i just got off the tctunerz site and im not pleased by the gain of their headers. some people said that they would have a 50hp gain and they didn't even make 8hp . so its up to you, do you rather pay over 500 dollars for some headers that have the same or less gain than the dc sports headers?. dc sports headers are half the price, more power and they have the ceramic coating that protects from heating , compare to the stainless that gets hotter and just has a nice finish.

1st off..it's not possible for a header to make 50+HP.

NOT possible.

2nd off..the tc tunerz header..although only making a good 8whp (around 10 or so @ the flywheel) isn't as high as the DC (it's not TOO off though), you get a legal header..meaning you won't have to mess with taking the header off for emissions, CEL light, and of course the difference in exhaust sounds between the DC and the tC tunerz header.

PLUS the tC JUST came out..so give it some time..I'm sure Comptech/GReddy/etc etc will make some headers that will rival/beat the DC 'n tC tunerz header.

like i said in a previous post, with the tc engine you are not going to be able to get very many ponies without elimanating the cat.

its so funny becuse after i wrote that i went to the tc tunerz site and their headers were cheaper than the dc. maybe they drop the price because people were ththinking it was 2 much money for some headers

1st off..it's not possible for a header to make 50+HP.

NOT possible.

2nd off..the tc tunerz header..although only making a good 8whp (around 10 or so @ the flywheel) isn't as high as the DC (it's not TOO off though), you get a legal header..meaning you won't have to mess with taking the header off for emissions, CEL light, and of course the difference in exhaust sounds between the DC and the tC tunerz header.

PLUS the tC JUST came out..so give it some time..I'm sure Comptech/GReddy/etc etc will make some headers that will rival/beat the DC 'n tC tunerz header.

the tctunerz header is making 4 hp not 8 , and about 4.4-4.6 hp at the flywheel

its so funny becuse after i wrote that i went to the tc tunerz site and their headers were cheaper than the dc. maybe they drop the price because people were ththinking it was 2 much money for some headers

the header was cheaper than the dc like 2 days ago :?: :?:

all im saying is that i rather buy the dc than the tc header, dc are dyno tested before selling.not like the others that sell before testing

I'd rather have a legit header with a cat and whatnot. I would just wait a couple of months until other companies release some headers.

i didnt say they made 8, i said they didnt make 8. so read very well before you write.there is a big difference

1st off..it's not possible for a header to make 50+HP.

NOT possible.

2nd off..the tc tunerz header..although only making a good 8whp (around 10 or so @ the flywheel) isn't as high as the DC (it's not TOO off though), you get a legal header..meaning you won't have to mess with taking the header off for emissions, CEL light, and of course the difference in exhaust sounds between the DC and the tC tunerz header.

PLUS the tC JUST came out..so give it some time..I'm sure Comptech/GReddy/etc etc will make some headers that will rival/beat the DC 'n tC tunerz header.

the tctunerz header is making 4 hp not 8 , and about 4.4-4.6 hp at the flywheel

My bad yo. Thanks for lookin' out.

Look at it this way..

tC tunerz header-Quieter (exhaust-wise), no CELs, and you'll pass emissions..but not as much as a HP gain

DC header-Louder with a exhaust attached to it..CELs may come on here and there..and you won't be able to pass emissions unless you throw on the stock tC header back on.

We did a baseline test with the car stock and headers. We are gathering part by part result then a combined to see the percentage of combined gain to individual gain.

good idea i like ;p

dyno it with the dc cat back exhaust next :D

then dyno it with weapon r intake :D

4hp Gain/8hp gain, 4hp is nothing guys -

Really want to make your car faster? Go to the gym and lose 30 lbs, you'll immediatly have a faster ride.

I'd get the tctunerz headers over the DC because of the CEL issue and Cali emmisions...however I'm waiting to see how well they do with exhaust/intake.

If your expecting a ton of HP from a header designed by DC Sport, then I got some cheap farmland in Iowa to sell you...

Look, if you want serious HP then don't put sorry bolt-on 4-8hp parts on your car.

What's you intention?

If you really wanted SPEED, you would have seeked out a source for a serious header for your car.

I would give you a link to one of the best header builders in the racing business, but since you prolly don't know all the specs to your car like camshaft specs, etc, etc. I won't bother.

Having a REAL header doesn't mean your car is LOUDER either. You have to add MASS to your exhaust to make it quiet. If you need to ASK what that is, nevermind.

Enjoy your whatever tunerz or DC whatever header.

If your expecting a ton of HP from a header designed by DC Sport, then I got some cheap farmland in Iowa to sell you...

Look, if you want serious HP then don't put sorry bolt-on 4-8hp parts on your car.

