Time attack beetle

[Humble]

Good news everyone!

Got the megasquirt 2 ecu swapped in this weekend and she fired right up. Night and day difference. I soldered up the 35 pin AMPseal connector and wired everything to the relay board as a direct plug in swap during a few late nights last week. Yesterday, I took the MS2 and relay board, plugged them in, and I was driving in about 30 minutes. I did have a friend come and rescue me with a jump (too much cranking killed the battery) but other than that she's running pretty well. Still down on power but that's only because she making 5psi (wastegate is turned way down). The ECU is set to max out at 20psi and I can probably go to 25+ psi. I took Lucy on her maiden voyage last night up the mountain to get back home.

-She really wants to go fast, faster, faster still, that's all you got?!...
-BOV is really quiet at low boost
-Tranny is really loud under decel, I'm going to check the fluid level to make sure it's not low
-She corners on rails, pick a line and she'll do it no matter how bad it is
-I'm going to need ear plugs for extended trips, my ears were ringing for an hour after I got home.
-I really need to calibrate the speedo, I'm pretty sure I wasn't doing 160 on the way home last night...

Logs, pictures, videos and the like will be posted as soon as they're uploaded

[Wally]

Thats VERY good news!
Now get the relay to the wastegate working so you can get a decent amount of boost

[NO_H2O]

Glad all went well with the swap. It took me a while to get the fuel map sorted out on ours but it did fire right up with the default settings. A few hours on the dyno with the LM1 took care of that. Still have work to do with the ignition side of things. We are running a very conservative ignition map now. All we need is some time.

[Humble]

I have had the MS2 up and working on my desk with a stim board for months. That and a lot of educated guess work got me off to a head start when I dropped it into the car. Ignition wise I stuck with the HEI unit that the CB fuel injection came with and I modified the relay board to make it work. Using the additional outputs I reconfigured Fidle to be off during cranking and on when the motor is spinning above 400rpm, which feeds a 5v signal to the HEI module to allow timing control. A pretty slick and easy setup if I do say so myself. No fuss with timing wheels either.

I've already gone through my timing map to pull timing based on map (1-1.5 degrees pulled for every 1psi) which is conservative for now and I'll add the timing back in once the water injection is enabled (it's unplugged right now for base tuning). For now I may just run a manual boost controller to turn up the wick and keep an eye on the logs for boost spikes.

With a few extended low boost runs on the freeway at 3.5-4k head temps stayed at 300-325* and my oil temp never climbed above 100* (even after a 2000 ft. climb). The oil cooler fan kicked on so I know the oil coming out of the motor is over 190, and the tank is hot to the touch but won't burn you. So the dry sump system is doing great so far and that's a big weight off my mind.

[NO_H2O]

Once you get it sorted out, you can use the MS2 to control boost too. You can also use a pair of electic S/O valves and a switch, split the boost sense line to both the MS2 ECU and the manual boost controler, set one for 5 lbs and and the other for 15 lbs (ie. STUN and KILL settings).

[chug_A_bug]

[QUOTE= set one for 5 lbs and and the other for 15 lbs (ie. STUN and KILL settings). [/QUOTE]

hehehe I like your thinking

[Humble]

I have a handful of pwm valves from a twin turbo subaru that I could use to control boost, but since she is a race car first it's 20-25psi all the time I've been going through the extra code for the MS2 and some of that is tempting as well. I've also thought about adding 2 more inputs to the MS2 for logging purposes, fuel pressure and MPH (i already have an elec. speedo). I got the new helper springs on her last night so she looks less like a rally car and more like a road racer.

I also discovered last night that the breather line for the 3/4 valve cover came off and everything on that side is lightly lubricated. It was a pain getting the hose back on with the oil cooler in place but it should stay put now.

[DORIGTT]

Originally Posted by NO_H2O

Once you get it sorted out, you can use the MS2 to control boost too. You can also use a pair of electic S/O valves and a switch, split the boost sense line to both the MS2 ECU and the manual boost controler, set one for 5 lbs and and the other for 15 lbs (ie. STUN and KILL settings).

S/O valves?