Race Gas for the old Tecumseh - Snowblower Forum : Snow Blower Forums
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post #1 of 56 Old 01-06-2018, 04:41 PM Thread Starter
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Race Gas for the old Tecumseh

What do you think about using ethanol free, leaded, racing gasoline for my 40 yr old Tecumseh sidevalve?

Here in Mass., USA, all gasoline is 10% alcohol or more. At the racing speedway nearby, I can get pure non-ethanol gas, with lead! For a few dollars more, I'll avoid the corrosive qualities of ethanol, get the lead the engine was designed for, and make my old engine last years more.

Your thoughts?
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post #2 of 56 Old 01-06-2018, 05:13 PM
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I'd use nitrous as well....seriously, can't hurt.
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post #3 of 56 Old 01-06-2018, 05:39 PM
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Quote:
Originally Posted by cranman View Post
I'd use nitrous as well....seriously, can't hurt.
And add boost, turn it up as much as it goes, and you can run it. Once.

As far as the gas goes, the engine lasted 40 years without it, what's the benefit? Proper maintenance will take care of any problems.
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post #4 of 56 Old 01-06-2018, 05:42 PM Thread Starter
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Hey Cranman, you are close to me. I'm talking about Columbus Energies, 1455 Us Hwy 6, Swansea MA, which has VP Racing fuel at the pump for $10/gallon. Leaded and no ethanol. Sweet...

If you are using nitrous on your blower then post the video!

Jsup, don't't be a kill-joy. I love my engines. Maybe you need therapy?
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post #5 of 56 Old 01-06-2018, 05:44 PM
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You could buy a can of that VP racing fuel - it's only about a hundred bucks for a 5 gallon can. Seriously if it's not a lot of money why not? Probably has a much longer shelf life too.
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post #6 of 56 Old 01-06-2018, 05:45 PM Thread Starter
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Originally Posted by dhazelton View Post
You could buy a can of that VP racing fuel - it's only about a hundred bucks for a 5 gallon can. Seriously if it's not a lot of money why not? Probably has a much longer shelf life too.
Sir, be real. I can get it the pump for less than half that. If you can't add to the thread then sit back and chill.
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post #7 of 56 Old 01-06-2018, 06:05 PM
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The first sentence was not serious. My second sentence started with the word "Seriously...." so that tells you the previous sentence was not to be taken as such and I was agreeing with you that if it wasn't much money to go for it. YOU need to chill....

Last edited by dhazelton; 01-06-2018 at 06:07 PM.
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post #8 of 56 Old 01-06-2018, 06:28 PM
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So if it is 40 years old it would be a 1977 or 78 vintage engine. I am not so sure it was designed for leaded fuel.
The switch to unleaded was around 1974.
If the octane level is about 100 or higher I would not do it. It may run worse since you can not adjust the timing. You could even burn up your exhaust valve since it burns slower.

If you are concerned about the ethanol......and you should a little bit. Get some 91 octane Aviation gas at your local small air field. I just bought some at around $5 per gallon. Or you could get the VP or True Fuel which is about $20-25 per gallon.
Don't sweat the small stuff!

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post #9 of 56 Old 01-06-2018, 06:32 PM
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The only ethanol-free gas around me is similar, leaded racing gas, for a similar price range. I'm glad to have the option available, at least, but I've never taken advantage of it.

I'm not comfortable with the idea of using leaded gas, especially when I'm standing next to the engine and the exhaust. Maybe there's no real justification for that, but lead is not good for you, and frankly, my health (and peace of mind) is more important to me than the health of an engine. We all have to make our own decisions on this point, of course, and I'm not trying to impose mine on anyone, simply sharing my perspective.

I've opted to use ethanol gas with stabilizer all the time (ie- stabilizer even in the middle of the season), and have not had any issues yet. I close the fuel shutoffs and run my carbs dry at the end of their seasons. If I really wanted to go ethanol-free, such as for off-season storage, I'd be more comfortable using TruFuel, the canned ethanol-free unleaded stuff you can get at Home Depot, etc.

It's even more expensive, at ~$20/gallon, unfortunately. So I just use stabilizer. If I gunk up a carb despite my precautions, I'll clean it. Or if it really came to that, replace it. I've seen people talk about replacement carbs for $15-20 on eBay, etc.

Again, only sharing my approach to the situation.

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post #10 of 56 Old 01-06-2018, 06:32 PM
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Go to Taunton airport and buy AV gas.....$5 gal.....
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