2nd Generation Specific 1986-1992 Discussion

Rx-7.com Suggestion For Egt

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Old 06-10-2003, 10:14 PM
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so i emailed rotary performance (rx7.com) about my EGT purchase. they suggest the downpipe, NOT the manifold. this is good, b/c i didn't want to go tapping into my wastegate or something and screw everything up.



now its just a matter of finding out what size the tapped hole needs to be. the directions are quite unclear on the tap size...
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Old 06-10-2003, 10:15 PM
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measure it
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Old 06-10-2003, 10:35 PM
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i dont have a dial caliper.
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Old 06-10-2003, 11:22 PM
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Just find a nut that is the same size and thread pitch and drill the hole and have the nut welded to the top of the hole. Kind of like the bung for the O2 sensor.
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Old 06-10-2003, 11:31 PM
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good idea, but i dont have a welder. i have a tap and drill, but no welder. i'll get it in, just a matter of time
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Old 06-11-2003, 01:01 AM
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egt is bs.
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Old 06-11-2003, 01:09 AM
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Originally Posted by 1Revvin7' date='Jun 10 2003, 10:01 PM
egt is bs.
why do you say that?
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Old 06-11-2003, 01:36 AM
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the downpipe probably isn't thick enough to tap... the nut welded on is probably best.



the manifold *is* better. but alot harder as well. and if you have an S5. you'd need 2 gauges...
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Old 06-11-2003, 01:44 AM
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the DP might be too thin to tap. welded on nut is probably best.
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Old 06-11-2003, 01:16 PM
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egt are just a rough measurement of the air/fuel ratio....

Get a wideband o2....
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