Headers po!

[niky]

Kia Rio?

2 inches isn't really optimal for a 1.4, but if that's stock size, I suggest you stick to that.

The best upgrade for a Kia Rio is a surplus Kia Carens 2.0 diesel engine.

Failing that, mags with better tires are a must. The Rio's stock tires are pure crud. Stiffer shocks would also be nice, but those would be hard to find, locally.

If your current exhaust manifold (header) carries your catalytic converter, that's all that's keeping you from losing exhaust velocity. You might find that with a scavenger-type exhaust and a performance header, your car will sound poppy, sputtery and will not drive well at all at low rpms.

The better set-up would be to have performance headers, leave the stock 2" midpipe, and replace the muffler with a freer flowing one. Then change the intake out for a K&N head. You're done. If you want extra kick after that, get a piggyback performance computer, like an S-AFC or a Unichip. For 20-30k pesos, that'll add another 10-15 hp to the car. Beyond that, you're looking at expensive mods for little gain. Either you go full turbo (about 150k) or full naturally-aspirated (with cams, camgears, high-comp pistons... about 200k).

But really, the first thing you should consider is whether your brakes and tires can cope with more power. Do the simple stuff, then upgrade your car's handling.

[karlo4real]

thank you... Im gonna call Muffler land na gagawan na nila ko ng flange kasi wala pa sila katulad sa car ko, full stainless na ko from headers to my scuv para maganda nmn itsura and hopefully my performance gain na maganda.. wag lang loss ng power..

so ung 4 tubes ng headers 2inches ba un? going down pababa? magsasama sila.. 4-2-1 pala kukunin, compatible nmn sa scav ko db?

after nito mags nmn 15's with 50 series tyres, kasi babagal daw pag malaking rims..

[karlo4real]

may tanung po ako mainit daw po ung stainless steel na headers? at minsan na bibitak dahil mas brittle sya kaysa sa aluminized?

anyone?

[karlo4real]

huhuhu nalaman ko na hindi pala stainless ung flange sa mufflerland pagnagpagawa ka sa kanila

sino paba nakaka gawa ng mandrelbent na stainless steel lahat including flange?

[niky]

The flange is okay. It's so thick that it won't likely rust through.

Stainless is durable enough as a pipe. It'll let through more heat than your stock exhaust manifold, but so will an iron header, as both are much thinner than the stock one.

[karlo4real]

may dillema parin po ako di ko alam kung alin ba mas nararapat kung ung aluminized headers at 6,8k or ung stainless headers at 13,5k? sa tingin nio guys tatagal naman ung aluminized db? huhuhu.... nasira daw bender nila for stainless sabi sakin, ung sa HP racing nmn ang layo po hassle po para sakin.. pero nagawa din daw sila ng headers...

no choice kundi mag aluminized nalang ako.. cnu po naka aluminized d2? panget ba sya? anu kaya pwede cover nun ung thermal paint? sana ung hindi na ngingitim... panget daw pag thermal wrap mabilis ma wear ung headers mo...

Sir niky anu po headers nio stainless po ba?

[niky]

Stainless. I personally feel it's worth the extra money to put something in the engine bay that looks good. I've been there, done that... went the cheap route before, and got sick of iron and aluminized... they always look like crap after a few years... even if you paint them.

Theoretically, thermal wrap will decrease the life of your headers, but I have yet to meet anyone not driving a 10,000 rpm racing car who's had a header fail because of thermal wrap...

[karlo4real]

huhuhu... baka mag Aluminized nalang muna ako bibili pa kasi ako ng rims huhuhu... pag pumanget na ung headers ko na aluminized or nasira tsaka ko nlng papa stainless atleast may na ipon na ulit ako nun.. ngayon palang naman ako mag momods... haay.. pero proud ako kasi dugot pawis ko lahat to from car to mods, hindi COD (care of daddy) or COM (care of mommy) hehehe..

[aspire5602]

mga sir, newbie po on car modding.. actually ala pa talagang na gawang mod sa car...

question ko po, ok pa rin po ba na mag 4-2-1 tapos ung three way catalyst is connected pa rin? parang ganito..
(i mean is it still worth magheaders? plan ko gamitin lang ung existing CAT)



i'm getting confused kc if magpaheaders or not... kc ayaw ko na mawalan ng cat converter ung car...

2005 Nissan Sentra N16 GS A/T 1.6 QG16DE

[ghosthunter]

First of all, your A/T would negate most of your gains with the headers.

Anyway, you can have the headers and reposition the catalytic converter further down the line. The catalytic would still function but light-off would be delayed somewhat.

[aspire5602]

First of all, your A/T would negate most of your gains with the headers.

Anyway, you can have the headers and reposition the catalytic converter further down the line. The catalytic would still function but light-off would be delayed somewhat.

Sir ghosthunter, why would A/T negate the possible gains ng headers?

Sir what if ung positioning ng CAT ai the same nung nasa pic sa previous post above, will it render the headers useless even more?

