Headers po!

[karlo4real]

guys di na ako naka tiis nag punta na ko ng muffler land at nag pakabit na ko ng scuv 4,500!! since 1.4 liter dohc makina ko 24 inches in length tpos 2 inches ang diameter ok ba ung pinalagay ko? morethan that susungaw daw, tpos sa headers ko inalis ung catalytic converter pinalitan ng mandrel bent na tubo tpos diretso sa scav ko so parang 4-1 ang labas. scuv type na exhaust ko ung nasa gitna lang sya wala na tambutso.

mga observation ko po,

pag start ko parang may sumisigaw na higante! hahaha!! grabe!
tpos nung aandar na ko ewan ko lang kung nawaln ako ng low end power
pero pag aroung 2.5k rpm pataas na parang maganda ung hatak nia tpos machong macho tunog.

tpos may inalis catalytic converter sya nakaka restrict daw un ng flow tpos ang tanung ko baka bumagsak ako sa emission test nito?
mga katanungan:

tama po ba ung 2 inches in diameter na scuv? kasi 1.4 dohc ang makina ko po.

tpos po anung headers po ang bagay sakin? 4-1 or 4-2-1? gusto ko kasi sumubok mag track ok ba 4-1 dun or pang drag lang ung 4-1? ang gusto ko po kasi pag may mayabang at hinatawan ako sa street eh makakapalag ako kahit papanu.

at anu po best material para sa headers? ung stainless steel para all stainless na ko from headers to scuv or ung aluminized steel?

kahit 13,500k ung stainless pag hihirapan ko na kung un ba ang okay or ung aluminized around 6,800k?

maraming salamat po..

sa Mufflerland po ako nagpagawa.

[bambino]

mag straight stainless ka na lang okey naman yata ang budget

[ghosthunter]

Removing the catalytic converter:

It is a potential fail on your next emissions test. Modern catalytic converters offer very low exhaust restrictions so removing it gives very little added benefits. Its also very expensive to replace so I hope you kept it and didn't leave it at the mufflershop. The only potential restriction would be if you were going to install force induction on your 1.4L engine.


Exhaust systems work on your 1.4L car...

If you are looking into racing your car, you are potentially wasting your money because you cannot even match the power output from a stock 1.6L engine with what rational mods you can do on your 1.4L motor. And your mods will increase your fuel consumption. 1.6l engines could use 2 inch pipes if has enough mods to make it worthwhile. 1.4L engines would be better with smaller like 1.75inch to retain low end engine power.

The trick is not bigger pipes is better, it is keeping the exhaust gasses velocity relatively high without increasing exhaust backpressure much.

As for the "sound", you might think it's macho but its just noise to anyone else around you. You can get the same "performance" if you had a pass-through full size muffler installed and it would be quiet at low to mid range RPMs as well. The droning sound under your car would literally be a headache and potential cause of hearing loss on longer drives.


Header design...

Typically 4-2-1 is a more practical layout which retains better torque in the mid range for engines with torque that peaks in the middle of the rpm range like more common nissan and toyota engines. For honda or mitsu engines, 4-1 is a better design because hp & torque peaks at near the redline.


But overall...

If you really want to race your car, you might want to save your money for real mods and you can start with getting a bigger displacement engine, like a 2.0L n/a engine or better. But frankly, there is more to having a fast car than just more horsepower under the hood.

[v6dreamer]

Then you 'll need this. Dont let your car run w/o catalytic it will affect your performance and gas mileage.

STREET LEGAL with a ceramic catalyst unlike other catalytic converters which are just hollow test pipes with no ceramic catalyst
High quality T-304 full stainless steel body and heat shield cover
Designed for optimal flow
Contains a flow-efficient ceramic catalyst ribbed body for strength
Funnel inlet and outlet for smooth exhaust flow
Use to replace failed or damaged OEM converters
Gaskets and hardware included
2.5 inch inlet and outlet
Direct bolt-on without modification
Utilizes factory 02 sensor position
Compatible with all stock and aftermarket exhaust systems and headers
10-15 HP increase (more with turbo/supercharger)
Lifetime warranty from manufacturer defects

[[archie]]

my take on the headers:

its not the battle of 4-2-1 or 4-1, rather how the car is tuned.

[niky]

Even with a scavenging exhaust (which yes, is annoying... even more annoying than my exhaust... ) a 1.4 liter motor just doesn't have the bite to even take on a stock 1.6.

A stock 1.6 makes about 105 - 115 hp.

A stock 1.4 (carburated?) makes about 80-85 hp. An EFI 1.4 can make about 90-95 hp.

