4g13 talks

[gunnerzz]

mine 20 years at 160k km...
no issue with the rings and valve... touch wood.... choi... choi...

20years and only 160k km?
Thats considered just run-in.
Maybe even the cylinder honing mark is still there...hahahaha.

 

[minibeany]

20years and only 160k km?
Thats considered just run-in.
Maybe even the cylinder honing mark is still there...hahahaha.

that's why still in the garage... local saying... "jual tak kaya, simpan tak rugi"
body still has the original sticker

 

[minibeany]

Admit it lah. You are hoping for an something to happen. Then got excuse to drop in a GSRT into it

 

[sweelt]

so big ...very big face

 

[parakey]

Learn from the CAT above . He didnt wait for engine to konk, to go on turbo route. That's one hard core dude

 

[Latebloomer]

Btw guys.. is it worth if i were to change my injector to higher cc on stock engine?

 

[vr2turbo]

Valve seats sorry. Basically incomplete combustion busting out.


Personally I'd fix it. This kinda thing usually means overhaul. Piston rings and valve seats

I thought valve seats usually smokes when idling. One of my previous car had that, but normal driving no smoke, only at idling.....

 

[parakey]

I thought valve seats usually smokes when idling. One of my previous car had that, but normal driving no smoke, only at idling.....

During high vacuum situations like idle, cold start and engine braking, engine oil gets suck from the cylinder head into the combustion chamber.

 

[lsm1991]

Btw guys.. is it worth if i were to change my injector to higher cc on stock engine?

what do you think will happen... keep things simple. imagine just dumping more fuel in there, whats the expected result... remember just dumping fuel and nothing else into the combustion chamber

 

[Izso]

what do you think will happen... keep things simple. imagine just dumping more fuel in there, whats the expected result... remember just dumping fuel and nothing else into the combustion chamber

larger injectors won't shoot more fuel in la. It's just underutilizing the injectors. Not a great thing either

 

[parakey]

larger injectors won't shoot more fuel in la. It's just underutilizing the injectors. Not a great thing either

Large injectors and stock ecu?

 

[lsm1991]

larger injectors won't shoot more fuel in la. It's just underutilizing the injectors. Not a great thing either

ehh it will let more fuel in kan...

 

[Izso]

ehh it will let more fuel in kan...

Let me clarify. The stock injector duty cycle is usually 80%. So say you're using 150cc stock injectors, then you're shooting about 80% in super simple terms.

If you plonk in 500cc injectors it'll be running the default duty cycle of 80% unless you tune it otherwise. So you're shooting 80% of the 500cc inejectors. But that's also assuming your fuel pump can cope with the extra load. If fuel pump is insufficient and injectors not running at it's preset duty cycle, I think something is going to fail pretty quickly.

 

[Latebloomer]

Let me clarify. The stock injector duty cycle is usually 80%. So say you're using 150cc stock injectors, then you're shooting about 80% in super simple terms.

If you plonk in 500cc injectors it'll be running the default duty cycle of 80% unless you tune it otherwise. So you're shooting 80% of the 500cc inejectors. But that's also assuming your fuel pump can cope with the extra load. If fuel pump is insufficient and injectors not running at it's preset duty cycle, I think something is going to fail pretty quickly.

So thats mean Ecu come first then larger injector plonk later on?

 

[Izso]

So thats mean Ecu come first then larger injector plonk later on?

Probably fix the smoke first.....