Dohcgarage Header Test

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Old 06-14-2006, 02:42 PM
  #161  
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Originally Posted by jpt
Also got dyno'd yesterday at Curry's Auto in Dulles. Their Mustang dyno read 180WHP (SAE corrected) for my car bone stock! Gotta get back to work now but will scan the results later.
You have a 6MT, right? That's an impressive number to put down on a Mustang.
Old 06-14-2006, 03:24 PM
  #162  
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Originally Posted by rmpage
You have a 6MT, right? That's an impressive number to put down on a Mustang.
Yes, it's a 2006 6MT and the run was done in 4th gear (I would assume that doesn't matter much but ). The graph on the printout was super crappy so I put the raw numbers into Excel and made my own:


I was shocked at the result myself, but TOV's dyno of a 2006 5AT shows a peak of 175whp SAE on a Dynojet, which leads me to believe that the 2006 TSX has somewhat reduced drivetrain losses in addition to increased power.
Old 06-14-2006, 03:30 PM
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Nice numbers! Just imagine the red line is higher.
Old 06-14-2006, 03:31 PM
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Originally Posted by jpt
Got my header yesterday, will post pics today. (I got it from delubozparts, but to clarify, we have verified that both the ebay store and DOHCGarage are selling the TopSpeed Auto Accessories header, a 2-piece Chinese-made SS header) The replacement exhaust manifold gasket was damaged during shipping but delubozparts is mailing me a new one, so I should still be able to install it this weekend.

Also got dyno'd yesterday at Curry's Auto in Dulles. Their Mustang dyno read 180WHP (SAE corrected) for my car bone stock! Gotta get back to work now but will scan the results later.
Cant wait to see the final results...
Old 06-14-2006, 05:05 PM
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are you going to take some nice pics of the new header
Old 06-14-2006, 05:18 PM
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nice numbers i think . . what is the stock whp .. and is it the 14whp or around that as the member previously stated?
Old 06-14-2006, 08:00 PM
  #167  
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Originally Posted by 1tsx
nice numbers i think . . what is the stock whp .. and is it the 14whp or around that as the member previously stated?
uh...reading own u

MT VS AT
06 VS 05
Stock VS non Stock hahaha
Old 06-16-2006, 02:43 PM
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Originally Posted by jpt
Yes, it's a 2006 6MT and the run was done in 4th gear (I would assume that doesn't matter much but ). The graph on the printout was super crappy so I put the raw numbers into Excel and made my own:


I was shocked at the result myself, but TOV's dyno of a 2006 5AT shows a peak of 175whp SAE on a Dynojet, which leads me to believe that the 2006 TSX has somewhat reduced drivetrain losses in addition to increased power.
Hey~
Do you know your stock hp/tq??? Since every car is different it's better to compare the "header" dyno w/ your baseline dyno.
Old 06-16-2006, 02:56 PM
  #169  
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Originally Posted by chuson
Hey~
Do you know your stock hp/tq??? Since every car is different it's better to compare the "header" dyno w/ your baseline dyno.
That is his stock dyno.
Old 06-16-2006, 07:36 PM
  #170  
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Oh, that is stock...so when we installin' the header and re-dyno-ing?
Old 06-16-2006, 11:06 PM
  #171  
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i guess when "we" pay for the install and the dyno
Old 06-17-2006, 01:49 AM
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o sorry~ I thought that's a dyno w/ header, trick me so bad. I was like, wtf this header do nothing on TSX???
Old 06-19-2006, 01:05 AM
  #173  
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so how loud is this so called hiss sound anyway.....
louder than Injen?
Old 06-19-2006, 11:27 PM
  #174  
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Not really. It's just a little hissing sound when you get on the gas. It is only lower in the rpms it seems like. My CAI drowns out all sound at 4000-5000 rpms.
Old 06-29-2006, 09:14 AM
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Where's the update JPT???


I'd love to see the "after" dyno.
Old 06-29-2006, 10:55 AM
  #176  
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Originally Posted by jpt
Got my header yesterday, will post pics today. (I got it from delubozparts, but to clarify, we have verified that both the ebay store and DOHCGarage are selling the TopSpeed Auto Accessories header, a 2-piece Chinese-made SS header) The replacement exhaust manifold gasket was damaged during shipping but delubozparts is mailing me a new one, so I should still be able to install it this weekend.

