Originally Posted by
air8
A friend of mine bought a Non-Tuned GRP with mods from Mark at Powerhouse. Unfortunately he never had a good day with that engine. I'm not sure where the problems lies cause I've only watched his frustration. Actually he's owned the engine for several months now and hasn't had a chance to try it out in race conditions cause he has problems all the time during practice, so he swaps engines before the quals start. IDK.
On the other hand I read on here about how many people love the non-tuned .21. I wouldn't see why an engine would have problems though, unless it was not properly broke in, mistreated, or manufactured wrong. Too many variables to say exactly.
you some time's have to consider who's had their finger inside the motor....Not saying Anything in particular....but thing's can happen when you cut excessive amounts of material from certain motor's.