What's you intention?

If you really wanted SPEED, you would have seeked out a source for a serious header for your car.

I would give you a link to one of the best header builders in the racing business, but since you prolly don't know all the specs to your car like camshaft specs, etc, etc. I won't bother.

Having a REAL header doesn't mean your car is LOUDER either. You have to add MASS to your exhaust to make it quiet. If you need to ASK what that is, nevermind.

Enjoy your whatever tunerz or DC whatever header.

not everything DC sports makes is crap. my friend has a DC sports race header on his SI (the header is made the the rsx type-s) and he got a pretty good power gain, i don't know the numbers off the top of my head.

If your expecting a ton of HP from a header designed by DC Sport, then I got some cheap farmland in Iowa to sell you...

Look, if you want serious HP then don't put sorry bolt-on 4-8hp parts on your car.

What's you intention?

If you really wanted SPEED, you would have seeked out a source for a serious header for your car.

I would give you a link to one of the best header builders in the racing business, but since you prolly don't know all the specs to your car like camshaft specs, etc, etc. I won't bother.

Having a REAL header doesn't mean your car is LOUDER either. You have to add MASS to your exhaust to make it quiet. If you need to ASK what that is, nevermind.

Enjoy your whatever tunerz or DC whatever header.

not everything DC sports makes is crap. my friend has a DC sports race header on his SI (the header is made the the rsx type-s) and he got a pretty good power gain, i don't know the numbers off the top of my head.

What would you call decent power? 5-7hp?

When I think proper header I think 10-15hp and alot of mid range torque.

i'll have to find out the exact gain he got next time i talk to him.

new cars are a lot more efficient than they used to be. bolt on parts dont add as much to newer cars than they did before...

some companies for the 01+ civics were dynoing losses on a $700 part... all the R&D, and a plastic stock IM beat their part...

i'll wait to see what else develops. if you want serious power then boost your car. some just want small gain with high reliability and driveability. the i/e/h combo will be great for stuff like that, not an all-out racer

If your expecting a ton of HP from a header designed by DC Sport, then I got some cheap farmland in Iowa to sell you...

Look, if you want serious HP then don't put sorry bolt-on 4-8hp parts on your car.

What's you intention?

If you really wanted SPEED, you would have seeked out a source for a serious header for your car.

I would give you a link to one of the best header builders in the racing business, but since you prolly don't know all the specs to your car like camshaft specs, etc, etc. I won't bother.

Having a REAL header doesn't mean your car is LOUDER either. You have to add MASS to your exhaust to make it quiet. If you need to ASK what that is, nevermind.

Enjoy your whatever tunerz or DC whatever header.

Wow. Thanks for the negitivity.

Like I said previously..it's a choice of whether you want those 4-5 extra HPs and a CEL light on and no emission passing OR sacrifice the HP for a car that will pass emissions and won't check engine light.

Wow dj4monie you must be a genius. The point of this forum is to discuss the cars and the parts we may or may not put on them, if you see everybody else as an idiot not worthy of your time then don't post anything.

DC makes nice stuff (i own a ceramic shorty header from dc on my si) but overall you won't feel anything on the butt dyno.

I would say the main thing to look at perfomance-wise would be finding a header with larger diameter primaries that still keeps the lower torque curve from dropping as a sacrifice for more up top hp. .02

**UPDATE**

Stock Scion tC= 113.4 Torque / 130.0 Power
With Header System= 138.9 Torque / 129.8 Power
With Header System and no Stock Intake Box= 141.2 Torque / 133.5 Power

The header system yeilds a .2 Power loss and 25.5 Torque gain.

Are you kidding me? The tC has a 30hp loss through the Tranny? That doesnt seem right. Thats a 20% loss. I thought it was only like 12-15% loss.

And torque? Your baseline says that the tC looses 30% torque from the crank to the wheels. I'm not so sure those are good numbers to go by for a stock tC.

I agree those baseline numbers are way off especially at sea level .Should be about 140s for both. My FRIENDS CIVIC EX automatic dynos at 112 hp to the wheels. No mods sea level.

Please note our car is an Auto and not a 5spd.

The tubing aren't the same length, thus the reaso for no gains.

The tubing aren't the same length, thus the reaso for no gains.

Sorry to inform you that the pipes are equal length. :roll:

i wonder what's up with that 20% loss in power. auto or not thats crazy.

wow if anyone here finds an auto tc dyno chart please post a link.

wow if anyone here finds an auto tc dyno chart please post a link.

We will have new dyno's in 2 weeks with videos and pictures!

The tubing aren't the same length, thus the reaso for no gains.

