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-   -   Good boost control option? (https://www.miataturbo.net/diy-turbo-discussion-14/good-boost-control-option-105532/)

Matsie 07-11-2021 09:12 AM

Good boost control option?
 
Hi,

I was thinking of using that solenoid that sits on the intake manifold of 1.8 engines in NA's (picture added) for boost control, as it works the exact same way a 3 port boost control solenoid works and I am not using it anyway.

Does anyone have experience with this? If yes, what's the frequency and min/max duty cycle of the solenoid?

Thanks
https://cimg6.ibsrv.net/gimg/www.mia...29851f44a3.jpg

shuiend 07-11-2021 09:13 AM

It has been discussed in the past. Not sure if I have seen anyone ever try it out.

Matsie 07-11-2021 09:17 AM


Originally Posted by shuiend (Post 1604106)
It has been discussed in the past. Not sure if I have seen anyone ever try it out.

Ah okay, I was just wondering. I think I will try it anyway when the turbo comes in and I will post my results.

Lokiel 07-11-2021 07:04 PM

Not sure if this means anything, but the MSM also has one of those Mitsubishi solenoids mounted on the cold-side, above the wheel well, along with all the EGR and vacuum control spaghetti but used a different 2-port solenoid for boost control.
The fact that Mazda already had those Mitsubishi 3-port solenoids in the car and elected to use a different one for turbo boost control surely meant something?

FOR SCIENCE, please continue to investigate this and write up your findings.

Matsie 01-10-2022 11:21 AM

Have been running the PRC solenoid as a boostcontroller for a few days now with no issues. I haven't done a lot of tuning yet except some faster spool tuning in open loop and it seems to be working just fine. Will post more when I tuned my boost control table.


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