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Old 01-19-2009, 05:19 PM   #1
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Default Picco .12 JL Red Dot & 30%

so, fellas, whats the deal: can i run 30% through my JL Red Dot? I have heard things about needing to shim out engines when running high % nitro and frankly i dont know what it really means. i guess bottom line is, will i need to do anything to my box stock never been fired Picco .12 JL Red Dot? thanks!
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Old 01-19-2009, 05:29 PM   #2
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look here http://www.rctech.net/forum/exclusiv...g-12-a-63.html

you will find your answer!

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Old 01-19-2009, 05:36 PM   #3
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ia m sure you probably could but i dont think you want to.. i would think that the high nitro percentage would be hard on that little motor
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Old 01-19-2009, 06:04 PM   #4
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From what I have seen & read I think it will be ok as the .21's need a head shim for the higher nitro content, IT WILL be harder on this motor with 30% and will wear it out faster, as for it being brand new, break it in like all the rest of your motors is this going in your crt.5???
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Old 01-19-2009, 07:14 PM   #5
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Originally Posted by Troubles Dad View Post
From what I have seen & read I think it will be ok as the .21's need a head shim for the higher nitro content, IT WILL be harder on this motor with 30% and will wear it out faster, as for it being brand new, break it in like all the rest of your motors is this going in your crt.5???
yes, it is already in. just dont have all the cash to fire it up and get it running right now being a broke college student and all
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Old 01-19-2009, 07:15 PM   #6
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Originally Posted by GREGORY! View Post
look here,you will find your answer!
well i looked, and, yep you didnt say anything so.... idk what your talking about

EDIT: ok you just posted it i appreciate the help!
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Old 01-19-2009, 07:16 PM   #7
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Originally Posted by heeltoedrver View Post
yes, it is already in. just dont have all the cash to fire it up and get it running right now being a broke college student and all

look my post!search the thread!
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Old 01-19-2009, 07:22 PM   #8
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look my post!search the thread!
i did, thanks for the help! ill likely run 25%
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Old 01-21-2009, 01:50 PM   #9
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it's shimmed for 30% and if you run 25% it still won't hurt the engine, I've made the change from 30 to 25 and run fine.
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Old 01-21-2009, 01:55 PM   #10
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it's shimmed for 30% and if you run 25% it still won't hurt the engine, I've made the change from 30 to 25 and run fine.
are you sure? im not saying you dont know what your talking about im just curious to know how you know because this far your the only one to say that. please dont take it the wrong way i really appreciate the input!
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Old 01-21-2009, 02:08 PM   #11
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-R2-

i see your an ofna tech, so you clearly know whats going on with the shimming. why did you go from 30% to 25%? also, i dont have the engine with me, or even in the same state as me, so maybe you know. the picco that came with the Pro-E kit i bought has a red head, is it still a JL red dot? were the kits shipped with any engine other than a JL red dot?
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Old 01-21-2009, 03:18 PM   #12
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the Jammin car does not come with a Jl but it is a 3 port, standard glow plug engine which still has enough power for the car, it has the torque like the JL but looses a few rpms down the straight (and I'm talking about a long straight)as for fuel I use 25% beacuase when they had the fuel shortage during to Olympics it looked like they only going to offer 25 and 20 so I went down and adjusted to the fuel but I can't see where I'm loosing anything when I changed.
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Old 01-21-2009, 03:18 PM   #13
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I would see the changes more for On-road then Off-road.
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Old 01-21-2009, 05:27 PM   #14
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the Jammin car does not come with a Jl but it is a 3 port, standard glow plug engine which still has enough power for the car, it has the torque like the JL but looses a few rpms down the straight (and I'm talking about a long straight)as for fuel I use 25% beacuase when they had the fuel shortage during to Olympics it looked like they only going to offer 25 and 20 so I went down and adjusted to the fuel but I can't see where I'm loosing anything when I changed.
what would you suggest i run in the 3port engine i have now? will i get a big difference between 20 and 25? what about glow plugs? is the name of the engine Picco .12R 3-Port? thanks i really appreciate the help
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Old 01-22-2009, 06:22 PM   #15
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Personally I run 20 % in my picco 3 port, and temps around 230-250 and I have no issues keeping up with the 1/8 buggies down a 150 straight away, so if this little motor was giving up any rpm's, that red dot must be a rocket ship, as I am looking for an 18tz and see if it will keep up with the truggy's, oh yea as for a glow plug I run the o.s. a-5

I like to play with the buggies, a good game of cat and mouse as you catch them and pass them, then wait for them to catch up again
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