Dyno Tuning the O.S.
TEXAS TRAVISTY, please provide detail instructions on how to get the OS tune DIY, including the OBD2 wires and software we need to use (step by step instrustion would be perfect~!). Dose it requires higher grade fuel?
BTW, is it completely reversible?
Thanks. I actually have a 12 RVR in Canada, I think tuning is the really the efficient way to increase HP.
BTW, is it completely reversible?
Thanks. I actually have a 12 RVR in Canada, I think tuning is the really the efficient way to increase HP.

Well I spent the day at MDR Performance getting the O.S. tuned yesterday and I can say I am quite surprised with the numbers Mike was able to pull. I was not sure if we would get much out of her this 1st round of tuning with just the basic bolt ons, but I was more hoping that it would just clean up some of the throttle lag and what I felt as a slight decrease in hp do to all the bolt ons with no tune. At 1st the O.S. was not responding to or liking the changesvery much, but after a pass or two she opened up. Mike did the tune in FWD mode on their Mustang Dyno, because not all O.S.'s are AWD, and he would like to make this tuning map available to all other O.S. owners.
Engine Mods as of this tune:
EvoX Throttle body
RRM 4-1 header
2.5" high flow cat
2.5" cat back with dual magna flow
RRM 4B11 light weight pulley
Geddy C.A.I with heat shield box
Ralliart Snorkel
The base line was 116 hp 104 ft. tq. (without the weather correction)
The final pass was 129 hp 120 ft. tq. (without the weather correction)
This is a 10% increase in horse power just with the tune on a N/A motor and that is pretty good!
With the weather correction on the Mustang Dyno;
The final pass numbers where 136.8 hp 127 ft. tq.
These numbers were pretty consistant to the numbers boosted was putting up on his prior to the cam install so I am ok with that. We are going to drop the cams in in a few weeks and see if we can get some more Hp out of her once again. The O.S. had a bunch of fuel pulled out around the upper rpms to get the afr's right (at a safe 12.7) and it has made a huge difference in the drive quality. So much smoother and responsive and a lot quicker, and I am super happy with the out come. The torque limiter tables were raised up 5-10% across the board as well, as to not throw be back in to limp mode for making the extra power and it has done the trick.
This is the way O.S.'s should have been from factory. I am hoping to end up at around 160 hp to the wheels or close to that on the Mustang Dyno after the cams get put in and retuned.
Mike, at MRD Performance in Kema Texas, will be offering that tuning map up soon as well. So anyone with the OBD2 cable and a lap top can plug and play the tuning map right into your car as well as make any correction necessary with Mike's guidance.
Engine Mods as of this tune:
EvoX Throttle body
RRM 4-1 header
2.5" high flow cat
2.5" cat back with dual magna flow
RRM 4B11 light weight pulley
Geddy C.A.I with heat shield box
Ralliart Snorkel
The base line was 116 hp 104 ft. tq. (without the weather correction)
The final pass was 129 hp 120 ft. tq. (without the weather correction)
This is a 10% increase in horse power just with the tune on a N/A motor and that is pretty good!
With the weather correction on the Mustang Dyno;
The final pass numbers where 136.8 hp 127 ft. tq.
These numbers were pretty consistant to the numbers boosted was putting up on his prior to the cam install so I am ok with that. We are going to drop the cams in in a few weeks and see if we can get some more Hp out of her once again. The O.S. had a bunch of fuel pulled out around the upper rpms to get the afr's right (at a safe 12.7) and it has made a huge difference in the drive quality. So much smoother and responsive and a lot quicker, and I am super happy with the out come. The torque limiter tables were raised up 5-10% across the board as well, as to not throw be back in to limp mode for making the extra power and it has done the trick.
This is the way O.S.'s should have been from factory. I am hoping to end up at around 160 hp to the wheels or close to that on the Mustang Dyno after the cams get put in and retuned.
Mike, at MRD Performance in Kema Texas, will be offering that tuning map up soon as well. So anyone with the OBD2 cable and a lap top can plug and play the tuning map right into your car as well as make any correction necessary with Mike's guidance.
the different set of maps will be available through MRD Performance after Mike gets done with all of the tunes. I am not positive on the OBD2 cable you would have to buy to hook up to your vehicle, but Mike could fill you in on all of that as well.
He is planning to do a bunch more testing on how the O.S. likes the cams as well, since it will be the single biggest power adder to the motor.
I believe he will be offering a few different sets of tunes depending on what mods you have to your O.S..
You can download EvoScan so you can upload the maps as long as you have a computer and OBD2 cable. All the tunes are done on 93 octane, and the timing has been changed so yes you would have to put premium in your tank.
You will want do a scan on EvoScan prior to loading any maps and SAVE your stock map so you can always go back and reflash your stock map and have it back the way it came from the factory.
I hope this helps and when we wrap up every thing I will post up some more #'s from the cam tuning.
I am sure Mike will gather all the info and make a separate thred so anyone can contact him directly if they have any questions.
Hope this helps.
He is planning to do a bunch more testing on how the O.S. likes the cams as well, since it will be the single biggest power adder to the motor.
I believe he will be offering a few different sets of tunes depending on what mods you have to your O.S..
You can download EvoScan so you can upload the maps as long as you have a computer and OBD2 cable. All the tunes are done on 93 octane, and the timing has been changed so yes you would have to put premium in your tank.
You will want do a scan on EvoScan prior to loading any maps and SAVE your stock map so you can always go back and reflash your stock map and have it back the way it came from the factory.
I hope this helps and when we wrap up every thing I will post up some more #'s from the cam tuning.
I am sure Mike will gather all the info and make a separate thred so anyone can contact him directly if they have any questions.
Hope this helps.
TEXAS TRAVISTY, please provide detail instructions on how to get the OS tune DIY, including the OBD2 wires and software we need to use (step by step instrustion would be perfect~!). Dose it requires higher grade fuel?
BTW, is it completely reversible?
Thanks. I actually have a 12 RVR in Canada, I think tuning is the really the efficient way to increase HP.
BTW, is it completely reversible?
Thanks. I actually have a 12 RVR in Canada, I think tuning is the really the efficient way to increase HP.

