dynamic balancer for brake rotor

What rc nitro engine would be better between the ofna force .28 and the hpi 4.6 for a 1/8 truggy?

I know there are better engines out there, but I can get one of these for a $100 even? Between these two engine's which one would be better for track conditions? I go to track and just practice alot.
Which one is more reliable ,powerful, torgue


well really, they are the same engine ( as in displacement) but for relibility the Hpi 4.6 is reliable and fast ( its in the hpi savage x) but the ofna engine is also fast so really its a toss up. they are both good engines. get the cheaper one of the

Bernad's Twin Nitro OFNA GTP 2 RB TM928's Engine Test

Just a quick test of the motors since the clutch on one crapped out will have a video of the car running next week

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