Hi to all forumers and sifuuss out there.

First of all, I would like to wish you guys a Selamat Hari Raya and Happy Merdeka.



I am having trouble with my mum's car Proton Wira aeroback 1.3GLi 4G13P year 2002, manual transmission. (just verified with the Grant)

The car just went for top overhaul early this year (around Jan-March) due to the white smoke coming out from the exhaust and the mechanics said that its the valve seal had hardened. Change them and the car does not have any problem anymore. Throughout the age of the car, it is well maintained (service accordingly). My mum rarely use the car as she is more comfortable in riding motorcycle.

The car is running stock until few months back (around march-apr), my brother installed grounding cables and a VS.

During the mid of May, I borrowed my mum's car for my industrial training transport in KL, and to my surprise, I found out that the car pick-up is quite bad. At low rpm (especially after traffic light stop and start to move), i can hear the engine roar but there is lack of power to move. For instance, the car beside me usually overtake my car during a traffic stop. Its not so responsive. After a constant acceleration, I can feel that the power is back and the car is able to push forward. For instance, after 5 seconds constant acceleration (without further pressing the gas pedal) in gear 3, i can feel the slight "kick" before changing to gear 4.

My question is, what causes this to happen and is there any way for me to improve the performance without burning a hole in my pocket? Probably a minor performance change.

I had done some brief research and price checking on LYN and there are a few mods such as:

1. change extractor to 4-2-1 = rm100 galvanised steel type
2. LCP = RM200++ jasma brand
3. intake system (performance air filter drop in type) = rm90++ jasma brand
4. short shifter (for faster shifting?) = necessary??

If possible, I would like to remain the car as stock (minor mods will do) as after my industrial training, I will return the car to my mother. Probably will borrow it again in another 2 years time after I graduate.

Sifuus out there, please do advise on which mods to do first and so..
Probably if the first mods can have better pick up after changed, i would not go further into other mods..

thanks in advance~

This post has been edited by edlimcs: Sep 1 2011, 11:19 AM

I only can help abit from those part ... u researched out ...

I had done some brief research and price checking on LYN and there are a few mods such as:

1. change extractor to 4-2-1 = rm100 galvanised steel type [ As Long its mandrel bent then its ok .. Get cap ayam 1 u will get power loss instead ... ]

2. LCP = RM200++ jasma brand [ Some ppl say it increases acceleration/pick up ... But when i use for sometime i only feel it makes ur rpm goes up easier only ... mean u can reach to your powerband easily i assume ]

3. intake system (performance air filter drop in type) = rm90++ jasma brand [ If u willing to pay more About 200+ KNN drop in is quite not bad... Highly recommended ]


4. short shifter (for faster shifting?) = necessary?? [ If u wan a even more fun driving u can install it But mind u it will be more stiffer than stock shifter ... Soon u will get used to it ... ]


I'm a ex 4g13p owner too

Cheers mate...

thanks bro peekaboo for sharing yr experience.

1. since you mentioned on the cap ayam extractor, is the power loss very significant? there is one forumer having a promotion and the price is quite attractive. it is a mandrel bent. btw, what is the difference of mandrel bent and others (and what are the "other" type available?)? Do i need to change the extractor only or the whole exhaust system?

2. easy hike in rpm means a better torque improvement right? which means a better acceleration? (correct me if im wrong) I heard some of the brands have damper together and some doesn't. what are the differences? how much is the installation done?

3. i've also thought of K&N but i found out that the re-oiled process is quite troublesome for my mother to maintain. Well, a 50+yrs old woman would complain as its quite troublesome. The jasma type only need to wash without any reoil and i thought it would be a simple maintenance task for my mother.

4. does it means that it's not necessary to increase the pickup right? if so, i will phase out (perhaps install this in future; at least not now)

thanks and hope you could guide me as i am learning..

Try to get better deal with the Jasma LCP, try finding fellow forumer the_catacombs. Price should be within RM 160. Extractor, try to check on the quality before buying. Drop in air filter, try getting Works Engineering/Simota ones if possible.

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Added on September 1, 2011, 2:50 pmShort shifter not necessary.

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Added on September 1, 2011, 2:52 pmCap ayam also can one, but please check the quality first before buying, the finishing, the bending and such.

Damper ones are definitely better, but I hear they're also heavier, besides being more expensive. Since your car is not new, I don't think it might be wise to spend about RM 600 just for the LCP.

This post has been edited by GEFORCEXTREME: Sep 1 2011, 02:54 PM

hi bro GEFORCEXTREME ,

1. how do i check the extractor quality? the how does the "finishing and bending quality" considered GOOD? sorry but i really dont have any idea on that. hope you could teach me.
btw, should I look forward to stainless steel type or the galvanised type of extractor? or perhaps consider to do the whole exhaust system (is it necessary?)?

2. yeah, i've pm-ed him before and its around that price range. Now just need to know on roughly the installation cost. Anyone that did before, how much is the installation?
thanks for clearing my doubts on the damper type. looks like i will straight hunt for the one without any damper.

3. i've looked into the simota as well but too bad, the filter need to be reoiled. Done researched and found out only Jasma brand and Redline brand of drop-in filters do not need to be reoiled.

