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VX.18 compression good or bad ?

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Old 02-13-2008 | 08:13 PM
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Default VX.18 compression good or bad ?

Okay as we all know I mod the sleeve of my motor, which I had the electric start back plate on, do to the spring on my pull start sprung out, but I have since fixed the spring while waiting on parts to arrive and put the pull start back on, now when I pull the cord it seems like it has a lot more compression then before and I mean A LOT, you know like when you get more fuel in the motor and it seems like it wants to lock up when you pull the cord, so you have to remove the plug and drain what fuel is in the head ? well its almost like that but not as bad, is this good that it has this kind of compression ? like how you bore out a car motor and it rumbles like it's misfiring do to the high compression, I hope this is good and adds a lot more power to it, but what do you guys think ? I can't run it yet till I get the rest of my parts in and put back together. Thanks guys
Old 02-13-2008 | 08:18 PM
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Default RE: VX.18 compression good or bad ?

That's bad, it's not compression it's too much fuel in the cylinder. you said you have to take the glow plug out to get the extra fuel out of the head, that's a bad thing. YOu may have to lean out the carb to cut down on the amount of fuel going into the engine, you might be pulling in more fuel from modding the ports and opening them up more.
Old 02-13-2008 | 08:20 PM
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Default RE: VX.18 compression good or bad ?

NO NO there's no fuel in the motor, I'm pulling the cord with the motor off the Tsunami and it has high compression without fuel. I was useing that as a reference.
Old 02-13-2008 | 08:46 PM
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Default RE: VX.18 compression good or bad ?

OH, LMAO, well then if you put everything together properly then I would think it's a good thing, lol. Guess we'll find out when you get a chance to run it, lol.
Old 02-13-2008 | 08:50 PM
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Default RE: VX.18 compression good or bad ?

off topic wade check your PM
Old 02-13-2008 | 08:58 PM
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Default RE: VX.18 compression good or bad ?

If you pull the glowplug out does it still have an unusual amount of resistance??

PS: In a real car its the cam that gives it the crazy lobing idle, not compression.
Old 02-13-2008 | 09:02 PM
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Default RE: VX.18 compression good or bad ?


ORIGINAL: AffordableRC

If you pull the glowplug out does it still have an unusual amount of resistance??

PS: In a real car its the cam that gives it the crazy lobing idle, not compression.
LOL No but it sounds like the muffler is on top with it out, I'm telling you this mod seems to help the compression on this thing, it seems unreal.
Old 02-13-2008 | 09:24 PM
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Default RE: VX.18 compression good or bad ?


ORIGINAL: bluecaka69

off topic wade check your PM

I did, lol, check your now.

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