Twin rad fans on S1

Sanjøy · Post by **Sanjøy** » Thu Nov 16, 2006 10:51 am

Will be changing the rad over soon (leaking) and the clam will be off. Read on Exiges.com about a lad who had his a/c button on the dash rigged up to a second cooling fan. He cited his reasons as cooling when in traffic and also for cool down laps.

I am tempted to do this also as a preventative measure (98R) should the other fan fail and to avoid a clam off repair.

Costs involved should be low.

Thoughts ?

SP

r055 · Post by **r055** » Thu Nov 16, 2006 10:57 am

seen this on a car on pistonheads the other day.
It was a manual override switch so only just the one fan i think...

http://www.pistonheads.com/sales/112495.htm

Rich H · Post by **Rich H** » Thu Nov 16, 2006 11:01 am

Manual override would be much simpler TBH, no mincing about cutting things up.

Something that would be more useful if you want to complicate things would be a remote thermostat with an electric bypass pump (The S2 with VVC has one, 111R/S? I dunno

Also the motorsport elise had one IIRC) to keep the water moving when you switch off.

Rich

Sanjøy · Post by **Sanjøy** » Thu Nov 16, 2006 11:12 am

Looking to increase redundancy and also to be able to quickly cool the car.

Dominic · Post by **Dominic** » Thu Nov 16, 2006 11:20 am

RICHARDHUMBLE wrote:Manual override would be much simpler TBH, no mincing about cutting things up.

Rich

Someone mention cutting things up?? Reaching for Mr Angle Grinder

Rich H · Post by **Rich H** » Thu Nov 16, 2006 11:21 am

Mine comes down from 102-88 in about 1-2 minutes never going above 102, quick enough I would think. A manual o-ride would do the same in that you could run the fan regually. I have read about siezed fans, but a regular run would help prevent this. While the engine is running then you have coolant moving one fan should be ample.

Remember that a stationary fan disrupts the flow through the rad so you may actually get a higher temp while moving...

That said 2 fans would help while stopped. I still like the idea of keeping the coolant moving for a few mins after switch off.

All IMHO of course!

Rich

Rich H · Post by **Rich H** » Thu Nov 16, 2006 11:22 am

Dominic wrote:
RICHARDHUMBLE wrote:Manual override would be much simpler TBH, no mincing about cutting things up.

Rich
Someone mention cutting things up?? Reaching for Mr Angle Grinder

Ali rad vs Hamish....