[beecee]

Can a racechip ultimate or a remap resolve this? If so which one keeping in mind that I'm no longer under manufacture warrantee?
Would appreciate your feedback.

BeeCee

[Mountain_Commando]

Originally Posted by beecee

Can a racechip ultimate or a remap resolve this? If so which one keeping in mind that I'm no longer under manufacture warrantee?
Would appreciate your feedback.

BeeCee

Mate, I have a Racechip Ultimate in my 435 Gran Coupe, and it's hands down the best money I've spent on any car. Comfort mode feels much more alive now, and Sports mode is simply ridiculous, even idle is lower and engine just runs smoother. Ever spun your rear wheels whilst launching from standstill on a completely dry road? Ever felt actual fear due to sheer acceleration? You will with the Racechip. Don't even think twice.

Since it's a piggyback, all you have to do is remove it whenever you go for servicing and your warranty still applies. They'll never know you had it. Takes 10 minutes to install.

[stormlv]

Well, depends on what you do, but I think a Stage 1 won't dramatically change that feeling.

I had a remap taking my 435d to 360 hp and while I did feel changes (improvements) in the way it drove, it in no way "transform" the car.

Moreover, the "launch" was almost indistinguishable from stock.
I think I gained 0.2 seconds in 0-62, but I really doubt anyone would be able to butt feel it.

If I were you, I'd first try to time a 0-60 and see what you get vs manufacturer specs and other people here on the forum.
Maybe it's indeed slow and you need to investigate on that further.

[kern417]

Try better tires first.

[beecee]

Originally Posted by stormlv

Well, depends on what you do, but I think a Stage 1 won't dramatically change that feeling.

I had a remap taking my 435d to 360 hp and while I did feel changes (improvements) in the way it drove, it in no way "transform" the car.

Moreover, the "launch" was almost indistinguishable from stock.
I think I gained 0.2 seconds in 0-62, but I really doubt anyone would be able to butt feel it.

If I were you, I'd first try to time a 0-60 and see what you get vs manufacturer specs and other people here on the forum.
Maybe it's indeed slow and you need to investigate on that further.

Thanks for that I will surely time it before and after and let you know.
Out of curiosity, how does the initial launch of your M4 compare to the xdrive on the 435d? Which one feels faster at launch? I'm sure the M4 will eat it alive on a rolling start.

[BEM-S4]

Turbo cars in general don't launch particularly well. And in real world driving going from 0-60 isn't nearly as important as say 60-80 when trying to pass.

[enjoythemusic]

Originally Posted by BEM-S4

Turbo cars in general don't launch particularly well. And in real world driving going from 0-60 isn't nearly as important as say 60-80 when trying to pass.

Agreed.

Also of note, the M series has LSD whereas the 435i RWD is an open diff. So even if you had 'good' power output (435i with 400+HP/TQ), the open diff will hold the car back to some extent as a wheel(s) spins / hops. For max launch you'll need not just more engine output than stock, you'll want to swap the stock open diff for a LSD.

[stormlv]

Originally Posted by beecee

Thanks for that I will surely time it before and after and let you know.
Out of curiosity, how does the initial launch of your M4 compare to the xdrive on the 435d? Which one feels faster at launch? I'm sure the M4 will eat it alive on a rolling start.

I have yet to find a place where I can properly launch the M4.
To date, I've only managed to light up the rear wheels when doing a launch

The 435d did it a lot more cleanly and consistently.

Both feel fast, but I have to admit I really enjoy the drama of the M4's launch.

One of these days I have to time one of my runs in the M4 and see what I get. With the 435d I was somewhere ~4.4seconds in 0-100kph (62mph)

[Sumptuous Hummus]

Originally Posted by beecee

Can a racechip ultimate or a remap resolve this? If so which one keeping in mind that I'm no longer under manufacture warrantee?
Would appreciate your feedback.

BeeCee

You are literally destroying your torque converter everytime you do a launch with brake boost. The standard 335i equipment is not designed for that shit like the m4 with its dual clutch, or like a manual car where you can just replace the clutch from all your foolish driving.

Drive the car properly

[beecee]

Originally Posted by Sumptuous Hummus

You are literally destroying your torque converter everytime you do a launch with brake boost. The standard 335i equipment is not designed for that shit like the m4 with its dual clutch, or like a manual car where you can just replace the clutch from all your foolish driving.

Drive the car properly

Calm down grandad.. if I wanted to know the different ways to damage my torque converter I would have asked but since that wasn't the initial question at hand here piss off and go fix something!

[Sumptuous Hummus]

Originally Posted by beecee

Calm down grandad.. if I wanted to know the different ways to damage my torque converter I would have asked but since that wasn't the initial question at hand here piss off and go fix something!

sorry, I did not mean to come off as rude, but you should have bought another car if 0-60 times is all you care about. this car is all about the midrange torque, not so much full throttle pulls where the torque tapers off past 6000RPM.

to add some sort of useful input, an ECU reflash would be more effective then a piggyback. try getting a downpipe before the reflash, it will transform your car completely.

