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Discussion Starter #1
I realize that a lot of content we post about the RS gets left out of the forums and wanted to address this as I think it's a great medium for retaining and searching information as well as discussion. This thread will contain updates, information, posts and news and if we need to break out topics from here we will.
 

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Congratulation to Jorge for running [email protected] in his Focus RS. This is no small feat making him the second fastest RS we know of so far. The other reason this is not small feat is because a lot of the fast RS cars (drag racing) have done it on the stock turbo. The stock turbo is a great unit but we are finally starting to see the larger turbochargers step out of the shadows of the OEM turbo (which is what we should see). The key here is that the fuel system is almost at the limit with the stock turbo and torque can be over 400 ftlb. This car has aux fuel and a built bottom end meaning the limitation is lifted in bot respects.

Accomplished on a built bottom end with stock head, PTE turbo, 4 port aux fuel, E30 and with a Stratified Tune.

The PTE drop in turbo is starting to shine with the addition of the Aux Fuel and E30 even on the stock head (trapping around 5mph faster than an OEM Turbo).

The setup is far from being maxed out yet as a GA and upgraded TIP sensors are on their way to Jorge so we can read higher boost pressures and turn up the boost. I am sure we will see more from him and for now a big congrats on getting the motor built (Mafia Motor Worx) and laying down a very solid time!!

11.5 quarter .jpg

11.5 quarter 2.jpg
 

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Alex,
Great to read your findings as always.
Have you had a chance to test the mountune sequential gearbox?
Thoughts?
 

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Hey guys! I live like 4 minutes from your shop near the casino. My focus ST was tuned by you guys and was just fantastic. Eventually when I tune the RS it will be you guys again. No doubt you see me drive by all the time
 

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@[email protected] you know the ST you guys have for sale right now, has that only been around mission? Or any other local tracks like area 27 or the ridge down in Washington? Curious what lap times would be compared to an oem RS. I feel on a track that flows well the ST would keep up just fine
 

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Discussion Starter #8
Alex,
Great to read your findings as always.
Have you had a chance to test the mountune sequential gearbox?
Thoughts?
Have not tested this yes - it's a pretty cool box to be honest and I think we will see it in more cars as these cars age and get built.

Great idea Alex!

I'm a very happy 'tuned by Stratified' FS driver
Cheers Dean, glad you're enjoying the tune!

Hey guys! I live like 4 minutes from your shop near the casino. My focus ST was tuned by you guys and was just fantastic. Eventually when I tune the RS it will be you guys again. No doubt you see me drive by all the time
I think I have seen you! Drop by sometime!

@[email protected] you know the ST you guys have for sale right now, has that only been around mission? Or any other local tracks like area 27 or the ridge down in Washington? Curious what lap times would be compared to an oem RS. I feel on a track that flows well the ST would keep up just fine
The ST is honestly very well sorted and has all our goodies on it. Have only had it around Mission but around the 375whp mark it is in a balanced place and can do quite well. Come by and have a look.
 

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I'm stratified tuned also. Would love to be modding my car is USA. So many knowledgeable people out there and prices are great. Here in Melbourne everything is so expensive and limited to who can do these mods.

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I was very new to the ecoboost platform so I was trying to learn as much about it as I can. I can honestly say that about 80% of what I know now I got from reading the stratified tech articles. I already had a Mountune tune since they were the "big name" but I felt like I owed it to Alex to give them a try. I have been very happy with my 91/E30 combo flash tune ever since. Have had 0 issues with it for the last 10k mi and 6 trackdays.

Quick question though: I've started to notice that my "pops & burbles" have been less and less, even on sport mode. I definitely here it at the track (in track mode) but I do miss hearing it while I'm doing a canyon run. I remember I would even get a pop or two even when I was in normal mode back when I just flashed. Should I just reflash?
 

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Discussion Starter #11
I was very new to the ecoboost platform so I was trying to learn as much about it as I can. I can honestly say that about 80% of what I know now I got from reading the stratified tech articles. I already had a Mountune tune since they were the "big name" but I felt like I owed it to Alex to give them a try. I have been very happy with my 91/E30 combo flash tune ever since. Have had 0 issues with it for the last 10k mi and 6 trackdays.

Quick question though: I've started to notice that my "pops & burbles" have been less and less, even on sport mode. I definitely here it at the track (in track mode) but I do miss hearing it while I'm doing a canyon run. I remember I would even get a pop or two even when I was in normal mode back when I just flashed. Should I just reflash?
You can give this a try. We are making some changes to the pops as well to get them a bit more at lower RPMs based on customer feedback.
 

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Hello [email protected], any updates on using WMI for charge cooling/octane boosting. Ive seen some posts in 2017 but not much since then . Do you recommend this, can it be a substitute for installing an aftermarket IC?

Just bought an accessport from another member and look forward to tuning w you guys.



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Discussion Starter #14
I went ahead and did this yesterday, and yes, it does bring back some of the pops back.
Let me know at what point they start "going back" to being less loud.

Hello [email protected], any updates on using WMI for charge cooling/octane boosting. Ive seen some posts in 2017 but not much since then . Do you recommend this, can it be a substitute for installing an aftermarket IC?

Just bought an accessport from another member and look forward to tuning w you guys.



