Radiators
Author
Discussion

Howard-

Original Poster:

4,964 posts

224 months

Friday 26th February 2010
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Evening all

It wouldn't surprise me if the radiator in my '5 hasn't been changed in 20 years, so I was thinking I'd replace it (and the coolant) with a nice shiny new one, especially having boost 'n all. It's OK in this weather but I fear come the summer (what summer, I hear you say. Yeah, I know what you mean hehe ) it might get a little hotter.

Now then, should I just get a standard radiator, aka http://www.mx5parts.co.uk/product_info.php/product... or http://www.mx5parts.co.uk/product_info.php/product...

Or something aftermarket and more efficient?


Cheers

It's a mk1 1.6 manual, supercharged but not intercooled.

skinny

5,269 posts

257 months

Friday 26th February 2010
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personally, if i'm spending money then to me there's no point buying a stock bit

the s/c will put a bit more of a strain on the engine, you're pumping in more fuel and air and getting bigger bangs which make more heat. i'd want to take it out with an uprated rad smile

Howard-

Original Poster:

4,964 posts

224 months

Friday 26th February 2010
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This was my thinking also

I need suggestions smile

Oldwolf

1,005 posts

215 months

Sunday 28th February 2010
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Been looking at upgrading my rad too and this seems to be the best value one for Mk1 1.6 but if anyone has any experience of it be good to hear from them
http://www.ilmotorsport.de/shop/article_detail.php...

MX7

7,902 posts

196 months

Sunday 28th February 2010
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A friend is building a Cossie Escort, and has quite a nice radiator/intercooler in one unit. Not sure if you could find one for the MX5.

Howard-

Original Poster:

4,964 posts

224 months

Sunday 28th February 2010
quotequote all
Oldwolf said:
Been looking at upgrading my rad too and this seems to be the best value one for Mk1 1.6 but if anyone has any experience of it be good to hear from them
http://www.ilmotorsport.de/shop/article_detail.php...
Perfect! Doesn't look like MX5Parts sell it though, unlike everything else ILM frown

MX-5 Lazza

7,954 posts

241 months

Sunday 28th February 2010
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Howard- said:
Oldwolf said:
Been looking at upgrading my rad too and this seems to be the best value one for Mk1 1.6 but if anyone has any experience of it be good to hear from them
http://www.ilmotorsport.de/shop/article_detail.php...
Perfect! Doesn't look like MX5Parts sell it though, unlike everything else ILM frown
Give them a call - they should be able to get it for you anyway.

Howard-

Original Poster:

4,964 posts

224 months

Sunday 28th February 2010
quotequote all
Cool, will do when I'm ready smile

ILM have two thicknesses on their site, which do I want confused

dylan0451

1,040 posts

213 months

Sunday 28th February 2010
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aren't flyin miata doing one with an intergrated oil cooler?

i think i'd be more inclined to fit a coolant re route kit, new standard rad + oil cooler

Howard-

Original Poster:

4,964 posts

224 months

Monday 1st March 2010
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Can't find one that has an integrated oil cooler frown Was looking at them separately anyway... Are they worth doing? How hard is it to install one?


What's the "coolant reroute" all about?

snotrag

15,471 posts

233 months

Monday 1st March 2010
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Howard- said:
Can't find one that has an integrated oil cooler frown Was looking at them separately anyway... Are they worth doing? How hard is it to install one?


What's the "coolant reroute" all about?
The engine was designed to be used in FWD cars originally - IE Transverse.

The coolant flow would be in cold water in one end of the block, hot water out the other end.

Part of the change to longitudinal mounting means they had to change the coolant routing, because of lack of room at the back (againts the bulkhead, udner your coilpack. The flow goes in one end, down, back round and out again somewhere near the front. Typically the rear most cylinder tends to run a little warmer than the rest because of these - I think that any HGF's are nearly always at that end aswell.

FM (maybe others too) do a 'coolant re-route kit' which is some modifed take offs and hoses (IIRC) to change the flow of coolant and cool the rear end of the block more effectively.

