ASI 52mm Radiator Review

Engines, Transmissions & Final Drive questions and answers

Moderators: timk, Stu, zombie, Andrew, The American, Lokiel, -alex, miata, StanTheMan, greenMachine, ManiacLachy, Daffy

User avatar
CQYD
Fast Driver
Posts: 125
Joined: Tue Feb 03, 2009 6:02 pm
Vehicle: NA8

ASI 52mm Radiator Review

Postby CQYD » Mon Jul 23, 2012 2:21 am

So my radiator blew, seems like it blew in the same sport all other NA mx5 raditors blow. Was kinda expecting it as it you could tell in the pic it was quite old and brown.
Image
Was actually surprised at how thin the stock radiator core was.
ImageImage

So after seeing some good reviews of ASI raditors and the price really sealed the deal. Decided to go with the 52mm with fans and shroud, as I didn't want the dicking around fabricating and buying thin fans, when the package was so reasonable. It didn't look like the stock fans would fit, with a 52mm rad. After installing it, the stock fans may fit, but it would have been a bitch to get in with next to no clearance.
Probably overkill and there is some added weight, but I should not have to worry about the radiator again.

The ASI radiator

The fans look kinda cheap plasticky, but as long as they work I'm not fussed. They had 12v 80w stickers on them so I assume they are volts and watts??
Image

I'm no expert by the welds looked great and the construction seemed good to me. Overall happy with the quality of the product.
ImageImageImage

Some comparison pics with the stock.
ImageImage

Instalation

Overall it was not complicated, but not completely bolt on. Close, I would give it 9/10. Some small issues I had with the instalation below.
Wiring, you need to either change the plugs on the radiator or the car. I decided to change the ones on the raditor and reuse the old plugs. Soldered and shrink wrapped.
Image
You need to remove the hanging bolt from the stock radiator and put it on the ASI. Had to drill out the holes as they were too small for the bolt. Also there was not enought clearance with the hanger for this bolt to just slide the radiator in. Some slight massaging of this hanger was required. I needed two pairs of hands, one to hold the raditor and the other to bend the hanger, then bend it back once the radiator slid into place.
Image
This bracket for holding the aircon lines would not bolt back on. If you don't have aircon then dont worry about it, but in Darwin its essential. This bracket stops the aircon line flapping aound and possibly hitting things when driving.
Image
Got a small 90 degree bent bracket to secure the air-con line back.
Image

Also as a result of the radiator being increased to 52 mm, once you secure all the other air-con line brackets to the mounts on the raditor. The line will be pushed up against one the the engine belt and pulley. I found this out when I restarted car the it started squeeling. Luckily the metal line didn't wear through. You need to somehow massage the metal lines so they won't come into contact witht the belt and pulley. I managed to get about in inch clearance, so it would have to be a big knock in the front to make this line come into contact again.

Thats it installed filled and up and running again.
Image

The quality of construction was pretty good, all the mounting holes lines up and hoses. I did have some issues with the installation, however it not something the backyard mechanic should get too worried about. Overall very happy with ASI - 8.5/10.
Will update this thread again if I have any issues with it.

User avatar
jerrah
Racing Driver
Posts: 724
Joined: Mon Mar 10, 2008 2:54 am
Vehicle: NA6
Location: Brisbane

Re: ASI 52mm Radiator Review

Postby jerrah » Wed Jul 25, 2012 1:49 pm

Make sure you run it up to temp - mine had a leak roughly in the middle at the front.

That said I contacted them and another was shipped extremely promptly!
1991 MX5

User avatar
aviper4u
Fast Driver
Posts: 258
Joined: Sat Jan 23, 2010 12:36 pm
Vehicle: NB8B
Location: Sydney
Contact:

Re: ASI 52mm Radiator Review

Postby aviper4u » Sun Jul 29, 2012 8:15 pm

CQYD wrote:So my radiator blew, seems like it blew in the same sport all other NA mx5 raditors blow. Was kinda expecting it as it you could tell in the pic it was quite old and brown.


New radiator looks good and i have heard only good things about ASI, though having an original browning radiator myself was interested in knowing the age and kms on your MX5?

Cheers
Can you remember your first drive?

deviant
Racing Driver
Posts: 1717
Joined: Thu Apr 15, 2010 7:23 pm
Vehicle: NB8B
Location: Rockingham - Western Australia

Re: ASI 52mm Radiator Review

Postby deviant » Sun Jul 29, 2012 8:41 pm

My 2000 NB8B with 80,000KMS had a brown radiator when I got it so the first thing I did to the car was to replace it (as I did with my first MX5...dont trust the radiators at all) and the flipping thing crumbled and fell to bits in my hands!

I think that as soon as they go from being black and start to get a bit of crazing you are on borrowed time.

User avatar
CQYD
Fast Driver
Posts: 125
Joined: Tue Feb 03, 2009 6:02 pm
Vehicle: NA8

Re: ASI 52mm Radiator Review

Postby CQYD » Mon Jul 30, 2012 10:52 am

My car is a 97 NA ith 138,000km.

I also notice that the car takes a bit longer to get up to temperature. Probably about 1-2 mins extra to hit the middle of the stock temp guage. Not too much of an issue in the tropics but maybe in colder climates.

Did 100km of spirited driving, no leaks, temp guage hasn't moved, everything is good.

User avatar
aviper4u
Fast Driver
Posts: 258
Joined: Sat Jan 23, 2010 12:36 pm
Vehicle: NB8B
Location: Sydney
Contact:

Re: ASI 52mm Radiator Review

Postby aviper4u » Mon Jul 30, 2012 12:20 pm

good to hear, i had a look on ebay and all the mx5 radiators seem to be 52mm for post 98 models and 42mm for pre 98 models. i'm pretty sure the standard nb radiator is not 52mm? i would rather fit the 42mm so it warms up quicker and therefore cools quicker, anyone know which radiator is direct bolt on for NB8B ie; no need to buy different fans and shroud
Can you remember your first drive?

deviant
Racing Driver
Posts: 1717
Joined: Thu Apr 15, 2010 7:23 pm
Vehicle: NB8B
Location: Rockingham - Western Australia

Re: ASI 52mm Radiator Review

Postby deviant » Mon Jul 30, 2012 3:43 pm

I put the 42mm one in my NB8B using all the stock hardware. Note that even the rubber 'bumpers' on the stock radiator can be used. Took all of 20 minutes to do.

To be honest a 52mm radiator is a bit over-spec for a car that is not running flat chat all the time.


Return to “MX5 Engines, Transmission & Final Drive”

Who is online

Users browsing this forum: No registered users and 28 guests