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Originally Posted by jmollila
(Post 9442974)
Unfortunately it appears my issues were due to being <--censored--> when I bought my engine off ebay. Yes, I learned that was mistake #1. There is practically no compression left in thing after only about a half gallon of fuel.
Anyway, time to move forward. I was looking at doing a rebuild. How much life will this give back to the engine? Just trying to figure out if its worth the $75-100 or if I should just scrap the engine and buy a new one. |
Well I found someone local that is highly recommended in the racing community. He is going to inspect the whole engine and give me his recommendation on what to do with it.
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Has anybody run the reedy 121vr engine on a truggy? How is it? I saw a good deal on this engine and thought I might give it a try. What pipe should I run it with?
Thanks |
I run it in my RC8T with a 2039 tuned pipe... I love it :) Good top speed and good torque.
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Originally Posted by Losimoe
(Post 9477629)
Has anybody run the reedy 121vr engine on a truggy? How is it? I saw a good deal on this engine and thought I might give it a try. What pipe should I run it with?
Thanks |
is it ok to run byrons 20% nitro with 16% oil in the vr version engine. because that is what i got today. i have not started or broken it in yet. just wanted to ask before i started it for the first time with this fuel. thanks chris
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Yes it is safe :)
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thanks. do you know what the extra head shim is for?
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This is to eliminate possible predetonation with 30% nitro fuel.
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If any body is interested in the 121vr-st engines let me know. I have two NIB that I would like to part with, for the right price of coarse.
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so the stock head shims are what i should use for 20% nitro.
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Originally Posted by christmaxx
(Post 9585071)
so the stock head shims are what i should use for 20% nitro.
For 20%, you can break it in as it comes and then switch to the .40 shim, but likely stick to the RT3 / P3 plugs since you're running less nitro content. |
ok the engine is sticking at top dead center when im trying to break it in. i have heard of using a heat gun to loosen it up. but where do i point the heat at on the engine and will it melt the platic parts near the engine.? and if not how long should i heat the engine up for? thanks
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Originally Posted by christmaxx
(Post 9591655)
ok the engine is sticking at top dead center when im trying to break it in. i have heard of using a heat gun to loosen it up. but where do i point the heat at on the engine and will it melt the platic parts near the engine.? and if not how long should i heat the engine up for? thanks
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thanks i will try doing that. first .21 engine. so used to traxxas 3.3 this is new to me.
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