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  #11  
Old 05-07-2009, 06:40 PM
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Default Re: NOS vs Alky

Ahhh ...

Well, basically, the progressive stuff is actually even more complicated than single shot stuff (and more dangerous without some sort of feedback). It's the same principle as the alky progressive systems, you PWM a solenoid (or solenoids) to control amount and do it based on a window switch (for RPM).

The one we built was more comprehensive and actually talked on the CAN bus (only worked on 2004+ CAN vehicles). We used engine sensor data (and hence there wasn't a bunch of external wiring and such ... just the solenoids to an underhood module that provided enough power to run them and talked on the CAN bus to the head unit.

Worked pretty well and was almost like supercharger in a bottle. The biggest thing was calibrating the PWM for the jets/motor to avoid going lean during less than WOT.

Just too prone to user error and misuse ...
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  #12  
Old 05-07-2009, 11:09 PM
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Default Re: NOS vs Alky

ahhh didnt know it was that in depth.... ill stick with the alky
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  #13  
Old 05-27-2010, 11:36 AM
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Default Re: NOS vs Alky

Forgive me because I'm a newbie, but are there safeguards in case the alky reservoir runs dry?
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  #14  
Old 05-27-2010, 01:43 PM
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Default Re: NOS vs Alky

yes, there are alarms /lights that let you know when the reservoir is getting low
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  #15  
Old 05-27-2010, 02:27 PM
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Exclamation Re: NOS vs Alky

Very important to heed the warning, because ignoring it means you will probably be looking at a set of headgaskets at minimum. Especially if you are tuning close to the edge.

Keep your system filled, and in good maintenance, and it will not be an issue. Regardless, this is one caveat to alcohol systems.
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  #16  
Old 06-03-2010, 11:22 AM
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Default Re: NOS vs Alky

The ISAC controller while pricey has safeguards to reduce boost when the alky runs low.
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  #17  
Old 06-03-2010, 12:24 PM
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Default Re: NOS vs Alky

I had to look that one up ... hadn't heard of it before...

http://www.isacalky.com/
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  #18  
Old 06-03-2010, 12:44 PM
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Default Re: NOS vs Alky

Quote:
Originally Posted by kenmosher View Post
I had to look that one up ... hadn't heard of it before...

http://www.isacalky.com/

It's a neat controller, More than one needs for mostly street given car but I do like the safety systems.

Just wish I had a motor to test it out right now.
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