Megasquirt Progress, Main Board complete Options

[yarin]

Tonight I have completed building the main board for my MS II V.3.0 system. Thanks to those that have helped out. Once i'm all finished I will definitely post a complete "How To MegaSquirt a 914" website with pics and step by step. So far i'm still at the desk level. I've got 2.0 injection parts on the way.

I'll be using the following:

stock injectors
GM air temp sensor
stock fuel pump
summit racing manifold referenced fuel pressure regulator
stock injectors (i think 2.0s are on the way)
stock plenum / runners
stock CHT
MS Relay Board
Innovative WB02
High Current ignition driver
Stock dizzy with pertronix (hall sensor)
Stock Bosch Blue Coil
PWM Low impedence injector driver (no resistors)
Stock Cold start Valve (plan so far)
Stock throttle body with some junkyard TPS

Here is a pic of my board, took me a few hours a night every night this week. I took my time, double checked everything. So far so good!

I don't expect to have the system in the car for at least another month. I'm converting from carbs so I want to install steel fuel lines and clean some stuff up.

I'll be sure to post progress in the forums. (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif)

[yarin]

QUOTE (bd1308 @ Feb 2 2006, 08:12 AM)

what solder do you all use? i have like ten kinds and each time I find something else...... b

I used 60/40, i looked into silver solder 63/37 but that actualyl has a slightly lower flow point.

Check temp ratings here: http://www.alchemycastings.com/lead-produc...ucts/solder.htm

Sn 60 (60/40) melts at 362F and flows at 375F.

The higher the Pb content the more difficult it is to solder and the hotter the gun you need. I used oversee technicians soldering with SN 10, SN 5... much more difficult to work with than good old radio shack 60/40.

Try to use the smallest diameter you can find, it makes things easier. Always clean the tip and make sure to scrub all the flux off the board with 99% isopropynol, i used a firm toothbrush.

I couldn't imagine buildnig a MS system without a relay board. Unless you fab your own interconnect box connecting and troubleshooting your inputs/outputs becomes much more difficult. The relay box lays everything out for you and includes... well duh.. relays and fuses (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif)

I bought my single ended relay cable from DIYautotune, however I going to crimp my DB-37 connector instead of using their solder cup type. I already have the female connector and plugs. The other end was already crimped to 12 feet of wire with a nice hefty amp connector.

Where did you guys put your fuel pressure gauge? I've seen an inline adapter, but i'm not crazy about adding two more fuel line clamps.