Blower Motor ?

[RotaryProphet]

Been thinking about my project car lately and the direction im going to take it. The conclusion of this thinking has resulted in the want/desire to turn my 88 NA into a weekend/track/autocross car with all the non essentials removed for weight purposes.

Ive already pulled all the 'accessories' that once came with my car and soon the stereo is next in line. But as Ive pulled everything underhood related to my AC components ive decided that the AC core under the dash was next, and subsequent thinking led me to believe I could also remove the logicon and with the heatercore locked into the 'defrost/floor' mode I could in theory just use a single toggle switch wired to the blower motor to run it at full power with full heat.

With the backstory out of the way, now comes the question:
How big of a relay would I need to use to keep from burning out my switch and wiring? Are we talking the typical 4/5pin 30/40amp automotive bits we use for electric fan 'upgrades', or something bigger?

[FirstRotaryExp]

Been thinking about my project car lately and the direction im going to take it. The conclusion of this thinking has resulted in the want/desire to turn my 88 NA into a weekend/track/autocross car with all the non essentials removed for weight purposes.

Ive already pulled all the 'accessories' that once came with my car and soon the stereo is next in line. But as Ive pulled everything underhood related to my AC components ive decided that the AC core under the dash was next, and subsequent thinking led me to believe I could also remove the logicon and with the heatercore locked into the 'defrost/floor' mode I could in theory just use a single toggle switch wired to the blower motor to run it at full power with full heat.

With the backstory out of the way, now comes the question:
How big of a relay would I need to use to keep from burning out my switch and wiring? Are we talking the typical 4/5pin 30/40amp automotive bits we use for electric fan 'upgrades', or something bigger?