Hey guys, I've had a turbo Miata for about 5 years now thanks to this site. I have no build thread really to speak of, BUT I do plan on making one for may new build this winter. I have a 99 1.8 in my garage that is going in this winter with a new turbo setup, since my current setup burns a little oil on decel (valves? turbo going? rings?, not sure, don't care).
Anyways, I've been running limp-dick boost for most of the time I've had it boosted. I hit an issue where over 10psi it would blow out spark, and was somewhat satisfied with the 180whp (virtual dyno) or so I was making. However just recently I figured I would need a new ignition system for the upcoming 1.8 build, so why not do it while I have the 1.6 still in the car and see what it can do. Since adding COP's I've been able to max out the turbo kit, and it's a night and day difference - even on 10psi that I was running before. So to anyone reading this, COPS are the shiznit.
Onto the setup, 1.6 with 175k miles, greddy turbo, turbo tony 2.5 inch downpipe, ebay fmic, 550cc rx7 injectors, mspnp, COPS, 2.5 inch exhaust, and i think that's all that is relevant.
15psi PEAK, 13psi by redline. AFR were steady 11.8, richening out to about 11.2 by redline. I had JUST street tuned in with VEAL on the new higher boost about 20 mins prior to this dyno. YES it spools slow. NO i don't know why. The dyno was at 5500ft elevation, and that certainly will effect your spool. Yes this dyno is corrected. No exhaust leaks to speak of, NO boost leaks 100% sure on that ( i built a tester to be sure ).
It's fast now though, at least. Time to pull out this motor, and onto my new build. The new build is shooting for more power under the curve, and about 250whp uncorrected.
I have a log of the dyno runs as well, and will update it later once I find the laptop charger.
Thanks Mt.net, i'd never have a car this fast without you guys. Thanks brain for the huge help on my timing map, i'm sure the car would have 'sploded with the extra boost on my old map.