Toluene booster : V-Twin Forum: Harley Davidson Forums

Serg06 · 08-07-2009, 09:05 PM

I found the Toluene octane booster and was wondering if anyone could give me a mixer heads up. How many OZ for 5 gallons of 91 octane premium fuel. i can't seem to find the thread I read a wile back. Thanks fellers.

nvsteve · 08-07-2009, 09:33 PM

If you are using straight toluene put 16oz per 5 gal. tank.
I would also add about 2oz of Marvel Myster Oil. This supposedly helps protect seals and lines.
I had a 105hp/110tq 95" build with 10.25 compression. Ran fine where I live at 4500' and higher riding. When I rode nearer sea level it would ping a bit. This combo worked wonders.
About 4oz of MMO once in a while doesn't hurt either. You can get MMo in many auto parts stores.
As an aside, if you have a stock or nearly stock motor, your wasting money by increasing octane.

Serg06 · 08-07-2009, 09:36 PM

I have a 124" S&S that pings do to low octane fuel. 91 octane just wont cut it. Thanks for the mix.

Gulfstream · 08-07-2009, 11:27 PM

Toulene
R+M/2...114 Octane

Mixtures with 92 Octane Premium
10%...94.2 Octane
20%...96.4 Octane
30%...98.6 Octane

rgrgoog · 08-08-2009, 09:46 PM

Quote:

Originally Posted by Serg06

I found the Toluene octane booster and was wondering if anyone could give me a mixer heads up. How many OZ for 5 gallons of 91 octane premium fuel. i can't seem to find the thread I read a wile back. Thanks fellers.

Do you have a link or location where I might be able to get a hold of some?

strokerjlk · 08-08-2009, 11:05 PM

Quote:

Originally Posted by Serg06

I have a 124" S&S that pings do to low octane fuel. 91 octane just wont cut it. Thanks for the mix.

not trying to be a smartazz
why dont you tune it to run the 91 if that's what your going to have to run? If your just traveling to a area that dosent have good fuel I can see using octane booster.
I had to take a bunch of timing out of mine when I was out east last week. I thought we had bad gas in the Midwest but WOW I got some real crap out east!

rgrgoog · 08-08-2009, 11:09 PM

I am running at least 10.5 to 1. I can get 93 here know, but after the hurricanes roll through, 87 is about all we can get for a while (month or two). I keep about 20 gallons of fresh 93 on hand just in case. I also use the 93 in my cage.

Faast Ed · 08-08-2009, 11:14 PM

Quote:

I would also add about 2oz of Marvel Myster Oil.

MMO will lower your octane, not raise it.
However, if you get the ping sorted out, the MMO is indeed good stuff to run every third tanks or so, to clean out carbon.

At 10.4:1, I found myself having to run octane booster all this week in Sturgis with the bad gas they have available around here. Horrible fuel around here!

I can't imagine tuning a bike to run on this garbage.
I think I'd give up having a decent build if I lived in this area! Waste of time, it would seem.

strokerjlk · 08-08-2009, 11:24 PM

Quote:

Originally Posted by Faast Ed

MMO will lower your octane, not raise it.
However, if you get the ping sorted out, the MMO is indeed good stuff to run every third tanks or so, to clean out carbon.

At 10.4:1, I found myself having to run octane booster all this week in Sturgis with the bad gas they have available around here. Horrible fuel around here!

I can't imagine tuning a bike to run on this garbage.
I think I'd give up having a decent build if I lived in this area! Waste of time, it would seem.

Ed
what ya dont take your laptop and adjust your map as you go!

LOL
I thought you would be as ate up as me and make a new map every night

Mtclassic · 08-08-2009, 11:30 PM

Quote:

Originally Posted by Faast Ed

MMO will lower your octane, not raise it.
However, if you get the ping sorted out, the MMO is indeed good stuff to run every third tanks or so, to clean out carbon.

