EMU has a voltage clamp - and the int-x is MAP only; so they both work ok.

Even with the EMU I got a lot of backfires; only one stall though.

 

Oh it was already running with the AP?

Are you using the same tune?

 

oh, my bad. nm then

so if that's the case...there has got to be another issue....i say coils/plugs still

 

I use an HKS VTA.
No idle issues and the rich state after venting is pretty much a non-issue, other than the sometimes spectacular fireballs at speed.

 

Maybe a combo - bad coils and plugs + extra richness from the VTA BOV?

 

^yeah that!

 

the car still has about 6k miles on it think coil failure is a possibility?

 

I have 7000 and my coils are friggin toast; awaiting Ray now - it barely idles.

 

so i just ordered the atp adapter to recirculate my bov....im going to see if my work will let me borrow our ids scan tool with mazda software so i can test my coils...anything i should look into while i have the tool? i cant wait to get this sorted out i just want to drive the car

 

^^^^ I hear ya man I hope you get everything situated out...I've been cold turkey goin on 2 weeks now and counting...Hopefully I'll be up and running by the end of this week...

Amazing how there never seems to be a flawless install w/turbo setups...

 

^mine wasn't too bad....well with the exception of the almost 30 hour install....oh and then there was the oil leaks.....2 of them.......oh and my car runs dangerously lean under WOT.....CRAP! i fail.

 

we'll see how painful mine goes.

 

my 3071R install was flawless. Then again, MazdaManiac personally installed it. So go figure. Went from NA to 3071R plus upgraded fuel injectors, street tuning, and a day of dyno tuning.

 

Went from NA to 3071R........

That would be awesome.

S

 

well, that's the short of it. the longer story was NA to greddy, greddy to NA (dealer installs a new transmission), then NA to 3071R. Then 3071R to engine rebuild. After rebuild I go back to NA to get an exhaust leak fixed on the greddy manifold, and that is where I am at now.

The transmission issue existed before the turbo, dealership couldn't work on the car while it had the turbo and no cat installed, so that's why that was done - it wasn't removed to fool them or anything.

I'm actually going back to turbo, unfortunately I sold my 3071R kit to someone to recoup the engine rebuild costs. We all know how exclusive the 3071R kit is, so it wouldn't be easy to get it back. This time around I'll be going to a top mount. It'll end up being a custom kit though. I will likely want to get a 3071R for the top mount by the time I'm done.

edit: Also while this sounds like a pain in the *** and a lot of problems, this summation is over several years. If you use the AP, have proper tuning and don't dial up the boost to crazy numbers, I think turbo is a smooth ride. I just happened to have a transmission that had issues (I used royal purple GL5), the greddy manifold developed a crack along the way, and the engine had issues once I had the mazsport upgraded coils/mazsport tuning. If I had not gotten the coil upgrade I believe I would still have the 3071R installed and not gotten an engine rebuild.

 

i'm attempting NA to 3071.

 

Well - my install went like clockwork - car ran like a champ . Till i upped the boost then tracked the car and ignored the warning misfires - Yay for me .

Anyway , I have a cracked manifold as well ( about the fourth or fifth i've heard of on here ) so that is an issue .

Also to say you can install a turbo and not have issues is kinda like saying if I go downtown with a loaded gun and start pointing it at everyone I wont have any issues .

Maybe someone onto their 5th or 6th install could do it but most people are going to have one or more issues to deal with - just expect it and deal with whatever comes up .

 

there are different levels of issues.

- You can have issues with the install, missing parts, unable to get it to work, etc.

- You can have issues with tuning, just not running right

- Issues with hardware breaking on you, or stuff falling apart over time. Vacuum line falling off, couplers leaking, etc.

- Vehicle issues from engine damage, or getting worn out.

To me the biggest headache with going FI is worry. Is the engine OK? Am I going to need a rebuild? Is the tuning off? Then again, we're all used to the RX-8 and even NA people have these same fears.

 

Gregs if I read a post right you said your STFT was -12%? That's way low, you need a new MAF calibration. You want your STFT at idle to be as close to 0 as possible.

 

its really weired those are my readings while letting the car idle from cold start, once i start to drive the car it is all over the place it can get as high as +28, i think im going to see my recirculating fitting for my bov on thursday now i have to find a hose that will work with my mazsport cai....would the mazsport cai affect my idle issues at all it has the screen inside....

 

i am using the same tune as before, i havent even done any of the most recent updates either

 

are you sure that is a maf calibration issue ?
Mine settles at -14.8 . I assumed it was to do with the turbo/pipeing upsetting the mixture rather than the maf actually reading wrong

 

The Mazsport Cai was designed for the sole purpose of running the cobb ap and greddy kit...Try to post some pics of your setup, that will help...

 

will do, ill go to the garage in a few minutes

 

your tune was before you had the mazsport intake on right? wouldnt that throw it off?