Joined: 07 Apr 2005 Posts: 1794 Location: Good question!
Posted: Sun Jan 18, 2009 4:31 pm Post subject: My favorite Evos at play!
My favorite Evos at play!... Just ah lil' somethin' to brighten up your day...
These clips were the main reason I chose an RS / RS2 instead of a GSR.
They show why the front LSD is the most important part, if you want to reduce understeer.
Everything else after that is just icing on the cake!
Quote:
1) GSR (stock) with rear AYC + No front LSD = UNDERSTEER!
2) GSR + rear AYC + front LSD = less Understeer.
3) RS + rear LSD + front LSD + suspension upgrade = HEAVEN!
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Feel free to add more clips. _________________ Walk softly... and carry a BIG stick!
Last edited by Sanctifier on Fri May 31, 2013 9:13 pm; edited 5 times in total
Joined: 07 Apr 2005 Posts: 1794 Location: Good question!
Posted: Sun Jan 18, 2009 6:02 pm Post subject:
Didn't expect a reply so quickly, plex.
Didn't even have time to finish the "edit."
Got any other Evo clips? _________________ Walk softly... and carry a BIG stick!
How the hell they get that evo in the gymkhana (the white vii/viii) to rotate around that cone so!!!!!????????
That is the main trouble I am having right now, terrible understeer on sharp corners. Wide sweeping corners no problem, AYC sorts itself out, but make a quick turn around a cone and is just understeer and slide away.... _________________ Bleh
Joined: 07 Apr 2005 Posts: 1794 Location: Good question!
Posted: Tue Feb 10, 2009 5:52 pm Post subject:
Is your Evo a "GSR" baldhead? Evo GSRs have an "open" front diff. They don't have a
front helical LSD...RS and MR models do. That's your biggest reason right there.
Maybe he's using a fly-off hand-brake to help rotate the car too.
IMHO other reasons may be...
Sanctifier wrote:
Suspension tweeks (BIG rear anti-roll bar???)
ALIGNMENT... Rear "toe" setting.
1" NARROWER rear rims... (NB: While still using the identical front & rear tyre size.)
Higher rear spring rate.
This might help...
Sanctifier wrote:
This is a Chart (incomplete) that I'm compiling. It might help for basic handling and set-up issues...
Joined: 07 Apr 2005 Posts: 1794 Location: Good question!
Posted: Wed Feb 11, 2009 8:31 am Post subject:
Yup... now you understand why I rave about the lighter weight and better handling of the E6 RS.
The first two clips (top of page) show how a front helical LSD reduces understeer in an E6 GSR with AYC.
The third is an RS with front & rear LSD plus upgraded springs, dampers etc.
Add parts & mods from listing. That should help. RS/MR front LSDs are SCARCE though.
If you can't get an RS/MR front LSD, then one of these might help...
RaceLogic's Traction Control is used by RC Developments (UK) on their 900+ bhp E6.
Whiteline's Black Box for cars with OEM stability control.
Here's a clip...
Vids show a definate improvement. It's model specific so email Whiteline first.
Post feedback here when you get info from either Company please. Thanks. _________________ Walk softly... and carry a BIG stick!
Joined: 07 Apr 2005 Posts: 1794 Location: Good question!
Posted: Fri Mar 20, 2009 5:39 pm Post subject:
UPDATE: Seems that the RalliArt ACD ECU is a big step up for reducing understeer.
Details later...
UPDATE:Here's a review of the RalliArt ACD ECU in action...
Evolved Performance @ evolutionm.net wrote:
The new Ralliart diff (~ ACD) controller is a revelation!
One complaint that I have always had about the Evo has been my personal inability to click off consistent lap times. I have never been the absolute fastest driver in the groups I�ve run with, but I have always been able to be very, very consistent. Like turning laps within tenths of each other kind of consistent. Since I bought the Evo, I have been completely confounded by my inability to run a string of fast laps. I could always bang off one or two fast laps, but this usually resulted in having to push the car so hard that it would overheat the tires and brakes to the point where I couldn�t keep up that pace for a full session. The new diff controller makes the car easier to drive, with a lot less fighting the chassis and more consistency in the handling throughout a long run. This resulted in faster laps across the board.
The difference in feel between the stock diff controller and the Ralliart part (both running in Tarmac mode) is dramatic. With the stock ACD controller, corner entry would be fine (especially if you trail brake in), but the mid corner resulted in horrific understeer. Corner exit would be manageable as you got back on the throttle, as all 4 wheels would slide on the exit, but the exit speed would always be compromised by the mid-corner behavior of the car. To deal with the mid-corner behavior of the car, you could lift � which would actually usually increase understeer � or you could left foot brake, which would tighten up the angle of the car but would scrub speed. So, you inevitably enter the corner slower and build speed out (classic slow-in, fast-out), but even then the mid-corner behavior would be inconsistent. Gravel settings improved things slightly (especially for left foot braking), but it still isn�t right.
With the new diff controller in place, the behavior is completely different. In general, the car went from feeling like a front wheel drive car to feeling like a rear wheel drive car. Corner entry remained unchanged, with a slightly improved entry coming from more stability while trail braking. Mid-corner and corner exit are completely different. Rather than having to left foot brake to manage car position mid-corner, you can throttle steer the car! Lifting off throttle tightens the line, while adding in more throttle sets up a four wheel drift towards the outside of the corner. Very easy to manage without having to alternate throttle and brakes while sliding the car. On corner exit, the car tends more to traditional throttle-on understeer, but it feels like it has more overall grip as you add in more gas.
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