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Discussion Starter · #1 ·
Mazda GD MX-6/626 F2 Turbo Air-to-Air Intercooler
Flow - Direction A and B 178 cfm (equal 22nd overall)

Mass - 2.1kg (equal 15th overall)

Core Measurements - 32.8 x 16.5 x 6.4cm = 3464cm3 (10th overall)

Largely forgotten in the Australian performance scene is the 108kW Mazda-developed F2 turbo 2.2-litre as found in GD 626/MX-6 turbo and the late Ford TX5 Turbo. The F2 intercooler is solidly constructed in aluminium and offers mid-range core volume and thermal mass. Its airflow is very poor, however, with even the small Nissan intercoolers causing less restriction.

The only application this intercooler is suitable for is where engine output is under about 120kW.
Quoted from a recent Autospeed article.

While our intercooler have quite good size, and thermal abilities, it appears they are very weak from an airflow point of view.

FYI anyway...

Pete
 

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hmmm....

makes you wonder which is more restrictive in our cars...

- The turbo
or
- The IC

Maybe I should be looking at getting a new IC before I hi-flow the turbo, otherwise I'll be wasting my money....
 

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have been thinking of using larger in/outlets. Unless, of course the core passages are too tightly spaced.

Gavin
 

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Discussion Starter · #4 ·
Trip,

Definately the turbo!!!

You can still easily kick out 150kw atw+ with stock intercooler.
 

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PeterD said:
Trip,

Definately the turbo!!!

You can still easily kick out 150kw atw+ with stock intercooler.
But mummy! The man in the article said that it is suitable for applications less than 120kW... And we all know that the Internet doesn't lie!
 

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Well I cna tell you this due to it's restrictive end tank and core it's why it can cool 80degree hot air down to 5degress above ambeiant temps.

Oaky it's not great but they work.

The turbo is always first on these cars it's a turbo borrowed off the 1.6L B6 motor in the early GT-X and TX3's. yeah it's slightly bigger but same model RBH5 thing.

anytihng off a modern 2L is much better then it.
 

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if possbile, could i get a link to the article please?

cheers
 

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thanks mate.

hmm, interesting to say the least!

the article sort of brings down everything that i have heard about 1st gen coolers.. supposedly they did pretty well, and i think that alot of us were lead to believe it because we own these cars and are biased.

personally, i know my stock cooler does ok.. i have mild steel intercooler pipes.. the pipe from turbo to cooler is always hot to touch, where as the pipe from cooler to throttle body will be cool (if ive been boosting around the place, which is always)..

i dont know all that much about intercoolers, BUT, going from what ive seen in that article, would it be benificial to go out and get a series 6 rx7 cooler and replace my stock unit with it?.. even though our stock one seems to be atleast twice as large?

who here has a non-stock cooler, and what did you experience after installing it?
 

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Discussion Starter · #10 ·
I have a non stock cooler....and it has noticeably increased performance even on stock boost.

Car is stronger especially in the mid-range, and temps seem to be down. Haven't done temp testing yet, but will soon.

I don't think the stock coolers are that bad. They are good in terms of reducing the charge temperature, but they do suffer pressure loss across the core. Effectively this means a slight drop in power, but not something worth changing unless you significantly upgrade.

Pete
 

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Well guys and gals i will soon has an upgraded frount mount and intercooler pipes put on hopefully i should have it on by next week some time like moday hopefully.

I get my lisence back on wednesday so i will post pics of it and tell you what my bum dyno verdict is.

I read a review on our stock intercooler piping that basically said it was the weak point in the car??


So must not be that fantastic

Anyway peace out all

Robbo:p
 
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