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 Basic Intake and Exhaust Modification Guide, for normal aspirated cars v1.0

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EliteHunter
post Apr 19 2008, 05:35 AM

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QUOTE(alamdamai1 @ Apr 15 2008, 12:38 PM)
icon_question.gif After reading the entire 20 pages of postings made by members here, could i ask how do we resolve 2 problems that a car owner will encounter when he changed his stock extractor to a tuned performance 4-2-1 type :-

1. Omission of Heat Shield - Without the shield, my existing stock CAI will not be able to draw in hot air during the regular morning start-up and normal cruising.  I noticed this would worsen the FC as i had previously experienced before in forgetting to connect the vacuum hose connected to the CAI flap that draws in hot air from the heat shield.  Upon realising why my fuel meter needle begun to drop faster then usual, then only i realise the vacuum hose had been disconnected when i service my plugs.

Radiated heat from the exposed upgraded extractor will also be no longer buffered by the heat shield. Would this effect the cooling efficiency of our radiator and causing our engine to run hotter and thereby lowering FC again?

A proposal by a member to heat wrap the extractor was not recommended as it would elevate the operation temp. of the extractor and thereby increased its risk of failure.

2. Increased in Sound - With stock or even with replacement midbox and muffler, members have experienced an increase in sound emission, hence how can we reduce the louder sound to the same original emission level before we replace the extractor?

Really appreciate it if all the sifus in this forum could assist this noobie here on how to resolve my both concerns as i'm very keen to upgrade my stock extractor but hopefully would not cause another problem later. notworthy.gif
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1) bro, custom make a CAI and a heat shield. The radiated heat from the extractor will not effect the cooling efficiency, thats why there is a radiator fan. The only problem if there is no heat shield is the hot air that is sucked by your air filter. Thats all. Be creative on the CAI route/materials. I heard from someone IF u wrap the extractor, in a long term it will crack, but it is better than a heat shield. So, i have no comments on wrapping the extractor.

2) Add in a center bullet. Easy.
EliteHunter
post Apr 25 2008, 08:46 AM

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QUOTE(ryan_hustler @ Apr 24 2008, 11:20 AM)
[/spoiler]

if you go for a thermal wrap for the extractor what will happen?From what i know,if you thermally insulate the extractor,the heat of the exhaust gas will be high,hence the velocity of the gasses will be faster so your exhaust system will perform more efficiently..is this wrong?
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wat u saying are true. but in a long run, heard ppl say will crack your extractor.
remember, every item has its pros n cons.
EliteHunter
post Aug 23 2008, 04:39 PM

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u wan pickup or top speed?
u wan noisy or quiet?
EliteHunter
post Aug 25 2008, 12:28 PM

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QUOTE(NicJolin @ Aug 23 2008, 05:16 PM)
can i have pickup and top speed together? i heard there's a hybrid 4-2-1. but not quite sure about how and wat is tat...
i dun like noisy type. but it doesn't need to be as quiet as the stock 1.. a bit of noise is ok.
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never heard of the hybrid 4-2-1...
anyways, if u wan pickup n topspeed, just change the extractor lor.. 4-2-1.
else maintain standard. no noise, more pickup, more top speed.
EliteHunter
post Aug 27 2008, 11:51 AM

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yup
powerzone do have it.
but 1 thing im confused is how it works..
and if install 3-2-1 it will take a lot of space rite? so then your engine bay so sempit adi..

EliteHunter
post Aug 28 2008, 08:45 AM

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i dont think have ler...
coz powerzone in selangor only..
so u have to come down to selangor

anyways, the price is around 300+ , stainless steel
EliteHunter
post Sep 22 2008, 05:45 AM

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me too. kena sound by parents n siblings..
but wat the hell, my noise my car rite?
if dun wan loud exhaust dun drive my car la hahahah
EliteHunter
post Oct 24 2008, 09:34 AM

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yes.. a bit only.
EliteHunter
post Nov 26 2008, 04:50 PM

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Usually cap ayam extractor is not chrome. highest it can go is stainless steel. and cap ayam dont do 3-2-1 extractor, only 3-1. And for catalyctic converter(cat con), is inside the stock extractor. So if u change the extractor, means u remove the cat con also.

About the silencer, u mention it the long type, means its a bullet.

And about the muffler/tailpipe, cant really understand what u meant. Need pics of it.

Air filter. Open port air filter on kancil. Kancil is using carburetor, and the "i don't know what the hell is that thing" your mech tell u to use, means u are using cone type open port air filter. Not the UFO ones for carburetor rite? The stock air filter is on top and covered with air filter box. Your mech throw away the air filter box and replace it with an air ram to connect the cone type open port air filter. The air filter box have a few hoses and 1 hose is going to the head of the engine. The air ram does not have any holes for hoses. So, to cover the hole at the engine head, he use this "Air breather". That is the "I don't know what the hell is that" name. And how does it got so oily.. i don't know. I'm using it and its oily too..

What you should do is change to 1.4 or maybe 1.5 inch piping follow standard route, use 1 bullet and 1 s-flow muffler. quiet enuf yet powerful.

Just my opinion for the setup only la..
EliteHunter
post Nov 29 2008, 05:09 AM

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no problem wan la.. my white steel also become brown adi.. just change of color wan..

zilole9729: about the piping, must ask the mech at shop about the size.. i think is around that size for kancil coz my kelisa is 1.6 inch piping.
EliteHunter
post Nov 30 2008, 08:18 AM

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sum say yes, sum say no..

but definately short bullet sounds louder.
EliteHunter
post Dec 5 2008, 01:54 PM

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1) correct
2) Powerzone is a reputable company.. better pick their items.
3) Yes, stock is s-flow
4) Depends.. u wan top speed or acceleration?
5) Change thicker spark plug cable and change to Iridium spark plugs (just my recomendation)
6) No. Do not change camshaft just YET. Changing to racing camshaft is the last upgrade possible.. like oversize piston, change compression, etc etc then only can change camshaft. or else.. u'll just gain 1-3bhp and 1-4Nm torque.

After all those upgrade stated above, ur car can feel like 1.6 already..
EliteHunter
post Dec 6 2008, 08:24 PM

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few bhp only.. but u'll feel the difference
EliteHunter
post Jan 6 2009, 09:41 PM

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waiheng =)
EliteHunter
post Jan 7 2009, 02:20 AM

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waiheng sunway.. same road as n1, kakimotor, ksp power etc etc.. at the end near the traffic light there..

anyways, if u wanna change fullset, then say u wan change fullset standard.. if just change 1 or 2 parts, cheaper. ask their recomendation on what to change to your liking.
EliteHunter
post Jan 17 2009, 05:17 AM

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If u guys dont wan loud sound, dont use muffler. Use tail pipe and replace the muffler with another bullet. Sure lesser noise.

If still wan use muffler, and wan silence, then add another bullet also.. but less power la..

 

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