Rm8k Wira & Jazz GK5 ownership experience-A long way to go

[leinnz]

The boss also dun suggest me to paint it. So I might as well wrap it.
Now still consider what colout do I choose.
6d carbon
Satin dark grey
Any suggestions guys?hahahahaha

white color hood with black body.

 

[Izso]

After the wrap the exterior part is all done.

I have some plan for the car in the future. The plan are

-Mild camshaft 275 (not going to high cam
-lightweight crank pulley
-Adjustable cam ( can I juz use back the stock cam pulley if I change the camshaft?
-wira 1.6/1.8 full set brake & gsr full set (the evo brake pump still inside my house haven't use .ahahahahaha
-Short shifter
-Better tyre, either Re003 or advan fleva
-stainless steel extractor with heat wrap?

I also found some issue regarding the cam. When I ask the seller,he told me that 4g15 vdo camshaft is a little bit shorter compare to a 4g15 cab type and I need to add some washer at the coil pack area. I was like won't it effect the durability?

Don't bother with the lightweight crank pulley la. First of all there's almost no performance gain to changing to one. Secondly I guarantee you headaches afterwards after about a year or two of usage especially if it doesn't have a harmonic dampener built in. Thirdly it's damn freaking impossible to find a 4G15 VDO aftermarket crank pulley.

As for the camshaft - I think you're looking at the wrong type of camshaft or your seller is trying to con you. Have a look at my old car and it's installation. No shims or washers.

http://www.zerotohundred.com/forums/index.php?threads/basic-camshaft-installation-guide.390887/

I'd say go elsewhere to get the camshaft installed. And with a camshaft you need the adjustable crank pulley. Don't get the Works one unless the guy who installs it for you knows how to do it properly because the markings for Works cam pulleys are all wrong. Bloody thing moves too.

If you're gonna do camshaft forget about the crankpulley and all. Go for a standalone ECU with a proper harness. You can keep this ECU for future cars and transfer over to your potential next racecar or something. Piggybacks you only have 2 options and one of the options is already dead in the market. So that just leaves you with Unichip and for the price you pay there you might as well top it up a bit more for absolute control (standalone ECU). Piggybacks can only do so much.

 

[KHNG940413]

Don't bother with the lightweight crank pulley la. First of all there's almost no performance gain to changing to one. Secondly I guarantee you headaches afterwards after about a year or two of usage especially if it doesn't have a harmonic dampener built in. Thirdly it's damn freaking impossible to find a 4G15 VDO aftermarket crank pulley.

As for the camshaft - I think you're looking at the wrong type of camshaft or your seller is trying to con you. Have a look at my old car and it's installation. No shims or washers.

http://www.zerotohundred.com/forums/index.php?threads/basic-camshaft-installation-guide.390887/

I'd say go elsewhere to get the camshaft installed. And with a camshaft you need the adjustable crank pulley. Don't get the Works one unless the guy who installs it for you knows how to do it properly because the markings for Works cam pulleys are all wrong. Bloody thing moves too.

If you're gonna do camshaft forget about the crankpulley and all. Go for a standalone ECU with a proper harness. You can keep this ECU for future cars and transfer over to your potential next racecar or something. Piggybacks you only have 2 options and one of the options is already dead in the market. So that just leaves you with Unichip and for the price you pay there you might as well top it up a bit more for absolute control (standalone ECU). Piggybacks can only do so much.

The one I see is this

https://shopee.com.my/4G15-4G13-272...SATRIA)-CARBURATOR-EFI-i.232168134.5918377474

other then that I think all are 280 & 288 degree.

Crank pulley
https://shopee.com.my/Saga-12V-Wira...k-Pulley-T6061-Aluminium-i.17868449.250999330

After what you say and I think throught. In JB here I don't have a mechanic that is really skilled in doing this kind of mods.
If there is the case I think I might juz give up on this and changing the extractor since is kinda rusty .Hahahaha

 

[KHNG940413]

Wira uodate

Another thing I juz found out. The exhaust is 2.5 inch. Is this normal for 1.5 wira? Or is it too big?

 

[vr2turbo]

Wira uodate

Another thing I juz found out. The exhaust is 2.5 inch. Is this normal for 1.5 wira? Or is it too big?

2.5" all the way? That is huge. My VR 2.0L turbo using 2.5" only......

 

[Izso]

The one I see is this

https://shopee.com.my/4G15-4G13-272...SATRIA)-CARBURATOR-EFI-i.232168134.5918377474

other then that I think all are 280 & 288 degree.

Got a lot la. Find out if it's a billet or regrind cam. Always opt for Billet. Last time I installed the 260/280 Pipercams on my car and that's a pretty mild cam. Slightly broadened the power band and with the adjustable cam pulley I could shift the powerband higher or lower. The beauty of SOHC and self adapting ECUs. I don't know if they had any other variant of Siemens VDOs though. I still recommend you go for a stand-alone.

