RPi/Powerchip Tune for Ram Air - 525, 530, 545, 550
04-07-2009, 09:12 PM
#102
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Originally Posted by miguex' post='826163' date='Mar 25 2009, 06:16 AM
nope!
RPI says: We were able to finally fit the RPi exhaust on the 545i. Very impressive gains of 13 rwhp @5800 rpm and 13 lb-ft torque @5800 rpm. Peak hp gain of 11.8 from stock 250 rwhp to 261.8 rwhp.
http://forums.e60.net/index.php?s=&sho...st&p=806550 (RPI wrote it himself)
RPI says: I would say 15 hp gain (Scoops + exhaust)
http://forums.e60.net/index.php?s=&sho...st&p=806623 (RPI wrote it himself)
Do the math:
Scoops (~2 hp???) + exhaust (~13hp) = ~15 hp.
Ok Confused? or hate me!
RPI says: We were able to finally fit the RPi exhaust on the 545i. Very impressive gains of 13 rwhp @5800 rpm and 13 lb-ft torque @5800 rpm. Peak hp gain of 11.8 from stock 250 rwhp to 261.8 rwhp.
http://forums.e60.net/index.php?s=&sho...st&p=806550 (RPI wrote it himself)
RPI says: I would say 15 hp gain (Scoops + exhaust)
http://forums.e60.net/index.php?s=&sho...st&p=806623 (RPI wrote it himself)
Do the math:
Scoops (~2 hp???) + exhaust (~13hp) = ~15 hp.
Ok Confused? or hate me!
Im talking about a 530i with those gains. That is what RPI states from each modification on their website. A Dyno will be the one that proves it though.
04-11-2009, 04:34 PM
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Originally Posted by mrfva' post='844311' date='Apr 11 2009, 05:27 PM
This remap sounds so tempting! 
04-11-2009, 04:36 PM
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Originally Posted by GENEaTALS' post='844318' date='Apr 11 2009, 07:34 PM
do it, get the exhaust while you are at it
04-12-2009, 09:33 PM
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I do not buy these remap figures. They are not RPI designed and what makes anyone think these remaps can do what every other one in the past 4 years has not been able to do? Churn out more than 10 hp on any of their NA engines, N52 530i or the 545/550i all NA engines.
It is just not possible to churn out 15 or more hp with a remap alone fella's. dont let them take your money.
As far as a tune plus the scoop is ludicrous. The scoop is not providing that much more air that your stock compter will not compensate for just fine. There is not more HP to be gained by tuning an ecu for a scoop since there is nothing to tune for.
The only tune's that are worth doing on NA cars is if you tune it to run on race gas and delay the timing enough to optimally ignite the high octane gas rather than pre igniting it and incompletely burning it. You can play around with all the timing and mapping etc but you will not get even 10 hp out of these NA engines or else bmw would have done this, trust me.
Dont waste your money fellas.
Same with the exhaust. There is absolutely NOTHING a tune would do for an exhaust setup. Any hp increase from an exhaust will come with or without a tune. Having a bit more flow of exhaust gases creating a bit more of a vacuum in the engine and sucking a bit more power out is completely indepenant and is not in need of a tune.
Such a way to take everyones money. Kind of sad considering from what I have read RPI seems reputable. I promise nobody is showing a dyno because it doesnt work.
So RPI why are you not showing any dyno of pre and post tunes? You have oodles of cars there all the time according to your post yet no dyno on any of the NA cars.
Beware fella's.
Also if you are going to disagree be so kind as to tell everyone how your "tune's" increase hp on these well tuned stock NA engines. Wil say one caveat, if you force the car to run lean, you can squeeze some hp out however is not a real solution for the health of a car and sensors etc. So this cannot be part of the answer if it were to be yours.
It is just not possible to churn out 15 or more hp with a remap alone fella's. dont let them take your money.
As far as a tune plus the scoop is ludicrous. The scoop is not providing that much more air that your stock compter will not compensate for just fine. There is not more HP to be gained by tuning an ecu for a scoop since there is nothing to tune for.
The only tune's that are worth doing on NA cars is if you tune it to run on race gas and delay the timing enough to optimally ignite the high octane gas rather than pre igniting it and incompletely burning it. You can play around with all the timing and mapping etc but you will not get even 10 hp out of these NA engines or else bmw would have done this, trust me.
Dont waste your money fellas.
Same with the exhaust. There is absolutely NOTHING a tune would do for an exhaust setup. Any hp increase from an exhaust will come with or without a tune. Having a bit more flow of exhaust gases creating a bit more of a vacuum in the engine and sucking a bit more power out is completely indepenant and is not in need of a tune.
Such a way to take everyones money. Kind of sad considering from what I have read RPI seems reputable. I promise nobody is showing a dyno because it doesnt work.
So RPI why are you not showing any dyno of pre and post tunes? You have oodles of cars there all the time according to your post yet no dyno on any of the NA cars.
