I'll never tell, at least not on the internetz.

Now I'm pissed.

The guys that I tuned with had a DD and didn't know the first thing about getting it to hold a steady RPM. the guy had some little knob he kept fucking with while I tried to franticaly tune.

Cory really knew what he was doing with the DD, not to mention he knows how to tune a car. Between him and Tim (BEGI) I was in good hands. I need to get that camcorder video posted. You can really hear how well the dyno holds RPM when he goes WOT on the throttle and the turbo spools.

ZX so are you Adaptronic fluent now?... seeing as i have a 99 now =D

You wont blow it up if you launch correctly. What kills most drivelines is when you get wheel hop. Its that rapid cycling between massive load and then spinning that kills it. Its like comparing a big weight on a nail versus a hammer hitting it. A big weight wont nesseasrily drive it in. A hammer will. If you feel juddering, push the clutch back in and try again next run.

With that turbo, you could probably launch starting at about 3K on your first run. Let the clutch out fairly quickly without dumping it, while putting the throttle down at about the same speed or a bit faster. You will probably hit something on the order of a 2.6 on the first run, and it will feel/be slow. Then dial up the RPM from there in about 400RPM increments, same basic technique. It wont kill it, and you will get a feel for how to ratio the clutch out to throttle in to avoid a bog or zooming right ot redline. It becomes intuitive after a half-dozen runs. Perhaps the runway will be a good place to do some practice? ;)

If you over-stage and have to back up, back all the way out and then go back in so that the driveline is loaded up properly.

It doesnt take a hard punishing launch to get a 2.0, it's just tricky, especially in a Miata. But even on the slow runs take a look at your trap. You will probably be in the 108-110 range, which is enough to hit 12s.

You HAVE to run it down the track! If you run those Nittos you will cut at least a 2.0 60', probably better. You will no doubt be in the 12's. I'm sure you've plugged your numbers into an ET calculator.......

Would you hand your keys to someone sitting in stands surrounded by empty 16oz'ers? Last time a friend offered up his IS-F but I couldn't grab the keys with a beer in one hand and a corndog in the other.

Congrats on the kickass setup!

If my brother can run a 12.4@118 on a FWD turbo BP mx-3 with a glass transmission and open diff, I think you can hit low 12's too.

ZX-Tex

From another boosted Miata looking to go to the track in San Antonio I'm in curious to see what the larger turbo and 22psi will do at the track. Would be nice to check out ur setup.

GETTING into 12's? You guys are fucking joking right?
He should be WELL into 12's if he can drive even remotely worth a shit.

Put your pursue down ya little Sally! :giggle:

I used to start at 4500 holding, flat foot it till 6500, and ride the clutch out while easing back off the throttle according to tire spin. Felt like high 1.8 to low 1.9's, but no official times (except a decent amount of track time in the past to compare it with).

I probably made 150+ launches that way with the 4 cylinder with the 5 speed and the weak little 7 inch torsen in this 2500 pound pig without a hiccup. Launching seemed to be fine, but I was 3 to 4 powershifts away from a box of neutrals.

The OP is hoping for it. We're just reassuring him that we know it can. ;)

Congrats! What's next?

The guys at York Automotive have a DD and know how to use it. When you were tuning cruise is seemed like he was hold cells pretty good, but I wasn't paying attention when you start doing boost as like you said, seemed like you were just doing pulls.

Dyno day in fall!

I'm hoping to strap in again next weekend at the MegasSquirt MegaMeet

strap-on, megasquirt, megameat...fag.

loud and proud.

at the rate your car is going, you should start pushing if you want to make it by fall

Good question. AIR CONDITIONING! It is getting too hot down here to DD without it. I had to remove the condenser when I was installing the v-mount system, and the stock one will not fit anymore. So I found some Ebay custom double pass units, just need to buy one, mount it, add a dryer, and get some custom lines made. Everything else is already there.

After that, I had this idea about constant torque boost tuning, that is ramp boost up at higher RPMs to hold the torque line flatter above say 5000 rpm. The Adaptronic has closed-loop boost control as a function of RPM so the capability is there. The idea is hold the torque load constant for the drive train and produce/transmit more horsepower with RPM. I definitely have the overhead to do this with the turbo and the injectors. But I have not played with closed loop boost control in the Adaptronic yet so do not hold your breath. It is just a down-the-road idea right now. Yes I know a custom intake would help flatten the torque out as well.



Thanks for the drag racing encouragement. Don't worry, DVCN is working me on the local end to do a manly run at the drag strip, so it could happen. I know he will not drive it himself, he hates driving other people's cars in fear he will blow something up. He knows what he is doing though, his Chinacharger NA has run some impressive times.

Expect to be stalked.