BulldogHockey

It would be great to see, Thanks! This might be my next mod, depending on results. Anyone out there have problems with an installed TopSpeed Header yet?

Reach

I've had mine on for like 2-3 months now I think (I don't know.. time flies.) No problems, No CELs (due to header at least), no discernable decrease in gas mileage, perhaps the slightest boost in power, but I haven't dyno'd.

Mostly I did it cause Hondata is supposed to work best with a new header. Since I did everything at once I can't pinpoint how much gains the header provides vs. anything else. The #1 thing it does from my opinion is change the tone of the exhaust note. The engine sounds different with it on, a bit more busy. Not worse, not better, just different.

WECoyote13

Well, I hope the header isn;t a waste and gives gains somewhere at least in the neighborhood of a DC. Guess we'll know soon.

BTW, my dyno's will be pathetic due to the Colorado air the car will be breathing.

WECoyote13

Baseline as promised...uncorrected in the Colorado air the peak whp was more like 143. Should get the header done in the next week or two...maybe even this weekend.

shitbox

hi WECoyote13, may i ask what year and tranny is your tsx?

WECoyote13

04MT Navi w/ ~40,000 miles stock engine

treez35

is there anyway i could order that header, it sounds like a great product and if so how much is it? i have practically the same car as you, 05 A/T with roughly 9000 miles its even carbon grey, if it did that to yours, i dont see why mine would be much different.

chuson

^^ You will experience less gain (WHP) than those MT, since the torque convertor and it's a AT and make you lost some power on da ground (or dyno). Same for anykind of header, but non the less you will get some gain.

treez35

^^ well yea thats true i forgot about his being a M/T

WECoyote13

Whew...long day but I installed the header ahead of schedue, took about 2 hours in an apartment complex parking lot (i.e. subtract time for sweet, heated garage)...my timing did not go over well with the SWMBO but it is what it is.

Quickly cuz I gotta run:

- PLEASE, if you order this header or the DC, follow JTso's instructions in the FAQ...I did and I am grateful. Its all really simple stuff, but you will need the socket extension, breaker bar, ratcheting wrenches, etc. My car is 3 years old so I suspect I had breaking a few bolts a little tougher than he did.

- Impressions:
- I was a little scared working with the header after removing the stock one...it feels pretty flimsy by comparison. So far its in an running so its all good.
- Sound: Not changed much, perhaps a little louder. I hear the hiss but its kinda cool, you only hear it past 1/3 throttle and it is not perceptible over the slightest radio
- Butt Dyno: So far I honestly can't tell much. Today was a particularly good day for my car, stock. It was running well before the mod...so I will wait to see what my impression is later tonight and in the morning.

** I should have an actual comparison dyno in a few days to a week...sweet!

treez35

hey, is there a website you can give me the link to so i can maybe order the header? thanks

JTso

iTrader: (2)

There are plenty of them on ebay.

treez35

^^thank you!

WECoyote13

OK kids, I finally got to it.

Let me start with a caveat: I did only one pull on each trip to the Dyno. We probably should have done more, but I am just getting to know the guys and they are giving me a great deal. I was told tonight that from now on it would be $20 each trip...wow...but that's the good news. So anyway 1 run is not statistically significant and could be a lil off...then again I don't have much dyno experience.

caveat deux: my car was stock going into this mod and the air filter could use replacement. Its quite possible that the header will perform better with an intake to feed it (like JTso's run)...which is sitting in my garage.

I say all of this because I don't want to bag on anyones product...the dyno is what it is and I don't claim to know why. I will say that the graph matches darn close to my butt dyno...hesitant in the "drivable range" and a lil extra power up high...almost like an intake.

Check it out: (sorry for the quality, did not get sent my digital file yet)



I would be lying if I said I was not a little disappointed, but I will wait for the intake and another dyno to pass too much judgement.

-WEC

kwjustin89

Man, I am disappointed. I could have swore that my buty-dyno felt a greater gain than your dyno shows.

San-AnT

my foot also got a little heavier when i installed my CAI and my header...damn 20lb shoes!

KingTSX

iTrader: (1)

Am I reading that dyno chart correctly?? A 3HP gain for $175??? Hopefully we can get a few more cars dyno'd with this header. Also, like coyote said, the intake may "wake" his car up a bit more....

Reach

I wouldn't expect much gains at all with a header alone as the first mod to a TSX. Any header, not just this one.

However, coupled with Hondata (especially) it should provide increased gains. The intake will open it up a bit as well, but a header appears best used along with other mods such as (in rough order):
1. Hondata
2. High-Flow Cat
3. Intake

Excelerate

iTrader: (1)

ORIGINAL POSTER'S DYNOS

CURRENT DYNO #'S

Hmm... a little discrepancy there huh? 14whp vs 3whp. Interesting ... I wonder if the initial poster and the shop selling these headers were a little anxious to post better #'s than the header was actually producing.

aaronng

Was the 1st dyno with I/H/E, while the 2nd dyno with just headers?

hrj

iTrader: (1)

the car is bone stock

jdmturtleracin

it was just the headers through and through...i wasn't trying to sell the header him either... i just wanted people to know what i gained...up to ya'll to believe me or not...

i'm going to get redyno'd next week cause i installed a few more toys (dynamic)....

going to the original dyno shop i went to and another friends shop (dynojet)....

anyone from south florida is more than welcome to come with...