At 10.4:1, I found myself having to run octane booster all this week in Sturgis with the bad gas they have available around here. Horrible fuel around here!

I can't imagine tuning a bike to run on this garbage.
I think I'd give up having a decent build if I lived in this area! Waste of time, it would seem.

I got some bad gas in Sturgis too, but it was from one of those over priced $8.00 Polish Dogs.

HRLYDeuce · 08-09-2009, 09:59 AM

The booster I use is liquidhorsepower by Manhattan Oil, when I am in areas where I cannot get good fuel or the fuel is just really crappy! I have personally noticed on my bike a difference in how much smoother it runs, but the real kicker was the increased MPG, with no changes to my riding style, which was impressive. Just my own observations!

Serg06 · 08-09-2009, 01:47 PM

Quote:

Originally Posted by strokerjlk

not trying to be a smartazz
why dont you tune it to run the 91 if that's what your going to have to run? If your just traveling to a area that dosent have good fuel I can see using octane booster.
I had to take a bunch of timing out of mine when I was out east last week. I thought we had bad gas in the Midwest but WOW I got some real crap out east!

I have taken to two tuners and have dropped over $1,200.00 bucks to get nothing done. I don't have a tuner around that could figure this out. I called the fellow I bought the bike from and he said it had 12.1 compression. So no matter
what I do it's not going to help. I'm rebuilding the top end this winter and changing over to a more reasonable compression ratio like 10.1
I want to keep my torque number at 125ft.

strokerjlk · 08-09-2009, 01:56 PM

Quote:

Originally Posted by Serg06

I have taken to two tuners and have dropped over $1,200.00 bucks to get nothing done. I don't have a tuner around that could figure this out. I called the fellow I bought the bike from and he said it had 12.1 compression. So no matter
what I do it's not going to help. I'm rebuilding the top end this winter and changing over to a more reasonable compression ratio like 10.1
I want to keep my torque number at 125ft.

Wow
12:1 I see!!
You might do a compression check to see where your at (CCP).
then if ya know what cams are in it swap it out for something that will bring your corrected comp down (latter intake closing).

Serg06 · 08-09-2009, 02:34 PM

Quote:

Originally Posted by strokerjlk

Wow
12:1 I see!!
You might do a compression check to see where your at (CCP).
then if ya know what cams are in it swap it out for something that will bring your corrected comp down (latter intake closing).

I have the S&S 640 lift cams. I think the guy who built it never thought about getting rid of this bike. He ran 100 or 110 octane fuel and say's he never had pinging issue's. here in Ca. we don't have that kind of fuel at the pumps.

I've tried changing the maps on my PCIII and have gotten nothing resolved. Any ideas are welcome.

strokerjlk · 08-09-2009, 03:04 PM

Quote:

Originally Posted by Serg06

I have the S&S 640 lift cams. I think the guy who built it never thought about getting rid of this bike. He ran 100 or 110 octane fuel and say's he never had pinging issue's. here in Ca. we don't have that kind of fuel at the pumps.

I've tried changing the maps on my PCIII and have gotten nothing resolved. Any ideas are welcome.

maybe a tts or sest and and a good tuner.
s&s 675 has 4 more deg intake close 64 DEG VS YOUR 60 DEG. that would bleed of some more comp.
Leinweber RE-T9S has a intake close of 82 deg WOW with a 660 and 640 lift.
I would do a compression test to figure out where you are at.
A lot of guys throw out compression figures based on advertised figures that are not real world numbers when every thing is considered .(head cc;s deck height, gasket thickness piston actual dome or dish cc ) and then there is the actual corrected compression arrived at from the above factors+ cam specs.
So maybe the guy you bought it from really didn't take all this into consideration when claiming 12:1 comp.
anyway you look at it a pc III isnt going to get you there with your build.
you need to be able to tune it in the precise areas that need attention to get it right. I think it could be worked out with what you have now. ya just need someone willing to spend the time with a sert tts sest to get it right.