first off, i am not hating... for two reasons, one that word sucks, two just posting my opinion on what i think. i just doubt roush would go thorugh the trouble of using a larger tb to obtain more hp, and not max it out... what purpose would they have not to use the most efficient tb? don't you think they would have loved to pull another 5-10 hp out of the engine with something as easy as a larger tb? Don't you think they didn't use plots, and anayalsis for choosing the proper size of the tb? using a larger tb doesn't cause any noise, or driveablity issues that they might be avoiding. it just doesn't add up. even sho-shop only went to a 63mm throttle body and they upped displacement by a half litre. I would love to see the dyno plots for this, because i bet this thing really bogs from 0-3250 rpm in the torque range, and then looses hp from there on out... just get the graph over the original tb on the same car at the same time...
