X MR + SCCA auto-x = ??
"First, press the ASC button until the display registers that all ASC systems are Off. Select S-Sport mode, step on the brakes and then step on the accelerator. Once again the revs rise to 3000rpm - much like last time, and then wait a moment - the revs shoot up to a tick over 5000rpm."
http://mrtperformance.com.au/content/view/384/138/
5000rpms is still on the low side though... Remember how everyone was *****ing and moaning when Mitsu put the 5000rpm stationary limiter on the 2005+ cars?
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Joined: Oct 2007
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One of the guys in our local auto cross club writes for a magazine. He had an '08 STI and an '08 Evo MR out at the same event. The Evo destroyed the STI by nearly 3 seconds on a 63 second course. He felt the tires were better on the Evo and the STI understeered like a pig. I went with him for one run in the Evo. Honestly, I think he would have done a lot better in the GSR. There is NO launch, and the computer seemed to be confused as to which gear to be in after a rapid deceleration. Much like a traditional automatic would, actually. When you punch the gas after hard braking, it seemed like it was still in the higher gear and took a second to shift back to 1st or 2nd.
To be fair, the guy is not an AWD guy. He regularly runs a fairly well prepped S2000, so if he had more experience at rotating the non-AYC equipped STI, he likely could have made it much closer. But, I'm fairly sure he could have easily dropped another second with the GSR vs. the MR, based on the ride that I went with him, which happened to be his fastest run of they day.
That said, I think on a road course, the MR would be faster, just because the gear changes are more 'predictable'.
Here's the article.
http://www.canadiandriver.com/articl...versus-sti.htm
Edit: Should have said the guy hadn't figured out how to properly launch the MR.
To be fair, the guy is not an AWD guy. He regularly runs a fairly well prepped S2000, so if he had more experience at rotating the non-AYC equipped STI, he likely could have made it much closer. But, I'm fairly sure he could have easily dropped another second with the GSR vs. the MR, based on the ride that I went with him, which happened to be his fastest run of they day.
That said, I think on a road course, the MR would be faster, just because the gear changes are more 'predictable'.
Here's the article.
http://www.canadiandriver.com/articl...versus-sti.htm
Edit: Should have said the guy hadn't figured out how to properly launch the MR.
Well, I guess I found it:
"First, press the ASC button until the display registers that all ASC systems are Off. Select S-Sport mode, step on the brakes and then step on the accelerator. Once again the revs rise to 3000rpm - much like last time, and then wait a moment - the revs shoot up to a tick over 5000rpm."
http://mrtperformance.com.au/content/view/384/138/
5000rpms is still on the low side though... Remember how everyone was *****ing and moaning when Mitsu put the 5000rpm stationary limiter on the 2005+ cars?
"First, press the ASC button until the display registers that all ASC systems are Off. Select S-Sport mode, step on the brakes and then step on the accelerator. Once again the revs rise to 3000rpm - much like last time, and then wait a moment - the revs shoot up to a tick over 5000rpm."
http://mrtperformance.com.au/content/view/384/138/
5000rpms is still on the low side though... Remember how everyone was *****ing and moaning when Mitsu put the 5000rpm stationary limiter on the 2005+ cars?
Once the gearbox heats up .. it will not let you launch anymore ..
It happens after the 1st or 2nd launch .. It will release and free rev to redline .. ie neutral gear in D
Well, I guess I found it:
"First, press the ASC button until the display registers that all ASC systems are Off. Select S-Sport mode, step on the brakes and then step on the accelerator. Once again the revs rise to 3000rpm - much like last time, and then wait a moment - the revs shoot up to a tick over 5000rpm."
http://mrtperformance.com.au/content/view/384/138/
5000rpms is still on the low side though... Remember how everyone was *****ing and moaning when Mitsu put the 5000rpm stationary limiter on the 2005+ cars?
"First, press the ASC button until the display registers that all ASC systems are Off. Select S-Sport mode, step on the brakes and then step on the accelerator. Once again the revs rise to 3000rpm - much like last time, and then wait a moment - the revs shoot up to a tick over 5000rpm."
http://mrtperformance.com.au/content/view/384/138/
5000rpms is still on the low side though... Remember how everyone was *****ing and moaning when Mitsu put the 5000rpm stationary limiter on the 2005+ cars?
i've lived with it for 104k miles so far on my IX MR with no problems. had no problems running 12's in the car when it was stock with the limiter.
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Joined: Jul 2005
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From: MA
I autox'd the mr a few weeks back, there were two of us driving.
We had 13 total runs (1 re-run) with 70 - 71 second best runs for us on street tires in AS.
We ran the transmission in s-sport and had no issues with it not up shifting or down shifting when it should. We stopped counting how many shifts it made both up and down, and just concentrated on driving the car and trying to figure out how the different settings for example the ASC, changed the characteristics of the car.
In summary, the transmission was great, the brakes were great, they bit very hard on initial application, much better in comparison to my VIII that I also ran in AS when I had it.
The car rotated much better than we thought it would, it acceleration was seamless between gear changes and we were going much faster than we expected initially as we both missed braking points during the morning heat, the car was just faster as it shifted to third in sections of the course where we would usually be on the limiter in 2nd.
We left the ASC setup to the first button press for about 75% of our runs. But it is still too early to say that this is where I'd run it all of the time due to only having 6 total runs with the car and trying to figure out all of the other bits at the same time, i.e. sst, brakes, asc.... It was a fun day flogging it and getting good feedback from it.