4. short shifter = i shall leave this part for later as it doesn't give any performance improvement instead of faster and stiffer gear shift.

On the above option 1,2 and 3, which 1 should i do first? I had a tight budget of rm300 (plus minus abit)

please do advise..

thanks

http://forum.lowyat.net/topic/742828

Mandrel bent extractors with not expensive prices... Maybe u can find ^ Above ...

hi bro peekaboo,

yep, he's the one i am mentioning on my first post with rm100 galvanised extractor with flex pipe.
is this considered "cap ayam" type or is it a good (not the best like powerzone) type of extractor?

what is mandrel bent? how to differentiate?

thanks for everything

sure boh?
i know alot of fella use custom made cap ayam 4-1 extractor all gain big horses 1 wor
i know i fella stock myvi 1.3 change cap ayam 4-1 extractor and cap ayam mufler and cap ayam air filter can get 89 horses opposed to factory 73 horses
and these days most extractor are mandrel bend
gone of the old golden days where most use crush bend

Sorry la sifoo itu i macam copy paste from some where 1 u know where . Sound familiar

so sifu sid,
meaning its ok if i continue with the 4-2-1 mandrel bent by kweng?

i just want it to last long and of course, with better peformance

btw, what is the difference between a stainless steel type and the galvanised type (other than the cosmetic and weight)?
or both also the same? does the weight affect the performance gain?


thanks a million

try ask this sifu to tune for you..
http://forum.lowyat.net/index.php?showtopic=1277592&hl=

unker? haha.. my car is efi.. unker only tune carby~
thanks

oopps sorry tot carbie. if n.a mfi let start with cold air intake. just buy a good filter like k&n, simota or apexi. the induction piping can be easily source @ kedai abang then diy the heat shield. next will be ignition cable & plugs. after that go for 4-2-1 mandrel with 2" piping. then can play play with ignition timing & t/b a/f ratio. if got budget then can go for piggyback ecu like dastek unichip and high lift cam.

I second that

Since he's on tight budget just get a mandrel bent 4-2-1 and a good back muffler [ can get it from kweng84 ] bah ... Remain stock piping size which is less than 2" if im not mistaken 1.75 / 1.8" . 2.0 " piping on a 1.3 will lose some power correct me if im wrong ... some more to repipe the whole car to 2.0 " that would cost more... stock piping ftw....

Good filter kn&n , simota , apexi yes but TS make sure u get the original 1 as there's alot fake one's in market... Ask kweng what piping size for a 1.3 car i believe he will surely say 2.0 is too big...

hi bro,
i am quite surprised with yr recommendation. anyhow, my ecu is siemens vdo type where it is self learning. i dont think i am able to play the a/f ratio. or can i? (not so sure )

with the performance spark plugs and the cables, can they really improve the performance?
if they can do a quite significant gain, then which cables and plugs should i look into? can please recommend some?

for ecu, i think i will remain stock and i want to keep my engine stock later my mum open the bonnet, and see alot of "bling bling" stuffs, she will sure nag~

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Added on September 1, 2011, 9:55 pmalright bro~~ thanks for the info! really appreciate it alot..
as for the order, which should i "change" first?
for the exhaust, only do the 4-2-1 and find a suitable muffler? do i need to remove cat con or change with bullet or straight pipe?

somehow, i can feel modding is very addictive

This post has been edited by edlimcs: Sep 1 2011, 09:59 PM

Yes it is , modding is quite fun actually ... feel free to join our 4g1series group in facebook ...
http://www.facebook.com/groups/113381522046091/

Can learn more there ... But beware the poison is strong ...

Just give kweng84 a call he will advise u

Cheers mate...

thanks bro,

added already.. need to prepare antidote, later poison overdose

alright, will contact kweng later.

back to the topic on the order of mods, which should i do first?

just read on post regarding LCP in LYN and they said that not much significant when installed on 4G13P. Is it true?

thanks

LCP will make a difference for sure
What you need is the response

Sorry bro, i dont quite get wat u mean. Mind to elaborate further?

If yours is a VDO ECU, this is what I suggest.

Remain stock filter, replace your snorkel with the flexible pipe for cooler outside air. Those drop ins won't give you any difference.

Get the extractor, after the flexi pipe, use one mid box. Maintain stock piping. At the rear get a big box straight flow muffler (if you want to maintain noise level).

Plugs, use back ori copper plugs, and standard plug cables. Those are the best for stock engine. Don't waste money on those performance plugs and cables.

Lastly, would be regular maintainence. Check fuel filter, clean throttle body, use better engine oil. Regular maintainence will keep the engine healthy. Better than those modded cars, but having blue smoke coming from their exhaust.

I drive a 4g13 VDO myself, and this is so far the best setup after wasting so much money.

Don't listen to those asking you to put 2 inch pipe and so on. Your aim is daily driving, so mod towards what gives your the best drivability for your car and yourself.

Edit: Those lightened crank pulley, will never work on your VDO engine. The crank sensor for VDO and MMC is different, you will feel more power loss than gain. These are the mods that are as close to stock as possible.

This post has been edited by damone: Sep 2 2011, 05:07 PM