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Using water/methanol injection (WMI) is an effective way of doing 4 things:

1. Cooling the air charge. The availability of water vapor in the intake charge means that the charge is now able to absorb heat energy as the water changes phase from liquid to vapor. So yes it does effectively improve charge cooling.
2. Increasing octane if using methanol or similar alcohol. Methanol is a high octane fuel and you are adding this fuel to the mixture that burns. The ECU automatically reduces the fuel it injects when it detects this via the wideband oxygen sensor - so you are replacing a fraction of the lower octane pump gas fuel with high octane methanol. This reduces knock and allows for more power.
3. Adding fuel overall - as the DI system gets stressed with lots of airflow we see pressure drops and long injection times which reduce air fuel mixing and result in poorer combustion. Adding some fuel allows you to add more airflow (power) safely.
4. Some intake tract and valve cleaning is performed via WMI (but not as effectively as port/aux fuel injection)

The upgraded intercooler on the other hand:

1. Improves charge cooling with more thermal just like the first point of using WMI. It does not provide the benefits of 2-4 BUT
2. It does often lower the pressure drop across its core compared to an OEM unit. This in turn allows the turbocharger to operate in a more efficient zone of its compressor map resulting in less heat.
3. The upgraded intercooler is also often more reliable (end tanks that do not break or leak) and unlike WMI does not require fluid to be added or pumps to be maintained which are issues we see with WMI installations. The overall weight penalty versus a WMI system and fluid is also lower.
 

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Alex; Can you speak to the exhaust valve, and how it operates stock - And if you guys will offer an update/option for folks to have the exhaust valve act more 'manual' like it does with the latest revision of Cobb OTS maps? I enjoyed basically have manual control of the exhaust valve on the Cobb OTS maps.
 

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Discussion Starter #16
Alex; Can you speak to the exhaust valve, and how it operates stock - And if you guys will offer an update/option for folks to have the exhaust valve act more 'manual' like it does with the latest revision of Cobb OTS maps? I enjoyed basically have manual control of the exhaust valve on the Cobb OTS maps.
There is logic revolving around the drive mode stock. For myself I have it set to manually be open. This can be requested in the tune.
 

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Discussion Starter #17
Just finishing up a Turbonetics drop in turbo on an OEM stock block motor. A lot of area under the curve for an upgraded turbo means great driveability.

We stopped for reliability and because we had reached the limit of the fuel system with WMI And E20 fuel. More to come from this car once built and with aux fueling in place.

Modifications:
Precision turbo NX2 drop in turbo
Turbo smart waste gate for nx2 turbo
Turbo smart 50/50 blow off valve
Turbo smart BRA
CPE catted down pipe
Awe track exhaust
Accel coil packs
Ngk stage colder plugs
Mishimoto intake
Aem water methanol with progressive boost controller- spraying through throttle spacer (check valve)
Levels performance intercooler
CPE hot an cold side intercooler piping

50221016_1755878334511735_1962093905813962752_n.png
 

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Just finishing up a Turbonetics drop in turbo on an OEM stock block motor. A lot of area under the curve for an upgraded turbo means great driveability.

We stopped for reliability and because we had reached the limit of the fuel system with WMI And E20 fuel. More to come from this car once built and with aux fueling in place.

Modifications:
Precision turbo NX2 drop in turbo
Turbo smart waste gate for nx2 turbo
Turbo smart 50/50 blow off valve
Turbo smart BRA
CPE catted down pipe
Awe track exhaust
Accel coil packs
Ngk stage colder plugs
Mishimoto intake
Aem water methanol with progressive boost controller- spraying through throttle spacer (check valve)
Levels performance intercooler
CPE hot an cold side intercooler piping

View attachment 321688
Very nice.

How would this car compare with just tuned and OEM turbo. Is there any lag compared to OEM. I've seen some videos of aftermarket turbo on the rs where on the street the car is actually slower at lower revs. But was quicker at faster speeds.
As I mainly drive the car on the road I wouldn't want it slower.

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Discussion Starter #19
Very nice.

How would this car compare with just tuned and OEM turbo. Is there any lag compared to OEM. I've seen some videos of aftermarket turbo on the rs where on the street the car is actually slower at lower revs. But was quicker at faster speeds.
As I mainly drive the car on the road I wouldn't want it slower.

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There is a bit more lag than OEM - you can see that full boost happens around 3750 RPM. The top end is better for sure but to extract the most from the top end you should:

1. Have access to higher octane fuel - E85 or WMI
2. Engines with porting and cams would benefit further.

For OEM stock block up to the limit of the OEM fuel system you will see the bigger turbo open up a 30-40hp gap especially up top with some lag down low. See the comparison below.

OEM turbo is red. Also note that the OEM turbo started the run earlier. Realistically there is around 500 RPM spool difference between the 2.

OEM VS Upgraded RS turbo.JPG
 

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There is a bit more lag than OEM - you can see that full boost happens around 3750 RPM. The top end is better for sure but to extract the most from the top end you should:

1. Have access to higher octane fuel - E85 or WMI
2. Engines with porting and cams would benefit further.

For OEM stock block up to the limit of the OEM fuel system you will see the bigger turbo open up a 30-40hp gap especially up top with some lag down low. See the comparison below.

OEM turbo is red. Also note that the OEM turbo started the run earlier. Realistically there is around 500 RPM spool difference between the 2.

View attachment 321762
So is this the same car with the same mods just stock turbo vs big turbo?

Does the big turbo really cause that big of a drop in torque down low or does the run for the stock turbo starting earlier make some of that difference?
 
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