[Sumptuous Hummus]

Originally Posted by stormlv

Well, depends on what you do, but I think a Stage 1 won't dramatically change that feeling.

I had a remap taking my 435d to 360 hp and while I did feel changes (improvements) in the way it drove, it in no way "transform" the car.

Moreover, the "launch" was almost indistinguishable from stock.
I think I gained 0.2 seconds in 0-62, but I really doubt anyone would be able to butt feel it.

If I were you, I'd first try to time a 0-60 and see what you get vs manufacturer specs and other people here on the forum.
Maybe it's indeed slow and you need to investigate on that further.

I laughed out loud when I read your Profile thing

Drives: Yes

[SteveinArizona]

Originally Posted by BEM-S4

Turbo cars in general don't launch particularly well. And in real world driving going from 0-60 isn't nearly as important as say 60-80 when trying to pass.

I occasionally have to rent cars for business and I completely agree. Where most cars fail is in passing at highway speeds. 0-60 from a stop light isn't really that important, at least to me, as I almost always pull away before others with my 330e.

But I have found a lot of difficulty in various rental cars in passing on the highway. But with my BMW I have no difficulty passing on the highway and my only problem is that I start to get up to 100 before I notice and slow down.

I wonder why the car magazines put such an emphasis on 0-60 instead of 60-80?

[otay]

Can't answer the question, and at risk of a thread-jack...

Hadn't looked at RaceChip before. Anyone know how this compares to Dinan's Sport Tuner? Looks like RaceChip has 3 models, with the highest priced one being $650 USD which includes bluetooth connectivity. But they claim +75 HP where Dinan's unit with BT connectivity is $300 and claims +30 HP.

?

[CalCarNut]

Originally Posted by SteveinArizona

I occasionally have to rent cars for business and I completely agree. Where most cars fail is in passing at highway speeds. 0-60 from a stop light isn't really that important, at least to me, as I almost always pull away before others with my 330e.

But I have found a lot of difficulty in various rental cars in passing on the highway. But with my BMW I have no difficulty passing on the highway and my only problem is that I start to get up to 100 before I notice and slow down.

I wonder why the car magazines put such an emphasis on 0-60 instead of 60-80?

Speed limits are generally under 80mph (?) and the 1/4 mile drag/stop light race is more common than a rolling 60-80 pass I'm guessing.
I agree...my GC from a stop is fast. If I want to get past someone in the 60-80mph range, I have to grab a couple of gears and get it on some boost/rpm wind up. The drawbacks to a turbo 4. I've little doubt a 3.0 is less drama/effort....

[BEAR-AvHistory]

Calm down grandad.

Don't make fun of us grandads. Some of us would joyfully blow your 435 into the weeds.

Turbos need a preload off the line or the first few feet will be slow. Not much else to do there.

Like anything else there can be to much of a good thing if you are power braking out of every light. That said "launch control" is factory designed power braking.

ECU flash is not going to work anymore BMW encryption algorithm killed it thats why Dinan went to a piggy back which they knocked for years in their adds.

Ever felt actual fear due to sheer acceleration? You will with the Racechip. Don't even think twice.

Fear during acceleration in a 435, you can't be serious.

[Mountain_Commando]

Originally Posted by BEAR-AvHistory

Fear during acceleration in a 435, you can't be serious.

What can I say, I'm a lightweight. But love that my car can give me such a thrill.

[eluded]

Originally Posted by SteveinArizona

Where most cars fail is in passing at highway speeds. 0-60 from a stop light isn't really that important

Completely agree, I have S2000 one of the worlds fastest cars but not from a dead stop.

[BEAR-AvHistory]

Originally Posted by Mountain_Commando

What can I say, I'm a lightweight. But love that my car can give me such a thrill.

Hey, I agree they have more than enough go to be a lot of fun especially in a traffic light Grand Prix. Just not enough to instill fear & give you an OH, S**T moment on a fast 3/4 shift.

BTW I did put a 440 into the grass backwards at the PCD. Not exactly OH S**T but enough to get my attention. Gotta excuse us old farts whose reflects are not as good as we remembered.

[Mountain_Commando]

Originally Posted by BEAR-AvHistory

Hey, I agree they have more than enough go to be a lot of fun especially in a traffic light Grand Prix. Just not enough to instill fear & give you an OH, S**T moment on a fast 3/4 shift.

"Traffic light grand prix"

Yes that's exactly where the fear factor comes in. Especially on the narrow streets of Melbourne, where you have to be hyper aware simultaneously of the curb, the lane marker, the dreaded and stealthy speed cameras, and the occasional wombat.

[mike@x-ph.com]

A tune will definitely help .. .I would go with Jb stage 1 or Jb4

[kern417]

none of these suggestions will make you hook. i still say get some aggressive summer tires and see what you think.