GT3 6.2 on Rolling Road,
Discussion
sportsandclassic said:
rallyeman said:
Has a Cone K&N, standard exhaust I think, but the resonance flap , has changed to stay open at all times
Why... This is vital to the engines torque and power characteristics... .? The pink/purple line is with my DB killers on the end of my exhaust. The blue line is without!
Drops quite a lot in midrange. Car is running full car graphic system and IPD with 997GT3 throttle body. Standard map.
The green line is an overlay of a modified RS car.
Edited by sportsandclassic on Friday 3rd January 20:38
sportsandclassic said:
Not sure, get the air filter taken off and put back to stock and get someone to check the resonance flap valve is working correctly.
The slightest modification to cats / intake or exhaust can have effects on the power and torque curve.
Does this sound right then? That the resonance flaps, have been permantly opened for better exhaust sound, all the time? The slightest modification to cats / intake or exhaust can have effects on the power and torque curve.
rallyeman said:
sportsandclassic said:
Not sure, get the air filter taken off and put back to stock and get someone to check the resonance flap valve is working correctly.
The slightest modification to cats / intake or exhaust can have effects on the power and torque curve.
Does this sound right then? That the resonance flaps, have been permantly opened for better exhaust sound, all the time? The slightest modification to cats / intake or exhaust can have effects on the power and torque curve.
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