Also got dyno'd yesterday at Curry's Auto in Dulles. Their Mustang dyno read 180WHP (SAE corrected) for my car bone stock! Gotta get back to work now but will scan the results later.
how much did Curry's charge for the dyno runs?
been thinkin about getting a baseline dyno done...
Old 06-30-2006, 08:46 AM
  #177  
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I'm also interested if anyone else has post-header dyno's for this one. Seems like a good option for the cost, but I want a few other opinions before I make the change.
Old 06-30-2006, 11:07 AM
  #178  
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I definately felt gains when I put mine on....especially in the low end.
Old 06-30-2006, 01:06 PM
  #179  
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Originally Posted by jmathew34
how much did Curry's charge for the dyno runs?
been thinkin about getting a baseline dyno done...
$105 for a torque/hp curve, $155 if you also want A/F readings. That is for 3-4 pulls, they did 4 for me. Sorry I haven't put these in yet, been spending all my time getting my Empeg in there but I finally got it sorted yesterday so I'll be putting the headers in this weekend most likely and dynos the following week.
Old 06-30-2006, 02:03 PM
  #180  
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Originally Posted by jpt
$105 for a torque/hp curve, $155 if you also want A/F readings. That is for 3-4 pulls, they did 4 for me. Sorry I haven't put these in yet, been spending all my time getting my Empeg in there but I finally got it sorted yesterday so I'll be putting the headers in this weekend most likely and dynos the following week.
$105?!?!

wow i thought dyno runs cost like $70...$100 at the most....


anyone know of anywhere cheaper in the dc/md/va area??
Old 07-01-2006, 09:38 PM
  #181  
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Originally Posted by jmathew34
$105?!?!

wow i thought dyno runs cost like $70...$100 at the most....


anyone know of anywhere cheaper in the dc/md/va area??
I did a dyno at Ultimate Performance in Dulles for $50, 3 pulls, on a k-series "dyno day". most places will do cheap prices for a dyno day if you're willing to wait for one to come around
Old 07-02-2006, 05:34 PM
  #182  
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doh

well i tried to install this header today but can't manage to unbolt the stock exhaust manifold from the cat. there's not enough clearance for a breaker bar unless i were to lift the car significantly higher than my jack can lift it, and i don't have an impact (not even sure if i'd be able to get one in there anyway). gonna have to give up on it for now and reattach the stock EM so i can at least get to work tomorrow, maybe i'll get an impact and try again Tuesday.
Old 07-03-2006, 11:18 AM
  #183  
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Can you double-wrench it? I would think that if you've soaked it good with PB Blaster (or an equivalent), two wrenches and some manual impacting should do the trick.
Old 07-03-2006, 11:20 AM
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Originally Posted by jpt
well i tried to install this header today but can't manage to unbolt the stock exhaust manifold from the cat. there's not enough clearance for a breaker bar unless i were to lift the car significantly higher than my jack can lift it, and i don't have an impact (not even sure if i'd be able to get one in there anyway). gonna have to give up on it for now and reattach the stock EM so i can at least get to work tomorrow, maybe i'll get an impact and try again Tuesday.
Yeah, the bolts to my stock exhaust manifold were on there pretty tight. Luckily, my car was on my friend's lift, so we had plenty of clearance for a breakerbar. If you have access to a lift, go for it....it makes life so much easier.
Old 07-03-2006, 12:43 PM
  #185  
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Originally Posted by junktionfet
Can you double-wrench it? I would think that if you've soaked it good with PB Blaster (or an equivalent), two wrenches and some manual impacting should do the trick.
I'm not sure if two wrenches will fit but I'll give it a shot.
Old 07-19-2006, 08:37 AM
  #186  
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Hi, I might want to give this header a shot. At $170 it is a very good deal. And it seems that it doesnt have any issues or problems at all. Is the header the same as this? http://cgi.ebay.com/ebaymotors/04-05...46388224QQrdZ1

Thanks!!!
Old 07-30-2006, 11:32 AM
  #187  
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what happened to this thread?.....no one took pics or dynoed?
Old 07-30-2006, 03:12 PM
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I just installed mine and I didnīt feel anything, but I got a hissing sound when I floor it? I tried tightening the all the bolts except the bolts on the block, and I still get it so itīs gotta be from either the sensor hole or where the header attaches to the block? I donīt wanna tighten the bolts on the block much more, scared of ruining something

weīll see if I improved when I go to the track next

I didnīt go to a dyno before so I wonīt be able to do a before and after, but maybe my 1/4mile will improve and tell us of some improvements
Old 07-30-2006, 05:47 PM
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Originally Posted by h1coupe
I just installed mine and I didnīt feel anything, but I got a hissing sound when I floor it? I tried tightening the all the bolts except the bolts on the block, and I still get it so itīs gotta be from either the sensor hole or where the header attaches to the block? I donīt wanna tighten the bolts on the block much more, scared of ruining something

