C16 or Meth Injection?
08-16-2017, 05:48 PM
#22
Launching!
Humidity will effect the cooling effects, but while spraying meth I stay about 10*under ambient in very humid south florida...if dry i'll see it cool up to 25-30* under.
Few manufacturers recommend using over 50/50 water/meth, just FYI. Good place to start is 1-1.5cc per hp on 50/50mix.... 1.5-2cc per hp on 100%meth. Nozzles are usually sized by mm snow alky aquamist all have flow charts. You'll need multiple 1.0mm+ jets they'll flow 650cc+each depending on pump pressure
Few manufacturers recommend using over 50/50 water/meth, just FYI. Good place to start is 1-1.5cc per hp on 50/50mix.... 1.5-2cc per hp on 100%meth. Nozzles are usually sized by mm snow alky aquamist all have flow charts. You'll need multiple 1.0mm+ jets they'll flow 650cc+each depending on pump pressure
08-16-2017, 08:41 PM
#23
How much meth are u spraying? I'm running 50/50 with #6 nozzle (500ml I think) on my whipple 2.9 and it doesn't seem to affect my IATS much . Car usually runs *25-* 30 over ambient. Wondering if I'm spraying enough. Edit actually it's a 625 ml nozzle.
08-16-2017, 08:53 PM
#24
You may need to elaborate on IAT vs injector placement, as well as specifics of your intercooled (or not) setup. I have seen many people complain of what are likely erroneous IAT readings on PD blower installs. Especially in the case of a small A/W core in a PD blower intake made of aluminum, you are likely to get IAT readings which are heavily skewed toward coolant temps instead of changing quickly with actual IAT changes.
08-16-2017, 09:47 PM
#25
Ly6/whipple2.9. IAT is in back of blower case , after intercooler. Meth nozzle is 4-5 in before throttlebody. Afco pro heat x w/dual fans designed for gt500, Bosch pump, 2 gal res .running 70% water 30% anti freeze w/redline water wetter. 13-14 lbs boost. 50/50 meth 625ml nozzle. Progressive controller starts@7lbs
08-17-2017, 05:38 PM
#26
Humidity will effect the cooling effects, but while spraying meth I stay about 10*under ambient in very humid south florida...if dry i'll see it cool up to 25-30* under.
Few manufacturers recommend using over 50/50 water/meth, just FYI. Good place to start is 1-1.5cc per hp on 50/50mix.... 1.5-2cc per hp on 100%meth. Nozzles are usually sized by mm snow alky aquamist all have flow charts. You'll need multiple 1.0mm+ jets they'll flow 650cc+each depending on pump pressure
Few manufacturers recommend using over 50/50 water/meth, just FYI. Good place to start is 1-1.5cc per hp on 50/50mix.... 1.5-2cc per hp on 100%meth. Nozzles are usually sized by mm snow alky aquamist all have flow charts. You'll need multiple 1.0mm+ jets they'll flow 650cc+each depending on pump pressure
Is there power to be had just adding a meth kit without changing the tune?
I'm wondering if I shouldn't put a kit on before the change and play with it a little.
08-17-2017, 07:58 PM
#27
Ly6/whipple2.9. IAT is in back of blower case , after intercooler. Meth nozzle is 4-5 in before throttlebody. Afco pro heat x w/dual fans designed for gt500, Bosch pump, 2 gal res .running 70% water 30% anti freeze w/redline water wetter. 13-14 lbs boost. 50/50 meth 625ml nozzle. Progressive controller starts@7lbs
08-17-2017, 08:47 PM
#28
While that is certainly a good arrangement, the IAT will never see much of the cooling effect of the meth. The intercooler will dampen the effect too much before you ever get to the IAT. One of the big advantages to using meth with an A/A IC is that you can spray after the intercooler. This can actually give you temps below ambient. Unfortunately, this is usually impossible with most PD blower setups.
I just love asking people random questions SO let's say someone is running an LSA blower and purchases just the piece that goes in between the lid and blower from nitrous expresses nitrous kit but rather than nitrous injects meth through that plate system. So it injects after the air comes through the lid. Would that have the same effect as if you were to spray after the intercooler in a turbo kit?
08-17-2017, 10:00 PM
#29
While that is certainly a good arrangement, the IAT will never see much of the cooling effect of the meth. The intercooler will dampen the effect too much before you ever get to the IAT. One of the big advantages to using meth with an A/A IC is that you can spray after the intercooler. This can actually give you temps below ambient. Unfortunately, this is usually impossible with most PD blower setups.
08-18-2017, 07:52 AM
#30
Meth artificially lowers IAT by a significant amount. With a fast acting sensor, you can have timing immediately pulled if the meth quits spraying. This isn't 100% foolproof, but is usually effective enough to save a motor. There are many more complicated ways of reducing risk, but they tend to require more effort.
08-18-2017, 07:56 AM
#31
Launching!
without tuning you may feel a little gain but it will be minimal, along the same line as running 100octane on the same tune. you'll notice more the resistance to detonation, car won't heat soak during back to back runs, but with colder iats. yea you can throw it on before and get a feel for it...water/meth mixes, jet sizing, reliability, and predictability of the controller when it will start spraying
08-18-2017, 08:18 AM
#32
Launching!
While that is certainly a good arrangement, the IAT will never see much of the cooling effect of the meth. The intercooler will dampen the effect too much before you ever get to the IAT. One of the big advantages to using meth with an A/A IC is that you can spray after the intercooler. This can actually give you temps below ambient. Unfortunately, this is usually impossible with most PD blower setups.
08-18-2017, 06:12 PM
#33
I have seen setups with a turbo where meth or water mix was sprayed pre turbo to increase compressor efficiency and post intercooler to drop temps more. I have yet to see enough data to quantify what conditions would make this worth the effort. Then again, I haven't really tried looking for it.