Powerzone I recall are regrind cams which means they take the stock cam and grind them to their specs. Billet cams are built out of one piece to make the cams. Personally if you need to add washer or whatever I wouldn't take the cam. Mine were direct plug and play.

Crank pulley
https://shopee.com.my/Saga-12V-Wira...k-Pulley-T6061-Aluminium-i.17868449.250999330

After what you say and I think throught. In JB here I don't have a mechanic that is really skilled in doing this kind of mods.
If there is the case I think I might juz give up on this and changing the extractor since is kinda rusty .Hahahaha

The crank pulley you are looking at is wrong la.

This is the crank pulley you wanna buy :

This is the Siemens VDO stock pulley :

Do you notice anything different?

YES. The Siemens VDO pulley has an additional gear attached to the back of the pulley for the crank angle sensor which the Mitsubishi 4G15 doesn't have. The one you wanted to buy was the MMC crank pulley.

Also this is what a proper lightened crank pulley should look like. This is from a good brand Fluidampr which is kinda expensive :

It has a dampening layer which absorbs the shock and vibrations that the pulley is subjected to. The middle sleeve needs to be reinforced too if you don't have some sort of harmonic damper, otherwise the shape of the middle hole will deform and you'll see problems 2-3 years down the road depending on how you drive. Wobbly pulleys are a thing.

If you look at the now defunct mythelogy brand, right in the center the hole is reinforced with a steel sleeve, the rest is lightweight alu and there's a rubber dampener there that supposedly absorbs some of the vibration. There's a lot of debate as to whether it really works or not for Mythelogy pulleys but personally I've changed so many pulleys in my old Wira it's not even funny.

Wira uodate

Another thing I juz found out. The exhaust is 2.5 inch. Is this normal for 1.5 wira? Or is it too big?

Where is your exhaust 2.5" ? The tip or the piping diameter? 2.5 is a little large and personally I feel 2" is ideal but 2.5" isn't going to ruin anything as long as it's straight flow and your extractor is good. Personally I recommend a 4-2-1 setup for a wira manual. The original Wira SE extractor was actually a well built extractor but you'll be hard pressed to find a good condition one at this time so if you do get an extractor consider a properly tuned one not just any extractor off Shopee or Lazada unless you know what you're looking for.

 

[KHNG940413]

2.5" all the way? That is huge. My VR 2.0L turbo using 2.5" only......

I just measure the rear part. front part tomorrow I will go and measure again. But from what I see the full exhaust is just 2 part only.

1st part the extractor until the 02 sensor part belakang abit
2nd part front link to the extractor the direct back to the muffler

 

[KHNG940413]

Got a lot la. Find out if it's a billet or regrind cam. Always opt for Billet. Last time I installed the 260/280 Pipercams on my car and that's a pretty mild cam. Slightly broadened the power band and with the adjustable cam pulley I could shift the powerband higher or lower. The beauty of SOHC and self adapting ECUs. I don't know if they had any other variant of Siemens VDOs though. I still recommend you go for a stand-alone.

Powerzone I recall are regrind cams which means they take the stock cam and grind them to their specs. Billet cams are built out of one piece to make the cams. Personally if you need to add washer or whatever I wouldn't take the cam. Mine were direct plug and play.


The crank pulley you are looking at is wrong la.

This is the crank pulley you wanna buy :

This is the Siemens VDO stock pulley :

Do you notice anything different?

YES. The Siemens VDO pulley has an additional gear attached to the back of the pulley for the crank angle sensor which the Mitsubishi 4G15 doesn't have. The one you wanted to buy was the MMC crank pulley.

Also this is what a proper lightened crank pulley should look like. This is from a good brand Fluidampr which is kinda expensive :

It has a dampening layer which absorbs the shock and vibrations that the pulley is subjected to. The middle sleeve needs to be reinforced too if you don't have some sort of harmonic damper, otherwise the shape of the middle hole will deform and you'll see problems 2-3 years down the road depending on how you drive. Wobbly pulleys are a thing.

If you look at the now defunct mythelogy brand, right in the center the hole is reinforced with a steel sleeve, the rest is lightweight alu and there's a rubber dampener there that supposedly absorbs some of the vibration. There's a lot of debate as to whether it really works or not for Mythelogy pulleys but personally I've changed so many pulleys in my old Wira it's not even funny.



Where is your exhaust 2.5" ? The tip or the piping diameter? 2.5 is a little large and personally I feel 2" is ideal but 2.5" isn't going to ruin anything as long as it's straight flow and your extractor is good. Personally I recommend a 4-2-1 setup for a wira manual. The original Wira SE extractor was actually a well built extractor but you'll be hard pressed to find a good condition one at this time so if you do get an extractor consider a properly tuned one not just any extractor off Shopee or Lazada unless you know what you're looking for.

