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02-25-2015, 11:48 PM | #1 |
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Will RPM/Speed relationships change with modding?
Got a theoretical question. Say your stock car will do x mph in y gear while held at z RPM. If you mod and tune the engine to get a couple hundred more hp or tq out of it, can you expect to see the car do higher speeds at the same RPM in a specific gear? Or will the extra power mainly be used for going from one speed to another more quickly? I'm new to modding cars, so I don't really know what I should expect to see.
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Model: '08 135i N54 6AT Coupe ///M Sport - E85 + 93 = E30
Mods: AA DPs + Gen I - BMS JB4 (Race + Map 2) + DCI + OCC - Cobb CP - ///M RSFB + Front Control Arms - Koni Yellow - Swift Spec R - Vorshlag camber plates - MPSS 225/255 - x-ph Angel Eyes 160w |
02-25-2015, 11:55 PM | #2 |
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The extra power will not change the speed of the vehicle at a certain RPM and gear. Modifying the cars gear ratios will do this (different differential, or transmission).
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02-26-2015, 12:04 AM | #3 |
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Thought that might be it. Thanks!
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Model: '08 135i N54 6AT Coupe ///M Sport - E85 + 93 = E30
Mods: AA DPs + Gen I - BMS JB4 (Race + Map 2) + DCI + OCC - Cobb CP - ///M RSFB + Front Control Arms - Koni Yellow - Swift Spec R - Vorshlag camber plates - MPSS 225/255 - x-ph Angel Eyes 160w |
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02-26-2015, 08:34 AM | #4 | |
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Quote:
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02-26-2015, 09:03 AM | #5 | |
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Doing mods to add power like a tune, exhaust, intake, cam(s), FI (forced induction), etc. will NOT affect what the speedo/tach. |
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