Bitz - MS1 Extra - EDIS question

[wreckah]

very true, heavy beer time now

[mytoy]

Glad you found the problem. Good luck tuning to your satisfaction.

[jpnovak]

Great. Have fun tuning...

[wreckah]

just did a 1,5 hour autotune run, it runs so much more stable than before. You can feel that the ignition is now solid. Big difference. Power feels great, but haven't really poked very hard. WOT from 2k - 4k rpm feels great, i've been to 5500 a couple of times, not at WOT, sounds and feels good, but i'm going to leave to high rpm/highload tuning to the professional.

still have one issue: lost sync a couple of times during cold start / warmup. First it would not start (2 explosions and stall), then after a couple of tries, I could get it to go at 3k rpm with the hand throttle, but when i back down gently, all of a sudden it loses sync and stalls. It happened around 10 times, and then never again. Drove it for 1,5 hours without the slightest hiccup. MS gives no reason for syncloss...reason = 0.

Let's see tomorrow with a new coldstart.

[wreckah]

must have switched cause and effect. Maybe first start yesterday way too lean, that was why it was not catching, and stalling, and causing sync loss.

with a better tuned VE table now, and WUE configured as before with the bitz kit, i had a perfect cold start (0°C here), first keyturn, no sync loss whatsoever, and a perfectly running engine immediately.

time to book an appointment at the dynocentre

[wreckah]

i mean, gotta testdrive, right?

[wreckah]

https://www.youtube.com/watch?v=t0I43D7kQyQ

[wreckah]

just triplechecking the valve lash right now with the Kirk tool...all are mm-perfect.

don't think the kirk tool is all that handy though, i mean, good way to set valves very specifically, but you still have the problem of adjusting-screw rotating while locking the locknut, and also, the kirk tool doesn't really grab tight onto the rocker arm...you have to keep it into position with your hands, or it falls off. not 100% fan here.

[wreckah]

did a 1.5 hour autotune run today...the car officially never drove better than this.

it sounds incredible and it feels so much more smooth than with the worn out stock ignition parts. It fires super stable...

i am confident now that the engine runs more than good enough to use it daily again until the dynocentre has time for me.

[wreckah]

tuned WOT and cruise at the dynocentre this morning,

top-end same as before (from 185 to 187),
but torque all across the range went up quite a bit with the ability to tune the ignition now. +10Nm at multiple points in the range.
most importantly: she runs well, sounds sweet and healthy, and hasn't skipped a beat.

[MadeofOak]

Congrats!! Must be nice to have a perfect running 911

Does anyone make a Plug and Play Microsquirt version? Our cars are getting old would love to have a simple solution to CIS I see the 3.2 guys get VEMS

[wreckah]

Plug and play is a bit far fetched, but it's not really too difficult once you educate yourself a little bit.

- get some fuel rails (e.g. bitz), fuel lines, fuel pressure regulator
- get a microsquirt + EDIS + some crown vic spark wires + map sensor (trigger-wheels, ebay)
- get a toothed pulley, vr sensor and distributor blank (goingsuperfast.com e.g.)
- get a AEM wideband kit

install everything in a day or 3, junk heaps and heaps of old crap in the process. (CISlambda!)

buy tunerstudio and log software, and go, run autotune, and go to dyno to smooth everything out.

the fuel pump reverse logic is super easy to get over, with a 10€ standard relay, should not hold you back at all once you do all the other stuff.

[wreckah]

and with EFI, it's never plug and play, you really have to get it tuned. But TBH, it's really cheap compared to the full investment you have to do. And a no-brainer, especially because we are running 20.000€ engines if anything goes wrong...there is no way i would do WOT at 6500RPM with just auto tune.

[scottrx7tt]

Originally Posted by wreckah

and with EFI, it's never plug and play, you really have to get it tuned. But TBH, it's really cheap compared to the full investment you have to do. And a no-brainer, especially because we are running 20.000€ engines if anything goes wrong...there is no way i would do WOT at 6500RPM with just auto tune.

Just start rich, then slowly lean it out manually or let auto tune do it

[MadeofOak]

Originally Posted by wreckah

Plug and play is a bit far fetched, but it's not really too difficult once you educate yourself a little bit.

- get some fuel rails (e.g. bitz), fuel lines, fuel pressure regulator
- get a microsquirt + EDIS + some crown vic spark wires + map sensor (trigger-wheels, ebay)
- get a toothed pulley, vr sensor and distributor blank (goingsuperfast.com e.g.)
- get a AEM wideband kit

install everything in a day or 3, junk heaps and heaps of old crap in the process. (CISlambda!)

buy tunerstudio and log software, and go, run autotune, and go to dyno to smooth everything out.

the fuel pump reverse logic is super easy to get over, with a 10€ standard relay, should not hold you back at all once you do all the other stuff.

And doing it DIY you learn what's going on. A Bitz kit with Microsquirt would be a cool wishlist /dreams