Race chip

[Blobcat]

 

[Gazwould]

How do you explain the guys findings, the Sema display and the video of a throttle body being filmed ?

I bought this to hopefully overcome a safety issue of a half second delay in drive by wire pedal to the car moving .

Too many blind junctions around here .

I had no idea prior to the Merc what a pedal box was and thought it was something to do with pedals in a rally application .


And I'm delighted to say it's worked . I'm here to share my findings and some of you are committed to saying I somehow imagined it !

A man with an ass dyno that guessed within 1.5 BHP on his first ever dyno day run where others went home that day with their tails between there legs by guessing miles out .

And my first ever car as a teenager , I said something was wrong with the engine , the old boy drove it he's ex civilian army vehicle electrician & fitter .

He said it's fine , I insisted , compression test revealed two cylinders were down, engine apart and two bent con rods .

How on earth did I know something was wrong .

I'm here to honestly share without affiliation and tell you what works and what doesn't .

At the moment I've bought something listed to fit by multiple sources and I'm finding it doesn't as it's for the American market , not that it can't be got around but UK sellers are incorrectly listing it and claim to have sold 100's but no actual reference nor picture worldwide .

Unlike the 100's of youtube reviews across all makes and models of cars worldwide concerning pedal boxes .

Now with pedal boxes there is no risk as a 30 day money back .

I will equally say something works to not working . I'm not here to tell tails .

Anyone here is welcome to try mine on their car , it's simple plug and play and that especially includes the doubters it will fit W204 , 212 , 207 and 166 .

 

[Blobcat]

As you’re so concerned about the safety issue I hope you’ve done the right thing and written to Mercedes Benz to highlight this serious issue.

Please update the forum with the response from Mercedes.

 

[Gazwould]

You don't get any sense from vehicle manufacturers look at the diesel emissions ecu update debacle .

Bareback Joe is another Alistair , V6Matty , Blobcat etc .

He has produced an article to disprove Sprint Booster , and whatever proof he's incorrect comes his way , he will not have it as it's his article .

What I posted earlier is actually from it .



"I personally didn’t believe the claims of change after looking at the specs and the voltage delivery statements.. but my brother purchased one for his 2008 Hilux 2.5L TDI, so I decided to check it out myself, after hearing his claims that the responsiveness felt more like the older cable driven throttles that had a 1:1 response to pedal travel.
For the test I by-passed the pedal to a direct on/off switch system to eliminate the possibility of different speeds of pedal press.
What I found was:
1. from off to full depression the DBW throttles seem to operate at a slower and smoother pace thru the operation of the butterfly with full pedal depression.
With the Throttle tuner (TT) at full setting, the butterfly opened visibly/noticeably faster.. not drastically but an increase none the less. (This ruled out the previous thought of a different driving style, or depressing the pedal faster would produce the same result, as the switch ruled out human responsiveness, making it obvious that another factor is present)
2. via datum measurements, I measured that at 100% pedal depression, the physical opening marker of the butterfly with out the Throttle tuner was considered to be 100%.
With the TT at full setting the butterfly opened consistently with an approximate 2 degree increase (doubt this was manufacturer intentional and may be due to ware over time and the faster delivery of the voltage causing a minor “flick” to become noticeable) but it was a slight increase none the less.
3. I then measured the vacuum & boost (2 different digital and analog liquid filled gauges), both al fully depressed pedals, and again it resulted in gains over the stock. It was evident that the ECU was aware of a change in the Air/Fuel ratio and compensated as it is supposed to.
4. for the Dyno test, I returned the pedal to its original foot controlled operation.
Stock and TT both delivered the same top end HP.. but the faster acceleration of the TT resulted and a torque delivery in a shorter timeframe (which is what most drivers would “feel” and refer to as the “ass dyno”). So yes, there is feel of increased G-force (mistakenly referred to as power) as the faster engine acceleration is in fact transferred to the wheels delivering improved propulsion.
The science of this item is more than the mere voltage curve from 0%-100%.
It includes the other calculations of the other factors like fluid dynamics, voltage drops, intentional retarding, losses and gains due friction, etc, etc, etc.
The system operates on a similar premise to the older cable tethered, “cam throttle” application used on motorcycle throttles that converted a 1/4 turn throttle twist into a 1/8 turn equivalent. The cam was tuned via shaping of the lobe (sometimes lobes plural) to deliver mechanically increased throttle/twist response ratios, typically tuned to sync with the powerbands of the specific motorcycles.
Now you can say that it in their head as well.. but then that would also mean 1/4 mile stats and data loggers help perpetuate the placebo effect.
So all in all :
No, it does not make the vehicle more powerful overall. The overall top end output remains the same. but..
Yes, the users do “feel” a difference in the operation of the vehicles.. thought it likely feels greater than it is.
Yes, the torque curve is brought on earlier (the “ass dyno” didn’t lie)
Yes, the claims are exaggerated (that’s just the marketing aspect)
Yes, results will vary from brand to brand, model to model and even car to car within the same brand/model due to tuning, etc.,
..but for low rpm acceleration, where most people want to get a bit of an increase (like pulling off from a stand-still stop, or pedaling to overtake) they will be pleased in most production vehicles and more so in higher tuned “weekend race vehicles”
I have since installed a similar device in my own 2008 Hilux of the same spec. and the results have been very similar.
Like with racing, every ounce of weight shed, every pound of boost gained, every advantage found, adds up.
Note:
Pedal switch tests were done over 3 days, 3 times a day, 3 runs each time.
Day 1 – Set up switches, Throttle tuner
Day 2 – 7am (first test), 12pm (second test), 8pm (third test) – Stock pedal tests first, followed by engaged TT
Day 3 – 7am (first test), 12pm (second test), 8pm (third test) – TT engaged pedal tests first, followed by stock pedal
Humidity was just about the same with about a 5-10 degree fluctuation for equivalent times.
32″ fan was directed into the engine bay for all tests.
Dyno test was done in 1 day.
Drove to dyno center 15 mins away.. 1hr rest.. temp check.. 3 runs stock pedal.. 1hr rest.. temp check for matching pre run temp.. 3 runs TT full setting engaged pedal."



