2008 STU discussion
If you look at the curb weights of the EVO 9s,
RS = 3219lb
GSR = 3274lb
MR = 3285lb
Between the regular MR and GSR that is a difference of 11lbs. Between the RS and MR its a difference of 66lbs. Between the RS and the GSR its a difference of 55lb. On a 3200lb chasis, its upto you to decide if that makes significant difference. Lose 55-66lbs in exchange for EBD-ABS, power windows, power doorlocks, etc ...
The fastest EVO @ the 07 Nats was an EVO9 MR which is the "heaviest" of the bunch.
At times I've had a 150lb passenger ride with me and I've been able to go faster around a course but thats more likely due my inconsistency as driver. Personally, I wouldn't give up creature comforts between the different models, although every little bit counts.
RS = 3219lb
GSR = 3274lb
MR = 3285lb
Between the regular MR and GSR that is a difference of 11lbs. Between the RS and MR its a difference of 66lbs. Between the RS and the GSR its a difference of 55lb. On a 3200lb chasis, its upto you to decide if that makes significant difference. Lose 55-66lbs in exchange for EBD-ABS, power windows, power doorlocks, etc ...
The fastest EVO @ the 07 Nats was an EVO9 MR which is the "heaviest" of the bunch.
At times I've had a 150lb passenger ride with me and I've been able to go faster around a course but thats more likely due my inconsistency as driver. Personally, I wouldn't give up creature comforts between the different models, although every little bit counts.
Having power locks and windows, and HID in a DD is nice and I would want to keep those, as well as the ABS since I drive in the ice and snow a lot. The sunroof, additional sound deadening, and other non-trim-specific heavy items (like the IC sprayer and rear wiper) I could do without too if removing them were allowed, but those are no handicap if everyone else has them.
Just a warning, if you drive it in the ice and snow, you may want to swap out any performance brake pads. When I was living in Virginia, I didn't have any trouble with braking in ice/snow when I had the stock pads -- but with upgraded pads (in my case, Porterfield R4S), I found that I could actually lock up all four tires on icy roads. And the ABS won't help you if you lock up all four (obviously, it thinks the car is stopped).
That is really good to know, thanks. I think that actually may have happened to me long ago when I go caught in a freak spring storm in my 240sx with Hawk HP+ in Z32 brakes with ABS.
Just a warning, if you drive it in the ice and snow, you may want to swap out any performance brake pads. When I was living in Virginia, I didn't have any trouble with braking in ice/snow when I had the stock pads -- but with upgraded pads (in my case, Porterfield R4S), I found that I could actually lock up all four tires on icy roads. And the ABS won't help you if you lock up all four (obviously, it thinks the car is stopped).
I used to do that when I first learned how to drive stick but after learning how to heel and toe, I don't press down on the clutch unless I intend to shift gears.
If you lock up all four tires with the car in gear, that would stall the engine -- and that didn't happen.I can't be sure whether the transmission was in neutral (wheels connected to layshaft only), or whether the transmission was in gear with the clutch pedal depressed (wheels connected all the way to the clutch disc). It happened a long time ago.
Still, given the choice between running competition pads or OEM pads in winter conditions, I'd do the OEM pads -- especially given how easy it is to swap out pads on the Evo (you don't even have to unbolt the caliper).
Quote:
Originally Posted by hokiruu View Post
Boardkat, many would probably say that the RS is the trim to have if you are comfortable without ABS.
I think it's more complicated than just simply ABS. The RS lacks EBD (Electronic Brake Distribution), which does a lot more than just detecting (and reacting to) lockup:
Quote:
The EBD system (standard on the Lancer Evolution, not available on the Evolution RS) utilizes computer control to help ensure optimal distribution of braking forces. In addition, this system governs rear brake forces to help reduce temperature build-up in the front brakes under hard braking conditions. Independent control of the left and right rear brakes also helps the vehicle realize better braking balance during cornering.
The Lancer Evolution's Sport ABS offers four-wheel independent control to help optimize the braking actions from each wheel and help maintain control and stability. The system utilizes a steering wheel angle sensor, longitudinal and lateral G-sensors, and four-wheel speed sensors that provide the Sport ABS computer with precise data to help the processor determine how to regulate the minute, millisecond reactions of lightweight hydraulic actuators that control braking loads.
