Methanol/water injection pre-turbo

[tekdeus]

Here is a very interesting concept that a very small number of people are trying these days, most of them having great success: Spraying water/methanol directly into the turbo to cool the air AS it is heated by the compressor wheel, making it dramatically more efficient, lowering outlet temps, and increasing mass flow and power. Some report intake air temps LOWER than ambient, which allows the user to completely remove the intercooler, and plumb the turbo outlet directly into the intake (imagine a 7M with only 1 foot if intake pipe?:biglaugh

Many cars in the past would draw gasoline misted through a carburetor directly into the turbo with no harm to the blades. IJ (Ian) did this in the past; plus I've heard that this was the stock configuration on a 1980 turbo Trans-Am.

Here are some links and quotes I've found searching the net. Discuss!

http://www.supraforums.com/forum/showpost.php?p=6846492&postcount=5
(^^^Not risky at all. I have 3 nozzles in my meth setup. One fires directly into the turbo, two larger ones pre- throttle body. NO issues what so ever. However, I use pure meth.
Go for it, your AIT temps will thank you! Ive had my IC have frost in the dead summer at night after a long pull. BTW, I am fairly confident I could get away with my boost level(40psi with an 80mm turbo) with 100 and my meth setup. I run 110 though for added peice of mind.")
http://www.aquamist.co.uk/phpBB2/viewtopic.php?t=267
http://www.alcohol-injection.com/forum/technical-questions/pre-turbo-safe-1629.html
http://www.dieselbombers.com/cummins-corner/4634-pre-turbo-water-meth.html
http://www.alcohol-injection.com/forum/diesel-engines/pre-turbo-nozzle-placement-1455.html
http://www.cumminsforum.com/forum/g...e/108850-ill-effects-pre-turbo-injection.html

 

[dslocal]

Most of the links you posted were from diesels, I really would see no harm in doing this as long as you didn't use an intercooler. I see the intercooler acting as a condenser and causing the meth to separate from the air.

 

[charlesshen]

Most of the links you posted were from diesels, I really would see no harm in doing this as long as you didn't use an intercooler. I see the intercooler acting as a condenser and causing the meth to separate from the air.

think water alcohol mix would may have same questionable issue?

 

[rayall01]

Then run straight meth, or meth/alcohol. I would do it that way if I had the money to do this.

 

[TurboStreetCar]

paging IJ..............

 

[IJ.]

I run a 48/52 mix as I use the washer reservoir as my tank so I don't want to be spraying a flammable mix on the car while driving

 

[suprahero]

Summit sells a 49/51 mix called boost juice and that is what I"ve been using. I've since bought a five gallong container of 99.9% methanol alcohol so I could mix my own. I think I like it 51/49 or as close to that as I can.

 

[rayall01]

Is there a condensation issue with that mix? And wouldn't straight meth, or meth/alcohol evaporate faster, providing a greater degree of cooling? If cars can run safely on propane, couldn't they be made to run safely with a flammable injection material as well?

 

[IJ.]

Again personally I wouldn't.....

 

[10secdream]

I use a 50/50 mix by volume as it is not flammable as well.

 

[IJ.]

I use a 50/50 mix by volume as it is not flammable as well.

Might want to test it to make sure
(that's why I ended up at 48/52, 50/50 still lit off on the ground)

 

[rayall01]

Again personally I wouldn't.....

Ouch! How did that happen? Was there a burnt intake valve, or bad valve adjustment? Seems like some sort of ignition source must have been present.

 

[charlesshen]

^ i think stock manifold probably would have held up since i looks like the weld on the manifold split.
the weld it self should have been stronger then the rest of the material just a guess

 

[Canuckrz]

^ True but if that happened would you want the manifold to hold up and for the explosion to do damage elsewhere?

 

[dslocal]

you guys have kinda gotten off topic, The whole question was wether or not it is safe to spray the water,meth straight into the turbo inlet, not your mixture ratio.
I said earlier the only problem I saw by doing this is that the mixture might condense out of the air in the intercooler, Do you guys think this could happen or do you see any other problems with this setup?

 

[87M-GTE]

again personally i wouldn't.....

I guess you didn't see this in time..

 

[rayall01]

you guys have kinda gotten off topic, The whole question was wether or not it is safe to spray the water,meth straight into the turbo inlet, not your mixture ratio.
I said earlier the only problem I saw by doing this is that the mixture might condense out of the air in the intercooler, Do you guys think this could happen or do you see any other problems with this setup?

While it's true that it's drifted a bit, I think it will eventually divulge the answers we seek. Plus, this is all good information, and debate, which can open people's mind's a bit more. I'm seeing from the posts, a tendency to infer that it would not be a problem. I'm thinking that if it were to condense out, then the intake charge would become flammable, and pose the same hazard as IJ illustrated. Though for the life of me, I can't see how a flammable intake charge could ignite prematurely, without some kind of combustion source, as in a burnt, or maladjusted intake valve.

 

[7thousandpiecesMGTE]

I guess you didn't see this in time..
View attachment 29751

oh he saw it, he just slammed the laptop shut and ignored it like a true racer would! :biglaugh:

 

[GC89]

I guess you didn't see this in time..
View attachment 29751

oh he saw it, he just slammed the laptop shut and ignored it like a true racer would! :biglaugh:

Its cuz he wasnt double clutchin like he should!



I considered doing this as well a while back, I was plannin on only running a little juice to see how it would react but I was worried about getting water pooling in the inter cooler. I thought about taking the front end off and doing a few runs then pulling the intercooler and seeing whats there. In the end I decided I would be better off just waiting and going with a aem kit pre throttle body down the line.

 

[tissimo]

I would worry about the condensation in the intercooler, and wouldn't the turbo flow less air now since it has the pass the meth/water mix through it as well? Also I wouldn't really want water drops hitting my compressor at 100+k rpm