Originally Posted by NDHotbodies

I don't think you will be disapointed with the Dynamite P engine either the 21 or 28.. as I said earlier the one in my truggy has 2 seasons on it and still runs great. I plan on racing over in Minn. at the RHR series useing the same engine.. as I said earlier also, I'm not being partial to one brand of engine, we have RB c6s, GRP.21 axial 12, mach 26s, and also a sportwerks .21 in our mayhem thats 4 years old and still runs great..

Originally Posted by x195svt

I would look seriously look hard at the Jammin jpx 21. I have seen videos on you tube of them in truggies and they are very fast. They normally sell for 229 on Amain but with the 10% off that will be about 206. I heard of people getting 12+ gallons on the picco based engines. This is probably going to be my next engine.
I run the N21B now in my buggy and it's a good engine and it will run forever without flameouts but it's not the most powerful engine out there. I know the go 5 port suggested by Alan Burton is a strong engine as well but I don't know as much about the Go's unfortunatly.

Originally Posted by RickBac

From what I understand, sportwerks is closing if it is not closed already. So be aware, repair parts might be hard to find. I would go with the Dynamite .21 or the 3 port Nova. Both are good engines and will push your ST-RR around. They will get good gas milage also. As you get better, upgrade to the Ninja, VSpec, GRP or higher dollar Novas. Have fun!