u polished the wrong ports. Exhaust side is supposed to be polished, not intake to reduce carbon build up. You probably loss some power/ volumetric efficiency doing that because now u wont have any good turbulence/air-fuel mixture. Sand that down and make the intake rough and polish the exhaust. But i gotta say thats some nice ass polishing!!!
the reason you dont polish the intake side is it causes the air fuel mixture to seperate as the fuel clings to the polished wall. never finer than 80 grit on intake side. and bigger isnt always better without a flow bench your shooting in the dark. and turbulence is bad you want velocity and swirl polishing the top of the valves helps distribute the mixture better in the cylinder its very beneficial.
You can not just say, not to polish. It all depends on the setup, and if it is with boosting or not. Where is the injectors located etc....You need to have a look at the time/distance from the injector to the valve, under full boost. If you have a distance more then 10 cm, you might not high polish. Less then that, the time it takes the air/fuel mix to get in to the combustion chamber from the injector is equal to les then 0,01 sec under full boost. The best mix you have is just 3 cm from the injector, just get that mix in to the chamber. Some setups are not the same, witch could be different.
how do you get better gasoline mixture when you polish intakes ? what i have readed about porting intakes gasoline need slight bumbs like sandpaper to mix better in the air. but ofcourse i may be weong. anyways porting work looks very sexy
From what iv researched you are correct. Im sure a slightly rough texture will make the are more turbulent and provide much better mixture/ignition etc. Maybe polishing works too?
+SimbaSoundPower its not turbulence that causes fuel mix that is done when its atomised leaving the injector. if you smooth polish the intake ports the smooth wall causes the fuel to seperate from the air fuel mix causing a less efficient burn and loss of power. never finer than 80 grit on the intake side.
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u polished the wrong ports. Exhaust side is supposed to be polished, not intake to reduce carbon build up. You probably loss some power/ volumetric efficiency doing that because now u wont have any good turbulence/air-fuel mixture. Sand that down and make the intake rough and polish the exhaust. But i gotta say thats some nice ass polishing!!!
the reason you dont polish the intake side is it causes the air fuel mixture to seperate as the fuel clings to the polished wall. never finer than 80 grit on intake side. and bigger isnt always better without a flow bench your shooting in the dark. and turbulence is bad you want velocity and swirl polishing the top of the valves helps distribute the mixture better in the cylinder its very beneficial.
You can not just say, not to polish. It all depends on the setup, and if it is with boosting or not. Where is the injectors located etc....You need to have a look at the time/distance from the injector to the valve, under full boost. If you have a distance more then 10 cm, you might not high polish. Less then that, the time it takes the air/fuel mix to get in to the combustion chamber from the injector is equal to les then 0,01 sec under full boost. The best mix you have is just 3 cm from the injector, just get that mix in to the chamber. Some setups are not the same, witch could be different.
Porting?
Ported!
Good job for m52 stroker, because It have bigger valve opening and optonal rpm
how many horse power will that give
it looks really good
That is a beautiful job!
how do you get better gasoline mixture when you polish intakes ?
what i have readed about porting intakes gasoline need slight bumbs like sandpaper to mix better in the air. but ofcourse i may be weong.
anyways porting work looks very sexy
From what iv researched you are correct. Im sure a slightly rough texture will make the are more turbulent and provide much better mixture/ignition etc. Maybe polishing works too?
+SimbaSoundPower its not turbulence that causes fuel mix that is done when its atomised leaving the injector. if you smooth polish the intake ports the smooth wall causes the fuel to seperate from the air fuel mix causing a less efficient burn and loss of power. never finer than 80 grit on the intake side.
how much did that cost ya? looks really well done, and was it flow bench tested?
Hey what's up bud, where was the work done?
Nice job!
Hey :) the work has been done in Georgia,Tetritskaro City. The whole work is done by 1 person and it's handmade ;)
Erekle Mamalashvili i
damn that is some nice work!! did you flow test it?
The best polish in the world of the worlds,fantastic¡¡
porting intake side ... well got to ask why :P shiny parts does not make horsepower.. knowledge do
ooops wrong side :=) dont polish intake !
This head m50b25
au gaumarjos, sad gaakete es zma mitxari ra an vin aketebs magas kacurad.