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> 7-AFE Custom 4-1 Headers, UPDATE WITH DYNO CHARTS!! 56K Warning
post Oct 27, 2006 - 5:57 PM
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94celicadude



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ok well here goes;

My dad and i have been wanting a correct 4-1 header for our 7-afe for a long time, we have finally gotten around to making one. We used the plate that attaches to the engine from a Aerospeed header, so yes that was salvaged for parts. Then we had a shop bend up some pipes, all equal length. To be precise they are 37" long and they are calculated to be the length for the best performance gain at peak power, so then it falls right back into the peak torque and off you go again. So anyways, after about 3 weeks of work here is the result. All the welding except for the tacks in the before pictures was done by me, and the wrapping of the system was done by my father and I. The collector was purchased from Pegasus Motorsports, and the rest of the pieces were purchased or salvaged from our old 4-2-1 headers. Sorry for the number of pictures but i figured people would like to see it in detail from many angles. I am hopefully going to finish installing it on mthe car this weekend, so if i get a hold of a camera with sound ill try to take a sound clip of it with just the headers, cuse i know it sounded badass before it was welded. ENJOY!!!!!


IPB Image
IPB Image
IPB Image
IPB Image
IPB Image

This post has been edited by 94celicadude: Aug 29, 2007 - 7:02 PM


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post Oct 28, 2006 - 1:41 AM
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Bitter

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well you could have just thrown a 10-15 degree bend and cleared everything, its a shame those are crushbends tho. it'd be nice if you made a 2nd version with mandrel bend stainless steel.

honestly, the ebay header isnt bad at all, it looks like you have one on your car (in the signature) infact! its the same layout as stock 4age and 7afe headers are in other countries. same cylinder matching and same runner length, just stainless steel. same as the obx, megan, and several other 'brands', just the ebay ones cost $100 instead of $300. with my ebay header i have a NICE pull above 3500 rpm, 4000 rpm is great, and it pulls the whole way till it shifts, then i'm back around 4000 rpm with more pull once again.

This post has been edited by Bitter: Oct 28, 2006 - 1:43 AM


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post Oct 30, 2006 - 2:40 AM
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ExSane

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QUOTE(Bitter @ Oct 28, 2006 - 1:41 AM) [snapback]496991[/snapback]

well you could have just thrown a 10-15 degree bend and cleared everything, its a shame those are crushbends tho. it'd be nice if you made a 2nd version with mandrel bend stainless steel.

honestly, the ebay header isnt bad at all, it looks like you have one on your car (in the signature) infact! its the same layout as stock 4age and 7afe headers are in other countries. same cylinder matching and same runner length, just stainless steel. same as the obx, megan, and several other 'brands', just the ebay ones cost $100 instead of $300. with my ebay header i have a NICE pull above 3500 rpm, 4000 rpm is great, and it pulls the whole way till it shifts, then i'm back around 4000 rpm with more pull once again.


Tiag tiag los? I didn't know a header makes that much of a difference. I was gonna stick with stock for a while but then again there is that major restriction on exhaust flow. Just better throttle response? How about the gains? Do you feel any improvement in power besides response? Also, I was gonna go after 4-1 headers instead of 4-2-1 becuz of the exhaust flows better.


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post Oct 30, 2006 - 1:13 PM
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pure_dx



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QUOTE(ExSane @ Oct 30, 2006 - 2:40 AM) [snapback]497505[/snapback]

Tiag tiag los?


what nationality are you?

i have a 4-2-1 header, i wouldn't put a 4-1 header on our fe heads, 94celicadude, tell us how it goes

This post has been edited by pure_dx: Oct 30, 2006 - 1:14 PM
post Oct 30, 2006 - 7:39 PM
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ExSane

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QUOTE(pure_dx @ Oct 30, 2006 - 1:13 PM) [snapback]497595[/snapback]

QUOTE(ExSane @ Oct 30, 2006 - 2:40 AM) [snapback]497505[/snapback]

Tiag tiag los?


what nationality are you?


