2008 550i Throttle Response

So I love my new 550i Sport. The only annoying thing is the crappy throttle response. What is the best thing to do about it? Whats the most effective tune that'll change it? I bought this car because I loved it and it is my daily driver. I loved the Immediacy of the throttle response of the 2010 M5 I drove. I want it more like that. Anyone know the best tune that'll do it? I was thinking Dinan but I'm not sure.

Originally Posted by nwilson44

So I love my new 550i Sport. The only annoying thing is the crappy throttle response. What is the best thing to do about it? Whats the most effective tune that'll change it? I bought this car because I loved it and it is my daily driver. I loved the Immediacy of the throttle response of the 2010 M5 I drove. I want it more like that. Anyone know the best tune that'll do it? I was thinking Dinan but I'm not sure.

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I am not sure about 550i, May be sprint booster is a good start but you cannot expect a major change..

That was the one reason i picked E60 535i and tuned it(Cobb Stage 2+ FMIC).. now i feel like i am driving an M5 and can put serious 0-60 (less than 4.5 easily) and top end speed is crazy as well..

I don't know that there's anything that can be done. That's one of the things I hated about my 550 and it wasn't consistent either. Sometimes it was immediate and the engine would rev quickly while other times it would rev painfully slow. It made starting from a standstill really iffy because depending on what kind of mood it was in you ran the risk of stalling it if the throttle didn't react quickly enough.

Sadly the 535 isn't any better in this department, even with the JB4. It's definitely more consistent but taking off from a stop I either goose the throttle and jerk off the line or I barely move.

M5 = 10 throttle bodies, 550=1, Throttle hesitation is life via throttle by wire

Well I have the automatic and 1st gear is so low it takes off (when it decides to use 1st). I figured there has to be a good tune that could het rid of it. The M5 has drive by wire, although it has 9 more throttle bodies.... Idk anyone know of a tune that is most effective of aliviating this? My 2003 E39 reacts the same way.

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If only there was a tune that would allow the SAT to shift into 6th gear when in "Sport" or "DS" mode. The throttle response and trans behavior is perfect, although at the expense of fuel...

Originally Posted by MRV99

M5 = 10 throttle bodies, 550=1, Throttle hesitation is life via throttle by wire

I don't think it's the amount of throttle bodies that's the problem and I don't think it's throttle by wire that's the problem either. Throttle by wire systems have been around for awhile now and there are plenty of other manufactures that don't have the same issues BMW does. It's BMW's implementation of throttle by wire (or their tuning) that's the problem.

Originally Posted by Mike_K

I don't think it's the amount of throttle bodies that's the problem and I don't think it's throttle by wire that's the problem either. Throttle by wire systems have been around for awhile now and there are plenty of other manufactures that don't have the same issues BMW does. It's BMW's implementation of throttle by wire (or their tuning) that's the problem.

That's what I thought. It has to be a simple tune that'll change it. The car is awesome and I love the sound and handling but this is literally the only thing that's bothersome. Dinan has a tune, I just wanted to see if there was a better one. I want those supersprint headers too haha

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Originally Posted by nwilson44

That's what I thought. It has to be a simple tune that'll change it. The car is awesome and I love the sound and handling but this is literally the only thing that's bothersome. Dinan has a tune, I just wanted to see if there was a better one. I want those supersprint headers too haha

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Dinan- Expensive tune with a very minimal performance output for E60 550i

Originally Posted by nwilson44

So I love my new 550i Sport. The only annoying thing is the crappy throttle response. What is the best thing to do about it? Whats the most effective tune that'll change it? I bought this car because I loved it and it is my daily driver. I loved the Immediacy of the throttle response of the 2010 M5 I drove. I want it more like that. Anyone know the best tune that'll do it? I was thinking Dinan but I'm not sure.

Did you try using in "sport" mode? For my car, it was noticable driving in "D" at a red light. But once it is in "sport", car takes off with a sweet exhaust note. I sold my car 2 weeks ago. I took the buyer for a ride in sport mode and he felt in love with the throttle response from a stand still and on passing. Sold the car on that day without him test driving my car.

Originally Posted by CK530

Did you try using in "sport" mode? For my car, it was noticable driving in "D" at a red light. But once it is in "sport", car takes off with a sweet exhaust note. I sold my car 2 weeks ago. I took the buyer for a ride in sport mode and he felt in love with the throttle response from a stand still and on passing. Sold the car on that day without him test driving my car.

Ohh yeah sport has a lot better responsiveness. However then the shift map turns really aggressive for daily commute to work.

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Originally Posted by F1.tifosi

Dinan- Expensive tune with a very minimal performance output for E60 550i

Care to elaborate? I'm not looking for a Crap load of extra power, rather just better throttle response. Extra power is always welcome though haha

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As i told in my first post, i don't have much to elaborate w.r.t E60 550i but i am trying to help you save $$$$

I don't see anyone would spend $$ to just have a better throttle response, as someone mentioned here.. you could change your drive style from D to S..

Anyways all the best for what ever option you will be opting..

Originally Posted by Mike_K

I don't think it's the amount of throttle bodies that's the problem and I don't think it's throttle by wire that's the problem either. Throttle by wire systems have been around for awhile now and there are plenty of other manufactures that don't have the same issues BMW does. It's BMW's implementation of throttle by wire (or their tuning) that's the problem.

