3 questions

[supra88gr]

1. how much hp can a stock size radiator handle

2.my defi gauge(water temp) is reading hot but my stock is reading normal?

3. my defi oil pressure gauge reads perfect (according to stock numbers) but when i run the car for a long time then i come to a stop the car reads 0 oil psi?

thanks guys for all the help you can give me

 

[kamikazemkiii]

for the last one, it might be the switch or gauge, i switched over to an aftermarket