Injecting alchy Pre-intercooler

[bruce]

All you need to still get around is those little droplets hitting the turbine which is spinning at 100,000 RPM plus or minus.

Water isn't the softest stuff in the world.

The only folks that I know that are seriosly and totally into WI are the Tractor pullers, and all the ones I've seen have had the water downstream of the turbo.

MAYBE, adding a little pre turbo would be an answer, but not all, IMO.

If you want really good atomization go for 250 PSI. At those preassures the water is Cloud like.

When looking at the various things you can add, you need to look at how they effect the actual combustion reactions. Latent heat, etc., are but part of what goes on.

 

[joereitman]

Thanks Bruce- I have heard of premature blade wear/erosion from the sandblast effect of too large droplets. If I go with partial pre turbo it will be small quantities, high pressure, small jet orifice.

Any thought on whether the chemical anidizing is sufficient without follow up dye to limit ethanol corrosion (if I go that route), or does the dye somehow add protection or "lock in" the anodization? That may be a naive question, but I just don't know- I will also search on that.

Thanks again for the help.

Joe

 

[joereitman]

anodizing

http://www.caswellplating.com/frames.php?bottom=/aluminum.htm
"What is Anodize?
During the process, a thin film of clear colored oxide is formed over the aluminum. This is actually grown out of the metal, and is a part of the original piece, unlike a plated surface which is likely to peel from the substrate. This film is ALUMINUM OXIDE, a very hard protective layer. Because this layer is so hard and corrosion resistant, it makes it the ideal and often preferred choice for the restorer of vehicles with aluminum trim etc."

http://www.chevyrumble.com/chevyrumble/News.asp?ID=23
"The Blower Shop’s (TBS) new Roots-type supercharger was engineered from the inside out to give more performance on less boost pressure. The case and bearing plates are CNC machined from 6061-T6 aluminum bar, for no porosity, with internal hard-anodizing for maximum strength. "

Joe

 

[darkfa8]

heat transfer/soak

compared to paint (radiator type or not), how would anodizing the intercooler effect its ability to radiate heat and how would heat soak from the engine bay effect it?

Does the anodization act as a insulator coating?

Are you..anyone, considering having the external and internal areas of the intercooler anodized? Becareful, the internals of the intercooler have silicone in them to seal the rows of the core, you damage them and you'll have a leaking IC.

Also wondered if polishing the piston tops would be of any potential benefit.. likened to polishing the cylinder head combustion are...chamfer any sharp edges on the top of the piston and polish the top ...

where can you find a some-what compact 250psi 12vdc pump?

Bruce, what kind of temp drop have you recorded from turbo outlet vs. plenum as result of your 7th injector cooling tactics? .. would it be improved at all by fueling the 7th injector with alky mix, propane injection?

Your MAT/Boost/Timing setup, were you using the stock GM ECM for those experiements or using DFI? How did that testing go?

I'm glad to see threads like these, really pushing the limited of the components, materials, technology and theory out there to maximize the performance gain and reliability. Excellent material

 

[joereitman]

Re: heat transfer/soak

Originally posted by darkfa8
compared to paint (radiator type or not), how would anodizing the intercooler effect its ability to radiate heat and how would heat soak from the engine bay effect it?

Does the anodization act as a insulator coating?

Are you..anyone, considering having the external and internal areas of the intercooler anodized? Becareful, the internals of the intercooler have silicone in them to seal the rows of the core, you damage them and you'll have a leaking IC.

Also wondered if polishing the piston tops would be of any potential benefit.. likened to polishing the cylinder head combustion are...chamfer any sharp edges on the top of the piston and polish the top ...

Anodizing vis a vis heat transfer- good question- will search tomorrow. BTW, no significant engine compartment heat soak here- Mr Dremel's attack on the sheetmetal has guaranteed that. All heat soak is courtesy of a Big 16G at 100,000+ rpm.

I think the anodizng does act as a tyope of barrier based on what I read in the links above.

The internals would have to be anodized to prevent meth/eth corrosion. I noted melted silicone from the welding of the larger in/outlet to the IC so I see what you are saying there- I will research that too.

Piston cleaning apparently does happen with WI/Alky and gradually reduces/eliminates carbon deposits. Since the carbon build up causes hot spots and increases detonation, I think polishing the piston crowns would help as long as WI/Alky is run to keep them clean.

Thanks for the input.

Joe

 

[darkfa8]

gets more interesting

reading Hot Rod mag, found this:

http://www.designengineering.com/cryo2_related_items.html

Freeze the intercooler? Super-cool the fuel? Super-cool the intake charge? ... then propane/alky/xylene lol ... guess we'll find out just how much power a stock buick 6 can take before popping the heads off like bottle rockets from the cylinder pressure

So, how many tanks, bottles, injectors, sprayers and stuff are we gonna have in our cars before it looks like some sort of Doc Brown science experiment gone mad..oh..hmm, i guess that spot is taken by Bruce

 

[bruce]

Looks like 9 injectors, for fuel,
then the propane, and water.

Least for the obvious stuff LOL

 

[joereitman]

Re: gets more interesting

Originally posted by darkfa8
reading Hot Rod mag, found this:

http://www.designengineering.com/cryo2_related_items.html

Interesting reading, but found nothing on the web or other boards about it, probably because it is brand new. Most of what is out there (here and on other boards) seems to be discussion (but little actual data) about external C02 Intercooler Sprayers, but nothing about an internal "freeze bulb" in the intake stream. I just can't imagine much heat transfer taking place during the brief contact between the "bulb" and the air. I think I will keep researching pre IC WI or eth injection with anodizing...

Joe