I am sorry but you are wrong on that front. Drive by wire has always been a slower response than a by wire system and is very common on all makes and not just BMW. And believe me having 10 throttle bodies compared to 1 makes a huge difference.

This thread was created surprisingly at the same time experiencing poor throttle response after changing my spark plugs last night from BOSCH to NGK BKR6EQUP. I don't think the plugs themselves are faulty, and not getting any fault codes, but definitely notice more lag in acceleration. :0(

Maybe you guys need to reset your trans. I believe you have to hold the pedal down for a cretain amount of time and it factory resets. I have a manual so i wouldnt know but maybe someone can chime in.

Originally Posted by KLR4LIFE

Maybe you guys need to reset your trans. I believe you have to hold the pedal down for a cretain amount of time and it factory resets. I have a manual so i wouldnt know but maybe someone can chime in.

Yup did it this morning. It seemed to help a little.

1. Key in ignition
2. Press SS button until all electronics are visible, no foot on brake- don't want the engine to start.
3. Depress gas pedal, pinned to floor for 30 seconds and release.

Maybe my new spark plugs need to break in?! LOL :0)

Originally Posted by eWERK-E60

Yup did it this morning. It seemed to help a little.

1. Key in ignition
2. Press SS button until all electronics are visible, no foot on brake- don't want the engine to start.
3. Depress gas pedal, pinned to floor for 30 seconds and release.

Maybe my new spark plugs need to break in?! LOL :0)

SS button?

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Oops, start/stop ignition switch.

Originally Posted by MRV99

I am sorry but you are wrong on that front. Drive by wire has always been a slower response than a by wire system and is very common on all makes and not just BMW. And believe me having 10 throttle bodies compared to 1 makes a huge difference.

With all due respect, no I'm not. Drive by wire was terrible in it's first iterations but quickly caught up with traditional throttle systems and now you'd be hard pressed to tell the difference.

Hell, my now 9 year old turbo Grand Prix had a drive by wire system and it was just as fast as a standard cabled throttle body. I'm not sure why you'd even bother disputing this... It's not as if the technology doesn't exist to make a proper drive by wire setup. It's often the tuning that lacks. You may as well argue that grass is purple.

With respect to your multiple throttle bodies, sure they give you nominally better throttle response than a standard single throttle body car but the reason the 550 and other drive by wire BMW's stink isn't because they're lacking more throttle bodies; it's because of BMW's implementation of drive by wire or their tuning. I've owned a lot of drive by wire cars though and none have sucked as much as my BMWs as far as throttle response goes so I'm likely to believe it's a BMW thing, not a drive by wire thing and certainly not an "OMG this car needz moar throttle bodies!" thing.

My credentials: Owned E60 M5 (SMG) and E60 550 (6 speed manual). Own modified 535, have owned several performance car parts companies and have been tuning/ modifying cars with drive by wire throttle bodies for 10 years.

For mine the throttle is just useless for the first 20% or so

I've had several drive by wire cars also and never had this kind of delay before.

Originally Posted by Mike_K

With all due respect, no I'm not. Drive by wire was terrible in it's first iterations but quickly caught up with traditional throttle systems and now you'd be hard pressed to tell the difference.

Hell, my now 9 year old turbo Grand Prix had a drive by wire system and it was just as fast as a standard cabled throttle body. I'm not sure why you'd even bother disputing this... It's not as if the technology doesn't exist to make a proper drive by wire setup. It's often the tuning that lacks. You may as well argue that grass is purple.

With respect to your multiple throttle bodies, sure they give you nominally better throttle response than a standard single throttle body car but the reason the 550 and other drive by wire BMW's stink isn't because they're lacking more throttle bodies; it's because of BMW's implementation of drive by wire or their tuning. I've owned a lot of drive by wire cars though and none have sucked as much as my BMWs as far as throttle response goes so I'm likely to believe it's a BMW thing, not a drive by wire thing and certainly not an "OMG this car needz moar throttle bodies!" thing.

My credentials: Owned E60 M5 (SMG) and E60 550 (6 speed manual). Own modified 535, have owned several performance car parts companies and have been tuning/ modifying cars with drive by wire throttle bodies for 10 years.

The E60 M5's throttle response is way better for whatever reason. Especially in P500 mode with the crazy response. The only other BMW that had compatible response was my 1995 E34 540i. It wasn't drive by wire though.

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And we all know these issues exist, my question is what's the most effective way to fix it.

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My delay is not bad. I purchased the Sprint Booster one week after owning the car and it works. However, I never seem to use it for some reason. I will be selling it soon. I am going Dinan S3, my high flow intake and throttle body arrive on Monday; dropping it off at the shop for engine and transmission software upgrades sometime next week. Shortly afterwards, I am adding the Dinan stage 1 suspension; still undecided about their exhaust. I really don't want a loud car. I really enjoy it being quiet. So much for being finished with modding.

Originally Posted by Vapiano

My delay is not bad. I purchased the Sprint Booster one week after owning the car and it works. However, I never seem to use it for some reason. I will be selling it soon. I am going Dinan S3, my high flow intake and throttle body arrive on Monday; dropping it off at the shop for engine and transmission software upgrades sometime next week. Shortly afterwards, I am adding the Dinan stage 1 suspension; still undecided about their exhaust. I really don't want a loud car. I really enjoy it being quiet. So much for being finished with modding.

Hey dude I think on our cars, the supersprint headers will have the most effect on performance.

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