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APS & UniChip modifications


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  • I see red
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All,

Bit of a beginner when I comes to things mechanical.

Please could someone explain what is the difference between rear wheel KW and engine quoted KW.

What sort of performance improvements would the APS system give (would it be acceleration, top end , mid range etc)

How much would this cost ?

What is involved ?

What about the warranty

Thanks

Engine or flywheel kw is always going to be around 30% more (figure can vary from car to car) than rear wheel kw due to power loss through the gearbox, tailshaft and diff. Also, just to confuse things more, different dynos on different days will give different readings. There are also different "modes" that a dyno can run in, the example above is in "shootout" mode. No sure exactly what that is but I believe it tends to give favourable readings whereas a dyno in another mode can give a lower readout. SOmeone else here can probably give you a better explanation of this. Dyno figures should only be used as a rough guide IMO.

As for warranty...if you blew your gearbox or diff and Ford knew you had this Unichip they most likely wouldn't honour it. There are different stories getting around, some say if you remove the chip before it goes for service then Ford will never know, other stories suggest Ford can plug their computers into the car's computers and it will tell all.

As for cost, no idea! Contact Unichip and ask them.

Not sure exactly what is involved, I think they just plug this chip thing into the car computer and then maybe dyno tune to suit. Again, contact Unichip and ask them.

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Guest DZ.
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that's awesome love the gain! :D

User Posted Image

So much for turbo lag! Check out the torque curve (Line) and power curve!

Glad to see that APS have done their thing of maintaining the driveability - the peak torque must be up to 500NM+ now.

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Guest esky
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The dyno graph looks nice, but I have a few questions.

How the unichip handle the fly by wire?

Are the cams static? Or still dual VCT

How does it deal with the 2 pulses sent in tandem to trigger the injectors?

How does it deal with the torque drop on full throttle gear upshifts?

You guys are one of the first, so well done.

cheers

esky

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  • SLOJAM, Gone but not forgotten
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Just another thing. You sure it isn't 30kw gain??

Still a great effort!

Fair point in terms of max before mod Vs max after, but their claim is technically correct given the gain is stated based on the same place/conditions on the dyno graph.

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Guest esky
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Just another thing. You sure it isn't 30kw gain??

Still a great effort!

Fair point in terms of max before mod Vs max after, but their claim is technically correct given the gain is stated based on the same place/conditions on the dyno graph.

If you were the buyer would you like to know the technical gain or the actual gain?

Still, 30rwkw is a great effort. And I guess there is more to come from APS.

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  • Toughest BA Turbo
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People,

Don't get too carried away with this graph.

It does not reveal if the boost has been changed, or the extent to which it has changed; the APS web page says that the "boost maps" have been optimized, whatever that means.

If boost has not been altered at all, then the result is pretty good .... it may be mainly a result of leaning out the mixtures if the factory program runs on the rich side.

The main problem I have with the Unichip is where all the wires to your ecu get cut, then resoldered to form the connection to the Unichip unit. I was horrified when I pulled a Unichip out of one of my cars. I would be very reluctant to touch the Unichip if this practice is continued.

Also, be wary of any published graphs where the y axis does not start at zero. The resulting graph does make results look much better than they actually are.

Brian

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