Throttle kizmo

[flybobbie]

So ordered one of those throttle response gadgets called Universal Throttle Response Controller 9-Mode.

I like the steering light but don't like the sluggish throttle response, so thought i would try.
See how it goes.

Looks small enough to place in the ash tray area.

 

[Silverstar]

I’ve got the Racechip XLR throttle pedal box which is controlled by app on my iPhone and it works a treat. So I guess this must be similar. Some say if you remap the ECU then this throttle pedal box is not needed but I have both and even with the ECU remap I can still tell the difference with the box switched on. With regards to the settings, I played around with for the first day or two but since then I’ve just left it at the sportiest setting and haven’t needed to adjust it since.

 

[matsmith749]

Yep - I had something very similar years ago on an old merc v8 - very noticeable & perked the throttle response right up.

Whilst it's no more power, and effectiveley exactly the same as you pushing down harder on the accelerator, it's tough to overcome years of habits.

It's a good buy IMHO.

I would velcro it under the steering wheel somewhere out of site once you have got over the novelty factor.

 

[Five-O]

I've always been a bit skeptical about these relativity cheap electronic mods. Can you let us know how you get on with it please.

 

[coldel]

It is (I assume if its similar to all the other gadgets over the years that sit in the drive by wire process) something which brings forward the throttle curve in relation to pedal position - same as what the sport button does on the E85. As mentioned, its no different to pushing the pedal right in but means you can drive less leaden footed and still get that throttle response.

 

[B21]

It is (I assume if its similar to all the other gadgets over the years that sit in the drive by wire process) something which brings forward the throttle curve in relation to pedal position - same as what the sport button does on the E85. As mentioned, its no different to pushing the pedal right in but means you can drive less leaden footed and still get that throttle response.

There are 3 variables (at least) it could affect…

The proportionality of response…eg does 20% throttle position give you 20% throttle demand or maybe 80% demand?

How fast does it respond to a change of pedal position…eg 10 millisec or 200 millisecond

What’s the smoothing factor..ie if you move the throttle a little over short periods..over what time does it average a response….

Also does it integrate a rapid and large shift as an interpretation of a key event like kick down..

Maybe if you lift off rapidly it pre tensions the ABS…

Who knows..

 

[coldel]

Yep it ultimately comes down to the shape of curve of pedal position vs throttle position. Usually, the first lets say for arguments sake 50% of pedal movement only gives 25% of throttle then it climbs at a bigger rate. This is so you dont end up kangarooing down the road and makes for smoother driving for your average person. As far as I have seen on pretty much all of these devices is that it just changes that curve to be steeper at the front end of the pedal travel. Yes it does mean less time to get to full throttle vs pedal travel but we are talking tiny amounts of time, none that would make a noticeable difference

 

[flybobbie]

Well fitted, best £38 i spent on the car.
As usual bit of a ball ache to fit, wires on unit short and need child fingers to remove connector from throttle lever.
So i just put in the unit in P3.9 mode (Sport).........and it's staying there, unless snow or heavy rain.
Now accelerates like a sports car. Certainly peps up the 23i.

So as i want it, light steering with instant throttle response.
Might even change gear better as faster spin up put a bit more momentum in gearbox for a smoother change.
Need to experiment with that.

 

[Five-O]

On that review I'm going to get one too. What one did you get? Seems like there are a few varieties.

 

[flybobbie]

On that review I'm going to get one too. What one did you get? Seems like there are a few varieties.

As picture at start of post. Lots n eBay.
https://www.ebay.co.uk/itm/204507086896

Not tried much the lessor modes, just drove home on the P3.9 setting.
I guess i will get use to it soon and won't feel special, like everything.

 

[Five-O]

Are they all the same wiring connector though?

 

[flybobbie]

Seem to cover a range of cars so must be some industry standard.
I bet the design of fly by wire throttle is patent and all manufacturers licence it.

 

[flybobbie]

Another day using it. P3.9 is quite sensitive, in as much you need to go when you push. I hesitated as i pulled away and it bunny hopped.
Drop it back to P3.1 and just a bit gentler on the take off, say better for town driving.
Drop to P.2 if shuffling in traffic jams.
P.1 and P.2 modes don't notice much difference from normal mode.
Eco is sort of hearse mode, slower than normal, i can see you might safe fuel.

 

[mcbutler]

So ordered one of those throttle response gadgets called Universal Throttle Response Controller 9-Mode.
s-l1600.jpg
I like the steering light but don't like the sluggish throttle response, so thought i would try.
See how it goes.

Looks small enough to place in the ash tray area.

All this does is change the throttle demand percentage.
Nearly all cars come with the throttle set electronically so that (for example) when you press the throttle 20% it sends a 50% demand to the ECU.
This makes the car 'feel' nippy but does not change any power output etc.
I mapped this out on my 35i to a linear value, 10% = 10%, far more controllable and smoother.

 

[Five-O]

I wonder what it is set to as standard.
How does this affect the sport button? In sport mode the throttle is a lot sharper.

 

[Silverstar]

I wonder what it is set to as standard.
How does this affect the sport button? In sport mode the throttle is a lot sharper.

The response is sharper in both modes.

 

[flybobbie]

I flicked through the sport button today and it felt disconnected.
Didn't seem to notice steering getting heavier in sport, not sure if traction is affected.
It might be switched out so quicker acceleration doesn't trigger traction.
Wouldn't have thought it was that clever, who knows.

In P3.9 mode you have to be careful pulling away in case car in front suddenly stops, don't tail gate the one in front..

Doesn't add any extra power, just throttle response curve, but does give power sooner and seems to accelerate quicker.
MPG seems to agree!

Don't think i would fit on anything more powerful than the 23i.

 

[Silverstar]

Don't think i would fit on anything more powerful than the 23i.

I have it on my 30i :evil: :rofl:

 

[BMWZ4MC]

I suspect each and everyone of you would prefer a throttle cable

 

[flybobbie]

I suspect each and everyone of you would prefer a throttle cable

Then could have drilled a new hole in throttle linkage and shortened the lever to give quicker response.