I have been using the composite oven i built to also bake the lacquer, however I cant really see any guides on the max temp we can bake lacquer to.

Im using a good quality Acrylic , the higher the temp the less long term print through i seem to get on my X-preg parts.. i've so far resisted the temptation to Bake the lacquer to 120deg c and only taken it to 85 deg c.

Anyone one have some experience or words of wisdom?

Your best bet is the OEM TDS if available.  A quick google and some "standard lacquers" seem rated to around 80C but only about 20% of what I could find actually listed any temperature data on the TDS at all. 

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant

What clear coat are you using ?

They all bake different depending on the hardener you have chosen and if any thinners have been added.

I own a body shop and as standard all clears are baked at 60 c 45 mins then cool down is another 15 mins . This would be a slow hardener and fully cured but tack free would be 25 mins say. Fast would be fully cured at 35 mins. This all depends on what clear you have and hardener plus when you want to handle the items etc. Some new clears are air drying and ack free in short times too but still limited products available.

Note any higher temps does speed it up but actually causes more problems of over baking and lifting possible delamination or skinning over.