Stock Radiator Fan CFM Rating
#1
Stock Radiator Fan CFM Rating
After some decent searching all I could find:
Per Sharif:
http://my350z.com/forum/4067798-post91.html
Does anyone have confirmation on the CFM ratings of the stock fans?
Thanks
Per Sharif:
http://my350z.com/forum/4067798-post91.html
Thanks
#3
#5
I'm not so certain to take the word of a performance shop let alone a dealership.. Have you met most of the people at dealerships? I think mentioning CFM would instantly lead to
![](http://msp90.photobucket.com/albums/k264/Sean_O_Vision/deedeedee.jpg)
It is in FI because who the hell else would care to know this?
By the way- after some google searches, I found something interesting. The High CFM rating on a stock 1998 altima is 1500CFM. Sam's mentioning/Sharif's mentioning doesn't seem that comforting.
![](http://msp90.photobucket.com/albums/k264/Sean_O_Vision/deedeedee.jpg)
It is in FI because who the hell else would care to know this?
By the way- after some google searches, I found something interesting. The High CFM rating on a stock 1998 altima is 1500CFM. Sam's mentioning/Sharif's mentioning doesn't seem that comforting.
#7
Trending Topics
#9
I'm not so certain to take the word of a performance shop let alone a dealership.. Have you met most of the people at dealerships? I think mentioning CFM would instantly lead to
![](http://msp90.photobucket.com/albums/k264/Sean_O_Vision/deedeedee.jpg)
It is in FI because who the hell else would care to know this?
By the way- after some google searches, I found something interesting. The High CFM rating on a stock 1998 altima is 1500CFM. Sam's mentioning/Sharif's mentioning doesn't seem that comforting.
![](http://msp90.photobucket.com/albums/k264/Sean_O_Vision/deedeedee.jpg)
It is in FI because who the hell else would care to know this?
By the way- after some google searches, I found something interesting. The High CFM rating on a stock 1998 altima is 1500CFM. Sam's mentioning/Sharif's mentioning doesn't seem that comforting.
#12
Once you have exceeded approximately 30-40 mph the fans become irrelevant, period. The fans function is to flow air through the radiator fins, that's it. This is useful and needed in slow traffic and when the car is at or near a stand still. Once the car is moving at a steady pace the fans become useless since the car is generating its own air flow through the radiator fins through the opening in the grill.
So in theory once the car is moving and generating its own steady air flow the fans then actually become more of a hindrance in air flow since the air would actually be more obstructed by a fan and it not being able to keep up with the increased air flow rate, if there was nothing there at all (fans) to obstruct the air flow then the cooling system would be even more efficient once the car reached a certain speed.
Fans obviously are needed on a car, that's for sure. But it is foolish IMO to spend any money on a mod like what those shops are trying to push on people.... the placebo effect comes to mind, LOL Plus not to mention all the problems with the relays and such those things have always had, what a joke. Save your money for mods that work like a larger capacity radiator or a lower temp thermostat, etc.
So in theory once the car is moving and generating its own steady air flow the fans then actually become more of a hindrance in air flow since the air would actually be more obstructed by a fan and it not being able to keep up with the increased air flow rate, if there was nothing there at all (fans) to obstruct the air flow then the cooling system would be even more efficient once the car reached a certain speed.
Fans obviously are needed on a car, that's for sure. But it is foolish IMO to spend any money on a mod like what those shops are trying to push on people.... the placebo effect comes to mind, LOL Plus not to mention all the problems with the relays and such those things have always had, what a joke. Save your money for mods that work like a larger capacity radiator or a lower temp thermostat, etc.
#13
BINGO, we have a winner You sir are on the right track. Especially the shops pushing this mod. It's also like the Nissan Pathfinder coolant bypass mod that doesn't work but it too is a gimmick to try to sell someone on. LMAO. People can be sold anything by the right salesmen.