Water Injection

[gillard28]

Get the aquamist kit. Forget coolingmist there kits are rubbish. Pay the extra for the best

[rx7veilside]

wouldnt say rubbish as aquamist pumps have quite a high failure rate unless u go for the dogs danglies 700.00 quid system and basic systems are fine for just cooling intake if u are tuning with water then i wld go for the top end aquamist kit that a few others have but the basic aquamist is overpriced

[gillard28]

The differance is in the quality of the kits. The AQ kits have lots of development and have been propperly designed. They also atmoise correctly.
 
The coolingmist kits work off a cut out switch. basically the pressure spikes untill it hits the limit. so a 150 psi kit will not deliver 150psi at the nozzle. The flow is also erratic. The aquamist HFS-5 is about £500 and will mimic inj duty so the flow will always be reglated and a perfect match. Unlike the boost based systems with micky mouse pressure switches or a re boxed lighting dimmer (triac) to alter flow
 
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[gillard28]

The differance is in the quality of the kits. The AQ kits have lots of development and have been propperly designed. They also atmoise correctly.
 
The coolingmist kits work off a cut out switch. basically the pressure spikes untill it hits the limit. so a 150 psi kit will not deliver 150psi at the nozzle. The flow is also erratic. The aquamist HFS-5 is about £500 and will mimic inj duty so the flow will always be reglated and a perfect match. Unlike the boost based systems with micky mouse pressure switches or a re boxed lighting dimmer (triac) to alter flow
 
S

[BlitzBoy]

Cooling mist is fine for just cooling the intake temps and as safety feature, but would not tune with it personally eg take fuel out with it.

Aquamist now do a HFS-1 kit which is much cheaper then the HFS-5 kit but still uses the uprated pump and mimics injector duty but you lose the bell and whistles eg High Speed Valve

[rx7veilside]

never met blitzboy but have heard he is the dogs danglies when it comes to water injection..as i said if tuning use the aquamist but if just for cooling intake ie in warm weather and off the line after sitting at lights the cooling mist will do the trick..the aquamist is for die hard power guys who tune using water/meth injection but be warned tune for water and anything fails and split second kaboom..u pays ur money and takes ur chances.water does fall into 2 categories tuning and cooling

[BlitzBoy]

The Aquamist system does have failsafes if tuning for WI eg Low water Level , Blocked water supply etc etc, when it detects one of these states you can have it where it will switch the boost controller off and run just off the wastegate eg low boost.

[BlitzBoy]

here is the diagram for the cheaper HFS1 kit which is still pretty advanced but uses the cheaper solenoid instead of the Highspeed valve and there is no accumalator although can be triggered by injector duty it does not scale to fuel injector duty

[rx7veilside]

def difference in quality in the 2 kits all depends on what u are looking to achieve and of course how deep ur pockets are..mind u with a rx7 u have to have pockets down to ur ankles..

[TracNGaz]

def difference in quality in the 2 kits all depends on what u are looking to achieve and of course how deep ur pockets are..mind u with a rx7 u have to have pockets down to ur ankles..

**Has visions of the great escape**

[Adie Moore]

Ok, I\'v been in touch with cooling mist and they sound like they\'r able to offer a discount to us. They will need to know what kits people want and how many before they say how much disc we can have. Note shipping is $60.
This list is for my reference only, so as i can relay to David at cooling mist exact figures.
I will arrange an ordering system with them so as you place your own order and get delivery to your own address ( this is for my financial safety ).
Please only add to the list if you are in a position to buy NOW. Otherwise it may screw up your fellow members chances at getting the discount. Cheers

Adie Moore    - Cool 150, 216 to 360 hp

[StormBleeder]

I\'m aiming for 400rwhp and only want the WI system to help lower the intake temps, will the "Cool 150, 361 to 500 hp" be up to the job?  
If so count me in.

[Adie Moore]

Dont know mate, i\'m only 300rwhp. i think the only differance is the injector size... more power, more water. i wouldn\'t like to give advice as i dont know that much myself but i guess if you have everything in place to run 400 safely and this is something extra then i cant see why not.
adie

[StormBleeder]

Yep that\'s pretty much what I was thinking as well.   Count me in anyway.

Adie Moore - Cool 150, 216 to 360 hp
StormBleeder - Cool 150, 361 to 500 hp

[gillard28]

The amount of water you will need will vary greatly from 300 to 500 hp
 
The atomisation for the given jet at X pressure is going to be a massive factor and will ultimatly determine what happens in the combustion chamber. If you dont tune for it the water will loose you power as well as bog the engine down more due to the the fact you are altering the burn cycle (BMEP) and perfect combustion point or PPP. The use of water will slow the combustion and you tuned ecu will ignite the fuel to early to make use of the extra enery. I would say the differance from a tuned only on petrol FD and one not tuned on water or 50:50 would be about 0.5 seconds to 1 seconds on the drag strip. This will ultimatly be decided by how much you decide to inject and where but you should be aware that the charge cooling effect in respect to IAT is only a side effect and is not the primary function of water injection.
 
I am not a fan of the coolingmist stuff and i would be very very careful. (you have been warned)
 
 
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