Pre-Turbo Meth Injection

**mb3000** · 10-30-2011, 12:25 AM

Or even within a closer vicinity to the turbos.

Discuss!

**green-lantern** · 10-30-2011, 01:04 AM

Bad idea, even water particles into a turbo wheel spinning at 35K will cause damage. From everything I have read anyway.

**DocWalt** · 10-30-2011, 01:18 PM

If you can get the meth fully vaporized before going into the turbo it's ok. Be careful though, like green-lantern said, droplets of meth/water hitting compressor blades spinning at 100k is going to do a lot of damage. Same reason they didn't launch the shuttle when it was cloudy

Besides, the turbo is still going to do a good job of heating the air right back up.

**futurevr4man** · 10-30-2011, 02:10 PM

bad idea all around

**green-lantern** · 10-30-2011, 02:14 PM

This was talked about on the other site and I don't like to point someone there but it was a pretty in depth thread. It was in the advanced area. I don't know if they still have that area or not but you might be able to dig that thread up.

**mb3000** · 10-30-2011, 03:35 PM

Not something I would ever do, but a good conversation starter. It seems that spraying 100% meth about 1" from the compressor yields the "safest" results. Nozzle has to be aimed directly at the nut, with a .75 or .1 GPH nozzle. Don't get it wrong or else...

I'm more interested in post turbo spraying, say a couple inches away from the outlet on both turbos. Hopefully giving the liquid time to atomize before it gets to the intercooler, preventing the liquid from pooling. In theory.

**TT Eric** · 10-31-2011, 01:30 PM

Originally Posted by mb3000

Not something I would ever do, but a good conversation starter. It seems that spraying 100% meth about 1" from the compressor yields the "safest" results. Nozzle has to be aimed directly at the nut, with a .75 or .1 GPH nozzle. Don't get it wrong or else...

I'm more interested in post turbo spraying, say a couple inches away from the outlet on both turbos. Hopefully giving the liquid time to atomize before it gets to the intercooler, preventing the liquid from pooling. In theory.

You probably mean .75 to 1.0 GPH I guess ?

Eric

**mb3000** · 10-31-2011, 05:22 PM

Originally Posted by TT Eric

You probably mean .75 to 1.0 GPH I guess ?

Eric

Yes that's what I meant. Sorry about that.

**TT Eric** · 10-31-2011, 05:55 PM

I've looked into those jet holders and personally I would not bother with that, especially with small TD04's inlet, what a restriction it would make, plus we would need to find a way to introduce a line into the intake pipe to go to the holder...

About this picture :

Originally Posted by mb3000

I've talk with Rodney at AIS (alcohol injection systems), very very nice guy and he told me that this picture has been floating around the internet for sometime now. That impeller was not ran with any water methanol injection. Had it been using water methanol injection the impeller would be totally clean and not dirty. This damage was caused by not running an air filter in a really dirty environment...

I was asking him if they were selling .75GPH and he said that they do not offer nozzles this small, so I though maybe 1GPH... So I told him what I actually run (1000ml/min pre-throttle) and asked him what he would recommend me as pre-compressor nozzles, he said to not bother with 1GPH as it would do nothing, more like 4-5GPH (250-300ml/min) before each turbos... and this is additional to the 1000ml/min I'm already injecting before the TB. 1'' to 6'' before the turbos would be best.

Eric