They make a liquid to air inline. That might work better. Would there be any risk of hydraulicing with that much alcy?

 

the idea is to "eliminate" any back pressure associated with a IC, no matter how big they are.....

i guess i'll find out about the hydrolocking when i get something put together

 

I don't think it would be too much of a restriction given it's size. Turbo Trix was running it in this pic:
http://www.turbotrix.com/images/racecar6.jpg

I think it is more the volume of an IC that kills response then back pressure. The bigger you go the less pressure drop but, more volume to pressurize and that equals slower response.

I've also seen the bulb that DEI has that goes into the piping and gets CO2 circulated through it to cool the bulb and surrounding air by the decompressing gas. I'm not sure how well that works.

This thing:
http://designengineering.com/product...album=8&page=2

 

Abner, the pre-compressor injection concept will help out with cooling the intake charge when you eliminate the intercooler. If this works out, that turbo will definitely spool up pretty darn quick.

 

I think the liquid to air intercooler would be right for you, but if not and you wanted to eliminate the IC, then Why not face the compressor outlet upwards and have like a foot and a half long pipe going right to the throttle body instead of going all the way behind the bumper and stuff, unless that is what you were talking about doing anyways.

 

Joe, the compressor blade chopping up alky mist at 100Krpm scares me

Also, w/o the IC, if the compressor turbine ever shatters, the motor.......

 

The motor may go pop without the IC just cause of detonation due to too hot of an intake charge because of too much boost never mind the turbo exploding.

 

specific heats :
Air ~ 1 kJ/( kg * deg K)
Gasoline 2.02 kJ/( kg * deg K)
Water 4.18 kJ/( kg * deg K)
Ethanol 2.43 kJ/( kg * deg K)
Methanol 2.51 kJ/( kg * deg K)

latent heat of vaporization:
Gasoline 350 kJ/kg
Water 2256 kJ/kg
Ethanol 904 kJ/kg
Methanol 1109 kJ/kg

direct injection into the air stream in the form of a mist seems more effective than air/air - air/liquid IC.....idk

 

Thats because it is, Its a good idea, I know plenty of people with cars turboed aftermarket for straight drag who run meth only as a liquid intercooler. But meth is expensive, I would only do this on a track car, its just not practical for a DD. Your call though, subscribed.

 

The question is can the alcy evaporate and cool faster than it will be ingested into the engine with no IC ? I don't know if I'll be able to explain my train of thought here but, I'll try.

I'm with you on the whole no IC thing for turbo response. Where I start to wonder is you are currently using the Alcy to quell detonation with an IC. So now you remove the IC, increasing response, decreasing volume in the intake system, decreasing the amount of time the hot compressed air spends traveling from turbo to engine as well as removing the main heat sink from the system. Can the alcohol cool the intake quick enough to be effective? Will you have to inject so much alcohol it becomes a liability?

IDK. Sounds like an expensive lesson to learn. I guess you could start off with really low boost and try working your way up while monitoring knock. As stated above it would probably work really well for a dedicated track car but, if you plan on running it on the street...not so much.

 

Ill share a little of my experence with a setup like this. Trans Am ws6. gt47r midmounted, with nothing but alky. I know its a different car, but if it works for that car to be running mid 9's, i dont see how it wont on an evo. I say go for it, if the car isnt your daily.

 

i have run both pre & post turbo injection while using 100% methanol on other applications.

Both works well, post injection is safer on a street application.

Methanol can cool!

just remeber you need to richen that beast up dependant on how much meth / alk you run. For example, if you ran 100% meth, your target a/f should be ~5.5 +/- 0.3

enjoy

 

WOT:did you run intercoolerless too?

 

to run intercoolless, don't make a pipe that simply connects the two intercooler pipes. the best way to do it would be to get ride of all the intercooler pipes as well.

i would rotate the compressor housing around so the outlet is facing straight up. from there, new tubes to the throttle body. you'll cut the total length by 2/3's.

and FYI slowcar, i have a simulation that can give you an idea of how much ethanol, or methanol you'll need to inject to cool the intake to XX degrees given ambient temps. it takes into account compressor effficency, VE, displacement, amount of regular fuel you're using... and my simulation was tested against our E-85 race car with 4 primary injectors with a 5th injector. it was within 5% of estimating duty cycles correctly against the real world. send me a PM and i can make you some cool plots with a little more information.

 

exactly what i was going to say.

I would hit him up for this.


I always wanted to try something like this with my car, but i dont make the proper funds for testing.

Good luck man, keep us informed.