4g15 mod

[Azrul80]

Hi all, i using proton wira with standart engine, 4g15 carb. now I plan to mod with 4g18 part, like is crank shaft, piston and con rod, because I listen so many ppl already done with it. How to make it? Any people n fren have done mod like this, how about performance and whp? Sorry laa, I still nubis...

 

[issuzark]

4G15 injection user here. Good to know people are still modding Wiras! I honestly have no idea what to do next actually. So many routes to go. I'm trying to keep it as subtle as possible though.

 

[Izso]

You guys live in what country exactly? There are tonnes of Wira modders here in ZTH and other places.

4G18 Waja crank + CPS 1.6 77mm pistons = stroking goodness on a 4G15 engine. Best part is it's completely undetectable. There's lots you can mod for subtle power gains without making it obvious. All a matter of $ (budget)

 

[issuzark]

You guys live in what country exactly? There are tonnes of Wira modders here in ZTH and other places.

4G18 Waja crank + CPS 1.6 77mm pistons = stroking goodness on a 4G15 engine. Best part is it's completely undetectable. There's lots you can mod for subtle power gains without making it obvious. All a matter of $ (budget)

Same country as you really. But I'm sort of thinking that not a lot of people mod Wiras anymore because they're old?

 

[Izso]

Same country as you really. But I'm sort of thinking that not a lot of people mod Wiras anymore because they're old?

No no no.. old is gold. Why do you think GSR, Mivec and 4G93 engines are still so expensive at halfcut shops? Cuz there's demand! That means lots of Satria / Wira modders out there la

 

[issuzark]

No no no.. old is gold. Why do you think GSR, Mivec and 4G93 engines are still so expensive at halfcut shops? Cuz there's demand! That means lots of Satria / Wira modders out there la

That's the problem. Supplies are getting lesser and lesser. ;_;

 

[RENESIS VIII]

No no no.. old is gold. Why do you think GSR, Mivec and 4G93 engines are still so expensive at halfcut shops? Cuz there's demand! That means lots of Satria / Wira modders out there la

Even 4G92 MIVEC halfcut cost like 9k and above. 4A-GE 20 Valve cost less than that.

 

[Izso]

That's the problem. Supplies are getting lesser and lesser. ;_;

That's why I'm asking where you from. If you give me 10k now, I can immediately get you a nice Mivec or 4G93 very easily. Where got lesser and lesser?

Anyway, let's talk about modding!

Who got a 4G15 and what's your budget? Come come let's project the car

 

[issuzark]

That's why I'm asking where you from. If you give me 10k now, I can immediately get you a nice Mivec or 4G93 very easily. Where got lesser and lesser?

Anyway, let's talk about modding!

Who got a 4G15 and what's your budget? Come come let's project the car

I've got one! But budget and the rest are unknown. At the moment my family is kind of pushing my to change cars next year, and they kind of want me to get a Myvi. Which to me. Is quite the bad. So I'm not sure what's coming off though. I like my 4G15.

 

[Izso]

I've got one! But budget and the rest are unknown. At the moment my family is kind of pushing my to change cars next year, and they kind of want me to get a Myvi. Which to me. Is quite the bad. So I'm not sure what's coming off though. I like my 4G15.

Is yours an aeroback or sedan? Either way it'll be bigger than a Myvi. Same 1.5L capacity but the Myvi probably will do better FC. Parts are expensive for the Myvi compared to the Wira and maintenance is easier with the Wira. So easy in fact, you can DIY almost everything.

For a small sum of money, you could refurbish the interior, replace worn/torn parts and probably a small paint touchup the car will last you easily another 10 years. Only thing is insurance may not be ideal since there's a 5% loading on cars older than 9 years.

Wira has more space than the Myvi and more modding potential than the Myvi. The only downside unfortunately - it's higher in the theft scene than the Myvi. So secure it well and you'll be good. If you know how, you can custom mod the Wira to be harder to start/steal too. Oh and lastly 4G93T / Mivec / GSR are cheaper than K3VET.

Hehehehe.

 

[vr2turbo]

That's why I'm asking where you from. If you give me 10k now, I can immediately get you a nice Mivec or 4G93 very easily. Where got lesser and lesser?

Anyway, let's talk about modding!

Who got a 4G15 and what's your budget? Come come let's project the car

Fingers still itchy after selling off the hero.....

 

[RENESIS VIII]

Since everyone is talking about 4G15 mod, today a mechanic told me some of the downsides of modding 4-2-1 extractor. According to him, the absence of heat shield for extractor will increase the temperature of my engine bay which might melt or damage the plastic fan infront of the extractor. Another point is, he says these aftermarket extractors have a thinner piping wall compared to stock which he says probability of it cracking is higher. True?

 

[gunnerzz]

Since everyone is talking about 4G15 mod, today a mechanic told me some of the downsides of modding 4-2-1 extractor. According to him, the absence of heat shield for extractor will increase the temperature of my engine bay which might melt or damage the plastic fan infront of the extractor. Another point is, he says these aftermarket extractors have a thinner piping wall compared to stock which he says probability of it cracking is higher. True?

some cheap one do crack easily.
most expensive type are thicker.still,thinner than oem as to reduce cost.

on the heat issue,that is why they invent thermal wrap.

---------- Post added at 07:20 PM ---------- 6 hour anti-bump limit - Previous post was at 07:16 PM ----------

Hi all, i using proton wira with standart engine, 4g15 carb. now I plan to mod with 4g18 part, like is crank shaft, piston and con rod, because I listen so many ppl already done with it. How to make it? Any people n fren have done mod like this, how about performance and whp? Sorry laa, I still nubis...

if u wish to keep the stock engine then there are limited potential.

change the engine then u will have a lot more toys to play with.

me,i will find a weber carb(keep it ol skool),extractor,mild cam,crank pulley.
enouhh to surprise some punk..hehehe.

if i go for turbo i am afraid i wont libe long enouhh.

