RPi GT Exhaust 535i + 25ft/lbs&10whp
04-14-2009, 03:43 PM
#21
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Originally Posted by myfootsmells' post='847399' date='Apr 14 2009, 04:31 PM
Gene... DO IT!
, I told myself (and you) no more mods 
...but VERY interested in the results of the PC tune on a 535i 
BTT: the RPI exhaust
04-14-2009, 06:47 PM
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My Ride: 08 535i, black sapphire, natural brown, anthracite, sport, premium, sport auto, comfort, cold weather, logic 7, ipod, HD radio
Awesome results 
thanks to RPi and dbae1978 for their efforts... looks like we finally have a viable exhaust option for the 535i! Just curious, the dyno sheet that was posted showed lower hp and torque at high rpm's, which I'm assuming is heat soak given the 20+ pulls that you all did... wondering, however, if the first couple of pulls showed the same increase at high rpm's that we see throughout the rest of the powerband. Thanks!
thanks to RPi and dbae1978 for their efforts... looks like we finally have a viable exhaust option for the 535i! Just curious, the dyno sheet that was posted showed lower hp and torque at high rpm's, which I'm assuming is heat soak given the 20+ pulls that you all did... wondering, however, if the first couple of pulls showed the same increase at high rpm's that we see throughout the rest of the powerband. Thanks!
04-14-2009, 06:52 PM
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Originally Posted by bkswede' post='847535' date='Apr 14 2009, 07:47 PM
Awesome results
thanks to RPi and dbae1978 for their efforts... looks like we finally have a viable exhaust option for the 535i! Just curious, the dyno sheet that was posted showed lower hp and torque at high rpm's, which I'm assuming is heat soak given the 20+ pulls that you all did... wondering, however, if the first couple of pulls showed the same increase at high rpm's that we see throughout the rest of the powerband. Thanks!
thanks to RPi and dbae1978 for their efforts... looks like we finally have a viable exhaust option for the 535i! Just curious, the dyno sheet that was posted showed lower hp and torque at high rpm's, which I'm assuming is heat soak given the 20+ pulls that you all did... wondering, however, if the first couple of pulls showed the same increase at high rpm's that we see throughout the rest of the powerband. Thanks!
all the dyno results had similar results and very consistant. All dyno pulls are always measured from 4th gear, hence the higher rpms.
04-14-2009, 08:20 PM
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My Ride: 2007 E63 AMG | Obsidian Black | Schwarzes Nappa | Black BirdEye Maple | Premium II Package | Electronic Trunk Closer | Parktronic
Engine: RPi/Powerchips custom ECU tune, RPi Ram Air Kit (BMC filter, scoops), RennTech Sport exhaust, secondary cats, charcoal and resonator delete, custom AAA x-pipe
Exterior: 50% side windows / 35% rear window Formula One Pinnacle Series | Flat AMG hood emblem
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-----------------------------------------
2005 545i Sport SMG | Ti Grau | Schwarzes Dakota | Anthracite Maple | Logic 7 | Nav
Engine: Custom AFE CAI, Superchips ECU remap, Sprint Booster, RDSport Dual Exhaust Conversion with Quad Pipes and X-pipe, 3 resonators deleted, 90mm tips!
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ED Date: 4/7/05, Re-delivery date: 5/21/05
We want some outside drive by vids! 