A full intake and exhaust job will net you about 10-15 hp... that's with good header design, already. Cut it short ("scav"), and you're looking at 15-18... which merely matches the horsepower of a stock 1.6... but you're not making as much torque as he is, so you're still left dead in the dust... I've met/raced guys who've gone as far as having racing cams and cam-gears installed in their 1.3s... 1.6s walk away from them on the straights at the race track. Hell, we once had a stripped-out 1.3 Sentra with an intake and a full exhaust. That GA13 could wail. But despite weighing 200-500 pounds more, stock 1.6s could walk away from me at any speed... ...it was fun trying to keep up, though.

Right now, I'm driving a 2.0 Lynx. No matter how loud a 1.6 is (scav and all that), they just can't keep up with me... guess the shoe is on the other foot...

Ghosthunter is right... there's more to being fast than making power... just get a proper exhaust... one with a muffler and a resonator, so it doesn't sound like complete arse on the highway... then spend your money on stuff that counts... good shocks, good springs, brake pads, tires... a 1.4, unless you turbo it, will never be powerful, but since it has a very light engine up front, it's quite fun to drive on a winding road with the proper modifications.

[karlo4real]

1. okay po.. papanu po ba gagawin ko? kasi napalitan na po ng scuv ung sa car ko, might as well tapusin ko na ung exhaust setup ko po, ung minodify na stock headers papalitan ko na po nung racing headers tlga,

2. anu po best material for a header stainless steel po ba or aluminized? please pa help po ako kasi medyo mahal ang headers ayaw ko po magkamali..
13k budjet ko sa headers...

3. 4-2-1 or 4-1? gusto ko po ung pang all around ung power.

4. napansin ko po sa racing headers na nakadisplay dun walang catalytic so papanu po un? pag nag full exhaust wala tlga catalytic?

please pag bigyan nio na po ako.. wag nio naman po ako idown.. kakatpos ko palang ma break in ung car naka 1000km na sya..

2008 kia rio around 100hp pag rounded. I think 97hp ung exact.

ok lang kahit unahan ako ng iba basta masaya ako at may power gain din po ako sa ginawa ko na setup..

[flakez]

we're just putting you in the right direction. ok naman tapusin yung setup mo. though i suggest talaga full exhaust kasi sobra ingay ng scav. tangal tutuli mo nyan at sayang ang sounds mo kasi hindi mo na rin maririnig. hehehe. benta mo na lang kung ok lang sayo. hehehe.

i'm using 4-2-1 headers for daily driving. pero sabi nila yung 4-2-1 na midrange tapos 4-1 na pang top-end is already a thing of the past. hehehe. kaya hindi ko na din masusuggest yung tamang header design for you.

seriously, yung power gains na makukuha mo diyan is very minimal. maswerte ka na kung mararamdaman mo talaga. you'll have to consider getting a decent air filter to complete your setup.

[karlo4real]

Sa headers nio po may naka kabit na catalytic converter or wala na? panu po kayo pumapasa sa emission test?

[niky]

Emissions testing in the Philippines is a joke. As long as your engine runs properly (clean spark plugs, carb or fuel injectors working all right, does not burn oil), you should be able to pass emissions.

As for what's the best set-up... what car is it? Not all 1.4s are the same.

If you can afford stainless, get it. Anything less just looks like crud, and won't do your car's resale value any favors. Actually... any mod will negatively affect a car's resale, but if it looks good, the buyer may overlook it.

[ghosthunter]

As for what's the best set-up... what car is it? Not all 1.4s are the same.

The car is a Kia Rio 1.4L = 96hp (based on wiki)

[ghosthunter]

Sa headers nio po may naka kabit na catalytic converter or wala na? panu po kayo pumapasa sa emission test?

My car's catalytic converter is attached under the car. So it's a matter of just moving it to the new setup. But in my case, I had a turbo upgrade on my corolla so I removed the stock catalytic and replaced with a larger capacity version.

[ghosthunter]

i'm using 4-2-1 headers for daily driving. pero sabi nila yung 4-2-1 na midrange tapos 4-1 na pang top-end is already a thing of the past. hehehe. kaya hindi ko na din masusuggest yung tamang header design for you.

Actually its a matter of matching the proper exhaust layout for your engine's performance to maximize it's gains.

[karlo4real]

okay so papasa po pala hehehe... okay I'll get ung stainless steel sa mufflerland any design na pwede ko macopy? 4-2-1 nalng kukunin ko since hindi nmn ako nag hihirevving parati tsaka baka with this performance header matone down ung sound ng exhasut ko.

eto pla ung pic nung ginawa sa stock headers ko na gusto ko na mapalitan:


http://i22.photobucket.com/albums/b3.../headersko.jpg

anu po pwede ko pag gayahan ng 4-2-1 headers? ok na ba sa mufflerland ko na pagawa to?

