sure u can prevent wheelie by adjusting the slipper clutch, but yr car wheelie or not is a signal of setting yr slipper clutch. u need to use yr eyes and ears to set up a slipper clutch.
the purpose of slipper clutch is to protect yr car. The manual suggest u to loosen the slipper while there are too much wheelie. it means while there are too much wheelie, the slipper clutch is too tight, it can't protect yr car under this setting, so it suggest u to loss it.
If the slipper clutch is set too loose, the model will appear sluggish. For example, a loose slipper clutch will cause a model such as the E-Maxx not to wheelie from a standing start. If the slipper is used with a loose setting for extended periods, the spur gear could melt. ( http://www.traxxas.com)
i know u are not going to trust me, as i am friend of ftbingobingo.
these are some reference i found on traxxes.com knowledge base and RC car action forum
just wanna clarify that traxxas.com also said slipper clutch tightness is not the right adjustment to wheelie a car
according to some comment on other forum gear ratio, wheel size, center of gravity, motor output are the right thing to do so. ( on setting, not spec. )
thx bro smalljohndoe reminding us that tatame also know this theory
but bro nitortruck i think u are the one who still want 口舌之爭 now