Guigsy Posted July 16, 2009 Share Posted July 16, 2009 (edited) Ok. so i found out today my Fluidyne rad is buggered. And i need a new one. Stock one is about £300 quid i think where as the fluidyne is nearer the £450 mark. Whats the advantage of the fluidyne rad over a stock one? mine was already fitted when i got the car. Considdering im not working at the moment im thinking of going back to stock. But am i going to get any problems with it (currently running almost 400bhp.) Am i going to loose any cooling performace or power? Reading on the whifbitz shop they say for Koyo/Fluidyne rads that if you have a FMIC and intend to do things like trackdays then you should go for one of those. So i guess ill be paying a bit more then. Edited July 16, 2009 by Guigsy (see edit history) Quote Link to comment Share on other sites More sharing options...
Guigsy Posted July 16, 2009 Author Share Posted July 16, 2009 Anyone? need to know by tomorrow so i know what to do. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted July 16, 2009 Share Posted July 16, 2009 I guess if you are running big horsepower and have a large FMIC the larger alloy rad could be beneficial, but otherwise i really cant see the need, i still run a std rad with a single setup, but side mount IC. Quote Link to comment Share on other sites More sharing options...
Guigsy Posted July 16, 2009 Author Share Posted July 16, 2009 thanks. I have my answer now anyway. Stock it is Seems to be one of these myths... a bit like aftermarket air filters Quote Link to comment Share on other sites More sharing options...
Rinus Posted July 17, 2009 Share Posted July 17, 2009 My stock rad was buggered, and fitted a Koyo rad (very good quality!!) really pleased with this, don't know how much cheaper a stock one is, but would go for a koyo rad. Also got an fmic fitted and no cooling problems anymore at all... I don't think its a myth! stock rad will not be good enough when you use the max out of the engine for more than 15minutes?? correct me if I'm wrong Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted July 17, 2009 Share Posted July 17, 2009 The stock rad certainly doesn't like a FMIC. I have a spare Koyo rad if anyone is interested. Quote Link to comment Share on other sites More sharing options...
Guigsy Posted July 18, 2009 Author Share Posted July 18, 2009 Got the car back today. Nice shiny stock rad. And i run a FMIC and temps were fine. At the end of the day (and this has been confirmed to me by a few people, who i wont mention because they dont want to get into a forum argument) the stock rad is copper and denser than the aftermarket ones which are aluminium, not as dense and not as well made. The garrage also got a quote for a replacement koyo (twice the price as a stock one) and he had a look at them and he didnt rate them at all when compared to the stock one. Seems a no brainer to me. Copper is a better heat conductor after all... Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted July 18, 2009 Share Posted July 18, 2009 Got the car back today. Nice shiny stock rad. And i run a FMIC and temps were fine. At the end of the day (and this has been confirmed to me by a few people, who i wont mention because they dont want to get into a forum argument) the stock rad is copper and denser than the aftermarket ones which are aluminium, not as dense and not as well made. The garrage also got a quote for a replacement koyo (twice the price as a stock one) and he had a look at them and he didnt rate them at all when compared to the stock one. Seems a no brainer to me. Copper is a better heat conductor after all... Nice good result. It's not as thick as the better aftermarket ones though, and I noticed a massive difference in water temps after fitting a SS rad. That might be because mine was fooked though. Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted July 18, 2009 Share Posted July 18, 2009 Oh and BTW, what was the exact problem with the Fluidyne? Quote Link to comment Share on other sites More sharing options...
Guigsy Posted July 18, 2009 Author Share Posted July 18, 2009 It split along the top somewhere, only small and then corroded. Still cooled the car ok so i didnt spot the problem. And then eventualy gave in totaly and i believe it kinda collapsed all along the top. Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted July 18, 2009 Share Posted July 18, 2009 It split along the top somewhere, only small and then corroded. Still cooled the car ok so i didnt spot the problem. And then eventualy gave in totaly and i believe it kinda collapsed all along the top. What do you mean by "gave in totally"? I find it hard to believe the same model Fluidyne which is on my car would do the same TBH. In fact, sounds like what my stock one did. Quote Link to comment Share on other sites More sharing options...
Guigsy Posted July 18, 2009 Author Share Posted July 18, 2009 i mean the small area of corrosion got bigger and then i guess couldnt hold the pressure? I dont remember excactly what the garrage said. but it was something like that. I didnt see the rad as when i pickd my car up they had locked the garrage up and just waiting for me to pick the car up before they went home Quote Link to comment Share on other sites More sharing options...
nigelboyne Posted July 21, 2009 Share Posted July 21, 2009 so what is the outcome i have stock rad running 1.2 / 1.4 bar boost is the stock rad up to the job Quote Link to comment Share on other sites More sharing options...
Thorin Posted July 22, 2009 Share Posted July 22, 2009 The stock rad is perfectly fine, it's just that with them being up to 15 years old now they're failing quite often. Something like the fluidyne is arguably better if you've got a FMIC in front blocking airflow, but unless you're having problems with it overheating on spirited runs there's nothing to worry about. Quote Link to comment Share on other sites More sharing options...
nigelboyne Posted July 22, 2009 Share Posted July 22, 2009 cheers thanks Quote Link to comment Share on other sites More sharing options...
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