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Home > Technical Chat > Which is better at cooling, Metro rad or mpi Rad?

minimole23

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Wiltshire

I fitted an MPI rad to my car last year and it ran too hot for my liking 80-85 degrees, So put the ever faithful minispares 2 core one back on and it stays nice and cool never more then 74 degrees. I run a 74 degree stat so obviously the cooling system is worked a bit harder, especially when it is a hot day.

I also have metro radiator, (not turbo) and wondered whether the metro one is any better.
The way I look at is is while the metro one has more surface area and a little more capacity, it is made of steel, not aluminium, so surely will not give heat up as easily.

has anyone done a direct swop between the two? Or put simply can the metro one keep things cool enough in traffic on a hot day?

What I don't want to do is butcher the front panel any more and then have to go through all the hassle of fitting the side mount again if it doesn't work!

Thanks

James

On 7th Oct, 2010 5haneJ said:
yeah I gave it all a good prodding


Joe C

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12307 Posts
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Carlos Fandango

Burnham-on-Crouch, Essex

the metro one deffo, due to its about twise the size.

On 28th Aug, 2011 Kean said:
At the risk of being sigged...

Joe, do you have a photo of your tool?



http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1

https://joe1977.imgbb.com/



Brett

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Doncaster, South Yorkshire

i went to watch the 7's and migs at Silverstone last year and all the 7's i got a sneak peak at had metro rads

Yes i moved to the darkside *happy*

Instagram @jdm_brett


dev 11

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Use the search function before buying stuff from me...

stoke on trent

85 isn't really hot though really


shellspeed

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580 Posts
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Surrey

Mpi rad only just worked on mpi's which is why you can get supercool versions as a solution to the issue. They have an updated core design similar to that of the mini spares side mount


minimole23

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Wiltshire




On 25th Jun, 2012 dev 11 said:
85 isn't really hot though really


In what context?

On 7th Oct, 2010 5haneJ said:
yeah I gave it all a good prodding


apbellamy

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King Gaycharger, butt plug dealer, Sheldon Cooper and a BAC but generally a niceish fella if you dont mind a northerner

Rotherham, South Yorkshire

mpi rad was not upto it on the van. we put a chinq rad on it. job done.

On 11th Feb, 2015 robert said:
i tried putting soap on it , and heating it to brown , then slathered my new lube on it

*hehe!*


wolfie

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Somewhere around Swindon

90 degrees is normal operating temp for most engines

Crystal Sound Audio said:

Why wolfie...you should have your name as Fuckfaceshithead !


"A common mistake that people make when trying to design something completely
foolproof is to underestimate the ingenuity of complete fools."-Douglas Adams


bennyy

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Doncaster, yorkshire

85deg is far from too hot.

Audi s4 b5 - 470bhp & 486ft lbs

On 15th Mar, 2012 wil_h said:

Yes, Carl says he gets requests for rimming all the time

On 30th Apr, 2012 Brett said:
yeah stick the bit in and give it a wobble *wink*


cossierick

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wakefield West Yorks

My mpi rad couldnt cope with the standard mpi, as soon as you pulled up at a set of lights the fan was on

rick


minimole23

4309 Posts
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Wiltshire

I measured the capacity of metro and mpi earlier and they actually both measured out at the same - about 550ml.

On another note while above 80 degrees isn't really hot, I'd like the temperature to remain relatively consistent.

On 7th Oct, 2010 5haneJ said:
yeah I gave it all a good prodding


Andy500

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Cheshire

I ran a standard mpi rad on my supercharged 1293 engine. It coped perfectly well which was a suprise really as the charge temperatures were high as well!

I used to run it between 90 and 95 though.


Sprocket

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Preston On The Brook



On 26th Jun, 2012 minimole23 said:



On 25th Jun, 2012 dev 11 said:
85 isn't really hot though really


In what context?



In the context that unleaded fuel burns better with engine temperatures above 90c.

Running engines at 70 or 75 degrees these days is an outdated throwback from leaded four star back in the 70s and 80s.

Edited by Sprocket on 26th Jun, 2012.

On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be...
So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'...


On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........


minimole23

4309 Posts
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Wiltshire

Well that is interesting.

Is that to say then that there is potentially some more power to be found running at more like 85 nowadays then?

Edit: don't know why I'm asking. I'm off to do some research!

Edited by minimole23 on 26th Jun, 2012.

On 7th Oct, 2010 5haneJ said:
yeah I gave it all a good prodding


Alex

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Woolavington, Zummerzet


On 26th Jun, 2012 cossierick said:
My mpi rad couldnt cope with the standard mpi, as soon as you pulled up at a set of lights the fan was on

rick


Errr, that's because that's how it works !
An MPi rad doesn't have a mechanical fan constantly blowing air through it like a side-mount does, so the moment the airflow through the rad drops (pulling up to a set of lights perhaps) the fan comes on to compensate. It's exactly the same as a Metro, or and other modern car.
The fan on my MG-260 comes on almost before I have come to rest, and the rad on that is enormous.

Metric is for people who can't do fractions.


metroturbo

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North Yorkshire

I have never had a car where the electric fan comes on as soon as you stop moving, and that includes the metro.


alpa

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Grenoble, France

I have a front mounted Metro rad (with interleaved fins), restrictors on both bypass and turbo cooling and the 88C thermostat all year long (from -10C up to 35C and on track). Temperature stays at 78-80C. The car was built 2 years ago I think.

std 998 A+, g295, MD266, RHF4, 109hp @0.8bar/5400rpm

Home > Technical Chat > Which is better at cooling, Metro rad or mpi Rad?
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