So when you choose the RS, you're not just risking locking up the brakes if you hit the pedal too hard -- you're giving up a sophisticated active four-wheel brake balance computer.
Originally Posted by hokiruu View Post
Boardkat, many would probably say that the RS is the trim to have if you are comfortable without ABS.
I think it's more complicated than just simply ABS. The RS lacks EBD (Electronic Brake Distribution), which does a lot more than just detecting (and reacting to) lockup:
Quote:
The EBD system (standard on the Lancer Evolution, not available on the Evolution RS) utilizes computer control to help ensure optimal distribution of braking forces. In addition, this system governs rear brake forces to help reduce temperature build-up in the front brakes under hard braking conditions. Independent control of the left and right rear brakes also helps the vehicle realize better braking balance during cornering.
The Lancer Evolution's Sport ABS offers four-wheel independent control to help optimize the braking actions from each wheel and help maintain control and stability. The system utilizes a steering wheel angle sensor, longitudinal and lateral G-sensors, and four-wheel speed sensors that provide the Sport ABS computer with precise data to help the processor determine how to regulate the minute, millisecond reactions of lightweight hydraulic actuators that control braking loads.
So when you choose the RS, you're not just risking locking up the brakes if you hit the pedal too hard -- you're giving up a sophisticated active four-wheel brake balance computer.
https://www.evolutionm.net/forums/sh...d.php?t=247006
I still think there is time to be gained by optimizing a computer controlled EBD system for race rubber and race suspension . . .
i just jumped out of a car with no ABS so i'm familiar with threshold breaking - mind you, the spec v didn't have QUITE as much power! 
didn't realize corey was in an SE - but i'm sure he'd be just as fast no matter what trim he had!
since i can't yet dedicate a car to autox/track, it's going to have to pull double duty. guess i'll take the weight penalty, but be ultimately happier in a GSR-SE. thanks for everybody's input!
as an aside, dave, are you going to be in topeka? i'll be sure to look you up [i'll be rolling in DS/ITR/53].

didn't realize corey was in an SE - but i'm sure he'd be just as fast no matter what trim he had!
since i can't yet dedicate a car to autox/track, it's going to have to pull double duty. guess i'll take the weight penalty, but be ultimately happier in a GSR-SE. thanks for everybody's input!
as an aside, dave, are you going to be in topeka? i'll be sure to look you up [i'll be rolling in DS/ITR/53].
i think this is the year that an EVO finally takes the cake nats will be my first event in the ITR, so i'm sure to have a blast, for better or for worse!!
Last edited by boardkat; Jul 9, 2008 at 09:29 PM.
Any high-level thoughts on set-up for concrete vs asphalt? I just entered the Wendover Pro and while I have run down on that cheese grater surface, it's never been in on street tires or an Evo. In the past I used to run everything a bit stiffer, but if there's anything else that'd be great to hear.
Thanks in advance
Tim
Thanks in advance
Tim
I always had trouble getting my '03 to rotate on concrete. I was having to run some stupid high pressures in the rear and even then it was still push city. Probably not as bad with a IX but you'll probably want to be more aggressive on your pressures and alignment.
Pretty much every car I've driven on good concrete versus asphalt needs a stiffer and looser setup. I used to run about 1/8" toe out in the rear of my Neon on asphalt, but needed 1/2" toe to make it work on concrete. A lot depends on how bumpy it is too, but generally, stiffer rebound and a more agressive alignment.
Pretty much every car I've driven on good concrete versus asphalt needs a stiffer and looser setup. I used to run about 1/8" toe out in the rear of my Neon on asphalt, but needed 1/2" toe to make it work on concrete. A lot depends on how bumpy it is too, but generally, stiffer rebound and a more agressive alignment.
Wendover is like no other surface most will see
it's concrete from WWII w/lots of bumps from the expansion joints moving over the years. Having said that, it's also a huge surface, so I suspect a top of 2nd and/or 3 gear course set.Really fun stuff when combined w/the Prosolo format


