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> Megasquirt Progress, Main Board complete
yarin
post Jan 28 2006, 01:36 AM
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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)


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yarin
post Feb 1 2006, 07:01 PM
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From: Guttenberg, NJ
Member No.: 693
Region Association: North East States



Do a search for closed loop idle on MSEFI.com forums and a few interesting topics come up.

One guy changed his spark advance table and advaned spark right below his idle level.

See this table:

(IMG:http://www.msefi.com/files/ignition-idle-control_102.gif)
http://www.msefi.com/viewtopic.php?t=15094...ight=idle+speed

Obviously this won't work for warm up enrichment because your fast idle mechanism is going to keep the engine speed far from your low idle spark advance. Question is will the idle bounce off this advance and oscillate back and forth. This is where a table larger than 12x12 would come in handy.

With the FPR issue it sounds like the modified D-jet adjustable regulator is the best bet. I've seen the thread on modifying a stock FPT to reference it to the manifold. I might give that a shot instead of buying one for $60, might as well do it myself. Here is the page.

http://www.dune-buggy.com/turbo/fuelsystem.htm
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Posts in this topic
yarin   Megasquirt Progress   Jan 28 2006, 01:36 AM
yarin   my converted workshop... temporary of course   Jan 28 2006, 01:39 AM
yarin   shot of my soldering skills at the beginning.   Jan 28 2006, 01:40 AM
dinomium   Yes, the injetors are the pretty green ones! B...   Jan 28 2006, 01:41 AM
Tom Perso   Looks familar... http://www....   Jan 28 2006, 06:51 AM
Mueller   I highly recommend testing the injectors "before" ...   Jan 28 2006, 10:08 AM
yarin   I was planning on sending my injectors out to RC E...   Jan 28 2006, 10:27 AM
crash914   Yarin, You will like the version 3 system... I ...   Jan 29 2006, 10:12 AM
Tom Perso   ...   Jan 29 2006, 11:30 AM
yarin   I ordered my stuff from http://www.diyautotune.com...   Jan 29 2006, 02:31 PM
crash914   msII drop in chip is available...you can buy on li...   Jan 30 2006, 06:35 AM
alpha434   Bump. Megasquirt?   Jan 30 2006, 11:21 PM
Mueller   ...   Jan 31 2006, 12:23 AM
alpha434   ok. So... Outside of price. What kicks it's as...   Jan 31 2006, 12:28 AM
Mueller   ...   Jan 31 2006, 12:58 AM
alpha434   Ahhhhhh. I see. So nothing. Hmmmm.... Replace my ...   Jan 31 2006, 01:04 AM
Mueller   ...   Jan 31 2006, 01:13 AM
alpha434   Alright. The next objective for my top secret proj...   Jan 31 2006, 01:19 AM
agrump   Yarin, I have a similar setup to what you are pla...   Jan 31 2006, 07:36 AM
yarin   Hey Dean, Someone on MSEFI forums used a 1.3K pul...   Jan 31 2006, 09:28 PM
DNHunt   One piece of advice. Plan your cable from the ECU ...   Feb 1 2006, 08:21 AM
yarin   Dave, I will be sure to strain relief both sides ...   Feb 1 2006, 08:33 AM
DNHunt   As a guideline I have a 180 degree turn a the rela...   Feb 1 2006, 08:42 AM
bd1308   BNC connectors!!!?!!?!?...   Feb 1 2006, 08:45 AM
yarin   I bought the 12' cable from DIYautotune. The...   Feb 1 2006, 08:48 AM
agrump   Yarin, I am using a pertronix. I did not use the...   Feb 1 2006, 08:55 AM
DNHunt   Also on the injectors and fuel pressure. I believe...   Feb 1 2006, 08:57 AM
bd1308   If i do this on my 1.7, is there someone that coul...   Feb 1 2006, 08:59 AM
sgomes   LEMO http://www.914world.co...   Feb 1 2006, 09:02 AM
yarin   Check these out, FCI D-sub Mixed Power DW series ...   Feb 1 2006, 09:09 AM
DNHunt   Britt There is plenty of support online. Meuller...   Feb 1 2006, 09:13 AM
yarin     Feb 1 2006, 10:56 AM
yarin     Feb 1 2006, 11:02 AM
lapuwali   IMHO, Dave's experience with solder cup DB con...   Feb 1 2006, 12:26 PM
yarin   James, Thanks for you feedback. I will run the in...   Feb 1 2006, 02:51 PM
jhadler   The stock D-jet regulator is pretty good. You say ...   Feb 1 2006, 03:06 PM
yarin   Josh, Yes rising rate. Or in our case when the ma...   Feb 1 2006, 03:22 PM
lapuwali   You can modify the stock D-Jet FPR to reference it...   Feb 1 2006, 03:25 PM
lapuwali     Feb 1 2006, 03:41 PM
DNHunt   I understand the rising rate FPR but, I haven...   Feb 1 2006, 04:48 PM
lapuwali     Feb 1 2006, 05:13 PM
agrump     Feb 1 2006, 06:56 PM
yarin   Do a search for closed loop idle on MSEFI.com foru...   Feb 1 2006, 07:01 PM
lapuwali   Case in point: this guy is devoting a third of his...   Feb 1 2006, 07:09 PM
Jeff Nelson   I think there might be some confusion as to what a...   Feb 1 2006, 07:15 PM
lapuwali     Feb 2 2006, 10:14 AM
yarin     Feb 2 2006, 10:53 AM
Mueller   http://www.914world.com/bbs...   Feb 2 2006, 12:12 PM
lapuwali     Feb 2 2006, 04:24 PM
fiid   <...   Feb 2 2006, 05:05 PM
lapuwali   Even has its own page, now   Feb 2 2006, 05:21 PM
gklinger  
  Feb 2 2006, 05:41 PM
yarin   <...   Feb 2 2006, 06:04 PM
lapuwali   If you're mounting the ECU in the cabin (esp u...   Feb 2 2006, 06:15 PM
yarin   According to MS and other sources a long map tube ...   Feb 2 2006, 06:37 PM
lapuwali   Yes, it's next to where the shift linkage goes...   Feb 2 2006, 06:39 PM


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