Gained 70 rwhp with meth

[SSlim]

How often are you guys having to refill? Seems like it would be a PITA on a DD

[JLE58]

How do you Tune meth for safety and not Power Im wondering?

[jordan 572]

Originally Posted by JLE58

How do you Tune meth for safety and not Power Im wondering?

I would guess by not advancing timing or increasing boost

[JLE58]

Originally Posted by jordan 572

okay, I have another question. Since the meth injection nozzle is supposed to be mounted after the maf/iat sensor to avoid issues with contaminating the sensor how does the ecu receive the correct iat since the water/meth is being injected after the iat sensor?

With meth you are worried about the Maf getting contaminated if spraying pre MAF/IAT You can take the two wires for the IAT and relocate the Iat after the meth. You just need to buy a push in type Iat sensor for a ls1 and a pig tail.This is if the system you are running doesnt relocate the IAT sensor already.

[JLE58]

Originally Posted by jordan 572

I would guess by not advancing timing or increasing boost

Yeah I was kinda hinting at something... I dont see how you can do it. You are either running rich or your tuning for meth. I dont see how people say they put meth on their car and didn't tune for it Which means they are running pig rich or they dont have a clue what it was tuned for.

[SRT10KLLR]

Originally Posted by jordan 572

I would guess by not advancing timing or increasing boost

Originally Posted by JLE58

Yeah I was kinda hinting at something... I dont see how you can do it. You are either running rich or your tuning for meth. I dont see how people say they put meth on their car and didn't tune for it Which means they are running pig rich or they dont have a clue what it was tuned for.

If your A/F is in the 11.8-12.0 range and you spray a 50/50 mix od water/meth in you will be a little rich but not too bad. It will do a good job of cooling the air. The cooler air and increased octane will help keep the engine from detonation. If you are using two big as nozzles and 100% meth than you should definitely pull some fuel out though.

I was planning on using the IAT's to add timing and adjust the fuel when the meth was spraying. If the nozzle gets clogged, the pump fails or it runs out of meth then the engine could still run without it.

If you make the adjustments without using the IAT's by just adding timing and pulling fuel for the meth then you better hope it does not fail.

[MA2010SS]

Originally Posted by SRT10KLLR

If your A/F is in the 11.8-12.0 range and you spray a 50/50 mix od water/meth in you will be a little rich but not too bad. It will do a good job of cooling the air. The cooler air and increased octane will help keep the engine from detonation. If you are using two big as nozzles and 100% meth than you should definitely pull some fuel out though.

I was planning on using the IAT's to add timing and adjust the fuel when the meth was spraying. If the nozzle gets clogged, the pump fails or it runs out of meth then the engine could still run without it.

If you make the adjustments without using the IAT's by just adding timing and pulling fuel for the meth then you better hope it does not fail.

SRT hit that one on the head, I would not advance the timing as much for power maybe, some do, some don't...AFR I would lean it a little and have the meth start spraying after 3lbs of boost...benifit would be the increased octane without the pricetag...I would also install all the warning devices too if there is a failure as a precaution

[JLE58]

Either way your still tuning for meth is what I was getting at. They just need to make a tank with two pumps one all the time and the other off a pressure switch, asco switch or whatever means we could figure out as standby. Meth pressure drops the standby pump kicks on. Use a relay to give you a light telling you that your running off the standby pump. This way you don't have to tune around a system because they are known to fail.

[MA2010SS]

Originally Posted by JLE58

Either way your still tuning for meth is what I was getting at. They just need to make a tank with two pumps one all the time and the other off a pressure switch, asco switch or whatever means we could figure out as standby. Meth pressure drops the standby pump kicks on. Use a relay to give you a light telling you that your running off the standby pump. This way you don't have to tune around a system because they are known to fail.

That's true, that is a pretty good idea too, possibly a duel sump tank w 2 pumps is a good safety measure with meth

[realcanuk]

Tuning properly for meth is not so simple. It involves nozzle size, turn on, ramp speed as well as keeping safe with the iats. With a PD blower you are better running off the maf than the map because boost comes in so early. It has great benefits but like everything, has to be done right.

[MA2010SS]

That is the route I was told to go also because of the PD blower, I will probably do that vs using the MAP, glad I am not tuning it just installing

[jordan 572]

I talked to Ted and he said he could increase boost by max 5 psi of I wanted to rely on meth. How. One everyone is so scared to run on meth when they have fail safes that pull timing, boost and add fuel? Obviously a failsafe can fail but Ted told me I would also have my stock waste gate psi to fall back on. It is somewhat risky but I don't see why you can't use meth to increase psi. I need an explanation.

[JLE58]

Originally Posted by jordan 572

I talked to Ted and he said he could increase boost by max 5 psi of I wanted to rely on meth. How. One everyone is so scared to run on meth when they have fail safes that pull timing, boost and add fuel? Obviously a failsafe can fail but Ted told me I would also have my stock waste gate psi to fall back on. It is somewhat risky but I don't see why you can't use meth to increase psi. I need an explanation.

At the end of the day we are all relying on some parts of our car to hold up to keep everything together. It all really depends on how much you want to push your car. I would do it but i dont care if i blow a motor or not... It really depends how much your willing to push the car with knowing anytime you really start to rely more and more on things to work Right the chance of something going wrong will go up more and more. Ted will do a great job of keeping everything as safe as it can be since he is great at what he does. If your willing to push the car more for the horsepower you want and know what something failing will do and your ok with that Then by all means go for it!

[Supercharged SS]

Originally Posted by jordan 572

I talked to Ted and he said he could increase boost by max 5 psi of I wanted to rely on meth. How. One everyone is so scared to run on meth when they have fail safes that pull timing, boost and add fuel? Obviously a failsafe can fail but Ted told me I would also have my stock waste gate psi to fall back on. It is somewhat risky but I don't see why you can't use meth to increase psi. I need an explanation.

Ask Ted to show you the pictures of my engine when the "unfailable" meth system shity the bed. Even though it does seem rare it most certainly happens.