Quote:
Originally Posted by Piwoslaw
Yes, and the top and bottom also. Basically you want a duct from the grille to the radiator, so if any air comes in through the grille, it won't go around the rad.
|
Yes, exactly that,
I don't think this point is highlighted often enough with the grille block mod.
If you reduce inlet hole (grill area), but you have gaping holes behind the grille that allow air to bypass the radiator, then the most likely outcome is that you will not see any gains and will probably have overheating issues.
The aim as said is to create a duct with one inlet, the reduced grille area and one outlet, the radiator outlet, so that all air passing through is used for cooling, and it is surprising how little air is actually required when this is done well.