Whatever bad reviews there are and some are faulty units , I'm not blind to faulty electrical goods , they are a nightmare washing machines etc .

What ever bad I'll be able to post more than double positive .

 

[Blobcat]

As you’re so concerned about the safety issue I hope you’ve done the right thing and written to Mercedes Benz to highlight this serious issue.

Please update the forum with the response from Mercedes.

@Gazwould

 

[Gazwould]

They crack is if you have a significant delay you'll get the best result .

No delay , don't buy .

Drive by wire have different delays some have none , a 2011 Q5 2.0 tdi S-tronic had pedal lag whereas a 2014 Q3 2.0 tdi S-tronic didn't .

 

[V6Matty]

Yawn

 

[Gazwould]

Yes that's what I used to do pulling out of junctions .

I suppose you think tyres are produced to the correct width and aspect ratio size on the sidewall too !

 

[V6Matty]

And yet I’ve never had this issue with blind junctions and a delay,
Must be something wrong with my car and how I drive

 

[Gazwould]

Different cars , different DBW delay , or no delay .

Good old drive by cable days .

 

[Rob76]

Chips belong in a tray with salt and vinegar
Put the money toward a proper map instead!

 

[Blobcat]

As you’re so concerned about the safety issue I hope you’ve done the right thing and written to Mercedes Benz to highlight this serious issue.

Please update the forum with the response from Mercedes.

@Gazwould

@Gazwould

No response?

 

[V6Matty]

Different cars , different DBW delay , or no delay .

Good old drive by cable days .

Same car, no delay

 

[Gazwould]

What car ?

 

[V6Matty]

S212 E350

 

[Gazwould]

I haven't got one .

 

[V6Matty]

Yes you have a 204 220cdi, that’s not what I’m saying though, I’ve driven my brothers 204 and 205 at the same junction as my 212 all the cars are the same with throttle response, no delay,

 

[garethbevan59]

I drive a CLS 250cdi and have recently got a remap and all I can say is wow, it's a different animal done by a proper tuning firm and now producing 250bhp and 550nm I've tried all the chips/boxes during my various car ownerships and nothing compares to a remap with an exception to one that was the brabus d6 I have fitted to my w211 sport other than this remap every day!!

Sent from my Pixel 3 using Tapatalk

 

[LostKiwi]

Different cars , different DBW delay , or no delay .

Good old drive by cable days .

You've clearly not driven a cammy car from a traffic junction. Talk about delay....
And that was using a Weber 45 DCOE carburettor with direct cable connection to the accelerator pedal.
Or a 129, where it sometimes sits and thinks about whether to set off in first or second (default is second).

 

[Gazwould]

Again not all Alister , you seem to have an issue with worldwide majority with anything I say.

I've 204 250 CDI.

Different cars and different engines produced at different times more so than ever can be different .

That's why I noticed a difference between the two 2.0 tdi S-tronic's .

Mercedes are very well known to have pedal lag , however it's not a blanket application .