Help With the Mallory 685
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Launching!
Joined: Dec 2007
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From: DeLaWaRe
Help With the Mallory 685 i wanna run this box just when im usung nitrous and keep my na tune when not running the nitrous ...my ? is, is there a way to run this box so i can hook it up ONLY when i wanna run the nitrous...i was looking for a way to mount it in the glove box and just like plug it in when down the track or using the nitrous on the street here and there and unpluging it and going back to the na tune when im done
any help would be great
Brandon
any help would be great
Brandon
Last edited by th3brandon; Mar 17, 2009 at 09:28 PM.
TECH Resident
Joined: Oct 2005
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From: Taxme, Ohio
You can't dis/connect the hyfire with the engine running but it does come with a bypass connector. I have mine mounted in the glove box and just like you are describing, I take it out of bypass mode when using the nitrous. I even ran an LED in parallel with the input power so I have a signal light to remind me that the box is energized. The reason for that is the box will get good and hot after 20 minutes or so. Some have mounted it under the passenger seat where there is better air flow.
The 685 Hyfire VI is a great controller and I consider it the best modification for the money I have spent.
The 685 Hyfire VI is a great controller and I consider it the best modification for the money I have spent.
Thread Starter
Launching!
Joined: Dec 2007
Posts: 208
Likes: 0
From: DeLaWaRe
You can't dis/connect the hyfire with the engine running but it does come with a bypass connector. I have mine mounted in the glove box and just like you are describing, I take it out of bypass mode when using the nitrous. I even ran an LED in parallel with the input power so I have a signal light to remind me that the box is energized. The reason for that is the box will get good and hot after 20 minutes or so. Some have mounted it under the passenger seat where there is better air flow.
The 685 Hyfire VI is a great controller and I consider it the best modification for the money I have spent.
The 685 Hyfire VI is a great controller and I consider it the best modification for the money I have spent.
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From: colorado springs Elevation: 6035 ft
You can wire it up like me, I can run my box all day and it will only pull timing when the nitrous is armed and the window switch reaches 3,000 rpms. Use the purple window switch wire to ground your relay and run your retatd yellow wire off the 12 volt out of the relay and walah!
Staging Lane
Joined: Mar 2007
Posts: 74
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From: Canada
You can wire it up like me, I can run my box all day and it will only pull timing when the nitrous is armed and the window switch reaches 3,000 rpms. Use the purple window switch wire to ground your relay and run your retatd yellow wire off the 12 volt out of the relay and walah!
Why don't you want to use the box all the time?
Later,
Brad
Thread Starter
Launching!
Joined: Dec 2007
Posts: 208
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From: DeLaWaRe
i guess i could i was just trying to keep it off ..due to being in the glove boxs and getting hot...do u guys feel it will be ok to be on all the time in there or do these things have over heating problems???
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Staging Lane
Joined: Mar 2007
Posts: 74
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From: Canada
I know that they do produce some heat, but mine is in the engine bay, so I never really considered that aspect.
I guess that might be a reason for the bypass. Might want to make sure that the unit's power is removed as well. I think it would still create heat even if bypassed.
Later,
Brad
I guess that might be a reason for the bypass. Might want to make sure that the unit's power is removed as well. I think it would still create heat even if bypassed.
Later,
Brad
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Verdad Gallardo TECH Resident
Joined: Oct 2005
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From: Taxme, Ohio
Besides all of that, because I only use it with the nitrous (I have it wired into the nitrous circuit for timing and windows) the glove box is left open when in use. I choose not to use it as a DD part because it adds one more component to the ignition system. A good opti-spark high energy system is more than adequate but the Mallory adds features to the function. The additional voltage was never an issue for me so I don't even want it on for regular driving. To each his own though.
I wired mine to run all the time and only pull timing when the nitrous is armed. Also it is in the glove compartment and has been in there the last year and a half with no problems what so ever. I also daily drive my car and it never acts up. That being said I have seen people have problems with them in a confined space, Mallory even recommends putting it somewhere with good air circulation.
