loockheed Posted October 7, 2018 Report Share Posted October 7, 2018 As a complete novice to this I would like to ask the panel which kit works the best for my link g4 , I will ask my mapper but would like to be fore armed with some good info so I can speak to him with some good understanding of the subject . the ecu is a g4plus on 2.2 cdb stroked to 2.35 Subaru. thanks in advance Quote Link to comment Share on other sites More sharing options...
PhilS Posted October 7, 2018 Report Share Posted October 7, 2018 I've also got a impreza ej20 v2. With the aem meth kit. I've yet to link it upto the g4+ yet, but pretty sure you can set it up so when it fails (I had a faulty wiring harness which caused intermittent cutouts) you can set it up as a input to give you a different boost/fuel table. There's probably a whole load of options and I'd be interested in seeing what any else has done. Quote Link to comment Share on other sites More sharing options...
lostsoul Posted October 7, 2018 Report Share Posted October 7, 2018 I have water/meth setup controlled by the ecu ( g4+) ... the ecu drives the pump via a SSR and I have it setup so that if the water/meth flow drops, tank gets below a set level or I just have it turned off, the ecu switches to a "safe" Fuel/Ignition and Boost table. When the tune is finished I can let you know how well it works or dosn't ;-) Quote Link to comment Share on other sites More sharing options...
loockheed Posted October 8, 2018 Author Report Share Posted October 8, 2018 19 hours ago, lostsoul said: I have water/meth setup controlled by the ecu ( g4+) ... the ecu drives the pump via a SSR and I have it setup so that if the water/meth flow drops, tank gets below a set level or I just have it turned off, the ecu switches to a "safe" Fuel/Ignition and Boost table. When the tune is finished I can let you know how well it works or dosn't ;-) Which kit do you have ? I can get hold of aqua mist or devils own with out a faf . I would imagine that there are preferences . Quote Link to comment Share on other sites More sharing options...
lostsoul Posted October 8, 2018 Report Share Posted October 8, 2018 I am not using a kit as such ... I am using a Snow Performance Pump and Safe Injection unit. Everything is run by the ecu, so I guess I have made my own kit. Quote Link to comment Share on other sites More sharing options...
Stevieturbo Posted October 8, 2018 Report Share Posted October 8, 2018 Most kits are very similar...so really whatever takes your fancy. If totally standalone, Aquamist is probably one of the better setups. But Prometh in the US is popular too, or Alky Control. I'd avoid the push fit pneumatic fittings most use though. Yes they are very handy, but inevitably they will always leak over time and possibly fail. Or if you must use them, be prepared to change fittings every year for example as a maintenance measure. Or it is easy enough to DIY build your own kit and control it from the ecu. Quote Link to comment Share on other sites More sharing options...
loockheed Posted November 24, 2018 Author Report Share Posted November 24, 2018 Sorry to drag this up again but am I better off running my kit from a separate controller or use my ecu ? Quote Link to comment Share on other sites More sharing options...
Stevieturbo Posted November 24, 2018 Report Share Posted November 24, 2018 Depends who's putting it all together and tuning it. Using the ecu could save some money as it removes the need for an external controller, but there really are a few ways you could do it, each with various pros and cons. Standalone setups are perhaps easier for a novice, but either way it will need tuned anyway so someone competent needs involved to get it all working properly. k fuku 1 Quote Link to comment Share on other sites More sharing options...
loockheed Posted November 25, 2018 Author Report Share Posted November 25, 2018 obviously im not going to do the tune and competent person will . can you give me the pros and cons of each way as I feel I have a better understanding of it now Quote Link to comment Share on other sites More sharing options...
loockheed Posted November 25, 2018 Author Report Share Posted November 25, 2018 Ive just joined devilsown forum I wonder what they will say about this subject …….. if im not too much of a novice ? Quote Link to comment Share on other sites More sharing options...
