ACD Reflashes Now Available!!!
Mar 10, 2009, 01:58 PM
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ACD Reflashes Now Available!!!
That is right ladies and gentlemen! the Gruppe-s ACD reflashes are now available! We will be offering 3 different reflashes as of now including a street, race/R comp, and a Rally/Gravel flash. Please Keep in mind you are really getting 3 flashes in 1 as each flash will change the characteristics of all 3 ACD settings!
For local customers the price will be $350 for a reflash of your choice! and if at anytime you wish to switch to another flash or return to stock we will do so for $100.
For non Local Customer's mail in reflashes can also be done. After purchasing a flash of your choice simply remove your stock ACD Unit, safely and securely package the unit to avoid shipping damage and ship the unit to us. We will reflash the unit within 24 hours of receiving it and we will ship the unit back the following day. The Price will be $360 for the reflash with 3 day shipping and $380 with next day shipping!
If you do not wish to have your car down for a few days, you have the option to pay a $500 Core Charge. $350 + $500 and we'll ship a pre-flashed unit, and once your original unit is received we will refund you the $500 core charge.
Reflashes can only be purchased via Phone order's. Please call us at (949)457-1234 x2 with any orders or questions!
Street: We can best describe this flash as "forgiving" with this unit there is an increased margin for error, giving the driver more confidence while allowing them to comfortably push the car to new limits. This reflash is the most mild improvement over stock, it is definitely a noticeable change but it will not be too aggressive for those looking to spend the majority of their time on the street and only a minor percentage at the track or in the Canyons. This reflash is primarily for those looking for a street able reflash that will offer an improvement over the stock unit's handling characteristics when you are engaged in any form of spirited driving. Last you will also notice a reduction in under steer as well as a lack of hesitation that the stock unit has when engaging the center differential.
3 Modes:
Tarmac- Circuit
Gravel- Sport
Snow- Wet Conditions
Race: This flash is designed with the track driver in mind and was designed as a racing reflash with aggressive locking characteristics for optimal grip and rotation. While this unit is primarily designed as a grip unit, with the more aggressive ACD settings will maximize the efficiency of the locking characteristic's of the center differential and will allow the car to rotate on command. We really wanted to offer a very high level of cornering stability while minimizing under steer and that is exactly what this flash will do. We do not recommend this flash for the faint hearted and it will be much less forgiving than the street unit but in turn will allow the car to rotate much more aggressively than both the stock unit and the Street reflash. The breakaway characteristics are optimized for sticky tires and best suited for R-Compound track tires. This Unit can be used on the street without issue just be aware that the differential engagement will be notably earlier than the stock and street unit.
3 Modes:
Tarmac- Optimized Circuit
Gravel- Sport
Snow- Wet Conditions
Rally: Last but certainly not least is the rally/gravel reflash. Although this flash is designed for Rally racing on gravel and really excels on loose surfaces when you apply a grip driving style, the locking characteristics of this flash provide an incredible amount of rotation. This flash will get loose on command and rotate the car through the application of power to the rear wheels. This can either be an excellent, or terrifying character trait depending on your skill level. This flash is very comfortable to drive hard and you can certainly tell that the car has more confident without traction, and when over steering and power sliding this flash really shines! Unlike the stock units tendency to under steer when pushed too hard, this unit will nearly completely cancel out all hints of under steer when driven properly. Another great factor of this flash is that it can even be utilized as a track flash if you are running wide or sticky r compound tires with excellent balance and neutral over steer tendencies.
3 Modes:
Tarmac- Light Gravel
Gravel- Heavy Gravel
Snow- Snow
We are so confident that you will be satisfied with the results we will be offering a money back guarantee if you decide you dislike the product within 7 days of the original purchase. So far we have not had a single complaint or return!
REVIEWS!
These are some of the other brands we carry, if you don't see what you're interested in give us a call we carry many other brands as well!
For local customers the price will be $350 for a reflash of your choice! and if at anytime you wish to switch to another flash or return to stock we will do so for $100.
For non Local Customer's mail in reflashes can also be done. After purchasing a flash of your choice simply remove your stock ACD Unit, safely and securely package the unit to avoid shipping damage and ship the unit to us. We will reflash the unit within 24 hours of receiving it and we will ship the unit back the following day. The Price will be $360 for the reflash with 3 day shipping and $380 with next day shipping!
If you do not wish to have your car down for a few days, you have the option to pay a $500 Core Charge. $350 + $500 and we'll ship a pre-flashed unit, and once your original unit is received we will refund you the $500 core charge.
Reflashes can only be purchased via Phone order's. Please call us at (949)457-1234 x2 with any orders or questions!