weīll see if I improved when I go to the track next

I didnīt go to a dyno before so I wonīt be able to do a before and after, but maybe my 1/4mile will improve and tell us of some improvements
You didn't feel anything at all???? Did you feel the car are more responsive on throttle? I don't think it will improve your 1/4mile time that much, but throttle respone should be more sharp than before. If it feels exactly like stock, something is wrong?
Old 07-30-2006, 11:37 PM
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Originally Posted by h1coupe
I just installed mine and I didnīt feel anything, but I got a hissing sound when I floor it? I tried tightening the all the bolts except the bolts on the block, and I still get it so itīs gotta be from either the sensor hole or where the header attaches to the block? I donīt wanna tighten the bolts on the block much more, scared of ruining something

weīll see if I improved when I go to the track next

I didnīt go to a dyno before so I wonīt be able to do a before and after, but maybe my 1/4mile will improve and tell us of some improvements
Well the hissing sound is normal. This header is essentially a stainless steel copy of the DC header. The hissing is because the flex pipe doens't have mesh in the inside and is ribbed metal. I don't see how you didn't feel gains? My car pulled way better, especially down low, when I installed the header.
Old 07-31-2006, 01:52 AM
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kwjustin89, just to clarify is this is the header you are using? http://cgi.ebay.com/ebaymotors/04-05...46388224QQrdZ1 / How is reliability going? Anything bugging you lately? I'm seriously thinking of getting one. Thanks
Old 07-31-2006, 08:32 AM
  #192  
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Originally Posted by curik_euro
kwjustin89, just to clarify is this is the header you are using? http://cgi.ebay.com/ebaymotors/04-05...46388224QQrdZ1 / How is reliability going? Anything bugging you lately? I'm seriously thinking of getting one. Thanks
Be advised that the seller in that auction says "no international shipments except Canada". Just a FYI.
Old 07-31-2006, 08:36 AM
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hi family guy! Yeah there is another seller who ships overseas. I just used that link since its got more pictures and detailed. So, is it the same header?
Old 07-31-2006, 09:19 AM
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any rattle sounds from this header? does the hissing sound cool atleast?
Old 07-31-2006, 09:42 AM
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Originally Posted by kwjustin89
Well the hissing sound is normal. This header is essentially a stainless steel copy of the DC header. The hissing is because the flex pipe doens't have mesh in the inside and is ribbed metal. I don't see how you didn't feel gains? My car pulled way better, especially down low, when I installed the header.
Hi mugen powa! Is this the header you got? http://cgi.ebay.com/ebaymotors/04-05...46388224QQrdZ1
Do not worry about non shipping outside of US thingie
Old 07-31-2006, 11:24 AM
  #196  
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Originally Posted by jiggaman
any rattle sounds from this header? does the hissing sound cool atleast?
I think the hissing sounds kinda cool. You get used to it though....now I don't even notice it really. My exhaust seems to rattle now when idling sometimes...but I think it is simply just vibrating against that metal shield thing, above the muffler.

Curik, yes, that is the header I have.
Old 07-31-2006, 04:13 PM
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there might be some slight better overall feeling in the car but nothing to really tell about!
and I did a search and I found out that about the hissing, but thanks anyway for clearing that up for me
and yes the hissing doesnīt sound all that uncool, just thought I had a leak and was a bit worried?

I will be receiving my K&N typhoon real soon, weīll see if the 2combined wonīt give me a better impression
Old 07-31-2006, 04:14 PM
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should I be worried about the 02sensor! it is very close the car Iīm worried that it might bump up against it in some circumstances?
Old 08-01-2006, 08:30 AM
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Originally Posted by h1coupe
I just installed mine and I didnīt feel anything, but I got a hissing sound when I floor it? I tried tightening the all the bolts except the bolts on the block, and I still get it so itīs gotta be from either the sensor hole or where the header attaches to the block? I donīt wanna tighten the bolts on the block much more, scared of ruining something

weīll see if I improved when I go to the track next

I didnīt go to a dyno before so I wonīt be able to do a before and after, but maybe my 1/4mile will improve and tell us of some improvements
did your '06 euro-s get the same breathing improvements as the '06 US TSX? I probably could have searched; sorry I'm feeling lazy this morning. Just wondering if it would make a performance difference as I'm still looking at this header. So far my only engine mod is the icebox.
Old 08-01-2006, 12:42 PM
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the new dc header has an 02 sensor placement change. i got an extension harness with it (manufact. june06). i originally got one that was slightly damaged (manufact. aug 05) that did not come with the harness and had a slightly different placement. I think the SS steel copy has the old placement.


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