Beware fella's.
Also if you are going to disagree be so kind as to tell everyone how your "tune's" increase hp on these well tuned stock NA engines. Wil say one caveat, if you force the car to run lean, you can squeeze some hp out however is not a real solution for the health of a car and sensors etc. So this cannot be part of the answer if it were to be yours.
04-14-2009, 12:51 PM
#109
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Originally Posted by 545OH' post='845458' date='Apr 12 2009, 10:33 PM
I do not buy these remap figures. They are not RPI designed and what makes anyone think these remaps can do what every other one in the past 4 years has not been able to do? Churn out more than 10 hp on any of their NA engines, N52 530i or the 545/550i all NA engines.
It is just not possible to churn out 15 or more hp with a remap alone fella's. dont let them take your money.
As far as a tune plus the scoop is ludicrous. The scoop is not providing that much more air that your stock compter will not compensate for just fine. There is not more HP to be gained by tuning an ecu for a scoop since there is nothing to tune for.
The only tune's that are worth doing on NA cars is if you tune it to run on race gas and delay the timing enough to optimally ignite the high octane gas rather than pre igniting it and incompletely burning it. You can play around with all the timing and mapping etc but you will not get even 10 hp out of these NA engines or else bmw would have done this, trust me.
Dont waste your money fellas.
Same with the exhaust. There is absolutely NOTHING a tune would do for an exhaust setup. Any hp increase from an exhaust will come with or without a tune. Having a bit more flow of exhaust gases creating a bit more of a vacuum in the engine and sucking a bit more power out is completely indepenant and is not in need of a tune.
Such a way to take everyones money. Kind of sad considering from what I have read RPI seems reputable. I promise nobody is showing a dyno because it doesnt work.
So RPI why are you not showing any dyno of pre and post tunes? You have oodles of cars there all the time according to your post yet no dyno on any of the NA cars.
Beware fella's.
Also if you are going to disagree be so kind as to tell everyone how your "tune's" increase hp on these well tuned stock NA engines. Wil say one caveat, if you force the car to run lean, you can squeeze some hp out however is not a real solution for the health of a car and sensors etc. So this cannot be part of the answer if it were to be yours.
It is just not possible to churn out 15 or more hp with a remap alone fella's. dont let them take your money.
As far as a tune plus the scoop is ludicrous. The scoop is not providing that much more air that your stock compter will not compensate for just fine. There is not more HP to be gained by tuning an ecu for a scoop since there is nothing to tune for.
The only tune's that are worth doing on NA cars is if you tune it to run on race gas and delay the timing enough to optimally ignite the high octane gas rather than pre igniting it and incompletely burning it. You can play around with all the timing and mapping etc but you will not get even 10 hp out of these NA engines or else bmw would have done this, trust me.
Dont waste your money fellas.
Same with the exhaust. There is absolutely NOTHING a tune would do for an exhaust setup. Any hp increase from an exhaust will come with or without a tune. Having a bit more flow of exhaust gases creating a bit more of a vacuum in the engine and sucking a bit more power out is completely indepenant and is not in need of a tune.
Such a way to take everyones money. Kind of sad considering from what I have read RPI seems reputable. I promise nobody is showing a dyno because it doesnt work.
So RPI why are you not showing any dyno of pre and post tunes? You have oodles of cars there all the time according to your post yet no dyno on any of the NA cars.
Beware fella's.
Also if you are going to disagree be so kind as to tell everyone how your "tune's" increase hp on these well tuned stock NA engines. Wil say one caveat, if you force the car to run lean, you can squeeze some hp out however is not a real solution for the health of a car and sensors etc. So this cannot be part of the answer if it were to be yours.
04-14-2009, 01:13 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
Suspension: Renntech Lowering Module
Wheels/Tires: Radenergie R10, Falken FK452 245/30/20, Yokohama ADVAN Sport 285/25/20
-----------------------------------------
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!
Exterior: M-Tech Aero kit | M5 Mirrors | M5 Rear Bumper | Trunk Lid Finisher | Vorsteiner decklid spoiler | 50% Formula One Pinnacle Tint
Suspension and Brakes: Bilstein PSS9 coilovers, JBT BBK: 16" cross-drilled rotors, 8 piston and 15" cross-drilled rotors, 4 piston
Wheels: VIP Modular VR 02 20x9F, 20x10R | Toyo T1R 245/30/20F, 285/25/20R
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MOST IMPORTANT: Hardwired V1; =)
ED Date: 4/7/05, Re-delivery date: 5/21/05
Hey newb,
Talking out of your arse, I see. There is a 545i owned by skeeter that has the RPi exhaust, scoop, and tune that will walk all over your 545i. That's a FACT.
Talking out of your arse, I see. There is a 545i owned by skeeter that has the RPi exhaust, scoop, and tune that will walk all over your 545i. That's a FACT.
Originally Posted by 545OH' post='845458' date='Apr 12 2009, 10:33 PM
snip....