3" Downpipe with BEGI/FMII?
#8
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I agree 100%. I run 4" on my Turbo Civic and used to run 3" on my old Miata with a custom ETD manifold. However the BEGI/FM manifold makes the turbo sits high and therefore it looks very tight to fit a 3" downpipe.
#16
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I think I might try and form a downpipe for my car which will fit. Kinda like they do on Orange Country Choppers when they build Gastanks. We shall see. I really want 3" versus a 2.5" to 3"
#17
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just dont do a 3" pipe connected to the outlet flange without some transition. you'll get stagnation and flow eddys.
my dream downpipe (if it would fit) would be about 6" of transition exactly matching the turbine outlet to 3 inches and then 3" the rest of the way. I think Paul's is very close to that.
my dream downpipe (if it would fit) would be about 6" of transition exactly matching the turbine outlet to 3 inches and then 3" the rest of the way. I think Paul's is very close to that.
#18
just dont do a 3" pipe connected to the outlet flange without some transition. you'll get stagnation and flow eddys.
my dream downpipe (if it would fit) would be about 6" of transition exactly matching the turbine outlet to 3 inches and then 3" the rest of the way. I think Paul's is very close to that.
my dream downpipe (if it would fit) would be about 6" of transition exactly matching the turbine outlet to 3 inches and then 3" the rest of the way. I think Paul's is very close to that.
Works fine and spools nicely on both cars.
I just believe firmly in providing as much space as possible for expansion after the turbine wheel as quickly as possible. A continuation of the "the best turbo exhaust is no exhaust" theory.
#20
Yes there is an exhaust... but the idea still applies in a sense.
Regardless... I've used it on my last 2 setups without issue. Pieces to flare just waste space to me.