My Rendition of a Cross Flow Exhaust
Hey Tim,You and I have always been on the same page about our thoughts on the exhaust steams of each bank coming together and hitting each other..What were your thoughts on the Protomotive X?
But I do think the EB design is the best design out there in that X type .
I guess most people are more so into the sound aspect ??
But I do think the EB design is the best design out there in that X type .
I guess most people are more so into the sound aspect ??

...just sayin
Last edited by earl3; Jul 2, 2012 at 07:27 PM.
love the pic Earl !
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#TeamAIM
997TT SilverSpool - 210.8 mph 1/2 Mile WR Apr 2019, 9.2 @ 168 mph 1/4 Mile Manual World Record , 3.15 60-130 mph , 2.72 100-150 mph , 1400whp E85
996TT SpoolBus - 204.6 mph 1/2 Mile 996TT WR Aug 2018, 9.5 @ 154 mph, 3.23 60-130 mph, 2.5 100-150 mph Manual Porsche World Record, 1400whp E85
997TT SlowBerry - 205.0 mph 1/2 Mile WR Nov 2018, 9.7 @ 170 mph 1/4 Mile , 3.2 60-130 mph , 2.4 100-150 mph , 1420whp E85
ESMOTOR | DO88 | TPC DSC | SYVECS | COBB | IPD | KLINE | XONA | AMS | ID | ERP | SACHS | TURBOSMART | CSF | DODSON |
#TeamAIM
997TT SilverSpool - 210.8 mph 1/2 Mile WR Apr 2019, 9.2 @ 168 mph 1/4 Mile Manual World Record , 3.15 60-130 mph , 2.72 100-150 mph , 1400whp E85
996TT SpoolBus - 204.6 mph 1/2 Mile 996TT WR Aug 2018, 9.5 @ 154 mph, 3.23 60-130 mph, 2.5 100-150 mph Manual Porsche World Record, 1400whp E85
997TT SlowBerry - 205.0 mph 1/2 Mile WR Nov 2018, 9.7 @ 170 mph 1/4 Mile , 3.2 60-130 mph , 2.4 100-150 mph , 1420whp E85
ESMOTOR | DO88 | TPC DSC | SYVECS | COBB | IPD | KLINE | XONA | AMS | ID | ERP | SACHS | TURBOSMART | CSF | DODSON |
You can add me to that list. A crossflow x-pipe post-turbine is nonsense from a flow standpoint (and I wouldn't call Tim's creation here a crossflow design). The reason they're quieter is because you're losing exhaust energy when you slam the banks into each other and force the flow around an extremely tight cheater bend -this has inherent sound damping. I understand sound is important, by why do so few manufacturers post backpressure at the turbine exit to isolate what the exhaust is actually doing?

...just sayin

...just sayin

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