Novarossi PLUS.21-4BTTA TUNED 4 Port .21 Off Road Engine (Turbo) (Steel Bearing)
[NVRPLUS21-4BTTA-TUNED]

Average rating: 5 of 5 Stars!

Novarossi PLUS.21-4BTTA TUNED 4 Port .21 Off Road Engine (Turbo) (Steel Bearing)
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Merdith Roach - Rating: 5 of 5 Stars! Sunday, June 02, 2013
I don't know exactly what they changed from the plus-4 but it looks like the exhaust porting at the very least has been altered and this thing rips from bottom to top. fantastic engine for the price although 300 dollars is not inexpensive. In my opinion this engine excels on medium to larger tracks where top speed is important and a slightly smoother yet powerful power-band is needed. I would still choose the p5 for smaller tracks where instant torque is needed. the btta comes with a great dual [More…]
3 of 4 customers found this review helpful.
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