The tires were not as good as the VIII's and IX's stock rubber but that will change when I get some race rubber under the car.
The seats were great, didn't have to brace as much in comparison to the VIII, I was a bit more snug in the seat, the head rest portion of it was a bit of a pain in that where you set the seat position with your helmet off was not optimal when you put your helmet on unless you had a map of the course taped to your knees
Here is some of what my friend who co-drove had for feedback:
"the SST managed - mid-turn, full throttle, it would shift up without affecting the car in any way, trail braking, turning, dropping down a gear, all at the same time, without the car even noticing the gear change - the only criticism I can think of is that you can't use a quick throttle lift to xfr weight as easily, however a gentle brush of the brake pedal (#3 above notwithstanding) accomplishes the same"
The #3 he has in parentheses pertains to the brakes:
"3) A double-edged sword - the brakes are both stunning and extremely sensitive."
We had 13 total runs (1 re-run) with 70 - 71 second best runs for us on street tires in AS.
We ran the transmission in s-sport and had no issues with it not up shifting or down shifting when it should. We stopped counting how many shifts it made both up and down, and just concentrated on driving the car and trying to figure out how the different settings for example the ASC, changed the characteristics of the car.
In summary, the transmission was great, the brakes were great, they bit very hard on initial application, much better in comparison to my VIII that I also ran in AS when I had it.
The car rotated much better than we thought it would, it acceleration was seamless between gear changes and we were going much faster than we expected initially as we both missed braking points during the morning heat, the car was just faster as it shifted to third in sections of the course where we would usually be on the limiter in 2nd.
We left the ASC setup to the first button press for about 75% of our runs. But it is still too early to say that this is where I'd run it all of the time due to only having 6 total runs with the car and trying to figure out all of the other bits at the same time, i.e. sst, brakes, asc.... It was a fun day flogging it and getting good feedback from it.
The tires were not as good as the VIII's and IX's stock rubber but that will change when I get some race rubber under the car.
The seats were great, didn't have to brace as much in comparison to the VIII, I was a bit more snug in the seat, the head rest portion of it was a bit of a pain in that where you set the seat position with your helmet off was not optimal when you put your helmet on unless you had a map of the course taped to your knees
Here is some of what my friend who co-drove had for feedback:
"the SST managed - mid-turn, full throttle, it would shift up without affecting the car in any way, trail braking, turning, dropping down a gear, all at the same time, without the car even noticing the gear change - the only criticism I can think of is that you can't use a quick throttle lift to xfr weight as easily, however a gentle brush of the brake pedal (#3 above notwithstanding) accomplishes the same"
The #3 he has in parentheses pertains to the brakes:
"3) A double-edged sword - the brakes are both stunning and extremely sensitive."
thanks guys, interesting read(s)
Gotta co-worker moving back to vegas next week who owns a X MR who'll probably let me flog his car to come up with my own conclusions.
Felt a little too guilty to explore the technical limits of the car when I test drove it last weekend.
again, thanks your input is greatly appreciated.
Gotta co-worker moving back to vegas next week who owns a X MR who'll probably let me flog his car to come up with my own conclusions.
Felt a little too guilty to explore the technical limits of the car when I test drove it last weekend.
again, thanks your input is greatly appreciated.
Also,
trying to logically digest all the technology put into the X's SAYC and ACD, what if any concerns are there about the ability of these systems to blend their "programming" with the addition of ultra high grip "r" compound tires. Tire of choice the Kumho V710.
I'm a little suspicious that the algorithms used to affect the direction the vehicle is going could be negatively affected with such a large change in grip. Treadwear on a V710 is 30 vs. treadwear on the factory tire is somewhere in the 150 to 200 range (I think)
any concerns out there?
or,
any one using r-comps yet?
trying to logically digest all the technology put into the X's SAYC and ACD, what if any concerns are there about the ability of these systems to blend their "programming" with the addition of ultra high grip "r" compound tires. Tire of choice the Kumho V710.
I'm a little suspicious that the algorithms used to affect the direction the vehicle is going could be negatively affected with such a large change in grip. Treadwear on a V710 is 30 vs. treadwear on the factory tire is somewhere in the 150 to 200 range (I think)
any concerns out there?
or,
any one using r-comps yet?
i don't see why that would be a problem. the ACD system on the IX's ran fine with any grip level. Also, EVO's all over the world have been running AYC and ACD for years with no problems. the system automatically adjusts according to readings from all the sensors. it'll sense the available grip levels and make adjustments accordingly.
for example...lets say you take the car out on street tires and at a given speed, and given steering input in a corner one of the wheels loses grip and it has to transfer some power to another wheel. if you go out afterward with R comps on with everything else being equal, speed, steering input, etc, and that wheel doesn't slip anymore, the computer's not going to stop and say "wait a minute, that wheel is supposed to be slipping, what do i do now????" it's just not going to do anything because nothing will need to be done because that wheel will still have grip.
for example...lets say you take the car out on street tires and at a given speed, and given steering input in a corner one of the wheels loses grip and it has to transfer some power to another wheel. if you go out afterward with R comps on with everything else being equal, speed, steering input, etc, and that wheel doesn't slip anymore, the computer's not going to stop and say "wait a minute, that wheel is supposed to be slipping, what do i do now????" it's just not going to do anything because nothing will need to be done because that wheel will still have grip.