Street: We can best describe this flash as "forgiving" with this unit there is an increased margin for error, giving the driver more confidence while allowing them to comfortably push the car to new limits. This reflash is the most mild improvement over stock, it is definitely a noticeable change but it will not be too aggressive for those looking to spend the majority of their time on the street and only a minor percentage at the track or in the Canyons. This reflash is primarily for those looking for a street able reflash that will offer an improvement over the stock unit's handling characteristics when you are engaged in any form of spirited driving. Last you will also notice a reduction in under steer as well as a lack of hesitation that the stock unit has when engaging the center differential.
3 Modes:
Tarmac- Circuit
Gravel- Sport
Snow- Wet Conditions
Race: This flash is designed with the track driver in mind and was designed as a racing reflash with aggressive locking characteristics for optimal grip and rotation. While this unit is primarily designed as a grip unit, with the more aggressive ACD settings will maximize the efficiency of the locking characteristic's of the center differential and will allow the car to rotate on command. We really wanted to offer a very high level of cornering stability while minimizing under steer and that is exactly what this flash will do. We do not recommend this flash for the faint hearted and it will be much less forgiving than the street unit but in turn will allow the car to rotate much more aggressively than both the stock unit and the Street reflash. The breakaway characteristics are optimized for sticky tires and best suited for R-Compound track tires. This Unit can be used on the street without issue just be aware that the differential engagement will be notably earlier than the stock and street unit.
3 Modes:
Tarmac- Optimized Circuit
Gravel- Sport
Snow- Wet Conditions
Rally: Last but certainly not least is the rally/gravel reflash. Although this flash is designed for Rally racing on gravel and really excels on loose surfaces when you apply a grip driving style, the locking characteristics of this flash provide an incredible amount of rotation. This flash will get loose on command and rotate the car through the application of power to the rear wheels. This can either be an excellent, or terrifying character trait depending on your skill level. This flash is very comfortable to drive hard and you can certainly tell that the car has more confident without traction, and when over steering and power sliding this flash really shines! Unlike the stock units tendency to under steer when pushed too hard, this unit will nearly completely cancel out all hints of under steer when driven properly. Another great factor of this flash is that it can even be utilized as a track flash if you are running wide or sticky r compound tires with excellent balance and neutral over steer tendencies.
3 Modes:
Tarmac- Light Gravel
Gravel- Heavy Gravel
Snow- Snow
We are so confident that you will be satisfied with the results we will be offering a money back guarantee if you decide you dislike the product within 7 days of the original purchase. So far we have not had a single complaint or return!
REVIEWS!
alright guys, I finally got around to trying one of these things out at gruppe-s yesterday... I AM SOLD!!! I ended up buying the race unit on the spot and so far I couldn't be happier. These things really are incredible, it basically makes my 05 evo 8 feel like a 10 in terms or handling minus a hell of alot of weight 
I tried the street unit first and it was definitely better than stock but I am in love with the race flash. The car is a corner carving monster now, my drive home from gruppe-s yesterday was fun to say the least and my drive to work just got a hell of a lot better.
Thanks gruppe-s!!!!!!
I tried the street unit first and it was definitely better than stock but I am in love with the race flash. The car is a corner carving monster now, my drive home from gruppe-s yesterday was fun to say the least and my drive to work just got a hell of a lot better.Thanks gruppe-s!!!!!!
More review notes:
I drove the car tonight to a local EVO meet and noticed that the car feels more like a rear wheel drive vehicle... especially thru the turns. I do notice that the car is easier to rotate, and once you take that turn, point the steering wheel in the dirrection you want to go and shoot.
I would love to go to an open parking lot or to a local airfield and push the car harder and see how it reacts..
I drove the car tonight to a local EVO meet and noticed that the car feels more like a rear wheel drive vehicle... especially thru the turns. I do notice that the car is easier to rotate, and once you take that turn, point the steering wheel in the dirrection you want to go and shoot.
I would love to go to an open parking lot or to a local airfield and push the car harder and see how it reacts..
Not to sound like a fanboy, but I shaved a consistent 5% off my times in Tarmac mode. I left some of my recording and telemetry equipment at home so I could not gather all the data I wanted to but my times were dropping with all other things equal.
One of the first things I noticed was a change in my markers. My turn out markers were off an ave of about 3-6 feet so I was straightening my wheels out much sooner. Throttle steering was increased and I have more to uncover, but even day 1 yielded some big improvements.
I'm not sure if it's because of bad memory of there was an actual change but mid range acceleration seemed to improve. Upon applying the throttle, there seemed to be absence of hesitation I recall.
A slight countersteer was only required 1 time on a slower speed corner but I'm going to blame compressor surge followed by a slight feathering lift, not the ACD tune.
This was with my WORKS rear sway on the middle setting and NT01 cold pressures at 33/35 respectively. I will try upping my rears next time based on my avs pyrometer readings. I prefer the bar to not be on max to maintain more side:side independence.
There were no performance downsides to the tune. I will keep an eye on any unintended consequences of the tune but as of now, I only see ann upside.