I'm american. laugh.gif


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Posts in this topic
- 94celicadude   7-AFE Custom 4-1 Headers   Oct 27, 2006 - 5:57 PM
- - 94celicadude   i will also post a dyno sheet once the car is all ...   Oct 27, 2006 - 6:48 PM
- - Bitter   it looks nice, like Rippmods longtube for the mits...   Oct 27, 2006 - 7:47 PM
- - n1ckz0r   a good question that i am now facing.   Oct 27, 2006 - 10:39 PM
|- - Bitter   QUOTE(n1ckz0r @ Oct 27, 2006 - 10:39...   Oct 28, 2006 - 12:37 AM
- - 94celicadude   we had it bent so the oil filter will just about s...   Oct 28, 2006 - 1:35 AM
- - Bitter   well you could have just thrown a 10-15 degree ben...   Oct 28, 2006 - 1:41 AM
|- - ExSane   QUOTE(Bitter @ Oct 28, 2006 - 1:41 A...   Oct 30, 2006 - 2:40 AM
|- - pure_dx   QUOTE(ExSane @ Oct 30, 2006 - 2:40 A...   Oct 30, 2006 - 1:13 PM
|- - ExSane   QUOTE(pure_dx @ Oct 30, 2006 - 1:13 ...   Oct 30, 2006 - 7:39 PM
|- - 94celicadude   QUOTE(pure_dx @ Oct 30, 2006 - 6:13 ...   Oct 31, 2006 - 12:07 AM
- - Alex-UKSC   looks ace, mine needs some heat wrap as the bay ge...   Oct 30, 2006 - 1:18 PM
- - 6gcSTVT   Since you made a damn good looking header any inte...   Oct 31, 2006 - 12:33 AM
|- - 94celicadude   QUOTE(6gcSTVT @ Oct 31, 2006 - 5:33 ...   Oct 31, 2006 - 12:39 AM
- - ExSane   OMG. I didn't recognize that one of the piping...   Oct 31, 2006 - 2:44 AM
|- - 94celicadude   QUOTE(ExSane @ Oct 31, 2006 - 7:44 A...   Oct 31, 2006 - 8:43 PM
- - pure_dx   ^some dyno sheets too if ya dont mind   Oct 31, 2006 - 8:54 PM
- - 94celicadude   will put them up as soon as i get them.   Nov 1, 2006 - 12:54 AM
- - 94celicadude   sorry to bring this one back from the dead, but i ...   Jan 10, 2007 - 3:42 PM
- - Bitter   what kind of gains does the butt dyno show?   Jan 10, 2007 - 4:06 PM
|- - 94celicadude   QUOTE(Bitter @ Jan 10, 2007 - 9:06 P...   Jan 10, 2007 - 4:09 PM
- - playr158   very cool looking and nice work, congrats! bt...   Jan 10, 2007 - 4:17 PM
|- - 94celicadude   QUOTE(playr158 @ Jan 10, 2007 - 9:17...   Jan 10, 2007 - 4:27 PM
- - Batman722   looks good installed. I would just be concerned ab...   Jan 10, 2007 - 4:51 PM
- - slow94st   dude that is the nicest header i have ever seen, t...   Jan 16, 2007 - 4:30 PM
|- - 94celicadude   QUOTE(slow94st @ Jan 16, 2007 - 9:30...   Jan 21, 2007 - 9:53 PM
- - FreddyTheOthaMeat   Anyone else not able to view the pics?? im at wor...   Jan 22, 2007 - 3:49 PM
- - 94celicadude   well here comes the thread from the dead, but just...   Feb 20, 2007 - 11:51 PM
- - netrata   Nice Let us know how it turns out.   Feb 21, 2007 - 12:14 AM
- - 94celicadude   Well, went to the dyno and got the car tuned, didn...   Feb 21, 2007 - 9:03 PM
- - Batman722   so just so we are clear...you got 6 more hp and no...   Feb 21, 2007 - 9:58 PM
|- - 94celicadude   QUOTE(Batman722 @ Feb 22, 2007 - 2:5...   Feb 21, 2007 - 11:20 PM
- - dagreat1   hmm wanna make another set?   Feb 21, 2007 - 10:27 PM
- - Bigmeanbulldog55   That's not bad. Those are some smooth lines. ...   Feb 21, 2007 - 11:35 PM
- - Rayme   REALLY nice header!.. but This sadly proves th...   Feb 22, 2007 - 12:00 AM
- - 94celicadude   thxs for positive comments guys, but dyno really s...   Feb 22, 2007 - 12:54 AM
|- - Bigmeanbulldog55   QUOTE(94celicadude @ Feb 22, 2007 - 12...   Feb 22, 2007 - 11:20 AM
|- - 94celicadude   QUOTE(Bigmeanbulldog55 @ Feb 22, 2007 - ...   Feb 22, 2007 - 7:25 PM
- - Bitter   the ebay header seems to wakeup around 3000RPM and...   Feb 22, 2007 - 6:09 PM


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