Hahn MS or 122 performance O2 housing?

[definitiveno]

Wich downpipe for my gt30r? I understand the exducer on my turbo will be 55mm or 2.2 inches. From looking at the hahn housing the dump is routed in immediatly, pressurizing almost the full leangth of the 3 inch pipe with exhaust. A little bit of turbulance but nice re-entry.


the 122 is only a 2.5 but it dumps right at the flange, once through the flange I can slowly bring the downpipe out to 3 inch. I think I read that the O2 should match as closely as possible to the exducer but I wasn't sure if the same principles applied with internal dump. Wouldn't the exducer and wastegate port have to be calculated?


Where you at Nick, come set me straight already....




What do you guys think?

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[Mindslayer]

122 performace was or is on curt Brown 9 sec AWD. I'll go with that. Andy knows what he is doing.

 

[anconover]

personal opinion, the welding on the 122's isnt so hot. Looks worse than my first attemps with a wirefeed back when. But it does do the job and are going on ebay pretty cheap.

 

[definitiveno]

I thought for sure nick would be in here in a hurry. It might not have been nick actually, one of you gsx characters (NDgsx or MNgsx) is always layin it down on the O2 housings......

"That shit wont flow" "reentry is terrible" "make your own"






What do you guys think about this. I guess the 122 is pretty decent from the first 2 posts, but from the looks of it..........

 

[definitiveno]

found another one made by ATR

Same design as the hahn...........

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[sp00ln]

Is there a website for this 122 Performance O2 housing or is it just on ebay?

 

[definitiveno]

www.122performance.com

 

[sp00ln]

Thank you sir.