[ghosthunter]

tsaka baka with this performance header matone down ung sound ng exhasut ko.

nope. it will be loud and droning to the ears.

eto pla ung pic nung ginawa sa stock headers ko na gusto ko na mapalitan:

http://i22.photobucket.com/albums/b3.../headersko.jpg

anu po pwede ko pag gayahan ng 4-2-1 headers? ok na ba sa mufflerland ko na pagawa to?

Why not just remount the catalytic under the car? ... the reason why the catalytic is mounted close to the engine is to make it light off earlier. Mounting it a bit further away would delay the light off but not impede it's function.

[karlo4real]

anu po pala ung piping size ng headers ko is 2 inches is enough? or too big para sa 4 pipes ng headers?

thank you!!!

[karlo4real]

anu po ung light off will that affect the flow? or restrict the flow? okay i was thinking of relocating it at the end of the headers then the scub... i'll draw it here it, will this be okay?



kung okay yan palalagyan ko ng flange para bolt on sa existing exhaust setup ko kung sakali papaemission test ako salpak tpos alis nalang ulit, hehehe!

thank you!!!

any suggestion anu pwede ko gayahan ng headers??

anu pa kaya ok pagawan ng headers? ok na sa mufflerland? mandrel bend SS palalagay ko po.

[ghosthunter]

anu po ung light off will that affect the flow? or restrict the flow?

"light off" refers to the catalytic converter reaching it's operating temperature. It will not affect the flow. It will just affect the amount of time required for the catalytic converter to reach operating temperature, which means, if you are going to do an emissions test, you have to remember to warm up the engine well so the catalytic is also warmed up.

okay i was thinking of relocating it at the end of the headers then the scub... i'll draw it here it, will this be okay?

http://i22.photobucket.com/albums/b3...asuttypeko.jpg

kung okay yan palalagyan ko ng flange para bolt on sa existing exhaust setup ko kung sakali papaemission test ako salpak tpos alis nalang ulit, hehehe!

the location is fine but i'll warn you that a scub exhaust isn't worth it.

any suggestion anu pwede ko gayahan ng headers??

anu pa kaya ok pagawan ng headers? ok na sa mufflerland? mandrel bend SS palalagay ko po.

Since you are dead-set to going scub ... you might want to do 4-1 headers with 1.25 inch primaries and exiting to 1.75 inch main exhaust piping.

[karlo4real]

ahh hehehe! may plano na po ako gagawin ko nlng bolt on ung catalytic like the one posted by v6dreamer para pwede ko ikabit agad or alisin,.

ang stock pipings po pala ng Rio ko is 2 inches lahat, nagulat nga kami pero 2 inches parin ang nilagay ko na scub kakatakot baka kasi masungaw sya..

tanung ko lang gusto ko po ung parang ramhorn na headers san kaya ung pwede ko pag gayahan?

anu kaya ang pinaka best na headers sakin 4-1 or 4-2-1

kasi eventually mag muffler din ako gusto ko lang maexperience ung ganito ung car minsan lang gamitin once a week ikot lang sa village pasyal lng minsan. may ibang car pa kasi kmi binili ko si baby Rio para may pag aari ako hehehe ung akin basta di ko maexplain cguro isa na ko sa pinaka bata d2 sa forum. di ko pa magagalaw ung engine kasi mavovoid ung warranty kaya I/H/E mods lang po...

[flakez]

ahh hehehe! may plano na po ako gagawin ko nlng bolt on ung catalytic like the one posted by v6dreamer para pwede ko ikabit agad or alisin,.

ang stock pipings po pala ng Rio ko is 2 inches lahat, nagulat nga kami pero 2 inches parin ang nilagay ko na scub kakatakot baka kasi masungaw sya..

tanung ko lang gusto ko po ung parang ramhorn na headers san kaya ung pwede ko pag gayahan?

anu kaya ang pinaka best na headers sakin 4-1 or 4-2-1

kasi eventually mag muffler din ako gusto ko lang maexperience ung ganito ung car minsan lang gamitin once a week ikot lang sa village pasyal lng minsan. may ibang car pa kasi kmi binili ko si baby Rio para may pag aari ako hehehe ung akin basta di ko maexplain cguro isa na ko sa pinaka bata d2 sa forum. di ko pa magagalaw ung engine kasi mavovoid ung warranty kaya I/H/E mods lang po...

yung ramhorn alam ko usually sa mga FI ginagamit.