eCtune

Sorry, but my son finally got tired of working on the tune, so he's just having fun driving the car. At 262hp, it has plenty of power for the street. I'm just waiting for him to get bored so he'll come home so we can work on it again. That's the trouble with grown children. They leave home and you n...

Yes, but it's an instant ticket here in the People Republic of California if the cops see you have adjustable cams, so we need a spare cam cover we can cut or a cut cam cover. We only need it for the tuning, and then we have to cover it up again. And it's his car, so I figure he can do his part for ...

We're still looking for a cut cam cover. And my son has run off with the car and is daily driving it. I have his beater 88 DX with an LS swap sitting in my driveway. But at least my Cobra is back in the garage and I can get twice the gas mileage with regular gas by leaving it there when I run errand...

That was our plan eventually, but it's a bit of a PITA with a stock valve cover. So we're looking for a cut valve cover we can use for tuining. Thanks for the advice on where to go with the cam timing. We were kind of shooting in the dark when it came to figuring out what we should try first.

I'm pretty sure we'd have had better numbers if we'd gone with higher compression pistons. I don't mind bending the rules on smog tests a bit, but I wanted to ensure we didn't have any NOx emissions like we did with the last NA motor my son and I built. It had high compression, but we could not get ...

The S-tube is ported to 68mm, so the lip is only 1mm on each side.

Interesting video. I am surprised that the 3D plug could get a spark across the entire ring while it was working. That is really hard to do. The electrons and holes collect at the sharp points and jump where the atmosphere has the lowest resistance, usiually the shortest gap, but local temperature v...

Thanks for the suggestions. FYI, our IATs were 110. Not too bad. We're running an 03 Cobra pump and heat exchanger. We do have a slight kink in the intercooler line that we still need to fix. It may make it run even a bit cooler, but probably not too much. FYI, we gapped our copper plugs at 0.032\"....

I am digging for the pictures, but can't find them. I'll email my son to see if he has any. I have always run copper plugs on the blown Mustangs I have worked on, including my own KB Cobra. Copper is strongly recommended for FI engines across the Mustang community. I'll have to give the fine wire ir...

Thanks for the input. I went digging through eCtune forum archives looking for other RPM graphs, and I found a few. They all have the noisy RPM plots, so that seems normal. I wonder why the RPM logs are so noisy. Does the PCM think the RPMs are actually that jittery? Or is that an artifact of Calvin...

I was just studying my datalog for that last run on the blown car, and the eCtune log of the RPM is showing the same noise that the dyno curves are showing. It is interesting to note that the jitter in the RPM log is as much as 300 RPM over a 30mS period. What causes so much noise on the RPM plot? I...

Thanks for the TB recommendation. We have had good luck with Skunk2 products in the past. We have the BAR sticker, but the CARB legal stuff kind of went out the window with the LHT headers. :) We can swap back to stock exhaust manifold, stock TB, stock air pipe & air box for the smog test every two ...

We looked at the plugs, even under a magnifying glass and saw no evidence of detonation. We ordered and received a Honda igniter and coil and dropped it into the distributor. It seems it cleaned up the dyno noise a bit, but it is still there. I dropped the spark back to 18* and richened the AFR to a...

We're a lot happier with the knock sensor off, but I still don't like the noise in the curves, and we were expecting to hit around 280 and hoping for closer to 300hp with our setup. Since the noisy curves make us suspect ignition problems, we're going to replace the coil and igniter in the aftermark...

We turned off the knock sensor and got a few dyno runs in this afternoon. We had to spend a lot of time screwing around swapping belts because we destroyed the blower belt. But finally, we were able to do a little tuning. We were running with some pretty aggressive AFRs and timing, but didn't have a...