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Old 05-15-2008, 11:55 PM   #1
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Default Just a question about a few .21 mills

I should be getting my buggy sometime next week and when it comes in going to purchase a new .21 engine. Question though...compared to the RB S5 (which I have owned in the past and ran) is the S7 for the price worth getting or would the Novarossi RX21P5 be the better choice? I run at Wolcott Hobby track in CT though from what I noticed you can get away with a lesser expensive mill on the track such as the Novarossi N21B mill. With that being said the N21B is no slouch - seen this thing ran in my friends MBX5 prospec. With fuel consumption on my mind as well as overall consistency what do you offroaders prefer?

The Novarossi RX21 P5



Otherwise I may just go with a "low budget" engine like the N21B or OS .21 VG.
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Old 05-16-2008, 05:08 AM   #2
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Whatever you do, do NOT get a OS .21 VG. They lose there compression way to quickly. I have had 2 thinking I got a bad one and they were the same. Did not last even 2 gallons. Try out a Go Tech .21 they have awesome power close to the italian motors at about half the price.
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Old 05-16-2008, 06:42 AM   #3
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I am in the same boat. I have been running an RB S5 for the past 1.5 years, which is a great engine, but it is too expensive to rebuild. A few guys at our local track run the go-tech 5 port turbo's. They have about the same power, longevity, etc. as everything else but only cost about $200 and a new piston/sleve/rod is only $99.

If you are set on the P5 or S7, either would be a good choice.
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