Texas, I give you props for doing all this on this platform.
Do you know if Mike is going to offer a tune that can be loaded into a stock vehicle. I'm not sure if there's anything that can be changed (timing, torque limit, etc.) if there are no mods, but if there's something he could do to help MPG and squeeze a little power out it might be worth it.
Do you know if Mike is going to offer a tune that can be loaded into a stock vehicle. I'm not sure if there's anything that can be changed (timing, torque limit, etc.) if there are no mods, but if there's something he could do to help MPG and squeeze a little power out it might be worth it.
I would but the 5k for the super charger is just not feasible for me now with three kids... and it to me is not worth the money to hp gains... that's just my opinion though.
Mike is going to offer maps as well for completely stock O.S., you would still have to buy the cable to upload though.
Mike is going to offer maps as well for completely stock O.S., you would still have to buy the cable to upload though.
That easy?
How long will the engine internals hold up? The transmission?
Probably want to upgrade the tiny brakes and beef up the suspension, too. ... if you wanted to do it right: $$$$$
.... Or spend a couple grand on just the supercharger and do a ghetto build and guess how long it will last before something breaks.
Once you're over $30k with car and parts with no warranty and not getting any of that back as far as resale value, I'd rather be looking at another vehicle.
How long will the engine internals hold up? The transmission?
Probably want to upgrade the tiny brakes and beef up the suspension, too. ... if you wanted to do it right: $$$$$
.... Or spend a couple grand on just the supercharger and do a ghetto build and guess how long it will last before something breaks.
Once you're over $30k with car and parts with no warranty and not getting any of that back as far as resale value, I'd rather be looking at another vehicle.
Evolved Member
Joined: Jan 2013
Posts: 2,740
Likes: 27
From: Out towards the countryside of Dallas, TX (USA)
That easy?
How long will the engine internals hold up? The transmission?
Probably want to upgrade the tiny brakes and beef up the suspension, too. ... if you wanted to do it right: $$$$$
.... Or spend a couple grand on just the supercharger and do a ghetto build and guess how long it will last before something breaks.
Once you're over $30k with car and parts with no warranty and not getting any of that back as far as resale value, I'd rather be looking at another vehicle.
How long will the engine internals hold up? The transmission?
Probably want to upgrade the tiny brakes and beef up the suspension, too. ... if you wanted to do it right: $$$$$
.... Or spend a couple grand on just the supercharger and do a ghetto build and guess how long it will last before something breaks.
Once you're over $30k with car and parts with no warranty and not getting any of that back as far as resale value, I'd rather be looking at another vehicle.
I thought ghetto build(s) were the reverse, where you spend practically No money on something, and Still Pretend/Insist it's worth a few $$$$ in performance...
Evolved Member
Joined: Jan 2013
Posts: 2,740
Likes: 27
From: Out towards the countryside of Dallas, TX (USA)
resume tuning talk!

Texas T, not sure how the Evoscan works - only familiar with Cobb AP - but does it trip a flag where the dealer can tell that its been flashed? Mitsu is not so understanding about warranty work on modified vehicles - something to consider.
Evo Scan just logs you passes on the street or dyno it does not actually add anything to you ECU letting it know you have been tuned, you need the definitions for that. On my Evo IX MR the key died and I had to have the key re chipped so it would start the car and the factory did this for me but at the same time they had to re flash the key and the car at the SAME time so it reset all my tuning, they said nothing about being able to tell if the car was tuned or not. It made my car run like crap until I could get it to MDR so he could re flash the tuning map back on to my car.
In short No, and for future reference make sure your tuner backs up you map on his hard drive.
In short No, and for future reference make sure your tuner backs up you map on his hard drive.
just curious if they can tell - i don't even remember if the Cobb AP can be identified after its unmarried, but i think it can ...




