you could always build your own, the spring in the valve i got was good for 0-25psi.
http://www.gusmahon.org/html/boostcontrol.htm

I have a ProSport MBC. It seems to work well now, but was too limited for the lower range.

Sixshooter, can you post your timing map? I'm curious to see how many chairs I kicked over in my table. ;)

use .22-.25v = 7.35 and 5v = 22.39

Will do Brain, thanks!

My spark map isn't tuned out. It is mostly the base one that came from Brain. It is safe and I haven't screwed with it except around the idle because the car runs fine with it.

https://www.miataforumz.com/attachme...ine=1335216777

I'd select the entire section from 128 to 230, hit the plus key and add 6.

then id select the first 9 cell 34 kpa to 1500RPM and make them all like 10-12. thats more timing than you need at idle.


the rest is exactly as I have mine.

Thanks for the feedback guys! Much appreciated!

And that would be totally safe timing to run on the track in the summer with everything heat soaked? I'm asking because I'm a total Nancy when it comes to taking chances with boosted detonation.
Aaawww. I'll try it but my car idles really, really well these days. After much adjusting the only hunting it does is when the AC cycles and even that is pretty minimal now.

i run 16° at 205kPa. your timing drops off way too much once you enter boost.

Tomorrow is the dyno day. I have an hour scheduled for tuning. I'll post pics and video.