WECoyote13

One thing that makes me feel better is the dyno chart in the link below. Comptechs own dyno shows negligible gain in the lower rpms with occasional losses in the drivable region (what I call 3000 - 4500 rpm). The graph perks up for good at about 4300 but never makes more than 3 hp into VTec, then 5 hp after...really does not look much different than mine considering I only did one dyno run before and after.

http://www.comptechusa.com/store/med...tsx_header.pdf

Of course, there is the TOV test on the DC which looks much better, but then again they have a short ram and intake gasket installed:



I still say I can't judge the mod too much until I get some more dyno time...but then again I do feel that hesitation right above 3500 rpm that is in my chart...

The weather here has been nasty otherwise I would have put in my Typhoon this weekend and headed back to the shop.

San-AnT

that's what short ram is for

WECoyote13

^^^ way ahead of you...installation underway, still pretty cold out for working though.

WECoyote13

did my link to the TOV dyno get pulled? If so did not realize that is a no-no.

JTso

iTrader: (2)

The link is there but the source may not allow linking to their pics.

Excelerate

iTrader: (1)

Well what is odd is that the original poster showed a 14whp gain from the header alone. Cars and dynos and whp vary. What is odd is that there is a difference of 11whp from one car to another car with the same mod. That is a big discrepancy. Yes the Comptech header at the peak RPM makes 5whp but we know that and it is repeated time and again. What is suspect is that you made 3whp with the header and the other guy supposedly made 14whp with that same header.

WECoyote13

I don't think anyone believed that a knock off of a well engineered product from a reputable company would actually outperform it i.e. 14 whp. I would like to see it perform similarly though.

And yes, I do have some moral issues with using a knockoff anyway...better to support a tangible company that is actually innovating. This project is more to satisfy curiosity. At the end of the day it looks like we may be scoring one for DC Sports.

joerockt

The starter of this thread did.

Reach

So why are people still bashing the OP 16 pages and some many months later? Anyone actually expecting over 10whp gain isn't doing their homework, and any serious consumer would take those initial readings with a grain of salt, especially now that there has been backup work done to suggest that there is a gain, but not nearly as great of one. Its a knockoff, its cheap, but it works. Its gains are similar to other headers dyno'd and I wouldn't expect anything different.

Tsx536

I think the problem was that on the run with the header, there is a big spike at the end. Normally, when we're reading people's dynos we will say to ignore any weird spike like that. The person running the dyno used that number though, and that's why we see such a big difference.

I don't blame the original poster for any of this though. He's not the guy running the dyno and if you go back to the first post then he actually bought the part from one shop and dynoed at a completely different shop. Even if he was mislead somehow I'm willing to give him the benefit of the doubt that he had no idea. As more people dyno with this part we'll have to see what type of results they get. I think WeCoyote's numbers seem a little low.

WeCoyote, what elevation are you at?

joerockt

Because their were a bunch of people in here going apeshit over his claim. And I dont like to see people on this board going out and spending money on some pos based on false information. We might as well have a thread that claims the Turbonator added 20whp...

Yes, I took it with a grain of salt, but their are many people new to modding that might not.

WECoyote13

Ok well now we have a new data-point. Typhoon Short-Ram installed on Sunday to go along with the header.

I mentioned in my posts that my shop had just done one run on each of my trips and I was thinking that could be an issue. Today I made sure to get 3 runs in. The first one was funky looking (I'll get a graph of it tomorrow, forgot today) and I immediately said "that ain't right". It was clear that the motor warmed up right in the middle of the run and started acting different. Two runs later and we were at this:



Its a decent graph, but definitely below what you would expect from a short ram and a DC header. 11 HP total gain, I would expect 15 ish???...I guess it depends on a lot.

For whoever asked, I am at 5000 feet but all of the dynos are corrected. Actual numbers are way lower.

Excelerate

iTrader: (1)

No one is bashing the OP. This header was supposedly giving 14whp and many people jumped on the bandwagon, and many people were basing their decision on his dyno and information. So it is important to figure out what the real facts are since their is a huge chasm between 3whp and 14 whp.

Tsx536

^^ That's more like it! I think your numbers looks close to what you should expect for those mods. Definitely good numbers. You might get a little more power in CAI mode, but you also might lose some low end power.

WECoyote13

For the record, I screwed up and that plot I put up is my header run versus my intake run, not baseline versus both, but the shapes are similar and the overall gain is 11 to the wheels. I will make a graph with all 3 next time I get over there.

chuson

Well, the dyno looks decent !@@@! Can consider it's a good mod since it has a similar power output as the DC, and SS quality like the Comptech, + super low price. Too bad I had my DC header install long ago already.

Reach

those are some fine gains for the combo, and what I would expect with any of the headers. its good to see more good data like that, thank you for investing in the dyno time and having the patience to go through with it all!

Also, I encourage you to post all your results to the sticky dyno thread.

aaronng

Wow 7hp with SRI on a car with headers. Makes me want to get headers as well! My car is running only with an SRI too.

Did you manage to take videos of your dyno runs?