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Old 09-26-2003, 08:44 PM   #1
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Default What Motor For A XXX-NT?

I am looking for a high performance .12 racing engine for my XXX-NT.
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Old 09-26-2003, 11:04 PM   #2
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Can't go wrong with a CVR or an MT12.
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Old 09-27-2003, 05:15 AM   #3
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Yes speedy Dave is correct however if you are going to get a mt-12 it is highly recomended to install a O.S. carb on it. If this is your first truck and you are new to offroad I would recomend a O.S. CV engine it is cheap and has more than enough power to race and it is very easy to tune and it is very forgiving.
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Old 09-27-2003, 01:04 PM   #4
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Thanks for the input! Is the O.S. CV engine a rear exaust or side? Also the Mach engine that came with the truck has some power but I have had it for a year and the piston and sleve are toast and I decided it would be better to just get a better engine as opposed to just repairing the Mach Engine. I am not new to nitro will I be disapointed O.S. CV?
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Old 09-27-2003, 09:02 PM   #5
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The CV is a side exhaust engine. I believe that the horsepower of the .12 CV-R is a little stronger than the .15 Mach but not much more. What you do get is a very good racing engine that puts out around one hp and is very reliable. It is also relatively easy to tune and holds the tune well.
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Old 09-28-2003, 12:09 AM   #6
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I'll put in a vote for the OS .12TR, I have one in my GT and my brother has one in his XXX-NT. It is rear exhaust, bump start only. It's supposed to be a touring car motor but we have both found it to have a great power band for off-road. The MT-12 puts out a hair more power, but the OS's power band just seems to be so much more usable. Just over a horse with a very linear power band. Very reliable and easy to tune. Can you tell I like this motor?
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Old 10-08-2003, 01:44 PM   #7
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i agree with speedy dave i would ether pick a mt 12 or a cvr
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Old 10-09-2003, 03:52 PM   #8
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Get the TR over the CVR, besides the CVRs are going out of production right now so they are very hard to get. I've been waiting 2 months for mine! But it is an odd model...short shaft-pull start-slide carb-.15.
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