Bully Dog Question

[xrsman]

Hey guys, just curious about different tune settings and octane levels. I think the levels are 85,87,93 on the tuner but what would happen if I used say 85 octane with the 93 tune? Am I just not going to see as much power as I would have if I put 93 octane in? I was told by an engine technician it wouldn't do any damage, but I just didn't know if the only difference I'd see was the power difference between the two octanes.

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[DavidRam]

Hey guys, just curious about different tune settings and octane levels. I think the levels are 85,87,93 on the tuner but what would happen if I used say 85 octane with the 93 tune? Am I just not going to see as much power as I would have if I put 93 octane in? I was told by an engine technician it wouldn't do any damage, but I just didn't know if the only difference I'd see was the power difference between the two octanes.

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I think the tune levels are Regular-87, and Premium-93. Do not use the 93 tune with octane lower than 93.
I had the Bullydog and developed a loud tick running the 93 tune on 91 gas!
Other members can give you more technical reasons why this is bad, I just know my truck sounded bad...

 

[Lhemi]

Do not run a lower octane than tune. EVER!!! Bully dog doesn't have octane level
Tunes. The top tune is performance and you want to run 91/93 octane on that tune.
If you run a lower tune you risk damaging your truck.

 

[SIhemi]

I'm not an expert but I think it's because the higher octane burns quicker. When you run the high octane tune it changes the spark advance so running a lower octane the gas will not completely burn off causing knocks. I'm sure someone will correct me if I'm wrong.

 

[yodge]

Sorry to high jack this a little bit but I have a question. So currently I put 89 in my truck because I was told the hemi engine is more performance so the 89 would do it better. When I get my bulldog am I no longer going to use 89 ? You stated that the tunes it has are 87 and 93? I can't get 93 where I am. 91 is the highest we have around here.


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[xrsman]

Ohh okay, thanks for the info guys!

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[DavidRam]

Sorry to high jack this a little bit but I have a question. So currently I put 89 in my truck because I was told the hemi engine is more performance so the 89 would do it better. When I get my bulldog am I no longer going to use 89 ? You stated that the tunes it has are 87 and 93? I can't get 93 where I am. 91 is the highest we have around here.


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91 is ok. But I had problems (loud ticking) running the premium tune with 91 though, it really needs 93... Consider an octane booster additive?

 

[Lhemi]

Which tuner are you running? The DS has all types of octanes. The BD only has 3 levels.

 

[yodge]

I'm not running any tuner yet. My bully dog is in the mail should be here Monday. I just wanted to know before I get it. A loud ticking doesn't sound appealing to me on a brand new truck. So I probably will stay away from the premium tune haha
So if I run a regular tune (never had a tuner, don't know the lingo) am I still able to put the 89 I've been putting in or should I start putting 87 in?
Not against saving some money with 87 just was told 89 is better for a hemi


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[DavidRam]

I'm not running any tuner yet. My bully dog is in the mail should be here Monday. I just wanted to know before I get it. A loud ticking doesn't sound appealing to me on a brand new truck. So I probably will stay away from the premium tune haha
So if I run a regular tune (never had a tuner, don't know the lingo) am I still able to put the 89 I've been putting in or should I start putting 87 in?
Not against saving some money with 87 just was told 89 is better for a hemi


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89 octane with regular BD tune will work great, but don't do 87 with regular tune. Give your truck a little love!
BTW, the BD is a great tuner and you will love it. I had one for a year.

 

[Lhemi]

89 octane with regular BD tune will work great, but don't do 87 with regular tune. Give your truck a little love!
BTW, the BD is a great tuner and you will love it. I had one for a year.

Great advise!!!! Your good to go with this!!!

 

[yodge]

Okay thank you very much. I'm hoping to see some improvement, I know you don't feel much until you get a intake but I have my exhaust so hopefully I'll notice a little bit of power


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[DavidRam]

Someday you will want to fill the tank with 91+ octane and run the premium tune, I guarantee it!

 

[xrsman]

89 octane with regular BD tune will work great, but don't do 87 with regular tune. Give your truck a little love!
BTW, the BD is a great tuner and you will love it. I had one for a year.

Just because 89 will perform better?

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[yodge]

So I just installed the bullydog and this is my first tuner. I played with it here and there but do not see the 3 options for premium tune regular tune etc. so is it preset to regular tune ?


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[jpf8653]

You ran the install feature?

 

[Lhemi]

You got a gas saver, regular and a premium.

 

[yodge]

Yes I did I will run it again but I was just curious
Does that mean it's not for performance ? Just saving gas ?


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[xrsman]

Yes I did I will run it again but I was just curious
Does that mean it's not for performance ? Just saving gas ?


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I believe it will add some power but the lowest setting for power. Let us know how much of a difference your tuner makes!!

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[yodge]

I guess I didn't install it properly this time it's going through more steps so we will see. Are there two different types of bully dog tuners or just different tunes ? I'm new to this


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