Subaru water/air intercooler on 4.2 GQTD

[busman]

Has anyone done this? I can get one very cheap and was thinking it could be a good option. It is a complete kit.

[frigga 40]

SPEAK TO LUCIFER ON OUTERLIMITS HE HAS DONE IT I THINK HE SOLD HIS NISSAN TO HUNTIN FROM OUTERS AS WELL

[busman]

Ok i'll send him a pm.

Thanks.

[BIG GQ]

So has Tom (Daisy) on this board.

[big ben]

Has anyone done this? I can get one very cheap and was thinking it could be a good option. It is a complete kit.

Dispite what you might read in ads, there are draw backs to water/air intercoolers.
did you know they need a seperate radiator and waterpump to cool the water running thru them along with more waterhoses, clamps, wiring, fuses, read- unreliable add ons
You better prey it dosent spring a leak internal and water inject your engine.

Now you know why OEM use air/ air only

[busman]

I realise that these intercoolers have more components. This kit is a factory Subaru kit off i think a liberty so it is OEM and it is complete with water pump and radiator. I just wanted to know if anyone had tried one and if it would be a suitable size.

[meiamaro]

I saw a STI air/air cooler on an 80 series(somewhere here)
would this be big enough for your needs.
Just curious on the air flow/volume needed for a 2lt turbo & 4.2lt turbo
engine.

Ian.

[Brunsy]

Dont get too caught up in air flow of STi vs TD42, the cooling water has no idea what size engine its on. The Kw of the engine it came from is a better guide, These coolers do a pretty good job on a 200kw engine so will do fine on a TD42.
I just picked up a supra air to air for 100bucks and its going to fit very nicely in the front of my GQ , passenger side next to headlight, these are bloody good little coolers for anything up to 170rwkw.

[bogged]

Now you know why OEM use air/ air only

plus the fact its 1/4 the price..

[bogged]

Has anyone done this? I can get one very cheap and was thinking it could be a good option. It is a complete kit.

So, did ya give it a go?? I've just scored a kit.

[busman]

No, i didn't sold it and i've nearly finished my bolt on Laminova!

[rallydave]

i have one on my td42 gq, with a standard gu oil cooled turbo, running 13 pounds boost. i had it modified to bigger water pipe size (25mm). it has been an expensive exersize. but works well,
-intercooler, $150
-radiator, $220
-water pump, $200
-a electrical kit from ARE in brisbane, $200. runs a boost switch which restricts the water pump to 40lts a min for normal use, and when it comes on full boost the pump then runs at 60lts a min for 30 seconds after it comes off full boost.
- approx $1200 for fitting and hoses ect
total price approx $2000.

it works great, but for the money (in hindsight) ???
the best thing about the water to air is the short inlet length from turbo to inlet manifold, my ute is quite responsive. very little turbo lag.
dave, 0432868238

[bogged]

i have one on my td42 gq, with a standard gu oil cooled turbo, running 13 pounds boost. i had it modified to bigger water pipe size (25mm). it has been an expensive exersize. but works well,
-intercooler, $150
-radiator, $220
-water pump, $200
-a electrical kit from ARE in brisbane, $200. runs a boost switch which restricts the water pump to 40lts a min for normal use, and when it comes on full boost the pump then runs at 60lts a min for 30 seconds after it comes off full boost.
- approx $1200 for fitting and hoses ect
total price approx $2000.

it works great, but for the money (in hindsight) ???
the best thing about the water to air is the short inlet length from turbo to inlet manifold, my ute is quite responsive. very little turbo lag.
dave, 0432868238

fotos of the setup?

[coxy321]

Does anyone or here have the equipment to do bench flow testing?? If someone's keen to do it for free/cheap, i'd take my unit down to see just how much air it can pass.

[PGS 4WD]

Dont get too caught up in air flow of STi vs TD42, the cooling water has no idea what size engine its on. The Kw of the engine it came from is a better guide, These coolers do a pretty good job on a 200kw engine so will do fine on a TD42.
I just picked up a supra air to air for 100bucks and its going to fit very nicely in the front of my GQ , passenger side next to headlight, these are bloody good little coolers for anything up to 170rwkw.

I wouldn't agree totally with this as a diesel processes a lot more air to make its power, form example I recently tuned an EL Falcon with a tickford head, a cam and exhaust N/A not turbo. It made 142 rwkW. To make that power out of a diesel would require at least 15 psi of boost. (they are both roughly 4.0 litre engines. The air/fuel ration for a diesel would be around 20:1 and the air fuel ratio for a petrol around 12.8:1.
This means the turbo is working much harded on the diesel and therefore producing higher outlet air temperatures that require more efficient coolers. I have seen small water to air coolers that have less than a 10 degree temperature drop under high boost levels.
The comparison for HP only works if comparing the same fuel.

Joel

[garth]

X 2

A good example is the PWR 400 Hp water/air cooler for a petrol is way too small for the diesel, after buying it I had to return it and ended up with a 10" 650Hp one!!!
Even with this I ended up doubling up the intercooler fan/radiators and adding a surge tank to maximise cooling.