[Jackygor]

I was searching a bit on wiki and on this forum but I couldn't find how much torque the evo x can distribute between the 4 wheels. The closest thing I found so far is in this article from car and driver...

The Mitsubishi, on the other hand, never sends the majority of engine torque to the rear axle. Instead, it can send all the engine torque to the front wheels or 50 percent of it (using an electrohydraulic clutch on the center diff). So the Evo varies the front-to-rear torque split between 100/0 and 50/50. In addition to the yaw-rate and throttle-position sensors, the Evo has a steering-wheel-angle sensor that also provides the computer with information.

That was about the evo 9. So I guess evo x should be around the same?

Also, what makes a car FWD biased or RWD biased?

 

[shadywade]

ok im not sure the proper term but its the distribution of torque between the front and rear. if its 50/50 then the theres a even amount of torque running to the front and rear axels. it differs depending on what the cpu thinks is necessary for traction
or with the wrx sti subaru(they understear) its 70/30, 70 being front axel torque wich would be front biased. 30/70 would be rear biased

i cant remember where i read it but i think i can safely yes the distribution is the same on the x

 

[GAmbrose]

Well FWD cars tend to understeer, and the past Evo's have always tended to oversteer and in one of the road tests for the Exo X, the guy said it drives like a Rear Wheel Drive car.

I have no data to back that up though.

Gary A

 

[Gumbö]

Im sure I read somewhere that the bias on the X is towards the rear. Cant for the life of me find the article now though.

 

[qubit]

The main distinction between the two is the layout of the engine.

a FWD-biased AWD car has a transversely mounted engine. Just like a FWD car. a RWD-biased AWD system has the engine mounted like a rwd car (cylinders are lined up in a row).

The evo X is a transversely mounted, awd car. it can supply UP to 50% of the torque to the rear wheels. So it is technically a fwd-biased car. However, the s-awc system makes it drive like a rear wheel drive car, imo.

 

[EzeE1o]

maybe it depends on the car its based on? regular lancer is fwd, so its 4wd sys is fwd bias...other side is the g35 awd or a 4wd 3 series, i would guess they are more rwd bias

 

[Kooldino]

The main distinction between the two is the layout of the engine.

a FWD-biased AWD car has a transversely mounted engine. Just like a FWD car. a RWD-biased AWD system has the engine mounted like a rwd car (cylinders are lined up in a row).

The evo X is a transversely mounted, awd car. it can supply UP to 50% of the torque to the rear wheels. So it is technically a fwd-biased car. However, the s-awc system makes it drive like a rear wheel drive car, imo.

I never thought about this, but you may be right here.

 

[UnctrldRage]

I was searching a bit on wiki and on this forum but I couldn't find how much torque the evo x can distribute between the 4 wheels. The closest thing I found so far is in this article from car and driver...

That was about the evo 9. So I guess evo x should be around the same?

Also, what makes a car FWD biased or RWD biased?

I havent found any biased drivetrain layout on the EVO X but I'm pretty sure that it will absolutely not be 100/0 otherwise the AYC is no longer working so with that said I imagine 60/40 to 40/60 biased adjustment....70/30 and 30/70 if they really wanted to push it

 

[SiC]

FWD based AWD = transversely mounted front engine (Evo)
RWD based AWD = longitudinal mounted front engine (GTR & Imp)

 

[UnctrldRage]

FWD based AWD = transversely mounted front engine (Evo)
RWD based AWD = longitudinal mounted front engine (GTR & Imp)

Hey sic do you happen to know how much biased front and rear the car has?

Whats your best guestimate by feel alone if you dont know for sure....Does it feel like a little is back there majority is back there and vice versa (There being the power)

 

[SiC]

Hey sic do you happen to know how much biased front and rear the car has?

Whats your best guestimate by feel alone if you dont know for sure....Does it feel like a little is back there majority is back there and vice versa (There being the power)

I don't have solid figures but I believe it is somewhere from F100/R0 to F50/R50. These figures will adjust depending on slip conditions and manual settings in the S-AWC (Tarmac/Gravel/Snow). Setting it on snow should give you a F50/R50 or somewhere near that figure and it will adjust itself according to the slip conditions.

 

[Jackygor]

Thanks SiC for your input.

 

[EVOXGSR]

Found this on mitsu's website in the latest news section...
The ACD splits torque up to 50:50 between the front and rear wheels using an electronically controlled hydraulic multi-plate clutch. With input from the S-AWC computer, ACD regulates the differential limiting action to optimize the front/rear wheel torque split. This obviously doesn't reveal what the default power split for cruising conditions is, but I don't think it would ever be 100/0 front/rear. I read somewhere, I don't remember where, that it's 80/20 f/r, and that it will split up to 50/50 f/r. Here is something, although not related, that I did not know until now and that I think is very interesting. To save weight in the tranny, they did this...

The 2008 Lancer Evolution GSR debuts a new 5-speed manual transmission (W5M6A) that provides a higher torque capacity than the 5-speed manual transmission used in the previous-generation Evolution models. The new transmission is also six millimeters shorter than the previous 5-speed and the same as the 6-speed used before.
Enabling higher torque capacity requires greater gear face width, which would then result in to a longer transmission case. To make the room needed without lengthening the case, the W5M6A manual deletes a dedicated Reverse gear. Instead, Reverse is provided by meshing 1st and 3rd gears, with synchromesh used to a synchronize the idler gears that mesh them.

 

[htotheizo]

FWD based AWD = transversely mounted front engine (Evo)
RWD based AWD = longitudinal mounted front engine (GTR & Imp)

the rwd based looks like it would have so much better balance.

 

[Jackygor]

the rwd based looks like it would have so much better balance.

I think it really depends on the AWD itself.

Evo has always been praised as one of the best handling car in its price segment.

 

[UnctrldRage]

I think it really depends on the AWD itself.

Evo has always been praised as one of the best handling car in its price segment.

Yeah but the layout and torque distrubition explains why it likes to hike the inside rear wheel in hard cornering and why this EVO X probably wants to....