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Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars


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Old 12-17-2006, 02:03 AM   #1
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Will a CA wastegate fit a SR T25?

I got a T25 from my friend and it doesnt have the wastegate actuator, My question is will a wastegate from a CA18ET fit on a Sr20 T25? Are they set to the same PSI?
Ive searched but i didnt find any info on this.

Thanks

*Edit* Heres some pictures.
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Old 12-17-2006, 01:00 PM   #2
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1st: The wastegate is internal, and integrated into the turbine housing itself. You won't be swapping the wastegate, but just the actuator itself.

2nd: Yes, you can make it work. It may require you to fabricate some sort of mount to hold it, but it can work. Don't be afraid to build something out of hard metal strap pieces.

I'd reccomend an actuator from a bigger turbo before one from a smaller turbo, though. The actuator from the CA is going to run less boost than the SR actuator would, and its pretty weak and probably worn out from years of abuse anyway.

A good aftermarket actuator or one from another OEM turbo vehicle could be fabricated onto your SR turbo just as easily as making the CA actuator fit. In the end, you will have steadier boost, a wider power band, and the ability to hold higher boost most likely.









This actuator was an adjustable aftermarket piece. We built the bracket from strapping material we got at the hardware store. It's welded together and then JB welded and bolted to the actuator itself.
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Old 12-17-2006, 06:37 PM   #3
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Wow thanks for your very detailed w/ pics reply
+ Rep for you!
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Old 12-17-2006, 08:15 PM   #4
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Not a problem. Always happy to help someone out.
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