Gday was reading on net about octane boosters ect.Anyways got thinking about throwing some in me bike( 2012 dyna with a stage 4 kit)just for a bit extra get up and go.

Nulon pro strenth raised ron up 2.8, meaning 100.8 ron using bp ultimate or other premium 98 fuel.So before I go ahead just wanted a little advice if wise to do so or not,dont want to fuck me motor just yet.

Cheers 68 Wideglide.

One needs to be careful when working with Octane boost type products. The additives used to improve Octane have a limited effect when added into gasoline. Some of what the aftermarket boosters are using in there formula may not do anything for the gasoline you use and it can even reduce the Octane in some cases. The gasoline manufactures are already adding things to get the Octane where it is to begin with and if you add more of the same you can get into trouble. I would only use a small amount and test what your going to try first to determine what your going to get. This may save you a bunch of wasted dollars down the road.

 

I tune for the fuel I use the most,  BP98 Ultimate.

 

Don't think there is much to gain by souping up 98,,, waisting dollars.

 

I have noticed that the Ultra doesn't like some fills from Caltex or Shell, I put this down to the servo operators choice of what they actually put in the tanks.

 

I do keep a bottle or two of the Pro-Strength octane booster handy for times that I can only refuel with 91 octane, or the engine tells me it's being fed low octane, hoping that it raises it to around where the engine is tuned for.  The booster Seems to work OK in those cases.

 

Nulon Pro-Strength claims to boost octane by 7 numbers.

11.2:1 compression can run on 91 without issue

I personally wouldn,t touch octane boast, just cause carbon build up on pistons

 

Just to follow up here widey, and try to answer your original question, I think you'de be pretty safe in giving it a try and see if you notice any difference the booster would make.

As I hinted before, you would notice a bigger change if adding the booster to 91 ron, but as Steve mentioned it probabley isn't wise or of much benefit to add a booster to 98 ron as it  most likeley already contains the max legal/safe amount of methylcyclopentadienyl manganese tricarbonyl,

the same ingredient that makes up about 6.5% of the Nulon Pro Booster.

You will see on the packaging that it recommends to advance the spark timming to acheive full power potential. Of course, you change the octane rating then you gotta change the tune to suit.

As the other boyz say, you can run 91 ron in high performance / high compression engines with no issues, which is correct, but at a loss of potential power because the engine has to be de-tuned (ignition timming retarded) to accommodate the lower fuel rating.

(reminds me of the old holden red moter days when ya lifted the bonnet and advanced the timming 3 degrees for super and retarded it 3 degrees for standard)

Carbon build up can also be attributed to poor combustion chamber design, or more so, incomplete burning / combustion, due to poor tuning, running rich.

As the Pro Octane Booster is 6.5% methylcyclopentadienyl manganese tricarbonyl, and 93.5% liquid hydrocarbons, a properly tuned engine that is running efficiently will not suffer a build up from the additive.

As you're running a stage 4 kit and say that you're looking for just a bit extra get up and go I doubt you're thinking of the later, so here's my take on what you need to do,

Try the Octane booster, but to be fair, you must retune for any potential increase and efficientcy, then if you do experience a gain in get up and go, continue to add the booster to maintain the fuel rating for that tune.

 

If you don't experience any noticable gain in power or effeciency, quit the booster and re-tune for what ever fuel you decide to use as the norm.

My guess and reccommenation would be 98 ron to acheive the max potential from the donk.

It'll be interesting to see what gains you get in a stage 4  engine by being able to kick the tune a wee bit.

 

If I've been able to explain all that correctly, you'll now know that I think the biggest advantage with Pro Octane Booster is to add it when ya get caught having to use 91 ron fuel when ya machine is tuned for 98. I reckon the gains in adding it to 98 ron fuel will be negligable.

 

And of course, the other thought is if you want a bit extra in get up and go, the garunteed way is to add on a little NOS bottle, 

Your fuels may be different than what we get here in USA but I've got a good friend who was the chief chemist for Unocal76 when they were the fuel used by Nascar. He knows his shit and he really opened my eye's to the Octane boost deal. The things he showed me are real and make sense when you have all the facts. He could make just about any product look good by selecting the correct base fuel for the test. Take brand X Octane boost and use Shell fuel and it not only didn't work but reduced Octane, use brand B Octane boost and it helped 5 points. Now switch to 76 fuel and they both reduced Octane, then switch to Chevron and brand B reduced Octane while brand X added 8 points! It ALL depends on what the base fuel was made of and not knowing that is the issue. All I can say is give it a try but be careful to only use what is called out for by the manufacture as adding too much can make it go the wrong direction.

