If you buy a .28 engine your going to beat the crap out of your drive train.
I don't think you can go wrong with most .21 engines, I just Know .28 will do more harm then good.
Wouldn't you rather have Nova quality anyways?
Nova sells a 5 port Turbo plug budget conscious engine with good power for less then $200 Novarossi N21-5T .21 5-Port turbo Engine
Here is a link. I know at least 5 people who have run that engine.
http://www.absolutehobbyz.com/produc...oducts_id=9178
If you can afford a few dollars more here is another good engine.
Novarossi Kangaroo Rally .21 7 Port Trubo Steel Bearing
http://www.absolutehobbyz.com/produc...oducts_id=5373
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After you stay with it for a season, and want more power come back we can help steer you to MORE
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