Meth Setups
Burning Brakes
Joined: Nov 2010
Posts: 1,112
Likes: 62
From: Chicago IL
I have there trunk mount kit in one of my shop cars. The setup came with plastic feed line and it melted. Caused the car to detonate and blew a head gasket. We ended up getting a stainless feed line to replace the cheap plastic line so figure that into your decision.
Drifting
Joined: Aug 2006
Posts: 1,629
Likes: 6
From: Little Rock Arkansas
I will say that we have not had any other issue out of the kit other the plastic line melting. Pump,tank and controler seem to be real nice. We have had it for 4 years or more.
Thread Starter
Pro
Joined: Mar 2005
Posts: 511
Likes: 17
From: Coralville Ia
Anyone still using a MAF setup? Pics please... trying to decide what I need to do.. don't want to spray before MAF, and the current setup doesn't leave a lot of room to get it done.
Thanks,
JesseJay
Thanks,
JesseJay
Premium Supporting Vendor
Joined: Oct 2004
Posts: 23,599
Likes: 1,224
From: Providing the most proven supercharger kits for your C5/6/7 609-752-0321
The safety features usually work like that (constant down from certain IAT), but there's a lot more in a tune than that. That's why I'd like to see real IATs rather than something that is due to spraying directly to the sensor...
Would like to see ECS comment the nozzle vs. IAT placement...
Would like to see ECS comment the nozzle vs. IAT placement...
IAT placement is done for the safety tuning factor. 99% of the people with meth have no idea what their IAT's would be at WOT pre meth or post meth, but everyone knows the effect of a blown engine.
Melting Slicks
Joined: Jul 2008
Posts: 3,002
Likes: 216
From: Houston Texas
2018 Corvette of Year Finalist
2017 C5 of Year Finalist
If you are making enough power to need meth then you are more than likely pegging the MAF and need to go speed density. Any reason why you are keeping the MAF?
Thread Starter
Pro
Joined: Mar 2005
Posts: 511
Likes: 17
From: Coralville Ia
Also, my tuner is not so keen on SD Tunes for street cars.
Drifting
Joined: May 2010
Posts: 1,342
Likes: 0
From: Elizabeth City, Outer Banks NC
Use the washer tank. Fiddled with the float and just another toy to see the light come on letting me know I"m getting low on juice...
What would we do without toys.
Meth on this side ,, that other stuff on the other.
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Racer
Joined: Sep 2009
Posts: 369
Likes: 2
When using the iat sensor for meth tune safety, has anyone seen the iat sensor fail? When they fail what does the ecu see? Failed high, failed low? Hopefully high then the safety factor would still work, my tuner claims 100% meth will kill the iat sensor quickly, so If we tune using the iat vs spark advance table I want to make sure if it does fail my motor doesn't go with it.
Burning Brakes
Joined: Jul 2004
Posts: 759
Likes: 12
From: Tampa Fl
When using the iat sensor for meth tune safety, has anyone seen the iat sensor fail? When they fail what does the ecu see? Failed high, failed low? Hopefully high then the safety factor would still work, my tuner claims 100% meth will kill the iat sensor quickly, so If we tune using the iat vs spark advance table I want to make sure if it does fail my motor doesn't go with it.
12 years spraying on an IAT sensor.. zero issues with IAT.
Safety Car
Joined: Jan 2008
Posts: 4,797
Likes: 52
From: Boise
The safety features usually work like that (constant down from certain IAT), but there's a lot more in a tune than that. That's why I'd like to see real IATs rather than something that is due to spraying directly to the sensor...
Would like to see ECS comment the nozzle vs. IAT placement...
Would like to see ECS comment the nozzle vs. IAT placement...
There IS NOT more to it than that. When meth is spraying that means you are in boost, which means as far as your PCM is concerned you are in "power enrichment mode", meaning that the PCM isn't referencing that "a lot more to the tune" section you are talking about here.