 Thanks guys for all the feedback seems most of you give it a thumbs down so will abort that idea for now.

As for the gas,could be just the ticket keep ya's posted.

Merry xmas all.

68 wideglide.

And our octane numbers  (RON) mean little to our USA buddies, who use a different rating system.

wikicars.org/en/Octane_rating

If octane booster makes you happy, go for it, but not really worth it.

In my standard 09 heritage it runs excellent on BP 98 Shell 98 but loves United 100% Octane. I usually use it every 3 or 4th fill up just for that extra boost, besides United isn't everywhere as is BP or Shell. You can certainly tell the difference under hard acceleration!

Hi guys,

Just recently I used 100 RON from United like Crazy Erne, it is noticable if your engine compression is over 220 psi or 11:1 or higher. I have octane tried boosters and personal its a waste of money!! My 103 Fatbob compression is 11:1 or 225 psi and the United fuel thus is the best my application. For stock HD engine 91 or 95 RON is fine.

If there is people with large high compression engines, give United 100Ron ago. I have asked the Indian employee over the counter who makes their fuel, couldn't understand a word nor did he really knows? Does any one know the suppler?

Ride free while you can!!

Rocket, does the United 100 contain Ethanol ? ( I'm sure it does, but should still be fine)
What are the specs of your engine ? 225 cranking is getting up there ! No wonder it like's a bit of Ethanol !!

Be careful of the United Fuel... anything with ethanol will destroy rubber in fuel lines and pump. I used 100RON from United which I think had ethanol additive and lost power within a few days as it appeared to fowl the filter or injectors... Refilled with BP 98 and all good again...

Speedzter,

My 103 spec: TMAN 590 with s&s GEARS, SE FORGED PISTONS, DECKED TO 0, 30" HEAD GASKET, all head work done by Dan Vance with 2" exhaust valves, springs, Screaming Eagle manifold injectors etc and I think the CC'S is about 70 or 80 ? etc, SE ROLLER ROCKERS, D & D 2 into 1 exhaust and S& S dual tuned air cleaner. Had it dynoed ( 3yrs ago ) at Peter Stevens max torque 114 and 113 horsepower and have managed to get little more by fine tuning. Also have Thundermax Auto Tune of which I tickle with time to time. That why I found the United 100 RON really responsive and pinging is nearly gone but only hot days and traffic!

Very happy with it thus far and every ride she gets a hammering, the TC are a amazing engine that can take alot of thrashing.

Uncle Ho, I met you at my mates funeral Mark Bastos, I was the Reverend/Minister that conducted the service. How can you confirm if United uses ethanol and is it still OK to use the United 100?

Ride while you can!!

Rocket, Sounds like a nice strong 103.

I remember asking Mark about Dan Vance, and he gave hime a good rap.

Here's a link to United :

www.unitedpetroleum.com.au/united/fuel/premium-100

I wouldn't be too concerned with running 10% Ethanol, after all, HD's come from the US where Ethanol is common.

 

greeting rocket...

small world.... it was a great send off for an awesome guy

I cannot confirm it contained ethanol... all I know is that the signs on the pump just didnt look right. The link posted now confirms my suspicions. After I filled with United 100 and was down to 1/4 tank I started having all sorts of issues with lack of power when I twisted the throttle. It was a bitch to start and if I wrapped the throttle the bike instantly died. A slow rotation was the only way I could get home. Filled with BP98 (I usually use 95) and no more issues. I'm told that mixing fuels also leaves a residue on the filter so it could have been that. Anyway never had any more problems. Mine is a 2007 (build 10/06) so not sure rubber would be ethanol resistant.

Hope we can catch up again....

Hi all,

My 103 really like the United 100 RON and fuel economy is slighty better if I'm not to hard on the throttle but on those cold nights/morning really notice the difference.!! My car is a BA XR6 Turbo ( slighlty boosted etc ) and she also loves the fuel. A few of mates are HD mechanics and they said that small amount of ethanol shouldn't be a problem?, vehicle are like some women a little tempamental time to time? I know that might get me trouble?

Ride while you can!