110 Octane Race Fuel + Tune

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seanhv2

seanhv2

Joined
Jan 22, 2021
Messages
78
Location
Georgia, USA
Hello All!

I recently purchased a tune from BrenTuning for my Panigale V2 and I have to say I LOVE it. It pairs great with my de-cat slip on exhaust. BrenTuning gave me an upmap for 93 fuel and a separate one for Race Fuel. I recently purchased 110 Octane race fuel and I’m wondering if it will do any harm to my bike or not if paired with the race fuel upmap. Should I exchange for a lower octane? If anyone needs any more information I can provide it, I am very ignorant on this subject.

Thanks!
 
Depends what octane the race fuel map was tuned for. A higher octane fuel than what it was tuned for wouldn't be a benefit at all so maybe reach out to brentuning and see what octane their race tune is based off of.
 
It depends on the fuel. There's oxygenated and non-oxygenated race gas. For example, MR12 is oxygenated but Renegade 110 you get from Chuckwalla Valley Raceway in CA is not. Bren does a lot with MR12 so it is likely for that, but it is worth asking them for clarification.
 
MaverickiB said:
It depends on the fuel. There's oxygenated and non-oxygenated race gas. For example, MR12 is oxygenated but Renegade 110 you get from Chuckwalla Valley Raceway in CA is not. Bren does a lot with MR12 so it is likely for that, but it is worth asking them for clarification.
Click to expand...
Yes I bought Renegade 110. Would you not recommend using this for an MR12 upmap?
 
seanhv2 said:
Yes I bought Renegade 110. Would you not recommend using this for an MR12 upmap?
Click to expand...

I would not. There's enough of a difference between the two to not risk using a tune for one with the other. Keep in mind, Brentunes push the limits of the motor, a buddy with their S1KRR mapping took it in for a real dyno tune and the shop noticed the Bren tune adjusted ignition timing to verge-of-grenade levels. The risk of damaging your motor using their MR12 map with non-MR12 fuel is way too great to warrant attempting.
 
Also, does the Bren system disable the lambda sensors and/or are they removed? Leaded gas will destroy them. I removed mine since the T800 UpMap system doesn't use them, which is the only reason why I picked up some of that 110 when I was last at Chuckwalla. If they are still installed, you're just gonna end up costing yourself money using that gas.
 
The BrenTune for the V2 was done on my personal bike and can confirm it was tuned with MR12. I'm sure 110 would be fine with the tune but doesn't hurt to double check with them.
 
Desmo-Duey said:
The BrenTune for the V2 was done on my personal bike and can confirm it was tuned with MR12. I'm sure 110 would be fine with the tune but doesn't hurt to double check with them.
Click to expand...

I agree with Maverick - I would not switch between oxygenated and non-oxygenated fuel.

As an aside, I’m not sure I understand the motivation to tune a modern liter bike for high octane fuel, unless it was a competitive effort race bike anyway. For track use, I can see splurging for high quality 93 octane fuel from one of the reputable suppliers like VP, but otherwise I think the juice isn’t worth the squeeze.

For a stock motor panigale (99 or v4), you gain what - 5-10 hp at the wheel switching from pump gas to 110? We’re not talking about forced induction motors where the difference between 93 octane or 110+ is the difference between running 15 lbs of boost and making 600 whp vs safely running 40 lbs of boost and making 1000 whp.

My v4 dynoed 193 whp on $3/gal 93 octane pump gas. Would it be 5x more fun running it tuned for $15/gal mr12 at 203 whp? I doubt it.
 
I picked up the 110 gas from the track just because it was available and I am very confident it is high quality fuel. I wouldn't go out of my way to get it. Normally, I have to trek out to a VP gas station to get their good stuff. I have had my bike get all clogged and ...... up by bad gas more than once, so I err on the side of caution.

My bike is a 100 percent track bike though, so it makes a little more sense. Would be insanity and literal burning money to put race gas in a bike and then use it to putt around town and rev bomb in front of Starbucks.
 
MaverickiB said:
I picked up the 110 gas from the track just because it was available and I am very confident it is high quality fuel. I wouldn't go out of my way to get it. Normally, I have to trek out to a VP gas station to get their good stuff. I have had my bike get all clogged and ...... up by bad gas more than once, so I err on the side of caution.

My bike is a 100 percent track bike though, so it makes a little more sense. Would be insanity and literal burning money to put race gas in a bike and then use it to putt around town and rev bomb in front of Starbucks.
Click to expand...

