clappton,
Only the uninitiated will remain ignorant. So I started this discussion fully intent on educating myself on stuff I’ve researched… but need more input. I'm sorry if you think this is a stupid post.

I haven't seen anywhere that states alcohol raises octane... but then again there are so many forms of alcohol there may be a reference to the alcohol you've mentioned and its octane value... however your statement is technically unsubstantiated.

The things discussed so far seem to indicate that you have to raise the boost to overcome the saturation… but it’s also been discussed with water in mind.

I don’t doubt that water and alcohol injection are very successful in many implementations, but my challenge is that if the price for the setup is the same so why not use nitrous? Far more drag racers use nitrous than any other intake injection system… So convince me otherwise! I’m open-minded.

What’s the cost of alcohol? Are we talking about rubbing alcohol, then kind you find at the drug store?

Nothing you’ve said supports a strong argument to using alcohol over nitrous. Keep trying.

 

While I was writing the last post Terry_S posted the octane rating of ethanol. Thank you.

How much does Ethanol cost?

 

Goods stuff. Does alcohol have a better Latent Heat Rating as well?

Since you said they have different aspects, How about both Nitrous and Alcohol injection?

 

I remember someone talking about buying a 55 gallon drum from RnR I think? There are several tuners and dozens of people running alky and water/alky injection kits. If I wasn't at work, i'd take the time to look up the threads, but alas, I need to be sneaky

I think it works out to be about 3 bucks a gallon for the ethanol (or was it Methanol) if I remember right which should be sufficient to use for one complete tank of gas. (i.e. alky needs to be filled up as regular as gas if used full time)

Terry S

 

I checked out the Buschur system and it looks like it taps into the FMIC spray reservoir. Is using windshield wiper fluid a bad idea with that setup?

 

you obviously wouldnt use washer fluid in your spray if you had the injection system.

however, basic whiper fluid is similar. methenol or isopropyl, water, and maybe soap

it also doesnt seem like youll ever be a fan of these injections systems.
but thats the joy of the game, doing what you think is best for your needs.

 

buddy do more research. Water injection kit is proven for years to be the best.

 

Someone was saying they were running the methanol/water mix washer fluid in their water injection kit and it worked fine as long as you didn't get the cheap 99% stuff. The only problem with it is the inconsistent mixture amounts. When you tune for a set alky/water mixture, then change the %'s, the results will vary. Best to use just straight alky or straight water. (I think most tuners suggest pure alky, but dont quote me on that)

 

http://derekdevises.com/MW.html

Here's a good link.

 

That's band-wagon talk. So water injection is proven to be that best at what?

Well, I've gotten some good info here and some people took offense to the challenge.

You can count on me doing more research. It's too bad I have to wade through the so many posts to get to the good ones... at least this isn't like the SRT-4 forums. HA!

Here's another link for you water injection fans, good stuff:
http://users.frii.com/maphill/wi.html

 

I dont have time to challenge you now . Just search and you will find your own answer. You will find many posts by me too

 

you want to research something.... research this:

# of motors blown as a direct result of no2

vs.

# of motors blown as a direct result of alch/wat inj



2nd

they don't use this in road racing or gtc cars... this is a cheap way to run more boost, and do it safely.... and more importantly, it's for drag racing...more over, street racing... at the track you can just run race gas and get the same results... but I'd rather pay for 93oct, and just use a little alc here and there... moreover, i know more then a handfull of low 11 sec dsms on pump that make $$$$ because of it.

there are lots of things that are better... everyone has their own reasons for using it... if you want nitrous, you go buy that...have fun

 

You are comparing 2 different things.

The reason to add nitrous is to add power.
The reason to add an alky/water injection is to reduce knock.

They do have a couple things in common:
1) Both systems cool the intake charge temperatures.
2) Both systems can be used to increase horsepower.

Beyond that, they are completely different.

Nitrous increases power by creating more oxygen when injected into the combustion chamber. It breaks down under pressure and temperature producing more available oxygen and at the same time, lowering temperatures. When you add more fuel to this environment you get more power.

Alky/water, when injected into the combustion chamber (or just prior), reduces heat as well as the engines tendency to knock. This actually reduces HP, but then allows you to tune for more boost, hence making more power.

A little bit of reading for those interested:

http://members.aol.com/agspeed/nos.htm
http://www.aquamist.co.uk

 

Yeah after reading this thread...I can't believe how the thread got past the 2nd or 3rd post. Everyone seemed to miss the point that noone injects nitrous oxide for the cooling effect, that is just a secondary effect.

Nitrous oxide is used for the OXIDIZER to allow more fuel to be burned. N2O injected with fuel adds alot more power from the oxygen/fuel burning.

Alcohol is used to increase effective octane and allow more boost and ignition timing. Alcohol injection doesn't add any power by itself, it only allows a more aggressive tune.

 

More good info regarding tuning AND the benefits of utilizing water injection to CONTROL KNOCK.

http://www.aquamist.co.uk/info/docum...aper/title.htm