Stevieturbo Posted November 25, 2018 Report Share Posted November 25, 2018 Devilsown will probably want you to use their controller, and kit in general obviously...and there's nothing wrong with that. Really, discuss it with your tuner, to see what he can make work for you and your needs. If you can add a flow or pressure sensor on the line and apply any fuel/timing corrections based on that, then that can be the basis of a solid failsafe with regards tuning should the system fail. Although done right, they are very reliable these days. But with control on-board the ecu and via a SSR for the pump or similar, it just gives the tuner a bit more flexibility with how "progressive" the delivery can be. If just PWM'ing the pump, as most aftermarket controllers do anyway, then it doesnt really need anything fancy, simple works. So it's largely down to your tuner to decide how much water/meth they want to use, when they want to inject and how aggressive they might want any tuning to be Quote Link to comment Share on other sites More sharing options...
434josh Posted November 27, 2018 Report Share Posted November 27, 2018 I am using the devil's own tuner kit. They recommended letting my ecu controller it over their controller. I have the pump on a switch which also is connected to a digital input in my Link Extreme. When that digital input is active I use a 4d fuel/spark table to pull fuel, add timing and a duty cycle table with ssr to control a fast valve. This way the meth is always at 300 psi and the valve is pwm'd to pulse the spray. Works flawlessly. Dual 1000cc nozzles and a devil's own solenoid/fast valve. Quote Link to comment Share on other sites More sharing options...
loockheed Posted November 27, 2018 Author Report Share Posted November 27, 2018 thank you very much for this post , anyone else got anything to add. Quote Link to comment Share on other sites More sharing options...
Stevieturbo Posted November 29, 2018 Report Share Posted November 29, 2018 On 11/27/2018 at 3:16 AM, 434josh said: I am using the devil's own tuner kit. They recommended letting my ecu controller it over their controller. I have the pump on a switch which also is connected to a digital input in my Link Extreme. When that digital input is active I use a 4d fuel/spark table to pull fuel, add timing and a duty cycle table with ssr to control a fast valve. This way the meth is always at 300 psi and the valve is pwm'd to pulse the spray. Works flawlessly. Dual 1000cc nozzles and a devil's own solenoid/fast valve. You will never see 300psi, nor will 2x1000cc nozzles be as efficient as smaller nozzles. Well other than when the pump is pumping against the closed valve and if the pump has been adjusted to see a higher pressure. In fact, with nozzles that large I'd be surprised if you ever see much over 100psi. The pumps simply do not flow what the suppliers claim, and any pressure claims are against a dead head. I've tested the AEM big pump under load and in the real world at pressures required....realistically they're only around a 1200-1300cc pump, and that was with a quoted 1600cc worth of nozzle...and tested not fighting against boost pressure which would reduce flow further. Even with only a 600cc nozzle...my factory set 200psi pump, could never create 200psi. With 1600cc worth of nozzle, in the car, in real world use max pressure I see is around 140psi....so if using say 40psi boost, that's now only 100psi of effective pressure to inject, so even less flow. But stick a pressure sensor on the line and log it for yourself and use this to control any fuel/spark adjustments, rather than what you're currently doing which offers no failsafe. It's a cheap and easy way to monitor what the system is doing, and could be an eye opener. It's a pity nobody seems to have done much testing on the various systems and pumps out there to prove or disprove the suppliers claims. loockheed and MagicMike 2 Quote Link to comment Share on other sites More sharing options...
Adamw Posted February 17, 2021 Report Share Posted February 17, 2021 @RamEvo3 I have deleted your post as this forum is not here to support other ECU manufacturers customers. You can PM stevieturbo directly if you want to discuss your system with him but please respect the forum is here for Link ECU users support - even when the subject may not necessarily be specific to a certain ECU. Quote Link to comment Share on other sites More sharing options...
ellisd1984 Posted February 17, 2021 Report Share Posted February 17, 2021 Cooling mist do a kit for connecting to stand alone. I'm going to go down this route and use a pressure sensor as a safety window. Haven't decided if i'm going to pulse the pump with a SSR or just switch the pump with a standard relay and pulse a solenoid https://www.coolingmist.co.uk/index.php?route=product/product&path=59&product_id=94 Quote Link to comment Share on other sites More sharing options...
evo_gerard Posted February 18, 2021 Report Share Posted February 18, 2021 i'm using the aem kit with the boost safe wired to a digital input. if the kit experiences an error the boost safe goes to ground. so i tuned without water/meth first and used to 4d fuel and ignition and a 2nd boost table to adjust for the water/meth. Quote Link to comment Share on other sites More sharing options...
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