I look forward to more testing-
One of the first things I noticed was a change in my markers. My turn out markers were off an ave of about 3-6 feet so I was straightening my wheels out much sooner. Throttle steering was increased and I have more to uncover, but even day 1 yielded some big improvements.
I'm not sure if it's because of bad memory of there was an actual change but mid range acceleration seemed to improve. Upon applying the throttle, there seemed to be absence of hesitation I recall.
A slight countersteer was only required 1 time on a slower speed corner but I'm going to blame compressor surge followed by a slight feathering lift, not the ACD tune.
This was with my WORKS rear sway on the middle setting and NT01 cold pressures at 33/35 respectively. I will try upping my rears next time based on my avs pyrometer readings. I prefer the bar to not be on max to maintain more side:side independence.
There were no performance downsides to the tune. I will keep an eye on any unintended consequences of the tune but as of now, I only see ann upside.
I look forward to more testing-
I got my race flashed ACD in a few days ago and I'd have to agree with what Gruppe-S is saying, the car feels great in all conditions. I have only been doing street driving with it so far but already I can feel how much better the car rotates. It doesn't feel tail happy like a RWD car it just turns much better. Previously if I was mid corner and applied more throttle I would have to fight the steering wheel to hold that line through the turn and the more throttle I gave it the more the car would understeer. Now there's much less fighting with the wheel and I haven't been able to get the car to understeer much at all yet on the street no matter how hard I push. In the wet I've pushed the car pretty hard trying to get the back to come around, hoping for a nice RWD like drift but the car acts very similar to how it did in the dry. It's very predictable and in control but it rotates, it feels much less like FWD now IMO it feels like an AWD car should. I haven't found a downside to this reflash yet, I'll have the car on the track this weekend at NJMP Thunderbolt so I'll be sure to report back how it does there as well.
I don't know this guy that posted above here, but here is my review of the RACE flash from socalevo.net
There is an on ramp in Diamond Bar for the 57FWY South at Sunset Crossing & Diamond Bar Blvd. It's an uphill right handed reducing radius curve. With the stock flash I would understeer while the boost came on (2nd gear) at the end of the curve. I had to get on the throttle as far on the inside as possible because by the time I got out of the curve I would have pushed/plowed out to the left well before the ACD had time to kick in and send drive to the rear. With the race flash set to tarmac, as soon as the front starts slipping under throttle the rear end is activated right away. It happens very fast and is surprising the first few times. The ACD balances the power which can be felt as a push from the rear especially when compared to the factory flash. I'm not saying the car feels RWD it feels AWD now. I have gone through some other second gear turns that are wider that have smoother pavement and I have intentionally nailed the throttle and the result is instant four wheel claw. In a nutsheel all turn exits under throttle are planted and very grippy feeling. FWIW I have only drained one tank of gas with this flash.
There is an on ramp in Diamond Bar for the 57FWY South at Sunset Crossing & Diamond Bar Blvd. It's an uphill right handed reducing radius curve. With the stock flash I would understeer while the boost came on (2nd gear) at the end of the curve. I had to get on the throttle as far on the inside as possible because by the time I got out of the curve I would have pushed/plowed out to the left well before the ACD had time to kick in and send drive to the rear. With the race flash set to tarmac, as soon as the front starts slipping under throttle the rear end is activated right away. It happens very fast and is surprising the first few times. The ACD balances the power which can be felt as a push from the rear especially when compared to the factory flash. I'm not saying the car feels RWD it feels AWD now. I have gone through some other second gear turns that are wider that have smoother pavement and I have intentionally nailed the throttle and the result is instant four wheel claw. In a nutsheel all turn exits under throttle are planted and very grippy feeling. FWIW I have only drained one tank of gas with this flash.
Last edited by Gruppe-S; May 5, 2010 at 06:09 PM.
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CDrinkH2O (Sep 25, 2022)
Mar 10, 2009, 06:19 PM
#7
which one should I get?
street or race?
I spend most of my time on the street/highway, but eventually want to get into autocrossing my EVO, and later when I get more racing experience do track events. Would the race be way too much for me on the street for spirited driving?
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Mar 10, 2009, 09:08 PM
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if I was going to Time attack my car on the weekends with DOT tires like RT615s or Star Spec Z1s, which one would be best? this is exactly the kind of thing this car needed to push it better then the STi's DCCD
Mar 11, 2009, 10:53 AM
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which one should I get?
street or race?
I spend most of my time on the street/highway, but eventually want to get into autocrossing my EVO, and later when I get more racing experience do track events. Would the race be way too much for me on the street for spirited driving?
street or race?
I spend most of my time on the street/highway, but eventually want to get into autocrossing my EVO, and later when I get more racing experience do track events. Would the race be way too much for me on the street for spirited driving?
Not only for yourself but anyone who will be using their evo on the track will more than likely prefer the race unit.
Mar 11, 2009, 02:06 PM
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