MattW - 2017 Subaru Legacy 3.6 CVT - Tuning

west_minist
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MattW - 2017 Subaru Legacy 3.6 CVT - Tuning

Post by west_minist » Sun Dec 04, 2016 5:41 pm

Info
Owner: MattW
Rom: DB4I500D
Tyres:
Car Weight: 1677kg
Driver+ Weight: 136kg
Total Weight: 1813kg

Mods
None

Tuning: CVT, DBW & minor engine maps (due to limited logging for proper engine tuning)

Weather
Image

west_minist
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Stock Drag Data

Post by west_minist » Sun Dec 04, 2016 5:42 pm

Stock Drag Pull.png
Stock Drag Pull.png (17.48 KiB) Viewed 4206 times

west_minist
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v1 Drag Data

Post by west_minist » Sun Dec 04, 2016 5:43 pm

v1 Drag Pull.png
v1 Drag Pull.png (17.5 KiB) Viewed 4206 times

west_minist
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Customer review

Post by west_minist » Sun Dec 04, 2016 10:06 pm

http://legacygt.com/forums/showpost.php ... stcount=35
Hi Ed - you're too kind. But I will take what I can get and keep the wonderful customer title. :lol:

I was able to have Ed live with me in the car while driving on the stock rom, and his modified roms. He monitored in real time my cars ecu via my laptop and team viewer all while on the phone with me listening to the car.

This morning I woke up to a new rom version and i'm :eek: impressed after the driving today! Huge progress made from the first rom and the difference between today's rom and stock rom is, again, :eek: ... Huge improvement in all areas over stock.

Anyone on the fence should not hesitate to let Ed/XRT dial in their 6th gen 3.6.... We're still working on mine but as of where we are at now I can recommend XRTs services with confidence.

As far as canned tunes vs. custom tunes there is no comparison in my 20 years of light modding experience. The custom tune is always much better than the canned tune.

The most modded car I ever had/did was a Mustang 5.0 liter, roots style supercharger, aluminum heads, and the rest of the expected mods one would have at that level. Next on the to-do list was a dyno tune but I had to stop with the car before that happened. Point is, I was on the Kenne Bell (supercharger manufacturer) canned tune and there was so much left on the table. At least a half second in the 1/4 mile. I was running high 12s low 13s and that was a mid 12's car all day long.

Anyways you get the point.

If anyone has any questions for me RE: XRT tuning don't hesitate to ask.

west_minist
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v6 Drag Results

Post by west_minist » Fri Dec 23, 2016 8:06 am

v6 Drag Results.png
v6 Drag Results.png (19.83 KiB) Viewed 4110 times
v6 Dyno SAE vss - Drag Pull.png
v6 Dyno SAE vss - Drag Pull.png (33.59 KiB) Viewed 4092 times

PDrealtor
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Re: v6 Drag Results

Post by PDrealtor » Fri Dec 23, 2016 3:10 pm

west_minist wrote:
v6 Drag Results.png
http://legacygt.com/forums/showpost.php ... tcount=491
Happy to see these times, Ed. Good job! My butt dyno agrees. ;) The v6a times have got to be better. If not, forget the times and just go with my butt dyno. LOL.

The rom v6a feels much stronger in the 3rd gear pulls, and the there is a good improvement from a stopped WOT run (drag pull). The car is really flying in the top end in v6a vs. v6. Again, 3rd gear pulls are a huge improvement over just the last rom, v6!

Pedal position is controlling where the CVT gearing is almost precisely now, where as before the CVT just had a mind of its own and would shift up to keep the engine in efficiency mode. Now I can still adjust pedal position for engine efficiency, but also adjust pedal position to hold the down shift for a good amount of time. It's the best of both worlds in regards to the CVT. It takes some of the VARIABLE out of constant variable, and gives some control to the driver. This is a huge drive ability improvement in my opinion.
Every version is getting better. As I was typing this I just got a v7. :shock: :shock: :twisted:

Will keep reporting back here as I have good updates.

west_minist
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v2 Data

Post by west_minist » Sat Dec 24, 2016 2:08 am

Drag Pull - rpm vs time.png
Drag Pull - rpm vs time.png (18.25 KiB) Viewed 4101 times
Drag Pull - vss & tps vs rpm.png
Drag Pull - vss & tps vs rpm.png (18.67 KiB) Viewed 4101 times
XRT v2 3rd Gear Dyno SAE vss.png
XRT v2 3rd Gear Dyno SAE vss.png (27.24 KiB) Viewed 4101 times

west_minist
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V7 Results

Post by west_minist » Sat Dec 24, 2016 11:19 pm


west_minist
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v8a Results.

Post by west_minist » Sun Dec 25, 2016 8:58 pm

https://www.youtube.com/watch?v=2S-RPCx ... e=youtu.be
v8a Drag Times.png
v8a Drag Times.png (21.8 KiB) Viewed 4083 times


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