Agreed. I run u4.4 in my built motor gsxr track bike and ms109 in my heavily modified 2015 1299 R track bike, and I would consider buying 93 octane VP for the v4 for track use, but I just don’t see any real benefit to tuning the v4 for 110 and spending all that money for 5% more power.
 
MaverickiB said:
Also, does the Bren system disable the lambda sensors and/or are they removed? Leaded gas will destroy them. I removed mine since the T800 UpMap system doesn't use them, which is the only reason why I picked up some of that 110 when I was last at Chuckwalla. If they are still installed, you're just gonna end up costing yourself money using that gas.
Click to expand...
Cats are removed 02 sensors are not removed. Will ask if the tune disables them
 
MaverickiB said:
I picked up the 110 gas from the track just because it was available and I am very confident it is high quality fuel. I wouldn't go out of my way to get it. Normally, I have to trek out to a VP gas station to get their good stuff. I have had my bike get all clogged and ...... up by bad gas more than once, so I err on the side of caution.

My bike is a 100 percent track bike though, so it makes a little more sense. Would be insanity and literal burning money to put race gas in a bike and then use it to putt around town and rev bomb in front of Starbucks.
Click to expand...

it’s my first track day and just wanted to experiment with race fuel. i mainly ride on street rather than track. should i just stick with 93?
 
craig bush said:
Agreed. I run u4.4 in my built motor gsxr track bike and ms109 in my heavily modified 2015 1299 R track bike, and I would consider buying 93 octane VP for the v4 for track use, but I just don’t see any real benefit to tuning the v4 for 110 and spending all that money for 5% more power.
Click to expand...

so should i just run 93 pump gas?
 
seanhv2 said:
so should i just run 93 pump gas?
Click to expand...

I’m no subject matter expert or master tech, so consider anything I say with that caveat, but octane rating just indicates a fuel’s resistance to uncontrolled combustion (pre-ignition or detonation). If a motor doesn’t need it, then running higher than 93 octane fuel confers no advantage, but a high quality 93 octane fuel from a company like VP, will likely be cleaner and more consistent than 93 from the pump, so that might be worth it.
 
craig bush said:
I’m no subject matter expert or master tech, so consider anything I say with that caveat, but octane rating just indicates a fuel’s resistance to uncontrolled combustion (pre-ignition or detonation). If a motor doesn’t need it, then running higher than 93 octane fuel confers no advantage, but a high quality 93 octane fuel from a company like VP, will likely be cleaner and more consistent than 93 from the pump, so that might be worth it.
Click to expand...

so mr12 is still 93 octane? i am starting to understand what you’re saying here.
 
Also, most gas stations use the same pump for all their different fuels. So when you pay for premium, the first bit of it (depending on how long the hose and pump system is) is the ...... gas that dude in the Neon before you paid for. Not a big deal for a car, but can be a bigger deal on things like motorcycles with much smaller tanks.

I had to run an entire can of seafoam through my V4 after I got "premium" fuel from a station that was due for a resupply. Basically aucked a bunch of sand and whatever ........ from the bottom of the storage tank. So I am jaded and do not trust normal gas stations other than VP and, in a pinch, 76 (they've been pretty good to me).

I bought an electric motorcycle for commuting because of my mistrust in normal pump gas, lmao.
 
seanhv2 said:
so mr12 is still 93 octane? i am starting to understand what you’re saying here
Click to expand...

mr12 is rated at 93, but it’s leaded so it’s more resistant to detonation and can be run in high compression motors. It’s also oxygenated, so it likely requires a richer fuel map than a non-oxygenated fuel like pump 93.
 
seanhv2 said:
it’s my first track day and just wanted to experiment with race fuel. i mainly ride on street rather than track. should i just stick with 93?
Click to expand...
Its your first track day and you are talking about running race fuel?! You should go out there and learn how to ride the bike first.
 
seanhv2 said:
so should i just run 93 pump gas?
Click to expand...

If you want an alternative to pump gas for track use in a bike that doesn’t require a higher octane fuel, you might consider this:

vpracingfuels.com

VPR | VP Racing

VP’s latest fuel for 4-stroke or 2-stroke powersports applications, VPR bridges the gap between pump gas and race fuel. The blend is a nod to riders of
vpracingfuels.com vpracingfuels.com
 

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