 

[RENESIS VIII]

some cheap one do crack easily.
most expensive type are thicker.still,thinner than oem as to reduce cost.

on the heat issue,that is why they invent thermal wrap.

---------- Post added at 07:20 PM ---------- 6 hour anti-bump limit - Previous post was at 07:16 PM ----------



if u wish to keep the stock engine then there are limited potential.

change the engine then u will have a lot more toys to play with.

me,i will find a weber carb(keep it ol skool),extractor,mild cam,crank pulley.
enouhh to surprise some punk..hehehe.

if i go for turbo i am afraid i wont libe long enouhh.

The shop that I ask for 4-2-1 was quoting me at RM140 including installation. Full piping costs 400 plus. That doesn't seem too convincing.

Thermal wrap are those white coloured wrap? Or those aluminium foil type?

 

[vr2turbo]

Since everyone is talking about 4G15 mod, today a mechanic told me some of the downsides of modding 4-2-1 extractor. According to him, the absence of heat shield for extractor will increase the temperature of my engine bay which might melt or damage the plastic fan infront of the extractor. Another point is, he says these aftermarket extractors have a thinner piping wall compared to stock which he says probability of it cracking is higher. True?

OEM exhaust are made of cast iron and are heavy. Extractors are made of piping bent and welded. The possibility of crack are the welded parts but so far good brand have survived a pretty long time.
To me those heat shield are more for protection from touching the hot exhaust as the engine compartment is still hot, with or without the heat shield. In my previous time owning a wira for years with extractor fitted have not seen a fan melted before. In fact the fan blowing air cools the extractor....hahaha

 

[gunnerzz]

The shop that I ask for 4-2-1 was quoting me at RM140 including installation. Full piping costs 400 plus. That doesn't seem too convincing.

Thermal wrap are those white coloured wrap? Or those aluminium foil type?

thats the so called white steel type.the cheapest and the most prone to rust.

thermal wrap is the white colour wrap.i nearly wrap my dad 4-2-1 on the pajero but since the extractor is on the side.nothing is in harms way

 

[RENESIS VIII]

OEM exhaust are made of cast iron and are heavy. Extractors are made of piping bent and welded. The possibility of crack are the welded parts but so far good brand have survived a pretty long time.
To me those heat shield are more for protection from touching the hot exhaust as the engine compartment is still hot, with or without the heat shield. In my previous time owning a wira for years with extractor fitted have not seen a fan melted before. In fact the fan blowing air cools the extractor....hahaha

Yeap, mechanic did mention OEM exhaust are thicker and had a smaller inner diameter which is restrictive. Good brands are those like Zenden, Powerzone, Hotbits?

Alright, I'll probably ignore the fan part first and try to source for a better extractor.

thats the so called white steel type.the cheapest and the most prone to rust.

thermal wrap is the white colour wrap.i nearly wrap my dad 4-2-1 on the pajero but since the extractor is on the side.nothing is in harms way

Yes, that is what the exhaust shop fellow told me. I ask is it stainless steel he said no, white steel. He even quoted the price for mid bullet at RM80. That din't sound so right to me.

It isn't expensive to do thermal wrap right?

 

[vr2turbo]

Yeap, mechanic did mention OEM exhaust are thicker and had a smaller inner diameter which is restrictive. Good brands are those like Zenden, Powerzone, Hotbits?

Alright, I'll probably ignore the fan part first and try to source for a better extractor.



Yes, that is what the exhaust shop fellow told me. I ask is it stainless steel he said no, white steel. He even quoted the price for mid bullet at RM80. That din't sound so right to me.

It isn't expensive to do thermal wrap right?

Stainless steel expensive mah! Better off with chrome ones but it will discolor with heat....:rolleyes:

 

[RENESIS VIII]

Stainless steel expensive mah! Better off with chrome ones but it will discolor with heat....:rolleyes:

I thought chrome ones are stainless steel.

 

[Izso]

Since everyone is talking about 4G15 mod, today a mechanic told me some of the downsides of modding 4-2-1 extractor. According to him, the absence of heat shield for extractor will increase the temperature of my engine bay which might melt or damage the plastic fan infront of the extractor. Another point is, he says these aftermarket extractors have a thinner piping wall compared to stock which he says probability of it cracking is higher. True?

Sigh. Are we on this topic again? Heat melting plastic inside the engine bay? Nah. 10 years of owning the Wira, changed fan motor twice only and only because the carbon thinned out and the other time the motor jammed up. The OEM fan plastic material is incredibly tough.

Piping is thinner perhaps. But what is wrong with that? It's prone to cracking only if exposed to extreme hot/cold temperatures. Like those with vented hoods that vent directly at the extractor. Driving hard and hot then suddenly it rains. Super hot metal pipes suddenly cooled by rain water - THEN it'll be likely to crack.

Having said that, there are some poor quality pipings/extractors that have poor welds or poor quality steel. Those might wear off faster than others. I used white steel from Everco and I replaced the entire system. No heat shield and no wrap. I didn't want to wrap because my entire exhaust was welded together without any flanges so to remove the exhaust was a lot of effort.

And there are generally two types of exhaust wraps - fiberglass (white coloured) and titanium cloth wraps. I had a titanium cloth wrap which was very easy to work with since it doesn't disturb the hand. Fiberglass is a bitch to work with - you need gloves and don't let it touch the skin at all otherwise it'll be itch galore.

The shop that I ask for 4-2-1 was quoting me at RM140 including installation. Full piping costs 400 plus. That doesn't seem too convincing.

Thermal wrap are those white coloured wrap? Or those aluminium foil type?

That's very cheap. very very very very cheap