CO2 intercooler spray

[s2_southwest]

Does anyone know of an S2 or any other turbo car running with CO2 intercooler spray?

Its another option to water spray kits you can get for intercoolers.

Or is it better just going for water injection?

Here is a kit, a little pricey but you could make it yourself with an extinguisher bottle and solenoid valve etc

http://www.nimbusmotorsport.com/ProdShop.asp?category=287

[A80Avant]

when i was thinking what to fit,between the CO2 intercooler spray and water injection,i thought that water injection would just get the job done more properly.so i went for that...

also im not so keen in spraying anything very cold in a very hot aluminium intercooler....

[Rusty]

All work the same, water has a high specific heat capacity but is not as cold as compressed CO2. Water spray can be combined with water injection from the same tank but on a standard car I doubt there's many gains to be had. I've still toyed with the idea of WI though

[s2driveruk]

definately got to be some performance increase to be had managing down thr charge temps with water injection or CO2 especially on a k24 which is mapped as its at the top end of its efficiency limit and IAT will be pretty high.

[Jonas_R]

I got the autospeed intelligent water injection kit and it is a nice bit of kit.

[Rusty]

Snow Performance over in the US do soem nice WI kits and for about $350-$500 so nowhere near as expensive as Aquamist. I was looking into Aquamist and the reason it's sooooooooooo expensive is beacuase of the pump they use, the pump on its own costs nearly as much as the basic kit!

[A80Avant]

yes,that is why i turned to snowperformance myself.bought the stage II kit for about 450euros shipping included

[Error404]

not a massive amount of point in water injection IMHO unless you're really det prone or are going to add methanol

[s2_southwest]

Looking at the Snow performance their kit is a water & methanol additive

[A80Avant]

WI just enables you to have concisten power all around the year,disregarding hot conditions.Other than that it is mostly for those needing more aggressive mapping where methanol is a certainty

[s2_southwest]

It will also help mildly tuned engines aswell by reducing the temp of the charge air and increases the octane level and hence more power so its not just for monster engines, it will without doubt benefit any engine with a proper map to go with it

[Error404]

agre4e with you, but at nigh on a grand once fitted and mapped its not exactly cheap

[s2_southwest]

you think that much? its about £500 for an mrc chip and setup yeh? about £250 for the W/I and id fit it myself so i reckon all in for £750 lol

[quattronutter]

you will keep consistent power with w/i,i run 50/50 water/meth on my s4,intake temps remain super low and timing stays well advanced even in hot conditions

[Rusty]

No point mapping for WI on a standard road car IMO. I'd just stick it on there and make sure that it switches on when an ambient temperature switch reaches a given value (15degC maybe) and also have a manual override for track days and sprints. Think what the car feels like on a cold day in winter compared to a scorcher in summer, the difference won't be that great on H2O alone but with a 50/50 it makes sense. More than that and the cooling effect in the cylinder is negated. Also, WI is not a substitue for an IC, FWIR although I've never quite understood exactly why if I'm honest. Both cool the charge but I think the difference is that the IC makes the air denser although I can't see how the WI doesn't also do this to some extent although now we're getting into sealed volumes and gas flow rates etc.

The Snow Performance kit looks good, I quite fancy one but then I want lots and have more basic jobs to do, don't we all