whats the maximum safe temp on a b16a ??

99c ? or is to much

 

Stock is best.

I don't understand what you are trying to accomplish.
More info please.

 

If the b16a can run at 100c for a while without damage something

 

Thermostat opens at 90c.
100c is the boiling temp of water (converts to 212f).

Average cooling fan switch kicks on at 191~197f (per Honda service manual for D-series, but probably the same for B16).
The engine takes a while to cool down, especially in warmer climates, so those engines will see 220f on occasion.

So really you are just going to be running about 15 degrees f hotter than normal.
You should be fine since you say only for 'a while'. Permanently or for a very long duration of driving it wouldn't be a great idea.

Water boils at 100c so make sure you are running 50/50 coolant mix. That raises the boiling point to about 129.5c

If you were hitting something like a constant 240f (115c) then there would likely start to become a problem.

 

thanks