Howard-

Original Poster:

4,964 posts

224 months

Monday 1st March 2010
quotequote all
Interesting. Is it an easy job?

MX-5 Lazza

7,954 posts

241 months

Monday 1st March 2010
quotequote all
dylan0451 said:
aren't flyin miata doing one with an intergrated oil cooler?

i think i'd be more inclined to fit a coolant re route kit, new standard rad + oil cooler
Howard- said:
Can't find one that has an integrated oil cooler frown Was looking at them separately anyway... Are they worth doing? How hard is it to install one?
FM Twincooler - it's what I have biggrin
http://www.flyinmiata.com/projects/radiator.php
Mine actually looks more like the 90-97 version i.e. there is no hole for IC pipes.

They are actually made by PWR but seem to be more expensive direct :S
http://www.pwr-performance.com/auto_main.htm

ETA: FM Coolant Reroute Kit

Edited by MX-5 Lazza on Monday 1st March 10:55

dylan0451

1,040 posts

213 months

Monday 1st March 2010
quotequote all
starts getting pricey there, depending on how much wedge you have to play with, i'd fit a coolant re route and change the stat first then see if things are still on the warm side

you might find a brand new standard rad is ok, although if you have the cash, those twin coolers do look very nice indeed, don't forget the price excludes any fittings/stat etc. though

Howard-

Original Poster:

4,964 posts

224 months

Monday 1st March 2010
quotequote all
It's not running hot at the moment, I just fancied the idea of some "preventative" maintenance/changing! Oil coolers and reroute kits and fancy radiators costing that much might be a bit OTT seeing as I'm "only" running a standard low boost forced induction setup. It all looks very nice though eek

snotrag

15,471 posts

233 months

Monday 1st March 2010
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If your current radiator is looking a bit knackered, then I'd go with a new, standard radiator, but make sure you give the whole system a really good flush through and fill it up with quality, correctly mixed coolant - I dont think its a particular weak spot on these cars.

A stand-along oil cooler could be added quite easily and cheaply I think, at a later date if so required. Have you got an oil temp guage in the car?

Howard-

Original Poster:

4,964 posts

224 months

Monday 1st March 2010
quotequote all
snotrag said:
If your current radiator is looking a bit knackered, then I'd go with a new, standard radiator, but make sure you give the whole system a really good flush through and fill it up with quality, correctly mixed coolant - I dont think its a particular weak spot on these cars.

A stand-along oil cooler could be added quite easily and cheaply I think, at a later date if so required. Have you got an oil temp guage in the car?
Standard (or mildly uprated) plus a good flush is the plan tbh smile

No I haven't got an oil temp gauge. Is this something worth doing? If so, how? wink


Sorry for all the questions!

snotrag

15,471 posts

233 months

Monday 1st March 2010
quotequote all
My point with the oil temp gauge is - whats the point in looking into extra oil cooling, if you dont know what the oil is doing anyway?

If you have a gauge you'll be able to monitor the oil temp over the spring to see whether you really do need additional cooling.

An oil temp gauge (along with the pressure gauge if you have a 'proper' one) is the best way to know when the car is fully warmed up too. I certainly miss having one and really should get round to it.

The gauge installs in the car, and there is a sensor/sender which needs to be in the oil flow. A common way to do this is to fit a sandwich plate - this goes between the oil filter and the block.

You could also use this as a place to mount your oil cooler if need be.

I've not looking into it but on these cars there may actually be a more suitable place to tap into the oil feed.

Howard-

Original Poster:

4,964 posts

224 months

Monday 1st March 2010
quotequote all
I've heard of people fitting oil gauges as a useful indication/warning, and yes I have a proper pressure gauge which is useful for warmup times etc smile

I might look into fitting a temp gauge to monitor the temps and see if a cooler is necessary

But like I said, it's only a fairly "standard" FI system, no crazy 250bhp setup so am just wondering how bad it's likely to get in the heat of the so called summers we get, plus maybe the odd track day that's all smile

J-Tuner

2,855 posts

265 months

Monday 1st March 2010
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I would agree on seeing where you are now with the temp gauge and new standard rad and and work from there smile