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Now that i am building my new engine to go turbo i am planning to polish a lot of stuff. Firstly i am planning to do the timing chain cover, intake manifold and the valve cover. After i will do all the intercooler pipes of the turbo kit.
I have read somewhere that polishing does have effect on cooling temperatures. Is this true? And is it so much as to be significant?
I have a friend who has polish almost everything in his turbo S2000. His engine is so sweet, probably the best looking S2000 engine i have seen so far. Althought his car is close to 800whp it does not have at all high engine bay temperatures so he is trying to persuade me to do mine too
With all the aluminum I also took the polishing route.
When I polished the head I decided to just do the front part that shows.
The Valve cover is straight forward.
The intake manifold is quite different. It presented chances to remove large amounts of aluminum. Fitting the larger throttle body was done at the same time.
After I polished the intake manifold and took some weight off of it I had it coated with a cold ceramic coating.
The pan was fun.
I did the diff and tranny too.
Fuel rail was easy.
TC cover
The wheels took forever to finish.
It is not a turbocharged F20c but it is a higher horsepower supercharged F20c and it has never shown any tendencies to get hot. It actually runs cool.
There are several other parts that I have polished too. Have fun, you have plenty of work ahead.
Originally Posted by Sideways,Jan 22 2010, 10:02 AM
With all the aluminum I also took the polishing route.
When I polished the head I decided to just do the front part that shows.
The Valve cover is straight forward.
The intake manifold is quite different. It presented chances to remove large amounts of aluminum. Fitting the larger throttle body was done at the same time.
After I polished the intake manifold and took some weight off of it I had it coated with a cold ceramic coating.
that is sooo hot. I will be the first to admit that I feel a car that is fast should look good. Even though it doesnt mean ish in the end, I still want my cars to be shiny and blinged out.
Originally Posted by s2000442,Jan 22 2010, 10:39 AM
What turbo kit is that? Looks very nice.
Everything is custom made. Even the intake manifold. I will get a better picture to saw you when i see him again. Everything that was left in the engine bay (not a lot cause he is dragracing the car ) is polished . He doesn't have temperature problems at all, but on the other hand the engine is cooled down by multiple airways. Pay attention to the drivers headlight set up
Smooth surfaces actually decrease the heat transfer convection coefficent, because they promote laminar flow. Laminar flow has a larger boundry layer formation and is therfore less effective at transfering heat. However since the car is watercooled the affect of this will be neglible. The majority of the engines heat leaves through the radiator.
Polishing stuff-effect on cooling
Why did you do the cold ceramic coating in the intake manifold?
that is sooo hot. I will be the first to admit that I feel a car that is fast should look good. Even though it doesnt mean ish in the end, I still want my cars to be shiny and blinged out.
) is polished . He doesn't have temperature problems at all, but on the other hand the engine is cooled down by multiple airways. Pay attention to the drivers headlight set up 
