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Dec 13, 2013 11:28 am
Dec 13, 2013 11:28 am
Subject: Re: Water Pump Modification
The setup I've gone with is a Revotec thermostat at the bottom outlet of the rad with a 16" 80A electric fan which pushes through around 2100CFM , this sits in front of the rad. The Revotec thermostat is an adjustable inline type rather than the capillary type (which I think looks crude).
The Rapide radiator is ducted on both sides, though on the engine side the cowl is designed to fit the mechanical fan. I have removed the mechanical fan as I don't think it will add benefit when needed and may further restrict air flow. In slow traffic on a hot day the mechanical fan is spinning slowly when you really need it to be fast. I've only tried the new fan a few times but it seems to work well letting the engine run up to around 93 and then bringing it back down to around 88...ish.
Also a mechanical fan reduces the HP by around 5%.
I'll let you know how I get on.
The setup I've gone with is a Revotec thermostat at the bottom outlet of the rad with a 16" 80A electric fan which pushes through around 2100CFM , this sits in front of the rad. The Revotec thermostat is an adjustable inline type rather than the capillary type (which I think looks crude).
The Rapide radiator is ducted on both sides, though on the engine side the cowl is designed to fit the mechanical fan. I have removed the mechanical fan as I don't think it will add benefit when needed and may further restrict air flow. In slow traffic on a hot day the mechanical fan is spinning slowly when you really need it to be fast. I've only tried the new fan a few times but it seems to work well letting the engine run up to around 93 and then bringing it back down to around 88...ish.
Also a mechanical fan reduces the HP by around 5%.
I'll let you know how I get on.