Friday, October 19, 2012

Improving Acceleration

The 8v, 1.4 engine coupled with the AL4 gearbox on the 206 makes it grossly underpowered. Nipping in and out of city traffic is almost impossible in this car. This car's pick up from standstill feels like forcing an Elephant to do a 100M sprint.

There are the commong things you can do to improve acceleration slightly, like changing the air filter, exhaust system, etc. But all this costs money. Today I'll share with you something simple to improve the car's acceleration. Best of all its free. The idea is to get the throttle body butterfly valve opened as much as possible when the accelerator is floored.

First step is to minimise any slack @ throttle cable. This is done by pulling out the retaining clip, then pulling the cable to the left as much as possible, then place the retaining clip back.


If you look at how the throttle body(TB) operates, you can see it how it stops when the accelerator pedal is floored. So the next step is to file down the stopper on the TB.



It would be good if you have an OBD2 reader attaced to the car. This is so that you can monitor the increase in the throttle position as you work on the car. Take your time and file it.


 
My initial Absolute Throttle Position was only 70.2%. Now it has increased to 78%. If you're wondering, I'm using this ELM327 device to connect to the car. You can buy it over the internet for less than RM100.

Now the car accelerates much better(of course with the accelerator floored) and improved top speed to, and most definately increased fuel consumption.

4 comments:

  1. Awesome tip :) Did you remove it completely or file just a bit? What software did you use with ELM327? I have ELM and 206 too but it shows only rpm and speed.

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    1. I just file off a bit. used the elm327 to read the throttle opening. Its now opened up to 83%. Try to install Torque. It will show more information from the ELM327

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  2. I have the same problem only show rpm i have the same engine with s2000 ecu. And elm327 v2.1 with torqe pro app
    What ecu u have

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    Replies
    1. I'm also using S2000 Ecu. Using Torque App, I get all readings without problems. You can see the sample data that i can read here foreverdeals.ecwid.com/sharer?ownerid=1589558&productid=17336928

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