[Turbod]

Originally Posted by Pladi

Any reason why you picked such a large nozzle for meth. Close to 1000cc ?

It was what was recommended over on N54tech when I bought it 4 years ago. I have seen people run a single CM14 and even a CM7 with a CM10. I haven't had any issues. My 2.3 gallon tank lasts me over a month (I don't floor it often). I have the newer HPFP so the more I spray the more boost I can run.

Do you spray methanol? What size nozzle do you use?

"super atomizing injector size CM10 (940cc @100psi)" I have their 200 psi pump but I'm not sure how many cc/m it pumps out because I don't know what the normal operating pressure is.

[Cory S]

900-1000cc nozzle is the standard for the average boosted 500-650hp engine anyway. Especially when spraying over 70% Methanol and using it as up to 10% of additional fueling.

[Pladi]

Originally Posted by Turbod

It was what was recommended over on N54tech when I bought it 4 years ago. I have seen people run a single CM14 and even a CM7 with a CM10. I haven't had any issues. My 2.3 gallon tank lasts me over a month (I don't floor it often). I have the newer HPFP so the more I spray the more boost I can run.

Do you spray methanol? What size nozzle do you use?

"super atomizing injector size CM10 (940cc @100psi)" I have their 200 psi pump but I'm not sure how many cc/m it pumps out because I don't know what the normal operating pressure is.

Ok so it depends on your set up and power goals. Obv. So i am not saying its wrong but was curious how you came up with that nozzle.

When running meth only you can go larger nozzle but for 50/50 i think the CC match the HP. So 500CC for 500HP and so on. For 100 % meth i think a Do7 would maybe be more appropriate for 200 PSI pump.

This has been my experience. I have been int touch with the Aquamist owner 'Richard" alot and thats what i got from him. He is a real expert.


The idea of METH is not to boost power directly but boost octane so you can then run more timing and boost . MEth alone esp when overdone, does not increase power it actually decreases.

There is a reason why almost all places recommend 50/50. Water has benefits of its own. But you need to maximize this with a tune.


For me 375cc has been enough to suppress my knock completely for OTS maps. I am not anywhere near you power levels though.

Ultimately i want to port inject meth with injectors and not nozzles. I will be working on a controller for that. I built my own meth controller because electronics is my field. I measure TMAP/MAF and RPM to calculate true load conditions of the engine then decide when and how much to to spray. I use a microcontroller for that. I use a 3-D or 3 input table with the data with MATLAB.

[Cory S]

The #1 reason why 50/50 is recommended, is safety from ignition/combustion. Most systems will actually provide the best cooling/octane/power advantages around 65-80% Methanol. Some make best gains on 100%....

[winjury]

Originally Posted by Turbod

So after putting about 20,000 miles on the turbo I pulled it off and sent it to Pure for a rebuild before installing it on my X1. They have revised the compressor wheel yet again and this time made it slightly larger than the V1 and V2. Hopefully this will help overcome the drivetrain loss of xDrive.

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yup, mine was the 8th made with the new wheel Because they upgraded their build in the middle of my order the upgraded mine free of charge. I just received it in the mail 2 days ago.