fuel query

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Nitroistop

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Hi there, just like to say hello and hope you may be able to advise with a couple of questions on fuel.
I bought my first Nitro rc (a 1/10 Himoto .18 buggy) 4 months ago, and after reading up on various sites, successfully broke it in and it runs a dream now. I have had a few smashes as I should think most people do, but thanks to the manufacturer having a very fast spares ordering service I have been able to repair it very quickly.
The worst smash bent the chassis as well as splitting the tank and trashing the steering servo. However, I was able to rebuild it on new chassis and replace all the other damaged parts within 90 minutes.
I now fitted a failsafe and also use lithium batteries to stop the nimh packs failing to work in the cold which is what caused my runaway smash.

Anyway, about fuel, I had 2.5l of 16% tornado supplied with the car which I ran it in on and did initial tuning with. After that I now use byron gen 20%. I didnt have any issues with the change of fuel, but I am wanting to progress to 30%. Question is, will this cause problems? I intend to use a gallon of 25% after my gallon of 20% is used, before going up to the 30%, thereby doing it gradually. I did not think it would be wise to go from 16% straight to 30%.

About fuel storage, I am keeping mine in the garage on the floor (with thick cardboard between bottle and the concrete floor, in a dark corner away from bright light. Will this be ok?

Any advice appreciated, thanks
 

Scrogg

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You can switch fuel nitro % no problem. There is no need to do it incrementally. Just richen up the engine and run it easy for a little bit, then retune for perormance.
As far as your fuel storage goes that is fine, unless it gets buttcold or really hot in the garage. I just keep mine in the house, no worries.
Your engine is a small block, the compression ratio on most small blocks is set for 20% fuel. You may need to add head shims or drop to a cooler medium temp plug to run 30%. Check your engine's manual to be safe. Too high of nitro content with too much compression will cause detonation.
 

Racer 1966

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Good advice from Scrogg. One note about storage,keeping away from bright light is good but it's also better if it's in a place with a more consistant temperature. Fuel can last a long time when stored properly, I'm running fuel that is almost 2yrs old now. Seriously. It's going fast now though, we've run more since Christmas than I did all of last year!
 

LosiLST

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It's going fast now though, we've run more since Christmas than I did all of last year!


Thats because your having some good father-son bonding!! Nothing better then getting your son into this hobby to enjoy it with! This hobby is fun alone but to an extent. It's always funner to bash with a buddy, and thats why the rise in fuel consumption. :D

Wish I could get my Dad into this hobby, he just looks at me and thinks I waste all my money. :(
 

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