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Go Back   IWSTI.com: Subaru WRX STI Forums > IWSTI Engine & Drivetrain > Water-Meth Injection / Nitrous & Intercooler Cooling


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Old 08-20-2008, 01:12 PM   #1
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Default Spec C tank question

I am going to be getting an Aquamist kit soon, and have been debating whether or not to get the Spec C tank to go with it. It seems to me that at lower levels there would be much more room for the liquid to move around during heavy cornering, possibly starving the pump. Would it not be safter to run meth out of the smaller intercooler spray bottle, as it is much narrower and wouldn't allow as much "sloshing"?

Thanks for the input


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Old 08-20-2008, 03:11 PM   #2
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Default Re: Spec C tank question

Quote:
Originally Posted by ThePigSTi View Post
I am going to be getting an Aquamist kit soon, and have been debating whether or not to get the Spec C tank to go with it. It seems to me that at lower levels there would be much more room for the liquid to move around during heavy cornering, possibly starving the pump. Would it not be safter to run meth out of the smaller intercooler spray bottle, as it is much narrower and wouldn't allow as much "sloshing"?

Thanks for the input
both the stock ic and the spec c have differnt levels so. And as long as mount the outlet at the lowest possible place you shouldnt have to worry about it. The pump can starve for awhile before it dies. Plus as long as your pump is lower then the tank it will gravity feed it so if sloshing does occur it would have to be constant in order for the pump to run dry.

Here is my crappy mspaint drawing to help explain.


Last edited by halfelite; 08-20-2008 at 03:17 PM.
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Old 08-22-2008, 06:36 AM   #3
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Default Re: Spec C tank question

The tank has a small sump where the output line goes to the pump, you would have to be low low on fluid for the pump to run dry. Any way some pumps have a specific dry run time before they hit the bucket.
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Old 08-23-2008, 02:07 PM   #4
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Default Re: Spec C tank question

Great, thanks for the info guys. I can't wait to install it and get it tuned.
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Old 10-28-2008, 07:52 AM   #5
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Default Re: Spec C tank question

The Spec-C tank also has internal baffles to minimalize the sloshing. The center of the tank where the pump would be fitted is at near the lowest part of the tank .
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Old 11-09-2008, 08:53 PM   #6
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Default Re: Spec C tank question

I run the spec-c tank into a smaller feeder tank that prevents the pump from sucking air during corners. Works like a charm. Track tested - mother approved.

With even 1/4 tank in the spec-c, the low level light will come on during hard turns. The baffles help some, but certainly not enough if you're planning on running on the track. If you keep the spec-c topped up regularly, you should be good though.


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