How do I eliminate the AST from my system??

 
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Old 08-17-01, 01:43 PM
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How do I eliminate the AST from my system??

Are there any web sites that tell you (with pics preferably) how to eliminate the AST from the system??? I didn't see this on Rob Robinette's site. Any help would be appreciated!! Thanks

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Old 08-17-01, 03:22 PM
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Tad
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i've been told that it's better to replace it with a new ast
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Old 08-17-01, 03:30 PM
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3rd gen

On my Mazda reman motor there are no holes for the M2 piece to go onto....Anyone ever run into this problem?
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Old 08-17-01, 05:27 PM
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STEP #1 Remove AST





STEP #2 Install M2 AST elimination kit

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Old 08-17-01, 11:27 PM
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It is beeter to replace it with an aluminum one. Removing it reduces the amount of coolant volume and lowers the cooling system's efficiency.

The AST removal arose from racing where the cars are modified enough to negate the removal effects: much larger front grill opening, larger radiator, heavy duty oil coolers, etc.

Many owners perform the removal without obvious consequences, but then again...maybe you don't really need auto insurance either. Isn't every bit of protection worth it?
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Old 08-18-01, 09:28 AM
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where can i pick up an aluminum one?
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Old 08-18-01, 10:22 AM
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Originally posted by psyco RX
where can i pick up an aluminum one?
http://www.pettitracing.com
There are a few more sources on my links page.
http://7sins.rx7life.com/
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Old 08-18-01, 12:57 PM
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Would the AST have been removed or replaced when a PFS intercooler and cold air induction upgrades were done?? Or do I still need to look for the AST and upgrade it with a Pettit Aluminum AST?
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Old 08-18-01, 01:03 PM
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I have the PFS IC and Intake, and my TriPoint AST will not fit well. The PVS IC has a mounting bracket for the stock AST that puts it right inbetweent the in and out pipes on the IC. Rather good engineering, but the aftermarket ASTs are cylinders and don't fit. You have to make an extension bracket to lower it about 1.5 inches.

Mine is lowered, but is a little close to the belts for my comofrt, and is blocking the IC more than I would like. So a deletion kit may be in my future.

-Erik
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