Question about Livernois tune

[TopherSho]

If you are not getting any KR with their tunes, I might argue there is no real world benefit to a couple gallons of E85 with their tunes....

If you ARE getting a small amount of KR then a couple gallons of corn makes a difference.

^^ +1

Run this test carefully.  go to your safe test spot.  let the car sit and idle until your IAT is 140/150+.  then make a run .. if you see knock you have a fuel quality issue or dirty/old/poorly gapped plug issue.

 

[Brucelinc]

If you are not getting any KR with their tunes, I might argue there is no real world benefit to a couple gallons of E85 with their tunes....

If you ARE getting a small amount of KR then a couple gallons of corn makes a difference.

I think you are exactly right.  I never got KR at WOT with my LMS tunes on the BP 93 that I get here.  That is probably why adding a bit of the E85 to my car didn't do any good. 

 

[karmapolice1111]

I think we got off topic. I'm not using E85. I was asking if it would be safe to run like a 90% 93 and 10% 102 unleaded race fuel on a LMS 4 Plus tune.

thanks in advance,
Jake

 

[SHOdded]

On the 4+ (not sure about 4+R), yes it should be fine.  The total will average out to 93.9 octane, should provide a good safety margin at the least.  To see how the car responds to the change, you should run Torque Pro with the custom parameters listed here:
http://www.ecoboostperformanceforum.com/index.php/topic,3141.0.html

 

[StealBlueSHO]

I think we got off topic. I'm not using E85. I was asking if it would be safe to run like a 90% 93 and 10% 102 unleaded race fuel on a LMS 4 Plus tune.

thanks in advance,
Jake

Yes, not only is it safe, but recommended/encouraged by LMS to mix 102 octane race fuel with 93 octane gas with their 4+X tunes.

 

[Brucelinc]

I think we got off topic. I'm not using E85. I was asking if it would be safe to run like a 90% 93 and 10% 102 unleaded race fuel on a LMS 4 Plus tune.

thanks in advance,
Jake

Jake, as I said earlier, I ran 7 gallons of 93 mixed with 3 gallons of 102.  One of the guys at Livernois (Anthony?) once told me that you can't OVER octane the car but you will reach a point where it does no further good.  My experience was that it didn't do much of anything to the timeslips but it would be added protection against spark knock.

 

[TopherSho]

Your octane would be 93.9x, and your STOIC would increase 10% from your current STOIC value.  over all there would be no performane loss and would be safe.

 

[StealBlueSHO]

Unless you are monitoring for KR, you have no idea if you need more octane...unless you can audibly hear knock...