Quote:
Originally Posted by KRAM36
This is making me rethink the removal of the Helmholtz chamber. I'm not sure if I'll have the room to leave it on though. You know how tight it is in there when adding the 997 Distribution T. Tomorrow I start the tear down process. Once I get the 987 air box in, knock sensors, starter replaced, 997 Distribution T and 996 76mm TB installed I'll see what I can figure out.
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Keep in mind my experiences are with the stock 986 air box. There are quite a few who have lopped the helmholtz chamber on their 987 box ( you have no choice in order to get it in) and seem to getting great results.....even big bores.
The 987 is a lot of work to end up getting bad throttle response....so didn't do it. There are many that now have reported good stuff....I would like some data but hey..