xxNocturnalxx
10+ Year Contributor
- 698
- 12
- Nov 5, 2011
-
Tacomptan,
Washington
Then one's not a 20G, it's a Hahn Super 16G....unless someone machined the smaller cover for a 20G wheel.
So I took both comp covers off of the turbos and compared the wheels, they are exactly the same dimensions. So it seems Hanh may have used 2 different types of covers, the smaller looking cover is much deeper but smaller in diameter, the bigger looking one is a large diameter but smaller width/depth. It seems to me Hanh did this for fitment issues so we don't have to do things such as dent the water pipe for comp housing. The smaller deeper housing is ideal for fitment and seems to support the same air volume for no loss in efficiency.
Super 16gs can have these different combos as well, it seems to be 3 total. J pipe bolt on and the 2 I just mentioned.
Of course the covers are not interchangeable but can make it confusing when trying to figure out what you have based off a quick glance.