waterinjection.info  

Go Back   waterinjection.info > Injection Theory (what it is and what it does) > Injection Mixtures

Reply
 
Thread Tools Display Modes
  #11  
Old 26-11-2003, 06:25 PM
JScoob JScoob is offline
Member
 
Join Date: Nov 2003
Posts: 31
Default

I'd probably use methanol if I could get it cheaper locally somewhere - I just don't know where. I don't really want to pay $45 for a 5 gallon via mail order.

As long as isopropyl burns better than water :wink: Plus it seems its much safer to handle than methanol.
Reply With Quote
  #12  
Old 07-02-2004, 05:51 AM
hotrod hotrod is offline
Senior Member
 
Join Date: Oct 2003
Posts: 307
Default alcohol sources

You should be able to buy either methanol or fuel grade ethanol at local race fuel suppliers. Also many RC cars and model aircraft use methanol fuels, and you should be able to source fuel alcohol from them.

Where I live both Methanol and Ethanol fuel alcohols are available in bulk or by the gallon at about $2.00 /gal.

Larry
Reply With Quote
  #13  
Old 08-02-2004, 05:58 AM
TurboGTi TurboGTi is offline
Member
 
Join Date: Nov 2003
Location: Jamaica
Posts: 43
Default

Ok this may sound strange or maybe someone has asked this already but.....is it possible to use White RUM as a mixture when injecting water with the aquamist system? ops:

please don't laugh either yes or no ..! with an explaination! :lol:
__________________
Keep it real
93 Suzuki Swift Gti Turbo @15psi System 1s
Microtech LT-8 ECU
Hugh Gordon
Reply With Quote
  #14  
Old 08-02-2004, 01:35 PM
hotrod hotrod is offline
Senior Member
 
Join Date: Oct 2003
Posts: 307
Default not a good idea

Not a good idea. White rum or any of the pure spirits are ethanol alcohol at 180 proof, that means they are 90% alcohol and 10% water.

If you have an aquamist, ethanol is not acceptable. If you have an ethanol safe system you built, it would work, but unless you work for a bootlegger it would not be cost effective. You can get pure fuel grade alcohols for much less money. I have no idea what trace contaminates are included in spirits like Vodka, or white rum, but I would only consider it as an "emergency" measure.

No officer, I'm not drinking, I put this in the engine ---

Yeah sure buddy, turn around and put your hands behind your back !
:shock:


Larry
Reply With Quote
  #15  
Old 08-02-2004, 02:02 PM
TurboGTi TurboGTi is offline
Member
 
Join Date: Nov 2003
Location: Jamaica
Posts: 43
Default

Hotrod.. thanks for your comments and your humour
i always wondered why i don't see people talking about using white rum or such....but tey do tlak about it, ijust didn't know of the ethonol base!

well i'll just stick to my water and rubbing alcohol mix!
__________________
Keep it real
93 Suzuki Swift Gti Turbo @15psi System 1s
Microtech LT-8 ECU
Hugh Gordon
Reply With Quote
  #16  
Old 02-03-2004, 03:36 PM
blown408 blown408 is offline
Junior Member
 
Join Date: Mar 2004
Location: michigan
Posts: 5
Default what to add

I am puting the 2d system on my car but I am a little confused about what I can add to the water and at what percent foe both knock suppretion and to pull some fuel out?Can someone please help me!
Reply With Quote
  #17  
Old 09-03-2004, 01:44 AM
JScoob JScoob is offline
Member
 
Join Date: Nov 2003
Posts: 31
Default Re: alcohol sources

Quote:
Originally Posted by hotrod
You should be able to buy either methanol or fuel grade ethanol at local race fuel suppliers. Also many RC cars and model aircraft use methanol fuels, and you should be able to source fuel alcohol from them.

Where I live both Methanol and Ethanol fuel alcohols are available in bulk or by the gallon at about $2.00 /gal.

Larry
What about the nitromethane additives that are found in some RC fuels? Is nitromethane ok to inject?
Reply With Quote
  #18  
Old 09-03-2004, 02:13 AM
MidEngine4Life MidEngine4Life is offline
Junior Member
 
Join Date: Feb 2004
Location: Hawaii
Posts: 7
Default

Does Ispropyl Alcohol (Rubbing Alch) also effectively act as a 'fuel' to richen up your AFRs like methanol does?

Methanol's downright impossible to find here in Hawaii. Even every windshield washer fluid (not the most ideal method) sold here is some sort of 'summer formula' that contains no methanol. :roll: ......
Reply With Quote
  #19  
Old 09-03-2004, 05:32 AM
hotrod hotrod is offline
Senior Member
 
Join Date: Oct 2003
Posts: 307
Default Yes

Yes Isopropyl acohol will work fine as a fuel. However note that it has significantly less ability to absorb heat during vaporization, and the proper fuel air, water injection amounts will be different with isopropyl acohol than on methanol or ethanol. In WWII Pratt and Whittney engine tests they discovered that the calibration for the ADI system would not work properly with isopropyl but was acceptable with both methanol and ethanol. This was traced to the lower limit of flamability limits of the respective alcohols. At the typical 50/50 mix used during the war, the isopropyl alcohol was acting more like a fuel (engine running rich) than it was a fuel air coolant.

UPDATED 5/13/04 old numbers had errors

The major differences in the alcohols has to do with their contained oxygen and the latent heats of evaporation.

Methanol -- Oxygen content 49.9% by wt, latent heat of vaporization 1099.45 KJ/Kg . K = 262.6 BTU/lb . F
Ethanol ----- Oxygen content 34.7% by wt, latent heat of vaporization 854.62 KJ/kg . K = 204.1 BTU/lb . F

Isopropyl --C3H8O--- Oxygen content 26.66% by wt, latent heat of vaporization 666.7 KJ/kg . K = 159.24 BTU/lb . F


Larry
Reply With Quote
  #20  
Old 09-03-2004, 11:56 PM
MidEngine4Life MidEngine4Life is offline
Junior Member
 
Join Date: Feb 2004
Location: Hawaii
Posts: 7
Default

Great info, thanks Larry!
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 03:24 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.