Came across this article and thought to share it, entitled, “Mitsubishi Bozz Speed Lancer EVO VI”.

http://www.sportcompactcarweb.com/features/0105scc_evo/

Please note no AYC. The implication (to me) being that LSD may be preferable at high power levels driven hard.

Stir , stir, stir!

 

It takes a lot of tuning to get adjustable diffs to work properly. It's much easier to screw it up than to make an improvement.

If a person has the driving abilities and time to attend enough track events for trial and error as well as enjoyment, then adjustable diffs will serve a better purpose.

BTW, that's the old setup for the Bozz Speed Evo VI. It now makes less, but more useable, power. They also started developing an Evo VII that has adj. Cusco diffs. SCC took it out on the track and said it was an understeering nightmare!

Mark

 

Good point KK. Tuning an adjustable drive train is work for better men than I. I honestly have no inclination to be fiddling with the car as I drive. The knob on the dash in an E7 that controls the ACD probably spends all its life in one position.

What I have in mind is a simple mechanical LSD. I really don’t think I will ever replace the centre VCU, unless I break it, but will loose the AYC in favour of a Cusco unit.

The AYC and its function are dependent on the instructions fed to it by its controlling software. The original control module in my E5 had a software error that was responsible for the recall. In the E7 the addition of the ACD allows you to change the torque split between the front and rear wheels. This in turn allows you to vary the setup for different driving conditions. RalliArt have already developed a new module that promises improvement in control! My concern is that for the seriously power hungry the clutches in these units (AYC, ACD) will fail.

What a testament to the 4G63. This engine must be a source of amazement even to its designers. It can make more power than is useable, even in a platform as sound as the Lancer. Blows me away!

 

It is amazing but don't forget Toyota's 3S-GTE 2.0 L motor. It was the first Japanese motor to ever win the WRC and is capable of up to 900 hp with stock internals. I had it in my 1988 All Trac (GT-Four for those of you in Europe) and it's still going strong. They used it in the 2nd Gen MR2 and in all of Toyota's Rally cars including the Corolla WRC. It is still being used in all of Toyota's JTCC Supra's and MR-S's. All of this before the Evo even existed.

 

900 HP on stock internals! That is incredible!

Where did you come across that info? This was a production engine built on an assembly line? I must say that is pretty hard to conceive. Wow!

 

That's 900 at the fly, right??

 

For your viewing pleasure!

AYC / LSD

Yeah, I know it's an add. Still sweet.

 

The weight gain due to the AYC unit is approximately 38.5 lbs.