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Old 11-20-2012, 10:52 AM
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ShakeDaddy ShakeDaddy is offline
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Location: Scottsdale, Arizona
Join Date: Jun 2012
Posts: 1,070
Mein Auto: 2013 650i Coupe
Originally Posted by Bönz View Post
Notice also that Dinan's torque increase is about 22% (450 to 550) and there's no peak torque difference between stage 2 and stage 3. Engines produce torque - HP is calculated as a function of torque and RPM. Clearly the exhaust change effects the torque curve, peak output, which makes sense on a turbochaged engine. This also explains the higher increase in peak HP (versus torque) as it all has to do with the torque curve.
Great infomation. Bonz I believe Dinan's quoting a 580 TQ @ 3500rpm for the Stage 2 that calculates to a 29% (450 to 580) increase.
2013 N63TU 650i Coupe
Ordered 6/12*Delivered 10/12
Imola/Opal White
M Sport with Merino Individual Leather
BMS JB+ Stage 1 Set@8 96 Octane
VR Power Pedal
Dinan Shockware
20” 373 Wheels
Hankook Ventus V12 Evo2 Summer
M6 Spoiler
Custom Diffuser
Full LED Lighting
Ceramic Controls
Piano Black Trim

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