Alpha Werks Headers Dyno and Technical Info
I
Joined: Nov 2004
Posts: 3,865
Likes: 58
From: Chicago Suburbs
Just a little update to my resonance comment. I might be the only one with this problem. But either way, with or without resonance, the power increase these headers give you make you all forget about it. It's well worth what you pay for.
Lead Footed
Joined: May 2001
Posts: 3,415
Likes: 15
From: Plano - Texas
Originally Posted by FastAcura
Just a little update to my resonance comment. I might be the only one with this problem. But either way, with or without resonance, the power increase these headers give you make you all forget about it. It's well worth what you pay for.
Ruf
Banned
Joined: Aug 2002
Posts: 5,045
Likes: 0
From: Miami, FL
Originally Posted by RUF87
Comptech came out with some insert tips to stop the droning . . . . do they work with the Catback exhaust or can you use them with stock exhaust?
Ruf
Ruf
Lead Footed
Joined: May 2001
Posts: 3,415
Likes: 15
From: Plano - Texas
Originally Posted by car_lost
his resonance has to do with the headers, not the exhaust.
As I remember the tip inserts helped provide just enough back pressure to reduce the resonance/droning.
Anyone have them and can say for sure?
Ruf
Intermediate
Joined: Sep 2004
Posts: 45
Likes: 0
From: US
R+D Follow-up question
When I say that R+D is in the details it is literally that. Many products look the same because of the restrictions that fitment places on the design.
I do not know what others companies headers are made out of, but ours are real 100% t-304 stainless-steel. Additionally, you have to look at the welds and the seals that are created by the gaskets. If you have leaks you have less efficient performance. We were very particular about this aspect of system during the R+D process. In the end the hp gains are attributed to the flow characteristics and the bends on the inside of the piping and the quality of the seal created to ensure that flow stays constant and uniform.
Each time we put it to test flow, changes are made that even we can't decipher the difference. What we have to do is mark each version 1, 2, 3, 4, etc. to know which one made the best flow and then the most power in mating with the engine because even we can't tell the difference many times.
To demonstrate how identical different versions of headers look alike during the R+D process, take a look at our 350z headers below. The one on the left is our USDM version and the one on the right is the original JDM piece from Alphawerks. Not even I can tell the difference except for the number we scratch into each flange during R+D.
If I have any random R+D pieces left over from recent testing I will post them if anyone wants me to really go the extra mile. Remeber all these parts come from Alphawerks Racing Development to us and we make sure that their JDM applications fit the USDM models. Additionally we test every piece for fit, seal, flow and power delivery to assure they back up their claims. If the Alphawerks Racing Development didn't make the power then we ourselves would not be involved in even distributing the product.
Good question though and I hope I have answered it sufficiently...
Victor D.
www.nexusindustry.com
I do not know what others companies headers are made out of, but ours are real 100% t-304 stainless-steel. Additionally, you have to look at the welds and the seals that are created by the gaskets. If you have leaks you have less efficient performance. We were very particular about this aspect of system during the R+D process. In the end the hp gains are attributed to the flow characteristics and the bends on the inside of the piping and the quality of the seal created to ensure that flow stays constant and uniform.
Each time we put it to test flow, changes are made that even we can't decipher the difference. What we have to do is mark each version 1, 2, 3, 4, etc. to know which one made the best flow and then the most power in mating with the engine because even we can't tell the difference many times.
To demonstrate how identical different versions of headers look alike during the R+D process, take a look at our 350z headers below. The one on the left is our USDM version and the one on the right is the original JDM piece from Alphawerks. Not even I can tell the difference except for the number we scratch into each flange during R+D.
If I have any random R+D pieces left over from recent testing I will post them if anyone wants me to really go the extra mile. Remeber all these parts come from Alphawerks Racing Development to us and we make sure that their JDM applications fit the USDM models. Additionally we test every piece for fit, seal, flow and power delivery to assure they back up their claims. If the Alphawerks Racing Development didn't make the power then we ourselves would not be involved in even distributing the product.
Good question though and I hope I have answered it sufficiently...
Victor D.
www.nexusindustry.com
Banned
Joined: Feb 2004
Posts: 12
Likes: 0
From: Phoenix
Originally Posted by mrsteve
The stock cat stays in place with all the aftermarket exhaust systems currently available for our cars: Comptech, GReddy, Alphawerks.
and that the headers mated up to the red marked area..