The piping size is 2.5 for what I measure. I also feel a little bit big for the engine.
For the crank pulley part what i know is there is a gear shape thing need to attach to the crank pulley is not same as mmc.
I thought the link I put is also the same as the one you put.Hahahahaha

 

[vr2turbo]

I just measure the rear part. front part tomorrow I will go and measure again. But from what I see the full exhaust is just 2 part only.

1st part the extractor until the 02 sensor part belakang abit
2nd part front link to the extractor the direct back to the muffler

If rear end or tip then it is okay. Measure the middle part.....

 

[vr2turbo]

It has a dampening layer which absorbs the shock and vibrations that the pulley is subjected to. The middle sleeve needs to be reinforced too if you don't have some sort of harmonic damper, otherwise the shape of the middle hole will deform and you'll see problems 2-3 years down the road depending on how you drive. Wobbly pulleys are a thing.

My original one actually came apart from dampening layer. My mechanic got me a full new machined piece with no layer and not lighten, is solid metal.......lol

 

[sanekit]

After what you say and I think throught. In JB here I don't have a mechanic that is really skilled in doing this kind of mods.
If there is the case I think I might juz give up on this and changing the extractor since is kinda rusty .Hahahaha

should have.. u need to go join those wira clubs on fb group. i'm sure the members there can guide you and recommend best workshop in JB.

 

[Izso]

I just measure the rear part. front part tomorrow I will go and measure again. But from what I see the full exhaust is just 2 part only.

1st part the extractor until the 02 sensor part belakang abit
2nd part front link to the extractor the direct back to the muffler

take pics and tell how where u measure la. It sounded like you measured the tip of the exhaust saja. If you did then 2.5" is not abnormal at all.

My original one actually came apart from dampening layer. My mechanic got me a full new machined piece with no layer and not lighten, is solid metal.......lol

Considering how old your car is - expected la. I wouldn't have gone for a solid metal one though, so much rotational mass. I dunno la... crank pulleys harmonics are mysterious magic that I don't understand.

 

[TitanRev]

The piping size is 2.5 for what I measure. I also feel a little bit big for the engine.
For the crank pulley part what i know is there is a gear shape thing need to attach to the crank pulley is not same as mmc.
I thought the link I put is also the same as the one you put.Hahahahaha

I think the 2.5 inch is the outer diameter of the piping. Then inner will be less than 2.5inch. It depends on the wall thickness always measure inner bore for more accuracy if cannot then you measure the OD then wall thickness then you get the ID because your exhaust flows inside the tube not outside. I have came across 2.5 inch piping on OD and ID only 2 inch.

 

[Izso]

I think the 2.5 inch is the outer diameter of the piping. Then inner will be less than 2.5inch. It depends on the wall thickness always measure inner bore for more accuracy if cannot then you measure the OD then wall thickness then you get the ID because your exhaust flows inside the tube not outside. I have came across 2.5 inch piping on OD and ID only 2 inch.

that is a seriously thick exhaust. Half an inch thick

 

[vr2turbo]

that is a seriously thick exhaust. Half an inch thick

Yah, was about to say same thing, cannot be so thick .....lol

 

[KHNG940413]

I think the 2.5 inch is the outer diameter of the piping. Then inner will be less than 2.5inch. It depends on the wall thickness always measure inner bore for more accuracy if cannot then you measure the OD then wall thickness then you get the ID because your exhaust flows inside the tube not outside. I have came across 2.5 inch piping on OD and ID only 2 inch.

you can see back the pic I post. I think I am wrong. Outer diameter is around 4cm. So convert into inch is around 1.6 inch outer diameter.
My colleage told me is 2.5 inch and I didn't go and figure out myself.Hahahahaha My bad

 

[vr2turbo]

you can see back the pic I post. I think I am wrong. Outer diameter is around 4cm. So convert into inch is around 1.6 inch outer diameter.
My colleage told me is 2.5 inch and I didn't go and figure out myself.Hahahahaha My bad

1.6" then is normal loh.......hahaha

 

[parakey]

you can see back the pic I post. I think I am wrong. Outer diameter is around 4cm. So convert into inch is around 1.6 inch outer diameter.
My colleage told me is 2.5 inch and I didn't go and figure out myself.Hahahahaha My bad

Guess you need to teach him how to use a vernier caliper

 

[KHNG940413]

Guess you need to teach him how to use a vernier caliper

He terus use his mind to convert,I use google to hlp me convert.Hahahahahaha

 

[parakey]

He terus use his mind to convert,I use google to hlp me convert.Hahahahahaha

Convert? No need. It's listed there on the caliper as 1.75 inches