Focus RS
Jan 27, 2016, 07:47 AM
#2341
The UK guys have known about the AYC shortcomings for years, because they have had AYC for years before us.
I have personal experience with the shortcomings of AYC with added power and grip on the race track from supporting Time Attack and track day Evo 10's over the years.
With added grip and a good amount of power, the AYC starts doing funky things.
Ryan Gates was one of the first to acknowledge this in the states. I remember the day I discussed it with him in the paddocks.
But you know, the Evo is perfect and better then all the cars.
Jan 27, 2016, 08:00 AM
#2343
EvoM Guru
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Jan 27, 2016, 08:04 AM
#2346
Evolving Member
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Join Date: May 2012
Location: Tampa FL via Kingson JA
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good news!!
that's mean they will have proper mechanical replacements for the stock awd system - ABS etc!
PS very few rally cars run 30 never mind 40 PSI. In fact I know maybe 2 or 3 which does 32 34 PSI
Those are the factory teams. I am running 23 -24 peak boost which is mostly if its hits for a sec or two. And I am still making 315 whp and 480 wtq
we do a lots of pedal to the metal , but the boost drops off very fast, it wont matter you are on it. Its just a nature of the restricted engine which has 34 mm straw to suck the air in
that's mean they will have proper mechanical replacements for the stock awd system - ABS etc!
PS very few rally cars run 30 never mind 40 PSI. In fact I know maybe 2 or 3 which does 32 34 PSI
Those are the factory teams. I am running 23 -24 peak boost which is mostly if its hits for a sec or two. And I am still making 315 whp and 480 wtq
we do a lots of pedal to the metal , but the boost drops off very fast, it wont matter you are on it. Its just a nature of the restricted engine which has 34 mm straw to suck the air in We all know how Toyota got past that lol
Jan 27, 2016, 09:34 AM
#2348
I've done it to my 05. It's just less trouble and weight, don't have to worry about the pump failing, etc. I've never noticed/used it so an 03 transfercase was cheaper and lighter...I sold the ACD case to recoup some money. My motor/tranny/case were already out of the car though. To do all this simply to change t-cases would be pointless I think. I only did it because everything was already out of the car.
Non ACD with the helical front LSD is the way to go.
Welding=bad in our cars, DSMs are different animals.
The White Evo, Lukes, Mine, Jakes, BigJesse's, etc. all use the 04 RS "style" case. Its weight reduction and in my opinion the car handles better since the power application is more predictable. My car definitely doesnt push as bad now that it is non-ACD.
Welding=bad in our cars, DSMs are different animals.
The White Evo, Lukes, Mine, Jakes, BigJesse's, etc. all use the 04 RS "style" case. Its weight reduction and in my opinion the car handles better since the power application is more predictable. My car definitely doesnt push as bad now that it is non-ACD.
Jan 27, 2016, 09:36 AM
#2349
disappointing to here these cars may be limited production for the states. could be simply sales tactics for first year. but would suck if its truely going to be limited.
also sucks if rear end and clutches are maxed in stock form. pretty sure this car has no center diff. so installing normal rear diff would be complete no no. that would be like driving a welded centerdiff in the early AWD cars. sucks for a daily. tires have to be EXACTLY same diameter. which only lasts for a couple hundred miles at best. so unless you plan to rotate tires every 100 miles you would be screwed. especially with what these tires cost
also sucks if rear end and clutches are maxed in stock form. pretty sure this car has no center diff. so installing normal rear diff would be complete no no. that would be like driving a welded centerdiff in the early AWD cars. sucks for a daily. tires have to be EXACTLY same diameter. which only lasts for a couple hundred miles at best. so unless you plan to rotate tires every 100 miles you would be screwed. especially with what these tires cost
Jan 27, 2016, 09:52 AM
#2350
You said high horsepower track use. Apparently you meant dragstrip usage. Unmodified (sans clutch) 05-15 ACD Evo drivetrains can handle 500whp on a racetrack without problems.
You risk breaking any drivetrain with high traction and torque if you launch hard.
Back on topic and per the RS AWD manufacturer, the power from extra modifications all goes to the front wheels. I'd assume it'll be really reliable, and that limp mode they're experiencing on the test cars is protecting them from real damage. Probably run reliably for years that way. Might not be the best canvas for big power, but the aftermarket will answer that for us very quickly.
Jan 27, 2016, 10:03 AM
#2352
When JohnBradley recommends a Non ACD with the helical front LSD, I listen.
Jan 27, 2016, 10:07 AM
#2353
I am no expert. But I do know a lot of people prefer the non-ACD setup. ACD is more complex and has more parts that DO sometimes fail. https://www.evolutionm.net/forums/ev...d-problem.html
When JohnBradley recommends a Non ACD with the helical front LSD, I listen.
When JohnBradley recommends a Non ACD with the helical front LSD, I listen.
Jan 27, 2016, 10:09 AM
#2355
I am no expert. But I do know a lot of people prefer the non-ACD setup. ACD is more complex and has more parts that DO sometimes fail. https://www.evolutionm.net/forums/ev...d-problem.html
When JohnBradley recommends a Non ACD with the helical front LSD, I listen.
When JohnBradley recommends a Non ACD with the helical front LSD, I listen.
I've had Evos for the past 12 years. Never a driveline failure.