SCT tune for stock GT?

[tjcase85]

I just got ordered my SCT x4. I was wondering if it is okay to run an SCT tune for about 2 weeks until my cat deletes and AED tune go on. Should I just wait? Factory tunes are terrible!

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[WhiTriCobra]

Since they are canned, it's always hit or miss since every car will react different to the same tune. You could feel a bump in power or it could run pig rich. hard to say. Could always upload the sct tune and datalog it. but then again, two weeks for AED isn't that long of a wait.

 

[tjcase85]

I was going to do the 91 tune and run 93. Wouldn't that keep it from running rich?

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[nxhappy]

I doubt it would run rich. If anything the tune would run it lean. It would be safe to load the 91 tune, and use 93 octane. The 93 would prevent detonation/pinging.

 

[tjcase85]

Sounds good. I'll keep an eye on my AFR after running the tune. What's a good afr? Isn't it 11.9:1 considered spot on at WOT?

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[Canadian5.0]

I had a tune from one of the majors that was in the mid 10's. Called and they said it was normal. N/A 4.6

Just keep an eye on it

 

[Zemedici]

I wouldnt, just wait the 2 weeks.

If I had a dime for every canned tune that was removed for driveability concerns.

 

[tjcase85]

I'll just wait... it's like Christmas and I can't play with it lol

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[nxhappy]

Sounds good. I'll keep an eye on my AFR after running the tune. What's a good afr? Isn't it 11.9:1 considered spot on at WOT?

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yes on N/a motors AFR can be much leaner @ WOT. 12.0-12.5 is not out of the norm.

 

[tjcase85]

I ran the sct tune for about 2 miles. Didn't like the way it felt. AFR went to 11.6 at WOT. Reloaded the stock tune. Now looking at steeda. They seem pretty good for a DD

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