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Tanaka 32cc Nitromethane Experiment

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Old 07-10-2008, 10:38 AM
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Default Tanaka 32cc Nitromethane Experiment

Hi all,

I have been toying with trying nitromethane fuel on my bike for a while. I've to this point been put off by the messages on here warning dire consequences should this be used alone but I am trying to test different mixtures of petroil/nitromethane.

I had a 3/4 tankfull on the bike of normal mixture so I thought I would add a little of the NM to it. All in all I added 3 teaspoons of NM to the tank and filled up the rest to make sure it had mixed.

Effectively that was 15ml of NM in 770ml.

At this ratio I didnt have any expectations at all - given the amount was so low. I am amazed the difference it has made. The bike is slightly more responsive and it holds speeds better in headwinds (a GEBE weakness) but its in the starting that the real difference is found.

It used to be that it would need 4-5 pulls on choke to get a cold engine to start (mine is the Tanaka 32), and 2-3 pulls to fire a warm/hot engine. With just that small amount of NM in the fuel mix, its now one pull with choke to start a cold engine and one (choke off) to start a warm one. I actually pulled the starter as hard as I would normally this morning and hurt my arm because the engine fired almost immediately.

I have checked the plug and it is the same lovely tan colour as it was before I started so I am not running lean. What I will probably do in the next few days is put another 15mls in the tank to see the difference - ie to see if it will help performance without hurting the motor.

I have added 50mls to my remaining mix in the 1 gallon can that I use which is a little lower than what I have in the bikes tank so I will see if the effect is the same...

Jemma xx

WARNING: Nitromethane fuel is Methanol based. Methanol is a metabolic poison and can KILL. It can be absorbed through the skin, and both fuel fumes and exhaust fumes can be dangerous. Use gloves when handling it, and if any area of skin comes in direct contact, rinse IMMEDIATELY.

Methanol
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Old 07-10-2008, 10:44 AM
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Default Re: Tanaka 32cc Nitromethane Experiment

I ran out of gas at work one day and did not have enough to get home. Instead of pedaling to the gas pump I used some Nitro...I know what you mean it will run like a Champ!!

But I did not take the time to mix fuel/oil correctly....I did not get very far when my wrist pin started to go out. I also twisted the crap out of the motor

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Old 07-10-2008, 10:56 AM
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Default Re: Tanaka 32cc Nitromethane Experiment

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Originally Posted by fairracing31 View Post
I ran out of gas at work one day and did not have enough to get home. Instead of pedaling to the gas pump I used some Nitro...I know what you mean it will run like a Champ!!

But I did not take the time to mix fuel/oil correctly....I did not get very far when my wrist pin started to go out. I also twisted the crap out of the motor

which is why I am being nice to my motor - I cant afford to kill it - its my only form of transport and I can barely afford to run even that..

have you managed to fix it up, or is it terminal?

Jemma xx
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Old 07-10-2008, 11:00 AM
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Default Re: Tanaka 32cc Nitromethane Experiment

Yes I got it all fixed up and running great. I shut it down as soon as I noticed and was able to limit the damage.

I think Nitro will work just fine...Glad you are taking the time to do it right.
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Old 07-10-2008, 11:08 AM
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Default Re: Tanaka 32cc Nitromethane Experiment

Good thread.....so the NM you used.....what concentration? What brand? Etc?
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Old 07-10-2008, 11:18 AM
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Default Re: Tanaka 32cc Nitromethane Experiment

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Originally Posted by Pablo View Post
Good thread.....so the NM you used.....what concentration? What brand? Etc?
Hi,

the brand is Model Technics - the type is TechPower 25 glow fuel. This is 25% Nitromethane & 60% methanol.

It has a additive called SICAL in it which is supposed to cool the engine and provide better lubrication.

it also contains 15% EDL2 which is a synthetic lubricant.

Apparently this fuel is capable for use in both 2 and 4 stroke engines - so it might work with the 4 stroke kits as well..

glowfuel

Jemma xx
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Old 07-10-2008, 04:38 PM
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Default Re: Tanaka 32cc Nitromethane Experiment

What does a wristpin failing sound like?
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Old 07-10-2008, 04:45 PM
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Default Re: Tanaka 32cc Nitromethane Experiment

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Originally Posted by nitroscope8 View Post
What does a wristpin failing sound like?
It's kinda a ticking sound at low RPM and more of a rattle at higher RPM...You could also get " Piston slap" that is when the piston will hit the head. I was lucky it did not get that bad, I cought it just in time.
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Old 07-10-2008, 04:56 PM
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Default Re: Tanaka 32cc Nitromethane Experiment

Interesting. Seems like that could go in the can along with your 2-stroke oil when making up a batch of gas....a gallon of NM should last a while at that rate...might just make it worth it.
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Old 07-10-2008, 05:49 PM
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Default Re: Tanaka 32cc Nitromethane Experiment

My math is terrible is that about 1/40 ratio
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