The Tune by SVC

[ModFreaksRAPTOR]

Ok.... Just to clear up any misconceptions about fuel octane and global spark settings etc....

We DO NOT reccomended running lower octane fuel than the designated global spark setting.


The SVC TUNE is preset for 91+ octane fuel at global spark 0

89+ octane at global spark -2

87+ octane at global spark -4


Using higher octane than what global spark is set for is ok.

Using lower octane than what global spark is set for is NOT ok.

Thanks for the post. Crystal clear. I double checked with Jeff earlier, I set mine at -4 since I run 87 octane for the most part. Nice to have the ability to change the setting and run 91 when I feel like it.


MF RAPTOR

 

[HAYNES OFFROAD]

No problem! I just don't want to hear of anybody running into issues running the SVC TUNE because of false information. Would not be good. @ModFreaksRAPTOR

 

[Raptor911]

So I am running the 5* tune and had issues with emissions testing. I had to change it back to stock and then ran the truck for 50 miles and then it passed.

I am considering the SVC tune as it does NOT shut off the CAT and O2 sensors.

So the SVC comes standard to run 91 (0 spark), I assume you can readjust the spark via the SCT tool when running less octane?

 

[SlimChaChi]

So I am running the 5* tune and had issues with emissions testing. I had to change it back to stock and then run the truck for 50 miles and then it passed.

I am considering the SVC tune as it does NOT shut off the CAT and O2 sensors.

So the SVC comes standard to run 91 (0 spark), I assume you can readjust the spark via the SCT tool when running less octane?

Correct, you can adjust it -4 for 87 - 2 for 89 and leave it at 0 for anything 91+. you'll also have the ability to adjust your TPMS sensors.

 

[Deleted member 12951]

Correct, you can adjust it -4 for 87 - 2 for 89 and leave it at 0 for anything 91+. you'll also have the ability to adjust your TPMS sensors.

Not all SCT tuners allow TPMS access. Mine does not.

 

[SlimChaChi]

Not all SCT tuners allow TPMS access. Mine does not.

ahh, that may only be for the livewire...i wasn't able to do so until after SVC v2...

 

[Rookie]

The SCT X3 and X4 should allow global spark adjustment unless it can be locked out by the tune itself.

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[Deleted member 12951]

The SCT X3 and X4 should allow global spark adjustment unless it can be locked out by the tune itself.

Think they all allow this. I am talking about the ability to adjust the TPMS values.

 

[cpost6]

Both our X4's allow us TPMS adjustment

 

[EFD_5924]

I looked at the SVC website and it shows that it compensates for bad gas. How does it do this, but not compensate for lower octane levels (sub 91)?