550i feels like it has turbo lag
02-07-2010 | 08:00 AM
#1
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I've seen a few threads on this in the past, and my search skills must be rusty.
Can someone point me to a good thread explaining why my e60 doesn't kick me in the a$$ the same way my e39 540 did? Not complaining. With my MT, I've learned how to get maximum power out of each gear, so this is of little consequesnce to me. My buddy who just got an auto 550 was questioning this. I wanted to explain to him why - and see if I can give him some advice on how to get the most out of the auto.
I did tell him to stop mashing the gas and feather it a bit more. We'll see if that helps.
Thanks for the help.
Can someone point me to a good thread explaining why my e60 doesn't kick me in the a$$ the same way my e39 540 did? Not complaining. With my MT, I've learned how to get maximum power out of each gear, so this is of little consequesnce to me. My buddy who just got an auto 550 was questioning this. I wanted to explain to him why - and see if I can give him some advice on how to get the most out of the auto.
I did tell him to stop mashing the gas and feather it a bit more. We'll see if that helps.
Thanks for the help.
02-07-2010 | 08:29 AM
#3
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From: Originally from Koeln, Deutschland. Enjoying it in Bonita Springs, Florida Now :)
The 540i didn't have turbos, neither does the current 550i. What your talking about is most likely throttle lag...maybe get a Sprint Booster?
02-07-2010 | 08:48 AM
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02-07-2010 | 09:13 AM
#6
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From: NM
I am wondering kind of the same thing:
When I put it in DS and mash the throttle I see my DTC light up and the car takes a second or two before I get the tunnel effect. When I shut off DTC and do the same thing the tires spin and I go sideways. My guess is that I have to learn where the sweet spot is on the throttle so I can effectively launch without power braking and without going through a set of tires every 6 months as this is my daily driver.
02-07-2010 | 09:25 AM
#7
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My Ride: 2008 Space Gray 550i, Light Poplar Wood, Anthracite Head Liner, Sport Package, Sport Automatic Transmission, Cold Weather Package, Front Ventilated Comfort Seats in Black Nasca Leather, NAV, HUD, Active Steering, Comfort Access, Night Vision, Lane Deviation Warning, Active Cruise Control, Heated Rear Seats, Folding Rear Seats, Power Shade w/ Rear Side-Shades, Rear Air Bags, Logic 7, HD Radio, Sirius Satellite Radio, iPod/USB Adapter. Car in BMW Body Shop, estimated completion 01/24/07.
Remember that with the auto, unless you put it in Sport mode, it's starting out in 2nd gear.... a BMW accomodation to meet EPA's CAFE mileage standards and thereby avoid the gas guzzler tax...
Cal
Cal
02-07-2010 | 09:58 AM
#8
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invest in a sprint booster...
and/or try the 25 sec transmission reset...
and/or try the 25 sec transmission reset...
02-07-2010 | 10:19 AM
#9
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You best solution is a Sprintbooster or Velocity unit. They will reduce the throttle lag delay. They work by boosting the throttle signal given to the engine when you hit the gas pedal. The Velocity is more expensive but unlike the SB, it is adjustable to 4 different setting and can be turned off with buttons on a control unit. SB is always on and not adjustable.
02-07-2010 | 10:36 AM
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From: Originally from Koeln, Deutschland. Enjoying it in Bonita Springs, Florida Now :)
+1. I also had an E39 540I Sport and it was a lot stronger off the line than my 550. This is a result of the throttle lag delay om the E60's thottle by wire system and transmission gearing. The E39 540I Sport in 2003 at least had a final drive ratio for all out acceleration -- fuel economy be damned.
You best solution is a Sprintbooster or Velocity unit. They will reduce the throttle lag delay. They work by boosting the throttle signal given to the engine when you hit the gas pedal. The Velocity is more expensive but unlike the SB, it is adjustable to 4 different setting and can be turned off with buttons on a control unit. SB is always on and not adjustable.
You best solution is a Sprintbooster or Velocity unit. They will reduce the throttle lag delay. They work by boosting the throttle signal given to the engine when you hit the gas pedal. The Velocity is more expensive but unlike the SB, it is adjustable to 4 different setting and can be turned off with buttons on a control unit. SB is always on and not adjustable.