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> Megasquirt System on Supercharged Type 4, 2.0L with twin plug heads
poorsche914
post Dec 20 2019, 08:59 PM
Post #1


T4 Supercharged
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EDIT Swapped out the engine with my 2056 so I could drive this car. I plan on installing a MegaSquirt system on the supercharged engine.

--------------------------------------------
After failing to get the supercharged T4 engine running properly with the progressive Weber originally installed, I am ready to go the Megasquirt route. In talks with the owner who had this 914 in the early/mid '90s, it has been determined that this setup has never run well. He had a euro auto shop tune it and they got it to run somewhat decent but never reliable. I am hoping a modern FI system will bring this unique build to life!

Below is my MS parts list:
MS Wiring Harness #
Crank Trigger Pkg #
Modified Coolant Temp Sensor #
Relay Board & Cable #
Mini Cam Sync #
MS2 v3.57 *
EV1 Fuel Injectors *
TPS *
IAT *
(8) LS2 Coil Packs w/Brackets ** ebay/amazon
Bosch Lambda Sensor (1 or maybe 4***) ebay/amazon

# from thedubshop.net
* already have from used fuel-only MS system I bought
** I need eight coil packs since I plan to use the twin plug setup
*** I am thinking of going with (4) of the Lambda sensors (one at the end of each tube of the heat exchangers) so that each cylinder can be individually tuned. Is that something MS supports? Is it even necessary? From what I've read, for a stock setup it is not needed but I am thinking with the supercharger it may be useful. (IMG:style_emoticons/default/confused24.gif)

Current SC setup is, from top to bottom: Carb > SC > Plenum > Runners > Heads
The intake runners are modified runners from the single Weber kit - slight bends to fit from heads to center-mounted plenum box.
My idea is to have stock runners similarly modified so that the new setup would be: TB (mounted on custom plate similar to how carb is currently mounted) > SC> Plenum > Runners > Injectors > Heads

I am hoping a tunable fuel injection system is what this engine needs. And, if not successful, I will remove the SC and run the engine as a twin plug.

Anything I am missing? Anything I don't really need?
I am ready to gather together all the parts I need and start putting it together first of the year.
Would like to have it running and tuned to take to Werks Reunion in March (IMG:style_emoticons/default/rolleyes.gif)
EDIT: This particular project postponed til I have more time.

Thanks!
steve
(IMG:style_emoticons/default/driving.gif)
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Posts in this topic
poorsche914   Megasquirt System on Supercharged Type 4   Dec 20 2019, 08:59 PM
falcor75   My thoughts: If you have a fuel only MS, what wil...   Dec 21 2019, 02:02 AM
poorsche914   Thank you, Mats... good questions/suggestions. If ...   Dec 21 2019, 06:17 AM
ClayPerrine   I have a complete functioning waste spark system o...   Dec 21 2019, 07:16 AM
poorsche914   @ClayPerrine Is this an MS system or a stock Pont...   Dec 21 2019, 08:59 AM
ClayPerrine   [b]@[url=http://www.914world.com/bbs2/index.php?s...   Dec 21 2019, 01:37 PM
Mark Henry   How's the engine? Best induction system in the...   Dec 21 2019, 11:41 AM
poorsche914   How's the engine? Best induction system in the...   Dec 21 2019, 12:04 PM
poorsche914   The reason mcmark sticks with the 1.7 is it has sm...   Dec 23 2019, 05:15 PM
get off my lawn   The reason mcmark sticks with the 1.7 is it has s...   Dec 23 2019, 06:22 PM
poorsche914   I ran a 2 liter type at 7 to 9 psi boost reliably ...   Dec 23 2019, 08:04 PM
JamesM   Anything I am missing? Anything I don't reall...   Dec 23 2019, 08:20 PM
poorsche914   Thank you, James, for your expert advice. I will...   Dec 23 2019, 08:51 PM
JamesM   The used system I have includes the MS2 v3.57 an...   Dec 24 2019, 02:33 AM
poorsche914   I would consider starting from scratch with the ha...   Jan 4 2020, 10:10 PM
jc73-914   thx for posting, interesting project, might follow...   Dec 27 2019, 11:39 AM
poorsche914   thx for posting, interesting project, might follow...   Dec 27 2019, 01:10 PM
jc73-914   Great, thx for the info. --j.   Dec 27 2019, 07:17 PM


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