SR20 setups?
#22
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I don't have A/C, but I still have power steering. This does not affect my power steering pump or lines at all, but if I had an A/C compressor, it would never work.
#28
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That wastegate actuator is adjustable and it came off of a 1980 Pontiac Sunbird turbo. The stock SR20 actuator I think mounts on the outside of the compressor, not the inside like I mounted mine. It is non adjustable, pre-set to 7psi I believe, and has a longer rod. You can easily fabricate a mounting bracket and if the actuator rod is too long, just cut it in 1/2, cut it down until it fits, and weld it back together.
#30
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Here's a link in case anybody else want's to see it:
https://www.miataturbo.net/showpost....3&postcount=57
I might pick up an exhaust clamp and try that.
https://www.miataturbo.net/showpost....3&postcount=57
I might pick up an exhaust clamp and try that.
#31
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Clocked it like so. ![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/34228-sr20-setups-img_4200.jpg?dateline=1329108253)
I can fit the actuator with one of the sets of holes for the bracket that was already drilled, but it pulls the rod out of the actuator maybe ~1/16th of an inch. I'd say about 1/6 of the way out in order to fit. Is that going to be a problem? Should I cut it and weld it ~1/16" longer?
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/34228-sr20-setups-img_4200.jpg?dateline=1329108253)
I can fit the actuator with one of the sets of holes for the bracket that was already drilled, but it pulls the rod out of the actuator maybe ~1/16th of an inch. I'd say about 1/6 of the way out in order to fit. Is that going to be a problem? Should I cut it and weld it ~1/16" longer?
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/34229-sr20-setups-img_4202.jpg?dateline=1329108253)
#32
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Know what I wish? I wish I could take a China charger 2871 compressor and make it fit my SR20 CHRA. I mean, use the 2871 compressor and wheel on my SR20 CHRA with the SR20 turbine wheel and turbine. It'll be a genuine garrett journal bearing CHRA and turbine, with a china compressor and wheel.
Did anybody ever think about doing this???
We all like the SR20 for the same reasons...they're dirt cheap, they last forever, and they spool FAST. I like it for the 1st 2 reasons...I'm sick of fast spool, and the SR20 turbo looses steam around 225whp. I want to still be cheap and dependable, but I also want to make 240whp without making my turbo max out.
Who digs this? Or do you guys think it's a lost cause and it would be a better idea to just buy a godspeed 3076 and run low boost like I planned?
Did anybody ever think about doing this???
We all like the SR20 for the same reasons...they're dirt cheap, they last forever, and they spool FAST. I like it for the 1st 2 reasons...I'm sick of fast spool, and the SR20 turbo looses steam around 225whp. I want to still be cheap and dependable, but I also want to make 240whp without making my turbo max out.
Who digs this? Or do you guys think it's a lost cause and it would be a better idea to just buy a godspeed 3076 and run low boost like I planned?
#33
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Join Date: Oct 2007
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Posts: 6,028
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I can fit the actuator with one of the sets of holes for the bracket that was already drilled, but it pulls the rod out of the actuator maybe ~1/16th of an inch. I'd say about 1/6 of the way out in order to fit. Is that going to be a problem? Should I cut it and weld it ~1/16" longer?
Last edited by curly; 02-13-2012 at 12:53 AM.
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