Radiator and AST caps
05-17-04, 06:27 AM
#1
Full Member
Thread Starter
Join Date: Mar 2003
Location: Silent Hill
Posts: 206
Likes: 0
Received 0 Likes
on
0 Posts
Radiator and AST caps
How come i see on websites that FDs were recalled for a cooling system upgrade and the radiator cap was changed from 1.3 bar to 0.9 bar..
Now i was thinking of getting an aftermarket better performing cap and i notice that greddy and Blitz are offering caps which are 1.3 and 1.2 bars respectively...
Why is that?
Also where should i get the caps from??
Now i was thinking of getting an aftermarket better performing cap and i notice that greddy and Blitz are offering caps which are 1.3 and 1.2 bars respectively...
Why is that?
Also where should i get the caps from??
05-17-04, 06:44 AM
#2
Full Member
Thread Starter
Join Date: Mar 2003
Location: Silent Hill
Posts: 206
Likes: 0
Received 0 Likes
on
0 Posts
Also if i go for the Pettit racing AST...
What if after a very long drive or a hard run i turn the car off and open the hood and with the lever cap vent the pressure.. would that be good or bad?? would that keep the temperatures cooler??
Any comments...
What if after a very long drive or a hard run i turn the car off and open the hood and with the lever cap vent the pressure.. would that be good or bad?? would that keep the temperatures cooler??
Any comments...
Last edited by Bathurst; 05-17-04 at 07:04 AM.
05-17-04, 08:11 AM
#3
Here's a good post about the recall:
Originally posted by spurvo
Original rad cap pressure WAS 16 lbs from Mazda. After the cooling system recall, they dropped it to 13lbs. The higher pressure allows slightly more efficient cooling (raises the boiling point of the liquid), but at the potential cost to the rest of the system due to fluctuations. Most folk go with the 13lb cap for safety. Besides, if you are relying on three more lbs of pressure to cure your cooling woes, you have more serious problems. 13 lbs and decent radiator, good caps and hoses, 70/30 water coolant mix should perform FINE in all but the worst stop and go. Then the fan mod takes over nicely
Original rad cap pressure WAS 16 lbs from Mazda. After the cooling system recall, they dropped it to 13lbs. The higher pressure allows slightly more efficient cooling (raises the boiling point of the liquid), but at the potential cost to the rest of the system due to fluctuations. Most folk go with the 13lb cap for safety. Besides, if you are relying on three more lbs of pressure to cure your cooling woes, you have more serious problems. 13 lbs and decent radiator, good caps and hoses, 70/30 water coolant mix should perform FINE in all but the worst stop and go. Then the fan mod takes over nicely
Thread
Thread Starter
Forum
Replies
Last Post
The1Sun
1st Generation Specific (1979-1985)
7
09-18-15 07:13 PM