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Radiator required to fill space 700x280mm, suggestions?
MK9R - 15/6/11 at 06:12 AM

Since new engine install the old polo rad isn't up to the job, i've already increased the oil cooler size and improved the ducting but its just not working. I have an available space of 700mm wide x 250 high, obviously i can incline it to take a higher rad. Ideally i'd like a lightweight alloy rad, but also i dont want to spend a fortune (as there is a good chance it will get fubared soemtime soon . I've been looking round and a mkII MR2 rad looks like it may just fit, but i've not got exact dimensions. Any other suggestions??

HowardB - 15/6/11 at 06:27 AM

how about two smaller rads? maybe two bike ones, might be a more flexible solution,...?

hth

gavin174 - 15/6/11 at 07:10 AM

this any good..

Westfield VW Polo Alloy Radtec Universal Radiator | eBay UK

direct replacement and not that expensive

MK9R - 15/6/11 at 07:25 AM

not at that price The polo rad just isnt a nice fit in the front of my modified fury front end, which is partly the reason for the bad air flow IMO

Dingz - 15/6/11 at 07:28 AM

Just a thought are you sure that you have enough holes to let the hot air out? are you getting a good airflow through the existing rad?

MK9R - 15/6/11 at 07:31 AM

quote:
Originally posted by Dingz
Just a thought are you sure that you have enough holes to let the hot air out? are you getting a good airflow through the existing rad?


Yeah flow is fine, removed undertray in engine bay as thought this was partly to blame. The rad is also a bit battered so think this is another factor, but the fact is the car always ran nice a cool with the blade engine, but the new. R1 is gettimg too hot, so purely gotta be rad isn't upto the job

rachaeljf - 15/6/11 at 08:43 AM

A VW Scirocco rad is the one we X1/9 owners go for, light and cheap. The Punto GT is another possibility.

Cheers R

stevebubs - 15/6/11 at 08:48 AM

Austen,

You have mail with a radiator sizing csv...has sizes for most rads in it...

Personally I just went down to the local motorfactors and looked through their Valeo catalogue...

Stephen

stevebubs - 15/6/11 at 08:50 AM

PS I ended up with a Seat Cordoba rad for my Fury...keeps my zetec nice and cool and is a very good fit behind the grill...

hughpinder - 15/6/11 at 08:56 AM

I bought one for a ford focus (575*225) which is all alloy cores with decent gap between fins. There was a stand at Newark selling a whole host of rads. Mine was £15 (new)

The other possibilities for the engine getting too hot are:
Water pump not giving good flow.
Insuffient coolant in the water.
Thermostat stuck/blocked.
Airlock so engine isn't fully cooled.
Fan seized or running the wrong way.
And probably a host of other cooling things - could also be incorrect timing/fueling causing the engine to produce too much heat too.

I'm assuming you would have spotted kinked or collapsed pipes/hoses.

Regards
Hugh

MK9R - 15/6/11 at 10:47 AM

Thanks all, looks like a 205 one will fit nicely!!!!

James - 15/6/11 at 03:06 PM

The Mk2 Golf rad is same hose sizes etc. as Polo but 50mm wider. I used this one myself just to be future-proofed in case I upgrade engine and need the cooling.

Also, according to PPCmag article on cooling/rads if you set the rad top at 20° back from vertical then you get much better cooling as the cool air can reach the rear core of a twin core without being so blocked by the front core!

HTH,
James

ss1turbo - 23/6/11 at 06:58 AM

quote:
Originally posted by stevebubs
Austen,

You have mail with a radiator sizing csv...has sizes for most rads in it...

Personally I just went down to the local motorfactors and looked through their Valeo catalogue...

Stephen


Without being cheeky...any chance of a copy of the file? Would give me a starting point (was doing a search for an online radiator catalogue and this thread popped up). Does it have cooling capacity (need one for a X30XE Vauxhall lump) listed, or just the original application?

Cheers,
Phil

SausageArm - 24/6/11 at 06:20 AM

Vauxhall Corsa uprated alloy radiator, 280mm high, 620mm wide, 43mm thick

Vauxhall Corsa Uprated Alloy Radiator GSi Turbo C20LET | eBay UK