Is 13:1 too lean for 133kpa. Should I trust my LC-1 gauge, or the analog output to tunerstudio.

 

I wouldn't run 13:1 on pump gas on a track, no. If they are reading different, you have a wiring problem. That said the gauge is the correct one. You're an EE, right?

 

Eh. More of a CE. I have a tinyiox so I can use the digital output to the megasquirt, just haven't wired it all up yet.

 

Well the wideband's reading is the correct reading, as it's reading is relative to the wideband's ground ( I am assuming the gauge/wideband controller ground is the same). And the ECU is grounded somewhere else on a different reference plane, that or your settings in Tunerstudio are just wrong.

If you make the ground planes the same, and your TS settings are right, the gauges will read the same. My wideband is 0.0-0.1 AFR the same at the MS vs the LC-2.

 

How did you manage that with the LC-2? Mine has a common ground for the power and signal, and the square wave on the sensor heater power introduces considerable noise.

I addressed it by putting in Rev's CAN bus converter box, now my ECU is *more* accurate than the LC-2's analog gauge.

--Ian

 

Easy, just put them on the same ground plane, and that ground plane is the engine block. Correct grounding makes everything read correct, without noise on the sensor readings.

 

Not on mine. Hooked up like that in analog mode, data logs would show the WB signal with half a point of noise in it. The oscilloscope made it obvious that the problem was the square wave noise from the heater. With the digital signal it's much less noisy.

--Ian

 

Wilco has dirt cheap grade 8 hardware

$3.99 a pound, and they round down. I paid $4 for all of this.



Checked out some chicks while we were there.



Awesome pawn shop find on the way home. $40



Last week Daisy got anxious when we were gone and chewed a hole through the wall.




So we picked up some molding to fix it up.




Mounted my trailer hitch with 1/2" hardware instead of M8





This dog is a pain in the ***

 

That last angle, she almost looks like pure pit.

 

She has jussttt enough mutt in her that we never actually tell people what she really is

Not pit though. Close.

 

stafordshire terrier, fukin whatever

 

she needs to meet Bear
he will show her the ways of my people

 

So far she loves other big dogs. She likes to box them, and out her paws on their shoulders. Little dogs seem to annoy her and she stays away from them. She is terrified of new dogs. No bad signs of aggression yet, just some snarling if they invade her personal space too quickly.

 

I was afraid Bear was going to eat my car when you said you were going to park it in the back yard

I mean seriously, do you ride that thing? What's his 60' time?

 

he's very traction limited actually, needs slicks like your car

 

My JRT/Pit mix doesn't chew things but damn if he doesn't whine if he's not with his folks. He also hates my motorcycle, wants to kill it when it's running.

 

She is just all about pushing boundaries lately. She used to be a great shop dog, wouldn't wander, would just hang out around the garage. Today she makes it 3 houses down and across our busy street. ****** a. Time to get some sort of tether for her.

 

Wow, this thread used to be so much better. Now its old and quiet.

I'm really just enjoying the car right now. Its awesome on the track, and pretty damn reliable so far (as long as I stay on the road).

One big change I made was switching to the correct deadtimes...holy ****, night and day difference. Idle is almost perfect (even with the twin disc). Low load cells took a lot of tuning, high load cells stayed almost the same.

I'm running pretty rich currently. In the mid 10's. Mostly because I have about a 1.0 difference in AFR from gauge to MS. So once I get the tinyIOx in I will retune back into the 11's range. 10's don't hurt, maybe a bit less power but that doesnt matter much to me.

Next plan is to install all my fuel stuff, and get a mid (6-8psi) boost tune that I can play with at the track. Will be weird to actually have some power.

Aero plans are still forming, but I keep having other things to do. Need to finish up my GPS units that I should have built ages ago for all you people before I do any of this work though.

 

This is what happens when your **** isn't broken all the time and the car runs straight.

No go **** it up and install that BP6D

 

Send me rods, pistons, oil pump. Thats all thats holding me back

Too many other things to spend money on. Bought a mountain bike for Hailey, got her dirtbike running. (Kawi KX80, mother of god that thing is insane) which means I need to get a dirtbike for myself...

And then she keeps hinting at some ring or something. Going to have to blow way too much $$ on that.

I'm not really sick of working on the miata, just want to do other projects too. Electric golf cart needs to happen.