Originally Posted by tscompusa

Its also easy to make the flash cable to program your ECU yourself. you just run a wire up into it.

I would be willing to supply 6 map roms all day for $150 for DIY people.

Originally Posted by alleggerita

Win ... win ... win. This has to be one of the most underrated mods. Biggest difference to anything I have done on the car. No downsides and easy to do and cheap to boot. IMO much superior to an RSB.

Does not make the car stiffer ... no bumpsteer unlike spring or coilovers ... no more noise. Just less understeer ... better steering and turn-in ... better balance. If you go to aggressive there might be a little bit of chassis wind-up but I am sure a good tuner can avoid that ...

And cycling the ACD pump a bit more is not gonna break it ... it is likely to die from corrosion long before.

If you like driving this really changes the car ... from FWD feel to AWD/RWD feel. It dials out the trailing throttle understeer perfectly. For racing and if you are full on it, a 12-plate may make more sense ... but for street driving my first choice for any mod bar none would be an ACD flash ... and if you track why not both flash and 12-plate ....

Originally Posted by kyoo

good points

took my car out for autox yesterday, car is an absolute blast. it's hard to describe it, the car just wants to rotate on lift, you just feel the back end give a little more slip angle. very happy with how the car is behaving, big thanks to English Racing for making it happen! I opted to receive a more "mild" flash, and put the sway bar I have on the middle setting. Just love how the car behaves now, I used to remember it being such a pain at autox, now I'm actually enjoying myself

Originally Posted by kaj

tuning the ACD helped oversteer on deceleration? how does that happen?

Originally Posted by kyoo

couldn't tell you HOW, maybe they make it totally open on throttle off or something IDK - lots of people documenting off throttle behavior with the ACD tune though - https://www.evolutionm.net/forums/mo...l#post11473644

for me, off throttle behavior was the exact thing I wanted an ACD tune to achieve for our non-AYC cars. AYC seems to do it through rear diff magic, and a good ACD tune will do it through center diff magic. For me, I wanted the ACD tune to handle off throttle behavior and the rear diff to handle on throttle behavior. The ACD tune impacts both regardless. Very happy with where the car is right now.

Originally Posted by tscompusa

Because you can control lock based on TPS %, speed, steering angle, etc and many other things.

Originally Posted by tscompusa

Heres whats inside the rom to give you a idea of its major things that make the car feel how people are experiencing it differently:

This is just a snippet from my 6 map rom.





so you see

1. throttle position vs vehicle speed
2. front / rear speed difference vs vehicle speed
3. steering angle vs vehicle speed

Should make more sense now how it does what it does.

Originally Posted by deeman101

DIY how-to already exists:

https://www.evolutionm.net/forums/ev...evo-8-9-a.html