Editing Custom tunes

[evolizzee]

When I switch back and forth from my street to race tune; I notice the DS asks me if I would like to make changes to the tune or just install... Has anyone ever tried to edit/alter any of your custom tunes, provided by Hemifever? Like advancing the timing, leaning out afrs a little, or increasing redline shift points? Just curious if it is safe to do or is the tune locked which prevents any adjustments? I have easy access to E85 and C16 and every time I see that notification on the DS; I get the urge to try it out... Thanks

 

[PassivAggressor]

I just turn off MDS and input my tire size. The only other thing I would touch is throttle sensitivity.

 

[coleflo]

I just turn off MDS and input my tire size. The only other thing I would touch is throttle sensitivity.

What percentage do you set your throttle boost to?

 

[PassivAggressor]

What percentage do you set your throttle boost to?

You can max it out if you want. I actually don't even adjust that anymore.

 

[Hemi450hp]

With a HF tune, the throttle boost is already set at 20% in the tune, so there is really no reason to increase throttle boost more than that. I have done testing with throttle boost all the way from 0-50%, and have yet to feel any measurable difference. Logs have shown the exact same ET, so any gain if any, is very marginal and only at part throttle.

 

[DavidRam]

I agree with Jay... Most of us are not qualified enough to make any positive changes to a custom tune. I don't touch my Hemifever tunes and if I ever think I need something tweaked or at least looked at, I let Sean do it.

 

[HammerHead]

Don't mess with the custom tune, these are professional skilled people that know what there doing. If you want something added or changed let your tuner do it. Only thing I mess with is turning MDS off and tire height. There was a guy on the Z that messed with his custom tune and it didn't turn out to good.