A/C - Heat Fan blower/motor upgrade...
Thread Starter
Junior Member
Joined: May 2020
Posts: 37
Likes: 1
From: Silver City, NM
Car: 89 Iroc Z G92
Engine: 5.7 HO
Transmission: 700R4
Axle/Gears: 3.43
A/C - Heat Fan blower/motor upgrade...
My A/C Heater fan is super weak. It works, and blow a bit but even on high its weak. Is there an upgrade for it or have any of you replaced yours with a better one from a different car?
Thanks - and yes I did look through some old threads but seemed it all had to do with switches...
Thanks - and yes I did look through some old threads but seemed it all had to do with switches...
Supreme Member




Joined: Jul 2006
Posts: 2,924
Likes: 803
From: 212 is up in this Bit@#
Car: Resto-Mod 1987 IROC-Z Clone
Engine: Alky fed L92 Vortec Twin-Turbo 6.8L
Transmission: My own built/ design 4L80M
Axle/Gears: Custom 12 bolt (4.10:1)
Re: A/C - Heat Fan blower/motor upgrade...
Does the Vehicle have Air-Conditioning?
If so, do you use the "MAX" setting instead of the "NORM" setting?
Have you had a look at the Blower-Motor?
There could be debris inside it, reducing performance...
or the Blower-Motor could just be tired and worn.
I do not believe there is a direct-fit "upgraded" Blower-Motor...
But something aftermarket could be made to work; or the Voltage to power the Blower-Motor could be increased.
If so, do you use the "MAX" setting instead of the "NORM" setting?
Have you had a look at the Blower-Motor?
There could be debris inside it, reducing performance...
or the Blower-Motor could just be tired and worn.
I do not believe there is a direct-fit "upgraded" Blower-Motor...
But something aftermarket could be made to work; or the Voltage to power the Blower-Motor could be increased.
Supreme Member
Joined: Jan 2006
Posts: 3,341
Likes: 12
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Long Winded
If you have the original evaporator its clogged with dust.
I'm not reccomending you remove it and clean it, the info is just FYI.
Servicing the evap can lead to plastic parts breaking, and insulation sealing problems.
What you can do easily is increase the wire size from its present 14 AWG to at least 10 AWG for the relay circuit.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Front Wheel Drive Is For Tricycles
I'm not reccomending you remove it and clean it, the info is just FYI.
Servicing the evap can lead to plastic parts breaking, and insulation sealing problems.
What you can do easily is increase the wire size from its present 14 AWG to at least 10 AWG for the relay circuit.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Front Wheel Drive Is For Tricycles
Thread
Thread Starter
Forum
Replies
Last Post




