Extra Fan late upright radiator

[prideaux]

Just wondering if anyone has any pictures of adding a push fan on the upright rad on a Taimar or 3000m or s leaving the engine fan as normal but for those rare very hot days when stuck in bad traffic sometimes even a modern car has problems coping and i just thought if you can overcome the chassis bar on that side to fit a switched emergency fan it would be good as if you stop to let the car cool down its a long wait as there is no fan running
Thanks

[phillpot]

Unless your quest is to retain an "original look" why not just junk the power sapping and, most of the time, unnecessary engine driven fan and go "all electric" ?

[prideaux]

phillpot said:

Unless your quest is to retain an "original look" why not just junk the power sapping and, most of the time, unnecessary engine driven fan and go "all electric" ?

Hi Phil
Your right its original look on the Taimar which i have achieved that i want to keep Phil even if the power output of nearly 200bhp is not
So its suggestions of what others have done if they have where they have added an extra hidden fan in front of the Rad as a pusher to help in those rare cases like i was last week in heat and Traffic for an hour and a half trying to get over the Betty bridge and Temp rose where fuel was vapourising and not idling.
Yes these situations are rare.

Yes when she goes to Ireland and the weather is a little cooler and usually traffic is not as big an issue but when you have a car built for someone else the desire is you give them the Best and cover all issues that may arise
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[oldgeebee]

Here's a picture of how mine's gone back together.



This is a Kenlowe fan that I fitted before she was laid up. As bought she had the engine fan as normal and then an electrical fan in front of the radiator under the spare wheel. When that failed I fitted the Kenlowe and removed the engine fan and cowl and she ran fine, hardly ever needing to cut in. The mounting rods supplied in the Kenlowe kit were a bit awkward to fit but eventually I used the old horn mounting lugs and mounted the horns on L-shaped brackets.
The only drawback is that the fan is quite large and has to be mounted low to miss the spare wheel so some of it's effort is wasted by blowing underneath the radiator. Since I didn't have overheating issues I wasn't too bothered by that. If overheating is and issue then 2 smaller fans would be better.

HTH

GB

[prideaux]

oldgeebee said:

Here's a picture of how mine's gone back together.



This is a Kenlowe fan that I fitted before she was laid up. As bought she had the engine fan as normal and then an electrical fan in front of the radiator under the spare wheel. When that failed I fitted the Kenlowe and removed the engine fan and cowl and she ran fine, hardly ever needing to cut in. The mounting rods supplied in the Kenlowe kit were a bit awkward to fit but eventually I used the old horn mounting lugs and mounted the horns on L-shaped brackets.
The only drawback is that the fan is quite large and has to be mounted low to miss the spare wheel so some of it's effort is wasted by blowing underneath the radiator. Since I didn't have overheating issues I wasn't too bothered by that. If overheating is and issue then 2 smaller fans would be better.

HTH

GB

Thanks Graham
Thats interesting
Just the kind of info needed i will have a closer look at the weekend and take some measurements and draw something up that will take 2 small fans then should we feel the need its a bolt on job when i visit in August rather than getting someone else messing around over there.
There is a solution to every problem just nice to compare others ideas.
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[griff 200]

If you need two small neat powerful fans look at ex honda fire blade they work well but don't forget that fitting fans will restrict the air flow for the rear engine fan to Some extent ?

[bluezeeland]

First of all my complements on the rebuild of the Taimar, she looks very good !

Re; fans, have you thought about moving the rad a bit aft ? This would require some adapted bracketry for the rad plus a slim enough fan to fit in between the rad and the crossmember of the chassis. (obviously without disturbing the engine fan)

One should also think about the source of the heat (aka the engine), correct fuel mixture and ingition/timing can prevent a lot of heat build-up.

That said, it is handy to have an extra fan to cool down, once stationary (could be an 'extractor' fan as well...........)

F

[prideaux]

bluezeeland said:

First of all my complements on the rebuild of the Taimar, she looks very good !

Re; fans, have you thought about moving the rad a bit aft ? This would require some adapted bracketry for the rad plus a slim enough fan to fit in between the rad and the crossmember of the chassis. (obviously without disturbing the engine fan)

One should also think about the source of the heat (aka the engine), correct fuel mixture and ingition/timing can prevent a lot of heat build-up.

That said, it is handy to have an extra fan to cool down, once stationary (could be an 'extractor' fan as well...........)

F

Thank you
I think the problem is not a massive issue and not something that needs addressing urgently it is probably not helping that she is a black car as she was better when i tucked in beside lorries for shade on Friday normal driving was great once the vaporising was eliminated i guess i just want it perfect.
looking at the issue the spare wheel does reduce the air flow somewhat to the top of the rad above the chassis rail so that location for two small powerful fans close to the rad in traffic would be very useful without effecting the air flow at speed so much as the spare already does that.
i will take a look before she leaves for her new home and make something up later and send over to fit.
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[bluezeeland]

Often thought that the 'problem' isn't getting cold air in, but hot air out (all the more proven by vapourizing)

Problem is that such cannot be achieved without visual impact (i.e bonnet vents)

[LLantrisant]

a modern electric fan can only work efficiant when its mounted flush onto the radiator...or if not possible to have a shroud around.

anything mounted with a gap...does not really work fine.

the original, water-pump, permanently driven one has another advantage:

on lots of (kit)cars the air is not guided towards the rad, surplus some rads are mounted far behind the nosecone.

and this is exactly the reason why the original belt driven one works better: due to its permanent vacuum it literally "forces" the air to move through the rad....

[prideaux]

Well I could not let him leave without a back up cooling fan so found 2 7inch power fans and fitted a bracket and used the foam pads between the bracket and the fins to prevent vibration fitted neatly under the top of the rad and the chassis bracket so totally invisible with the bonnet up so does not spoil the OE look I wanted to rather happy just wired to a dash switch as time did not allow for anything more he can get that fitted when he gets home



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