Also for you accurate reading ***** out there, you have to understand how this works. When you spray the meth into the intake stream it atomizes instantly, it's not like peeing into the wind. Nothing is entering your motor in liquid form.
The air cools down instantly and then a split second later it's combusted.
Melting Slicks
Joined: Oct 2003
Posts: 2,859
Likes: 4
From: Greensboro NC
I am glad I read this. I am upgrading my intercooler and supercharger intake pipe to 4". I was thinking of upgrading to dual alky nozzles and after reading this realized I had my alky nozzle after my IAT sensor. Is there any performance gains by putting the nozzle before. I am going to run dual nozzle. Any performance gains by doing this as well. Thanks in advance.
Drifting
Joined: Mar 2011
Posts: 1,412
Likes: 15
From: Richardson TX
Replying to this a year later so people don't read the thread and receive misinformation.
There IS NOT more to it than that. When meth is spraying that means you are in boost, which means as far as your PCM is concerned you are in "power enrichment mode", meaning that the PCM isn't referencing that "a lot more to the tune" section you are talking about here.
Also for you accurate reading ***** out there, you have to understand how this works. When you spray the meth into the intake stream it atomizes instantly, it's not like peeing into the wind. Nothing is entering your motor in liquid form.
The air cools down instantly and then a split second later it's combusted.
There IS NOT more to it than that. When meth is spraying that means you are in boost, which means as far as your PCM is concerned you are in "power enrichment mode", meaning that the PCM isn't referencing that "a lot more to the tune" section you are talking about here.
Also for you accurate reading ***** out there, you have to understand how this works. When you spray the meth into the intake stream it atomizes instantly, it's not like peeing into the wind. Nothing is entering your motor in liquid form.
The air cools down instantly and then a split second later it's combusted.
Nevertheless I think its a moot point. If the meth is spraying, that means you're in power enrichment mode, and nuanced stoichiometric calculations go out the window and you richen the motor up to 10.5:1 or 11:1 or whatever to get the most safe power you can. Who really cares if the IAT based PCM calculations are off by a bit? You'll just even out the fuel/air ratio by adjusting the PE table anyway. WOT tuning is the easy part, the other tuning takes more finesse, and the meth isn't involved in that tuning, so you'll get "clean" IAT readings.
Drifting
Joined: Mar 2011
Posts: 1,412
Likes: 15
From: Richardson TX
I am glad I read this. I am upgrading my intercooler and supercharger intake pipe to 4". I was thinking of upgrading to dual alky nozzles and after reading this realized I had my alky nozzle after my IAT sensor. Is there any performance gains by putting the nozzle before. I am going to run dual nozzle. Any performance gains by doing this as well. Thanks in advance.
I think its definitely a good idea. I think its the most practical and reliable failsafe method available.
Even if you buy a flowmeter guage or whatever to monitor the meth flow, by the time you're WOT or halfway down the drag strip, and you notice that your meth isn't flowing, its probably too late, you can't realistically react that quickly. Letting the PCM do it for you is better IMO, just make sure you're datalogging and looking at the data.
Melting Slicks
Joined: Oct 2003
Posts: 2,859
Likes: 4
From: Greensboro NC
Thanks for the reply. I have the Alky Control Systems kit. I also happen to have an extra nozzel. The jets are stamped M15. Could I use them to build my own duel kit? If not I will order the kit from Julio.
Burning Brakes
Joined: Jul 2004
Posts: 759
Likes: 12
From: Tampa Fl
Twin 15's is typically north on 900 rwhp..
Melting Slicks
Joined: Oct 2003
Posts: 2,859
Likes: 4
From: Greensboro NC
Last Dyno run was 715 rwhp. Installing bigger intercooler and 4" supercharger intake now. Should pick up some boost and a little more power. On a side note. my tuner has the gain **** on the meth controller at 4. When I hit the test button it stays red. If I turn it up and hit the test button it goes green. Wondering if the tune is so lite on meth. Smaller jet or running 2 nozzles is not needed. Thanks in advance Julio.