005, 07:31 PM   #16 (permalink)
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What mph did you used to run at the truck before the header?
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Old 06-27-2005, 07:37 PM   #17 (permalink)
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That was his first time ever at the track.
http://www.sr20forum.com/sr20ve-sr16ve/99363-ve-hp-1-4-time-thread-4.html
Look at the last post.
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Old 06-27-2005, 07:49 PM   #18 (permalink)
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nice work bro. its nice to see some one stepping up and making something that they cant get. although next time try mandrel bends and you should see a bit more of an improvement.
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Old 06-28-2005, 12:46 AM   #19 (permalink)
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Quote:
What mph did you used to run at the truck before the header?.......That was his first time ever at the track.
http://www.sr20forum.com/sr20ve-sr16ve/99363-ve-hp-1-4-time-thread-4.html
Look at the last post.
I'm still not sure what he ran before the header?
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Old 06-28-2005, 02:54 AM   #20 (permalink)
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That is what I am telling you. He hasn't been to the track before the header. It was his first time at the track.
Last edited by jer_760 : 06-28-2005 at 04:19 AM.
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