Water+Methanol injection on a turbo motor..

Big P · Post by **Big P** » Fri Feb 04, 2005 6:45 pm

Anyone here running one? I think that it would be beneficial to have it if you want to run over say 15 psi. The water/methanol mixture can be held in a container(much like the windshield washer reservoir). You could have the water/methanol pump wired on the MAP sensor and a boost window switch that runs off of the wategate so that once the MAP sees 15 psi, the pump turns on. Then, once the wastegate starts to open(thus bypassing the turbo) it shuts down.

Just in case anyone is not familiar with what this does basically the turbo creates immense heat due to the radiant heat from the exhaust gas plus compression of the intake air charge. All this heat can cause detonation in the combustion chamber. The water/methanol injection absorbs some of this heat which reduces combustion chamber pressure as well as heat. One of the main benefits is being able to run more boost with less detonation. I'm sure that most guys running a turbo have some type of intercooler, and they work well for what they are designed for but adding this sysem can also add a margin of safety. Any thoughts or opinions???

daewooluvr · Post by **daewooluvr** » Fri Feb 04, 2005 9:13 pm

Or better yet, run a small shot of NO2 to cool the incoming air even more.

Big P · Post by **Big P** » Fri Feb 04, 2005 9:20 pm

Yes, that would also work to an extent, but you would have to find a way to add even more extra fuel to go with it. Adding more fuel is a tough enough task sometimes when running a turbo by iteself but then to add more fuel when spraying N20? You would have to have a seperate fuel adjustmnt seperate from the turbo fuel tables, and then double check to make sure that the total fuel intake will be correct. And if you err, hope that you err on the rich side otherwise engine damage will quickly follow. I would just rather up the boost, personally.

kinkyllama · Post by **kinkyllama** » Fri Feb 04, 2005 11:13 pm

Alot of people just spray the nitrous on the intercooler. Ok well that was pointless.. you just basicly said that, ehh.. whatever.

lol

Post by **Efratech** » Sat Feb 05, 2005 1:01 am

Big_P:

I know a guy that has an alcohol injection in his car... a Turbo 2.0 Civic

Is not fully functional yet 'cos he's waiting to Map the car's ecu (Automotive) and run over 25 PSI...

I've also known some people that run the NOS system with only the fuel selenoid to add fuel and get a more rich (and cool down the temps) on high boost situations.

Efrain.

Post by **PrecisionBoost** » Sat Feb 05, 2005 3:32 am

spraying water reduces power.

The vapor takes up room where fuel and air could be.

If the system efficency is set up correctly there is no need for water injection.

If you have detonation it means you haven't done your homework on intercooler sizing, turbo compressor map efficency plots, spark plug heat levels and ignition timing.

I agree with water spraying on the intercooler.... but not in the engine.

Adding Tolulene is a better idea.... it's a evil substance that can be purchased relatively cheaply at any paint store (and it's very poisonous)

Tolulene will boost the octane and dramaticly decrease the risk of detonation.

If you search for tolulene and performance engine you will probably find a few articles on it...... including the mixture ratio to obtain particular octane levels.

I've also heard of Propane injection which can be combined with NO2....but this is more common on high horsepower diesels.

Alchohol is cool...... it does the same job as Tolulene but I'm not very familiar with required air/fuel mixtures (since it's a self oxidizing fuel)

I suppose it depends on what kind of alchohol you use.

kinkyllama · Post by **kinkyllama** » Sat Feb 05, 2005 6:41 am

Erfinder wrote: I've also heard of Propane injection which can be combined with NO2....but this is more common on high horsepower diesels.

I heard you can run propane on diesels 24/7, one tank of propane lasts severe tanks of gas and gives you a TON of extra hp for cheap. I dont remember my source but i remember it looked legit.. i dont know much about this stuff though

DomWoo · Post by **DomWoo** » Sat Feb 05, 2005 12:52 pm

you can run propane on turbo gas engines too, actaully works out really good if you tune it right

kinkyllama · Post by **kinkyllama** » Sat Feb 05, 2005 3:58 pm

Yeah thats what i heard.. cuz i wanted to do it on my dads truck. Its already has 570tq and 325hp... 1/4mile in only 17.7 seconds though

woo · Post by **woo** » Sun Feb 06, 2005 3:54 am

i saw an interesting combo on a supercharged V8. The guy had an injector plate under his carbs on the supercharger, so whenever it overheated, he switched it to methanol to cool it down quickly