Sorry to inform you that the pipes are equal length. :roll:

:roll: Yeah, not all four are, maybe two pairs of two. :roll: Ok, if you say they are. :roll: Maybe the tubes are the wrong length then. :shock: Hmm, is Chris paid back in full yet? :shock:

Good to know your testing the the header on an automatic car because my moms is also.

I dont see how the auto tranny could cause that big of a torque loss??
Hp doesnt look bad but 114flbs is like a Civic. Ewwww!!!!

dude a civic auto puts less than 100 at the wheels stock.

I was talking about a new Civic Si.
It didnt have to be an automatic. 114ftlbs at the wheels is horrible for a car with 163 crank ftlbs.

Man there is a HUGE difference between the Auto and the 5-speed.
I dynoed my stock tC at 130hp/144ft-lbs tourque.

I cant wait for the info on the turbo kit to come out.

I agree there is going to be a difference in both trannys but not "HUGE" especially a 30% drivetrain loss. Thats way too much i expected 129 or 133 at the wheels auto.

who manufacturers the header?

You have to add MASS to your exhaust to make it quiet. If you need to ASK what that is, nevermind.


Dork.

dyno reads WHP, it uses a pickup to calculate torque, sometimes the pick is flaky and the torque is WAY off. I owned and ran a dyno shop for a LONG time. A header does not lose 30 ft-lbs but I can believe it only made .2 WHP.

The scion TC has a OK factory header and a large well shaped exhaust. I would expect little gains from the whole system. Header to tail pipe. Say 10 to 15 WHP. That said it would not be worth the NOISE, the lack of OEM warranty etc. I'd just save the $1000 and wait to see what the supercharger is like.

IMO a $4000 supercharger with factory backing at 40 WHP is worth FAR more then a Header, complete exhaust, TB, and CAI at $1500 for say 22 WHP. The supercharger is going to offer FAR more torque, far more useful driving power, quite. cool supercharger badge, ultimate bragging rights.

You drive torque, you buy HP. The supercharge supplies both, the other mods only supply 1/2: the HP part. i.e. the TRD supercharger will put out 180 ft-lbs to the wheels and the other mods put out 140 so it is more like $4000 for 40 ft-lbs useful 99.99% of the time vs $1500 for 3 ft-lbs only useful in the upper rev range aka HP.

I found this here:

Secret Weapon Intake (no air box, open hood)
Baseline - 141.1hp, 151.1 ft/lb
SW Intake - 147.6hp, 154.8 ft/lb

Full Race Header (SW Intake, open header, ignition bridge)
Baseline - 147.6hp, 151.1 ft/lb
Race Header - 159.7hp, 160.7ft/lb

http://www.clubsciontc.com/modules.php?name=Forums&file=viewtopic&t=1428&postdays=0&postorder=asc&start=45

I assume you need to registered to read the actual post. Never the less a RACE header with no exhaust at all makes 12 HP no doubt that most it is on the tip end. The intake is 6 WHP and seems to in for a rework. So lets say a “working” intake is 10 HP. There ya go 22 WHP race header no exhaust at all, and please cars don’t make more WHP capped up, at least not at WOT.



The scion TC performance has the 22 WHP with: header, intake II, TB, exhaust.


http://suzukird.com/scion-tc-performance/nfoscomm/catalog/Dyno_charts/4_air_int_header_exhaust.jpg

Looks to be a race header so CEL and illegal. Surprising torque but the run does start almost ½ through the engine power curve.

I think that just about does it. Normally aspirated you are looking at about 20 to 25 HP with simple stuff upto $1500.00.

Supercharger say 40 HP and drivable low end torque, whisper quiet (important for me), will have some gear whine ( I like that sound vs blab shift blab sound), for $4000.00 no CEL, legal (a good thing), no warranty problems (a really good thing).

One last thing and I’m know on my last board to do this (long post), there whole blurb that a header does not void your warranty is just internet hype by guys that don’t know. The factory and I mean ALL factories not just Toyota have a canned speech where the “engineer” show how a header can cause lean out that can burn exhaust valves, roast pistons, cause the cat to fail, confuse the ECU. These gurus have no experience arguing the Magnusen – Moss act in front of a lemon law advocate. I’ve seen the VW white papers on chiping for instance. VW has done so much testing to show how a chip causes a tad bit more stress on the engine. You chip a VW and it blows you best be sure the VW engineer with an engineering degree shows up to the advocate with the white paper in hand, while alls the people here will go by is um I read on the internet that the header would NOT void my warranty. Yeah right, sheep to the slaughter. IMO. Young naïve sheep too. Blowing a motor that has a CEL light on due to a race header WILL void your warranty and Toyota will pull the ECU trouble codes when it get towed in can I be more clear?