I know this question has been asked before. However, I did read up on the previous posts. I am considering the Kanai Evo-2, Novarossi Plus 21-5, Ninja, and P5. I would like some opinions as to which of these engines would be best. Track is fairly tight with only one straight. Also, I want an engine that will last (this is very important)

Either of the P5's and you will be happy. The NR last forever and make power.

the c5 is a great motor but ive heard from some pro drivers that the new ninja's are just plain sick!!!

I'm tempted by the Ninja, but right now i run a JP FX B5 and it hauls ass!
i really don't see how you can make a 5 port engine run much better than this one i've got like 5 gallons in it and there's practicaly no wear at all.
A friend of mine got a sirio evo 2 and the crankshaft had a lot of play right out of the box an his carb gave him all kinda problems...
i would say get the Plus 21-5 it's the newest engine and i've hered nothing but good things about it. the ninjas aren't really available yet so if you're in a rush you gotta cross that one off.

acehardwarehobbies.com they have the new ninga mills in stock 309.00

is the ninja faster than the RBC5 ? I've heard that the C5 or C6 have great power, but how is the top end ? better than the 21-5 plus

I think the C5 C6 is the most powerful .21 engine available. The Novarossi 421B is also awesome it has mega bottom end and insane power all the way through the power band. The JP FX21 is a lot calmer, It has a smooth powerband and is easier to control and ideal for tecnical tracks.

The point I'm making is somtimes you can have too much power, as it is harder to control.

I agree 100% with that.

You have for example RB S7, its a great engine and very smooth to drive. And it is cheaper than "top engines"

you are a little off here. The 421B has insane TOP end, soft on the bottom compared to any P5 based engine. JP FX21's are powerhouses whether they are stock or mods.

Hi dolfan13,
i just noticed your in ft. worth, do you race at johnny cool guys?

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I havent tried the P5, But I know the 421B has awesome bottom end as I've had two. The bottom end is a lot better than RBWS72 and JP FX21. It is a very fast aggressive engine off the mark and right through the full powerband.
To be honest I think my driving is better with the JP as it is smoother and calmer and easier to control.

Im new to buggies, just built my first one, had help from other here on the board. I went with the RB C5bb engine in the ofna hyper 8. Being new to buggies, its hard to say what engine is better. I do know that I catch every buggy on the track on the straights, I just flip and tumble on the jumps. Everyone says its to much power for one to learn on, but the way I see it, if one has never run a buggy, whos to say its to much.
All engines replied on in this thread are great engines, I see them all at my local track and cant see how one could go wrong with any of them.