I guess my new question is the same as the old question but different then. Will that part fit using comptech axleback exhausts and what benefit does that pipe give over the stock part? (I assume there is a difference since the 'cat back' (which I *thought* included the cat and everything in back of it) and 'axle back' have a big price differential)
Banned
Joined: Aug 2002
Posts: 5,045
Likes: 0
From: Miami, FL
the headers downpipe is what goes connected to on side of the cat and the red part you circled goes connected to the other side. the yellow part is a resonator to lower the sound of the exhaust so it doesnt drone.
im not sure if that pipe will work with the comptech axle-back.
im not sure if that pipe will work with the comptech axle-back.
Intermediate
Joined: Nov 2004
Posts: 29
Likes: 0
From: Fl
Originally Posted by unlemmingTL
Cool. Thanks for the reply, clearly I didn't know that. I thought the cat was the yellow circled part:
and that the headers mated up to the red marked area..
I guess my new question is the same as the old question but different then. Will that part fit using comptech axleback exhausts and what benefit does that pipe give over the stock part? (I assume there is a difference since the 'cat back' (which I *thought* included the cat and everything in back of it) and 'axle back' have a big price differential)
and that the headers mated up to the red marked area..
I guess my new question is the same as the old question but different then. Will that part fit using comptech axleback exhausts and what benefit does that pipe give over the stock part? (I assume there is a difference since the 'cat back' (which I *thought* included the cat and everything in back of it) and 'axle back' have a big price differential)
Think (CATBACK) exhaust system.
Intermediate
Joined: Sep 2004
Posts: 45
Likes: 0
From: US
Originally Posted by whitepearltsx
Think (CATBACK) exhaust system.
Hello,
What we offer is a full cat-back exhaust. This includes both the mid-pipe from the "catalitic converter back" and the axle back exhaust which is composed of the dual exhaust canisters from the car's "rear axle back." Hence the names and the price differential. A cat-back involves 3 times the exhaust components than just the axle back that has the mufflers.
Best,
Victor D.
www.nexusindustry.com
Pimpin da TL in Orlando..
Joined: Dec 2003
Posts: 351
Likes: 0
From: Virginia
Originally Posted by Nexusindustry
That Accord actually belongs to our in-house accountant/book-keeper. The funny thing is that it is a she and not a he. We needed a V6 to dyno test and so we grabbed her car 100% stock and took it to the dyno, installed the header and dual cat-back exhaust, and strapped it on the dyno w/in like 90 minutes of the orginal baseline run and got the +34bhp and +26lbs/tq. to the wheels. We were really happy with the numbers considering the dynos were done in South Florida in the summer when it was averaging like 97 everyday and 100% humidity...
There's always more power in coler weather. But +34 is about all you are going to get out of headers... most people will see 25-30 with the headers available for our cars.
Pro
Joined: Dec 2002
Posts: 712
Likes: 0
From: Vienna, VA
So i have a quick question for anyone who has already installed these... i just got mine today estastic to put them in..i think this was mentioned somewhere but which header piece goes in the front again? The one with the alphawerks symbol on it? Thanks for the help
Intermediate
Joined: Nov 2004
Posts: 29
Likes: 0
From: Fl
Hey great news....
My brother put on the header yesterday. The mechanic said it went in just fine there was no problems. The only thing is that he used the original gaskets.
I can tell you one thing big difference, from factory.
Once again I recomend these headers to any one!
My brother put on the header yesterday. The mechanic said it went in just fine there was no problems. The only thing is that he used the original gaskets.
I can tell you one thing big difference, from factory.
Once again I recomend these headers to any one!
If He Dies...He Dies
Joined: Jan 2003
Posts: 1,061
Likes: 0
From: Washington, DC
Originally Posted by Excelerate
Hey guys, I just wanted to post some technical info and dyno sheets for the Accord V6, TL, and CL headers. Again, these headers are for the automatic transmissions only, and fit the 99-03 TL (ALL) and 01-03 CL (ALL) and 98-02 Accord V6. And the cat back exhaust was fitted on a '99 TL also, so it will fit the 99-03 TL (ALL), 01-03 CL (ALL) and the 98-02 Accord V6.
Below are some specs on the products and the dyno runs on both an
Acura CL and an Accord V6 that has the same engine.
DYNO #1: Acura CL dyno from www.acura-cl.com member ?
bigguyonbike. Stock v. Alphawerks header+CAI+Pulleys. If you want
to see the actual post go to:
https://acurazine.com/forums/showthr...ght=alpha+dyno
DYNO SPECS:
+30 bhp SAE corrected
+16 lbs/tq. SAE corrected
- Both runs done w/ 19 wheels
- Both runs done with engine at operating temp to simulate normal driving conditions
- Car has 92,000+ miles
- 3rd gear pulls
Below are some specs on the products and the dyno runs on both an
Acura CL and an Accord V6 that has the same engine.