[karlo4real]

Para sakin kung hindi naman racing keep it stock nalng po ayaw ko magaya ka po sakin nag palit tpos binalik ko ulit sa stock tpos dun sa shop na pinag balikan ko nung stock may nag spark sa engine bay ko ayun sunog ang electricals ko, ang power window, aircon, blower baterry check light.. buti nalang under warranty at nakalusot ako sa casa, inayos nila ulit at buti nalng fuses lang ang nasira hindi pumasok sa mismong parts.. ecu, alternator etc... ngayon prob ko san ko bebenta ung parts ko na un.. sayang ang pera ko, ngayon may bagong rims na ako 17's susunod ko sound set up naman... un lang always clean ur car and keep it shiny... nag sisis tlga ako kung maibabalik ko lang...

[aspire5602]

Para sakin kung hindi naman racing keep it stock nalng po ayaw ko magaya ka po sakin nag palit tpos binalik ko ulit sa stock tpos dun sa shop na pinag balikan ko nung stock may nag spark sa engine bay ko ayun sunog ang electricals ko, ang power window, aircon, blower baterry check light.. buti nalang under warranty at nakalusot ako sa casa, inayos nila ulit at buti nalng fuses lang ang nasira hindi pumasok sa mismong parts.. ecu, alternator etc... ngayon prob ko san ko bebenta ung parts ko na un.. sayang ang pera ko, ngayon may bagong rims na ako 17's susunod ko sound set up naman... un lang always clean ur car and keep it shiny... nag sisis tlga ako kung maibabalik ko lang...

Thank you po sa advise sir and for sharing your experience... and thanks din for your thread.. nakikihitch lang ako... Thanks!

Actually hindi pa ako sure na magpaheaders talaga kasi sa pros and cons... I'm not into racing din po... Un nga lang I just want more power sa car...

[flakez]

Para sakin kung hindi naman racing keep it stock nalng po ayaw ko magaya ka po sakin nag palit tpos binalik ko ulit sa stock tpos dun sa shop na pinag balikan ko nung stock may nag spark sa engine bay ko ayun sunog ang electricals ko, ang power window, aircon, blower baterry check light.. buti nalang under warranty at nakalusot ako sa casa, inayos nila ulit at buti nalng fuses lang ang nasira hindi pumasok sa mismong parts.. ecu, alternator etc... ngayon prob ko san ko bebenta ung parts ko na un.. sayang ang pera ko, ngayon may bagong rims na ako 17's susunod ko sound set up naman... un lang always clean ur car and keep it shiny... nag sisis tlga ako kung maibabalik ko lang...

wow. binalik mo pala sa stock. that's a good move specially don sa scav mo. hehe. pero yung headers kung nakabili ka na is sana niretain mo na lang.

[ghosthunter]

Sir ghosthunter, why would A/T negate the possible gains ng headers?

The A/T tends to be sluggish and I know that first hand since I also drive a car with A/T tranny. To gain any decent amount of performance, you should be looking at additional 20hp or more. To get that, you would be looking at turbo upgrades or engine swaps already. N/A mods would just waste your money.

Sir what if ung positioning ng CAT ai the same nung nasa pic sa previous post above, will it render the headers useless even more?

What you want to do with the headers is to create a smooth flow for the gasses to follow. The CAT at that position would be like putting a big rock in the middle of a smooth flowing stream of water.

Also you have to make sure the CAT is of a low restriction type. Most modern CATs are of this type to help reduce the backpressure. Old type cats tend to lower engine performance because of restrictions to the flow of exhaust gasses.

[ghosthunter]

Actually hindi pa ako sure na magpaheaders talaga kasi sa pros and cons... I'm not into racing din po... Un nga lang I just want more power sa car...

You can start with air filter mods and maybe a low restiction muffler (similar to your stock muffler but pass-thru design internally).

Advance your ignition timing and use higher octane gasoline to avoid detonation.

You can gain some performance that way BUT your fuel economy will suffer.

[karlo4real]

wow. binalik mo pala sa stock. that's a good move specially don sa scav mo. hehe. pero yung headers kung nakabili ka na is sana niretain mo na lang.

hehehe opo.. grabe nag aalarm pati kotse ng kapit bahay namin sobrang tahimik pa naman pag ka gabi na kakahiya..

and ayun nga lakas ng vibration sa una lang okay.. sa headers kasi namoblema ako sa catalytic kaya better balik nalang sa dati.. ngayon im looking for a buyer kahit sa scav ko nalang... hahahaha..

[aspire5602]

You can start with air filter mods and maybe a low restiction muffler (similar to your stock muffler but pass-thru design internally).

Advance your ignition timing and use higher octane gasoline to avoid detonation.

You can gain some performance that way BUT your fuel economy will suffer.

Thanks for the inputs sir ghost rider...

I had already been using K&N drop in filter and 95 RON gasoline.. but I dont intend to advance ignition timing... hehe..

[projectcar]

sir good day! ask ko lng po kung ok na palita ko ng 2" ung midpipe ko? nag headers kasi ko ng 4-2-1 tapos nka chambered jasma muffler ko. pero ung pipe ko stock p din n 1.75. balak ko po palitan ng 2" galing headers hanggang muffler. stainless nga pala headres ko ok po b n stain less din ang pipe or kahit hindi na. honda vtec 96 1.6 po pala car ko. tnx

[cdjay23]

Hi po magbabago po ba tunog ng car ko if pinalagyan ko siya ng UEL headers.. Naka chambered muffler na po siya...Will the sound change or hindi? thanks po