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> Megasquirt Conversion Thread "new Intake"
jabberwocky
post Apr 14 2011, 08:30 AM
Post #1


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From: Cleveland OH
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Just wanted to start tracking my MS conversion on my teener. I had the car running to well last year so I needed a challenge goal is to have everything finished and start tuning by mid may when driving starts getting nice around here.
I also am keeping the sock FI until I get this all running for a quick swap back.
I am really excited about running fuel and spark with the MS extra code.

Just for those that were wondering the stock FI worked OK but it was not exactly optimal for my frakenstien engine i was having surges and the like and could never track down a vacuum leak in my spaghetti of old hoses. Right now I have a 1.7 block 1.8 bus pistons hydrolic cam and lifters. I have a great looking spare 1.7 block and a 2.0 crank so I am looking at building a 2056 or larger down the road depending on funds.

Conversion Planning
Ordered and assembled Megasquirt I with v3.0 board * completed*
Reflashed with megasquirt extra *Completed*
Read and reread MS manual and MS extra manual *completed*
Design and fabrication of new intake and plenum *in progress*
Ordered needed accessories, air sensor, Narrow O2 sensor *completed*
Wide band O2 *desired* (just need to sell some things first)
Wiring Harness *in progress*
MS mounting behind passenger seat
MS working fuel with Craine 700 optical ignition working spark *first test*

Future upgrades
MS Working single coil with locked distributer
Installation of 36-1 on crank to run coil pack

Now some progress

16guage steel construction
6x3x4" box
using the standard GM air temp sensor
Hundai Trottle body and Idle valve

I have about 4 sets of spair 914 fuel injection rails and intate assemblys so I am going to cut one slightly shorter and weld connecting tubes onto the plenum box and have the connecting hoses a little furter from the plenum
The runners are essentially 1" ID pipe so that made them easy to match
Box will have a bracket on the bottom that mounts the same as the OEM plenum.

I went with a new box as I was replacing all of the senors and wanted a clean engine bay. I may also look at forced induction in the future but right now and until im running good I am staying N/A.




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