skidude

iTrader: (3)

I added my boost gauge and AFR gauge. Took me a while to track down power for the light in the boost gauge that would dim with the rest of the dash, but I got it off the hazard light button when I realized it lit up (the button in my '94 never lit up so I never realized this one did). The USB port in the middle is attached to the megasquirt so I can hook to it without crawling under the dash or keeping a coiled up cable under a seat or something.

skidude

iTrader: (3)

Yes, typo on the firmware version, it's 1.0.1.

So I don't have VICS, and VTCS is for warmup, so what makes my car shoot forward around 5500rpm?

I'm excited for the megasquirt treat! It's just what I need for a Friday night.

Gryff

iTrader: (6)

^ I'm digging the built in port for MS, any assembly pics?

skidude

iTrader: (3)

Nope, completely forgot to get any pics before I installed it. I'd probably use a different port next time, since I'm not a huge fan of the shiny chrome on this one, or the fact that it sticks out so far. I'd also try to find something that would fit through a round hole since cutting the rectangular one was a PITA.

y8s

iTrader: (8)

VTCS would do that "nothingnothingnothingZOOM" if it were set to a value where you're building boost. like 5500.

I have mine set up on xpander board pin 20 (inj H) and it activates when clt is < 60 AND rpm is < 1800.

skidude

iTrader: (3)

Those are the settings I have on that output, so I still wonder why I get the zoom. It could be something as simple as my tune needing more work, but it's so consistant and predictable that I doubt that.

skidude

iTrader: (3)

Ever since I replaced my stock injectors with some 570cc bosch ones I got from the classifieds here, the car hasn't run consistently. Now, I have no reason not to trust the seller, but I also have no proof that these were actually 570cc injectors, since they were used (cleaned and flow tested, they came in little sealed bags with new stuff)

This is my general settings page and my current fuel table. Do they look reasonable to you guys? Keep in mind the fuel table isn't tuned very well, but my AFRs are pretty near where they should be (today, anyway. They'll be way off tomorrow I'm sure)

y8s

iTrader: (8)

70s is high for idle cells. how'd you calculate your required fuel?

remember that 570 cc is at 43.5 psi. your fuel pressure is probably closer to 55-60. for the req fuel calculation, you should use 670.

you definitely need to smooth out some of that fuel map though. differences of 30% between adjacent cells is going to cause weirdness.

skidude

iTrader: (3)

I just calculated it by clicking the button and putting 570 in for the injector size.

I know the tune needs some work, I'll get there. I just need to get the idle and stuff worked out first.

flounder

A little brake clean sprayed on a rag will get rid of that grease asap.

btw, did you spray paint the front of your IC black?

skidude

iTrader: (3)

Yes.

skidude

iTrader: (3)

My Megasquirt should be coming back to me on Monday (Thanks again y8s!!) and I will commence massive tunings.

How many pounds of boost should I run? I would like 240whp (give or take) so the car remains reliable, but I don't know what boost will give me that with this setup. I just really don't want to blow my **** up just yet.

Braineack

iTrader: (62)

I was there to witness the resurrection of your MS....

and about boost level: all of it.

skidude

iTrader: (3)

And thank you as well, Brain. Was the resurrection dramatic, and involving lightning? I pictured you two in bloody white lab coats and goggles standing over a slab table with a soldering iron and multimeter.

About the all of it, how do I know when I'm using all of it? Just turn it up until I break something, then back off a quarter turn?

Braineack

iTrader: (62)

I was actually in my jammies, and it was very undramatic. but y8s did cheer when it finally synced and lit up.


and lol at all of it comment. its like finding MBT.



nice USB port, I did something simliar, but put it in my center console.

skidude

iTrader: (3)

Thanks, I probably should have put it in the center console, but I had nothing else to put in that spot.

TurboTim

iTrader: (9)

9-10psi should be about 240rwhp dynojet.

skidude

iTrader: (3)

Dynojet, eh? That brings up a good question... if stuff starts breaking around 250whp, is that 250whp on a dynojet, or on a dyno-dynamics? I hear those are two very different power levels.

Either way, I am thinking I will street tune for 10psi and then get it dyno tuned as soon as I get everything ironed out.

skidude

iTrader: (3)

I just got back from a little tuning with my awesome home-made electronic det cans, and it's amazing how you can actually hear detonation so clearly!

So anyway, I want to figure out what happens at around 5000rpm at WOT. Above there, the car runs a lot better and has quite a bit more power, and I'm stumped as to what would cause it. Please help!

I attached a log of a 1-3 pull and my current msq. Any help is appreciated, with this 5000rpm thing or anything else!

skidude

iTrader: (3)

Did I actually stump miataturbo, or is nobody paying attention to my boring build thread anymore? The part where I don't have much power below 5k rpm is kind of annoying at autocross.