Why no secondary intercooler?

 

The kit comes with an aquamist kit that will cool the presupercharged boost as well as post intercooled boost. we can also have it spray the factory intercooler. The factory intercooler is actually a very good design(for what and where it is)...We will datalog AITs with and without the aquamist setup, but the temp drop deltas will be drastic.

 

I'd be very interested in seeing your w/wo aquamist logs.

 

Did you consider an intermediate intercooler or are you guys just aquamist junkies :smile: ?

 

Dual intercooling would be doable but how much of an effect would it have? no intercooler(save for ice water) is 100% efficient. water injection(small atomizing jet) will drastically lower the air charge temps. once this misted charge hits the blower and gets recompressed it will go through a phase change and pull alot more of the heat out. this cooler pre IC charge will allow the factory IC to not heatsoak under load as readily. there will also be a jet post IC to take care of the rest of the heat and prevent detonation . I will have maps tuned for pump gas and race gas(leaner, more timing) that can be switched.

 

seems like the only possible phase change would be to condense the vapor (vapor to liquid). As I recall, it is the transiton from liquid to vapor (evaporating) that absorbs heat. Hence the need for the condenser cooling in your refrigerator.

 

John,
I believe what happens is you inject a mist (but not vapor) and that evaporates as it absorbs the heat from the temp difference and then the phase change soaks up some more heat.

--
Cheese

 

Top man TWINCHRGDMINI. Looking forward to some "on the road" videos. Sounds awesome

 

A little birdie told me that yhe instalation is happening today

 

 

How reliable will this system be as a daily driver? I'll shell out the cash if the system promises not to blow up on me.

 

hey cheese...did you ever get a D2? i might have one for you...

 

will Psi-Fi an Helix be teaming up to do any other MINI projects? or is this just a development type deal? love the SRT-4 intercooler on the website. the price for that HUGE intercooler is surprisingly low too ($599). where's the MCS intercooler?

 

What is????
-cowl induction cold air intake system
-Turbosmart eboost boost contoller/boost gauge and pod *working on gear or mph dependant boost settings(can have up to 3 stages of boost)

 

The problem is that any misting system is a finite resource. This may be fine for those street/strip people but for us track guys I don't like the idea of running out of my go faster juice. Same argument against NOS and C02 spraying of the Intercooler. A second Intercooler or larger primary would go a long way.

Cheers,

Paul

 

In essence an intercooler is finite source as well, once it heatsoaks it loses its efficiency. If you are a road racer just use a bigger reservoir, doesn't stop the world rally cars that utilize an aquamist system...


Larger intercoolers are available and will work with this kit, thats an upgrade the end user can do if they chose.


BTW the turbo kit is on the car and its much much faster(only about 70% tuned on low boost, pump gas and no aquamist yet) than the 19% ever was...May have to make a few revisions to my original plan of attack but things are progressing nicely

 

I did not, so let me know the details.

 

Um, sure you'll heat soak if you're not moving but if the IC became heat soaked during driving to the point of being worthless then no one would use an intercooler. The intercooler efficiency is fixed and once the engine is up to temp it will continue to reduce the intake temp x degrees for a given outside temp. There is no heat soak if you don't stop moving. Sure the hot intercooler isn't as effective as a cold one but it will never, assuming you keep moving, drop to being totally ineffective.

To prove this take a stock MINI with a stock intercooler run around the track x times (say 20 laps), then join the track with an MCS but with no intercooler. Which one do you think would be faster? By your account the one that was on track for 20 laps would start to heat soak to the point where the intercooler was useless. That's just plain wrong. The "cold" MCS would be faster initially, say for 1 lap, but then it would fall behind drastically.

When the aquamist runs out there are no water trucks on a track. Aquamist becomes "0% efficient" with no water. The intercooler will always give you something assuming you are moving. The reason WRC use them is simple, they no how long they will be on a leg of a rally and can predict how much water they will need.

Don't know about anyone else but the idea of driving around with 20 gallons (okay so that's an exageration) of water in the boot doesn't apeal to me. Heck if you could just "put in a bigger tank" then everyone would run NOS.

Paul

 

Paul, I'm with you 100%. A heat-soaked IC is better than no IC. Whether it be pullies, intakes or other mods, they all have their point of diminishing returns, but so long as they are returning, they are still contributing. For that reason, I too am not keen on finite supplies of power that need constant replenishing. I just wish we could solve this gasoline thing though

 

we are still retaining the factory IC, so I dont fully understand your argument. Even in bone stock form the factory IC needs help, the aquamist is lessening the burden on the stock IC(in effect the factory ic will take longer to heatsoak). I have been tuning the car so far without the aquamist and all is well... The aquamist utilizes small jets so the water quantity used is actually very little. typically in the past I have been able to get away with 1 coolant tank to 1-1.5 tankfuls of gas(in my audi applications). No one is saying you cant add in an auxilliary intercooler post turbo or even an upgrade top mount intercooler(although I havent seen much convincing data that proves the bigger top mounts work better than stock). maybe the air to waters/front mount or laminova coolers will provide better cooling. This is an option any end user can opt for on their own. as it sits right now we are using a very efficient turbo and our intake source is providing nice cool air so post turbo charge temps are in check.

 

I've got a question for you guys. A couple of my friends run the disco potato on their VWs and see 14+ psi regularly without a boost controller and making over 300 hp. So what boost are you guys planning on running for the street setting? Also if you are going to be boosting a lot, why not take the charger off because wouldn't it just become a restriction at that much power?

I really hope this kit is afforable, me being a poor college student can barely afford the water for the aquamist , hopefully I can use tap not bottled.

 

Ok .. so I am out of the loop as far as NAM is concerned and failed to see this new thread until a buddy pointed me here.. I was present for the last portion of the install and initial fire up. What a beast this thing will be! Here are the pictures with permission from Psi-Fi / Helix.

Thanks guys for letting me come hang out and learn.
See you Thursday at Atco? I will be there when gates open.

 

oooooooooo. I wonder how hot that location will be for the air intake???

 

Who needs an air intake?

 

its actually very cool, the filter remains very cool to the touch even after spirited driving, as it pulls from the cowl and underside of the car. even so we are going to fabricate a heat shield to totally isolate the filter and encapsulate it to draw from the exposed cowl area so it has no chance of pulling in any heated air...