Fan Pulley size
Le Mans Master
Joined: Aug 2017
Posts: 8,336
Likes: 2,810
From: Cool Northern Michigan
I don't believe so. Should all be the same size. Your overheating issue at idle is something else. GM water pumps do a wonderful job of keeping up. A plain Jane pump pulley off a 170 horse will handle 500 horse easily.
Overheating at idle: is a air circulation issue.
Overheating at speed: is a water circulation issue.
Sometimes its the simplest things that cause problems. When was the last time the outside of the radiator was force cleaned backwards with compressed air? Are all the foam rubber seals in place? Clutch fan operating correctly? Ign Timing set too late?
Overheating at idle: is a air circulation issue.
Overheating at speed: is a water circulation issue.
Sometimes its the simplest things that cause problems. When was the last time the outside of the radiator was force cleaned backwards with compressed air? Are all the foam rubber seals in place? Clutch fan operating correctly? Ign Timing set too late?
Thread Starter
3rd Gear
Joined: Oct 2018
Posts: 3
Likes: 0
I don't believe so. Should all be the same size. Your overheating issue at idle is something else. GM water pumps do a wonderful job of keeping up. A plain Jane pump pulley off a 170 horse will handle 500 horse easily.
Overheating at idle: is a air circulation issue.
Overheating at speed: is a water circulation issue.
Sometimes its the simplest things that cause problems. When was the last time the outside of the radiator was force cleaned backwards with compressed air? Are all the foam rubber seals in place? Clutch fan operating correctly? Ign Timing set too late?
Overheating at idle: is a air circulation issue.
Overheating at speed: is a water circulation issue.
Sometimes its the simplest things that cause problems. When was the last time the outside of the radiator was force cleaned backwards with compressed air? Are all the foam rubber seals in place? Clutch fan operating correctly? Ign Timing set too late?
