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-   -   Underdrive Pulley and Cooling? (https://www.rx8club.com/series-i-aftermarket-performance-modifications-23/underdrive-pulley-cooling-125253/)

Silver_Surfer 08-25-2007 12:30 AM

Underdrive Pulley and Cooling?
 
Anyone thinks their car runs cooler with the pulley change? I know there was a thread and the topic of "Cavatation" came up but with no real answers. I dont have an underdrive pulley but thinking of geting one. My thinking is in addition to the 1-2hp gain and cavatation issues might the engine run cooler because the coolant is staying in the radiator longer and able to get cooler?

Brettus 08-25-2007 12:48 AM

I doubt very much that it makes much difference even if some cavitation is present with the stock pulley .

Jon316G 08-25-2007 01:14 AM

I have the Agency underdriven pulley and don't notice a difference

Silver_Surfer 08-25-2007 05:09 PM

Thanks Guy!
^Jon316G how much city driving do you do? While in the city howz the AC? Still as cold?

PerformRX-8 08-25-2007 05:44 PM

i've got the onorthodox underdrive pullies, and to be honest all it does is add more throttle power. My AC is the same as when i drove it off the lot....

Jon316G 08-25-2007 06:35 PM


Originally Posted by Silver_Surfer (Post 2028867)
Thanks Guy!
^Jon316G how much city driving do you do? While in the city howz the AC? Still as cold?

Mainly ~20 miles city and ~40 miles highway (work and back) and I don't notice a difference in temp going from the highway to city streets.

Silver_Surfer 08-25-2007 06:44 PM

Thanks again!:ylsuper:

olddragger 08-26-2007 05:20 PM

it is a known fact that our pumps cavatate at about 6K---how much time do you spend over 6K? Up to you.
olddragger

Galen Darkmoon 08-27-2007 12:51 AM

an over drive pulley only way to go

Brettus 08-27-2007 01:01 AM


Originally Posted by Galen Darkmoon (Post 2030212)
an over drive pulley only way to go

overdrive ?

HCTR154 08-27-2007 01:01 AM

I have the SR motorsports pulley set. I picked them up (at a bargain price) from someone here on the forum because he was selling his car.

After installation, I noticed absolutely no difference in anything! However, I realize that underdrive pulleys for this vehicle are a "feel good" modification and I can never seem to get enough of those.

The Agency Power underdrive pulley seems to be a favorite, go ahead and try it.


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