Bought a meth kit, where should I place the nozzle?
Bought a meth kit, where should I place the nozzle?
I bought a WMI kit from Cooling Mist at an uber cheap price. I would like to know your opinions on where to install the nozzle. I have a Vortech setup and I'm not sure if the Water/Methanol would cause any damage to my MAF so should I place it before the maf or after? I believe before would be better as my IAT sensor would automatically advance timing due to the cooler temps....but if it'll damage my MAF in the process than maybe after the maf would be a better place to put it.
Thoughts?
Thoughts?
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From everything I've read and researched it's best to place it after the MAF. You'll want to retune it for the meth, put your meth map in slot 2, ect.
Placing it before the MAF and relying on the ECU to make the adjustments automatically is a recipe for disaster, IMO.
Placing it before the MAF and relying on the ECU to make the adjustments automatically is a recipe for disaster, IMO.
I guess post maf it is. I would have prefered pre maf though as the ECU would automatically advance the timing due to the cooler temp. Has only Mr_pharmD tried it pre maf?
^i would still think it's better after the maf because you get to control your timing rather than letting the ecu do it.
if you're adding it for cooling purpose, i'd say yeah, pre maf is fine. but if you're looking to advance timing, then post maf so u get to adjust to your needs.
if you're adding it for cooling purpose, i'd say yeah, pre maf is fine. but if you're looking to advance timing, then post maf so u get to adjust to your needs.
I will let you know how it is pre MAF due to i am installing my snow kit right now. I will be running just water due to i am looking for the max cooling properties alone with no affect to my A/F ratios with the meth. I will be installing the water injector nozzle right at the intercooler discharge pipe. I feel by the time the water passes the MAF it will be mostly vaporized at that point having no ill affect on the meter. Plus i want to see the temp difference with the water and without while monitoring through my multifuction blitz controler which takes the IAT reading right at the MAF. If my MAF get's damaged then i will just purchase another MAF, install the nozzle down stream and call it a day. Not my DD any ways just a toy.
Last edited by JET MECH; Aug 16, 2010 at 01:06 PM.
stock ecu doens't "advance" timing. It has 2 maps, low det and high det. Low det is what you run in all the time, it's your main map. The only map the ecu can switch to is a high det map which is set at a lower timing setup. It's only a safety device and not a performance device. It will only pull timing.
you're running osiris right?
stock ecu doens't "advance" timing. It has 2 maps, low det and high det. Low det is what you run in all the time, it's your main map. The only map the ecu can switch to is a high det map which is set at a lower timing setup. It's only a safety device and not a performance device. It will only pull timing.
stock ecu doens't "advance" timing. It has 2 maps, low det and high det. Low det is what you run in all the time, it's your main map. The only map the ecu can switch to is a high det map which is set at a lower timing setup. It's only a safety device and not a performance device. It will only pull timing.
Actually the ECU will advance ( or rather pull ) timing based on intake air temperature. The higher the IAT, the lower the timing will be. The maps you are talking about are an On/Off kinda thing based on engine misfire or knock. The IAT maps are temperature dependent and are consistently being calculated.
The only thing involving temps is coolant temp and that's for idle. There are zero other maps to adjust timing based on temps.
When i was tuned with osiris, my timing log was exactly the same from my first pull with low IAT's to a whole day of racing in 90* temps with 160* intake temps. Timing didn't change a single bit.
Check your logs, you'll notice that timing will not change when IAT's change.
where is that located? I've never seen this AIT temp map on the stock ecu.
The only thing involving temps is coolant temp and that's for idle. There are zero other maps to adjust timing based on temps.
When i was tuned with osiris, my timing log was exactly the same from my first pull with low IAT's to a whole day of racing in 90* temps with 160* intake temps. Timing didn't change a single bit.
Check your logs, you'll notice that timing will not change when IAT's change.
The only thing involving temps is coolant temp and that's for idle. There are zero other maps to adjust timing based on temps.
When i was tuned with osiris, my timing log was exactly the same from my first pull with low IAT's to a whole day of racing in 90* temps with 160* intake temps. Timing didn't change a single bit.
Check your logs, you'll notice that timing will not change when IAT's change.
It's true we don't have access to those corrections, but at least some corrections are being made from my experience.
Your going to have to tune a bit, depending on what size nozzle your using. You dont want it to drop more than 1point on your afr, if it does then your spraying too much. As for automatically advance timing, ehh not really. Your going to have to retune and advance it, also try not to spray the maf, me personally iv never liked the idea of spraying into a hot sensor that is receiving voltage.
where is that located? I've never seen this AIT temp map on the stock ecu.
The only thing involving temps is coolant temp and that's for idle. There are zero other maps to adjust timing based on temps.
When i was tuned with osiris, my timing log was exactly the same from my first pull with low IAT's to a whole day of racing in 90* temps with 160* intake temps. Timing didn't change a single bit.
Check your logs, you'll notice that timing will not change when IAT's change.
The only thing involving temps is coolant temp and that's for idle. There are zero other maps to adjust timing based on temps.
When i was tuned with osiris, my timing log was exactly the same from my first pull with low IAT's to a whole day of racing in 90* temps with 160* intake temps. Timing didn't change a single bit.
Check your logs, you'll notice that timing will not change when IAT's change.
IAT vs. Timing is in the stock ECU...osiris doesn't have this map though ( just like it doesn't have a million other maps the stock ECU has ). I made a topic about this in the tuning section.
I have tuned various ECU's from various automotive companies and have yet to see an ECU that doesn't have a Timing vs. IAT. Be it GM, VW, BMW or Nissan.
Regardless.....post MAF it is.
Last edited by GT-ER; Aug 17, 2010 at 05:01 PM.