Sprint Booster Arrived!
07-25-2009, 10:11 AM
#41
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Originally Posted by sdg1871' post='953404' date='Jul 24 2009, 03:00 PM
OK. I have now driven the car about 90 miles with the SB. I like it but I do not think it is quite as amazing as some members say that it is.
There is no doubt that it makes the gas pedal more responsive. In fact, my wife told me that she was getting carsick (which she never gets) and asked me if the SB makes the ride "rougher".
The SB does make the gas pedal more responsive. Power does come on faster once you hit the gas. But it is still not as good as the stock 540i Sport was in terms of throttle response. When I floor it, I still feel an initial delay. The delay is shorter with SB but still there. But once the power does come on, the engine definitely revs up faster because the SB is giving the engine a stronger throttle signal.
Is SB worth $300? Yes. Would it be worth $1000, I don't think so as I still observe a delay between application of WOT and full power from the engine. The delay is just less.
I understand that the SB for manual trans is stronger and more responsive than the one for auto trans.
There is no doubt that it makes the gas pedal more responsive. In fact, my wife told me that she was getting carsick (which she never gets) and asked me if the SB makes the ride "rougher".
The SB does make the gas pedal more responsive. Power does come on faster once you hit the gas. But it is still not as good as the stock 540i Sport was in terms of throttle response. When I floor it, I still feel an initial delay. The delay is shorter with SB but still there. But once the power does come on, the engine definitely revs up faster because the SB is giving the engine a stronger throttle signal.
Is SB worth $300? Yes. Would it be worth $1000, I don't think so as I still observe a delay between application of WOT and full power from the engine. The delay is just less.
I understand that the SB for manual trans is stronger and more responsive than the one for auto trans.
BTW, you should also reset the transmission to get an even better, smoother and faster ride out of the Sprint Booster!! 
07-25-2009, 12:29 PM
#42
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Originally Posted by sdg1871' post='953404' date='Jul 24 2009, 06:00 PM
OK. I have now driven the car about 90 miles with the SB. I like it but I do not think it is quite as amazing as some members say that it is.
My SAT transmission with the sport button pretty much does the same affect- but its real
07-25-2009, 03:28 PM
#43
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Originally Posted by melimel' post='954099' date='Jul 25 2009, 01:12 PM
i like it.. and for the price i got it for it is great.. worth it.. but now? i cant even feel the power anymore.. in my crazy head its lagging again.. but im in a v8.. idk.. i need more h.p for sure.. im all about the looks, but i need more horsepower cause im starting to feel like my car is slow! lol... i need an M. seriously and i miss driving stick 
07-26-2009, 07:10 AM
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Originally Posted by melimel' post='954099' date='Jul 25 2009, 01:12 PM
i like it.. and for the price i got it for it is great.. worth it.. but now? i cant even feel the power anymore.. in my crazy head its lagging again.. but im in a v8.. idk.. i need more h.p for sure.. im all about the looks, but i need more horsepower cause im starting to feel like my car is slow! lol... i need an M. seriously and i miss driving stick
I need more power now!
07-26-2009, 07:12 AM
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Originally Posted by melimel' post='954099' date='Jul 25 2009, 01:12 PM
i like it.. and for the price i got it for it is great.. worth it.. but now? i cant even feel the power anymore.. in my crazy head its lagging again.. but im in a v8.. idk.. i need more h.p for sure.. im all about the looks, but i need more horsepower cause im starting to feel like my car is slow! lol... i need an M. seriously and i miss driving stick
07-26-2009, 07:13 AM
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Originally Posted by flyingpuck' post='954168' date='Jul 25 2009, 02:11 PM
After driving it for a while, you will become accustomed to the way the car accelerates and be better at driving it smoothly! BTW, you should also reset the transmission to get an even better, smoother and faster ride out of the Sprint Booster!!
BTW, you should also reset the transmission to get an even better, smoother and faster ride out of the Sprint Booster!!
07-26-2009, 07:15 AM
#47
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Originally Posted by CWS530' post='953541' date='Jul 24 2009, 07:56 PM
You're a bounty of experience and knowledge.
07-26-2009, 10:03 AM
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My Ride: 2011, E90 M3 Sedan. Alpine White.Competition package, Keyhole cover, fender reflectors in Alpine white, RPI Exhaust, 19
mike lets get m's... i cant take this anymore
07-26-2009, 10:39 AM
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