DYNO #1: Acura CL dyno from www.acura-cl.com member ?
bigguyonbike. Stock v. Alphawerks header+CAI+Pulleys. If you want
to see the actual post go to:
https://acurazine.com/forums/showthr...ght=alpha+dyno
DYNO SPECS:
+30 bhp SAE corrected
+16 lbs/tq. SAE corrected
- Both runs done w/ 19 wheels
- Both runs done with engine at operating temp to simulate normal driving conditions
- Car has 92,000+ miles
- 3rd gear pulls
Intermediate
Joined: Nov 2004
Posts: 29
Likes: 0
From: Fl
Originally Posted by MisterMehoff
how much of a difference would those dyno numbers be if they were done in colder weather like up here in MD where it's 30 degrees.
I would say about the same, or maybe like 5 more hp. But not 10hp.
Remember vtec works when the car is hot.
comptech
Joined: Feb 2005
Posts: 175
Likes: 0
From: G-burg, Md
Group Buy
Originally Posted by Excelerate
Sorry for the delay on the answer but yes the groupbuy is still active. See my signature for a link.
Josh
Excelerate LLC
Josh
Excelerate LLC
is the group buy for alphawerks header still active?? if so, how much will the group price be, and minimum number of people? Two of my friends, and I are into this. Anyone else? thanks.
I NEED MONEY!
Joined: Aug 2003
Posts: 2,587
Likes: 0
From: Atlanta
Originally Posted by jeffyncs
is the group buy for alphawerks header still active?? if so, how much will the group price be, and minimum number of people? Two of my friends, and I are into this. Anyone else? thanks.
2010 SHAWD
Joined: Oct 2004
Posts: 536
Likes: 5
From: Baltimore
Im late to the party, how much would the purchase and installation run me on average? I have an icebox already that I haven't installed. I was going to pick up some rims this summer, but I think I'd rather have the performance.
I NEED MONEY!
Joined: Aug 2003
Posts: 2,587
Likes: 0
From: Atlanta
Originally Posted by sonnyboyacura
Im late to the party, how much would the purchase and installation run me on average? I have an icebox already that I haven't installed. I was going to pick up some rims this summer, but I think I'd rather have the performance.
IceBox you can do yourself...its easy if not...it shouldnt run more than $75-100...
Alpha Werks Headers I think would run $550-600...I paid 600 on mine...Install can range from (least)$150-$300(max)...
Unless you do it yourself, which isnt too hard...if you have someone to help yeah..
Never had a clean run
Joined: Dec 2004
Posts: 683
Likes: 0
From: Honolulu
Intermediate
Joined: Apr 2005
Posts: 30
Likes: 0
for alpha werks headers for cl-s best price any were call (305) 888-8368 or email to: mario@unclemotorsports.com
Lead Footed
Joined: May 2001
Posts: 3,415
Likes: 15
From: Plano - Texas
Originally Posted by rtatsutani
Ruf
Intermediate
Joined: Apr 2005
Posts: 30
Likes: 0
aw headers
ive had the aw headers on for a while and no problem. 
i got them from uncle motorsports in mia (305) 888-8368 and no one beats there price. they told me to shop around and that they would beat the lowest price i found.
i got them from uncle motorsports in mia (305) 888-8368 and no one beats there price. they told me to shop around and that they would beat the lowest price i found.
Never had a clean run
Joined: Dec 2004
Posts: 683
Likes: 0
From: Honolulu
I contacted them about their price change and they said the $399 was a mistake and people who purchased them while the price was such got a Steal, Literally! Unfortunately they caught it and put the appropriate price in there.
Intermediate
Joined: Apr 2005
Posts: 30
Likes: 0
nice numbers i wanted to know if the exhaust was loud? cuase i wanted to put them on my cl but i dont want such a loud exhaust. i also have the aw headers and an aem cold air, i bought my headers for a cmopany in miami, florida called uncle motorsports (305)888-8368. i ve seen the prices people have got them for in the forum and im like dam. 
i wanted to know if the exhaust was loud? cuase i wanted to put them on my cl but i dont want such a loud exhaust. i also have the aw headers and an aem cold air, i bought my headers for a cmopany in miami, florida called uncle motorsports (305)888-8368. i ve seen the prices people have got them for in the forum and im like dam.