Sundance 6g72 "3.0 turbo build thread"(N/A DYNO SHEET pics inside)

[Sundance 6g72]

-2hg happens from idle to redline when WOT

i need to find a better spot to T the boost gauge in.


megasquirt came today and we are starting the wireing now
intercooler, bov, etc also arrived today

[Force Fed Mopar]

Sounds normal to me. After all, if there's no vacuum, what's gonna pull the air in?

[Sundance 6g72]

So i have my MS tune all figured out and set up. Just need to actually get megasquirt into the car...

if someone could explain how im supposed to wire in my 84 omni voltage regulator, that would be appreciated

[Force Fed Mopar]

It just wires to the field terminals on the alternator.

[87turbodance]

There is a green and blue wire that come from the alternator. The regulator has a green and blue wire. Connect the colours together. Make sure that the blue wires are also connected to switched 12v (should already be done stock)

[Sundance 6g72]

i have it figured out

THANKS

[Sundance 6g72]

my intercooler is HUGE but it will fit.

ill have a picture in a second

[bond_bbs]

I was actually amazed at how much space there really is between the bumper / grill and the rad support. I thought my intercooler wasn't going to fit either until I mocked it in..

More pics though!

[Sundance 6g72]

im leaving now to wire up megasquirt. wish me luck

[RoadWarrior222]

im leaving now to wire up megasquirt. wish me luck

Good luck, we'll see you next spring ...




j/k

[Irocelectric93]

looking forward to updates. Good luck brah.

[Sundance 6g72]

well MS is in but cant get it to start

it connects to the laptop and everything but when i crank it over nothing happens. im pretty sure the engine is flooding because when i switch to stock ecu it has a hard time starting but once it does start it bogs for a second then its back to normal and runs good.

ill go into detail later on how i have a hotswappable ecu setup (i can swap between MS and sbec by unplugging a few things)

i didnt check for spark but i will tomorrow if i have time.. if im not getting spark that should be an easy fix (power wire for dizzy, MS dizzy timing wrong???)

drove home fine on stock ecu.. so everything works as long as its set up right

[Ondonti]

From the sounds of how you have it wired, its probably insufficient signal from the Distributor. I would just disconnect the injector wires until you get spark, which will show that MS is actually functioning.
My original install just needed to swap out a few sensor connectors to run the oem ecu.

[Irocelectric93]

Will the car actually turn over but not start and run? If this is the case its most likely a timing issue assuming you are getting power to your coil/injectors/spark plugs. Did you set your dizzy trigger the way Ryan explains in his guide? I didn't really have to for mine....but i did follow the steps. Clearly the car is still in time so maybe try messing with the dizzy trigger angle. Start at 65 and work your way up and down. Most of the time 65 is where people seem to find the sweet spot but for me its a little higher. Ryan will chime in im sure. You are getting feedback from all your other sensors correct?

[Sundance 6g72]

my dizzy trigger is deff way off cuz i put it at 12 HAHAHAHA i thought that was base timing or something.. it was late at night

i have not checked for spark, for all i know im getting spark.

the thought that woke me up this morning was that i didnt hook up the fuel pump wire correctly.. so im going to go check on that and see if my dream was actually right. LOL

---------- Post added at 11:33 AM ---------- Previous post was at 11:24 AM ----------

and yes, car turns over like a champ. MS says the injectors fire when i turn over and everything looks like it should. im going to make sure the fuel pump wire is correct and also play with the trigger angle.

but yeah, remember i can drive on the stock ecu with no issues.. so everything physically works how it should as far as i know.

[Sundance 6g72]

deff not getting spark. i pulled the coil ignition wire (the one that goes to the dizzy) and tested it for power.

i used my craftsmen power checker thing... where you put one end on ground and the other on power. if power comes through the lightbulb turns on. The light never turned on. so im getting now power to the coil is seems to be?

MS says my dizzy goes to 10degrees when i crank. the trigger offset is at 65, i tried playing with it but set it back to 65 because im sure it has nothing to do with coil power??

[Sundance 6g72]

this confuses me


Setting up the distributor trigger

In Tuner Studio you should setup the idle LED to indicate IRQ. This will make it so that he middle LED will light up whenever the MS tach input is on.
You need to set the dizzy up so that the middle led turns on at whatever trigger angle you choose. If you setup the tach input on MS the way that DiyAutotune says to do it, then the trigger will stay on (middle LED stay on) for 55 degrees for rising edge or 65 degrees for falling edge trigger.
I believe falling edge trigger is the best to use. But you might need to do some trial and error.

So you need to:

Rising edge trigger:

1) Set the crank shaft to 10 degrees BTDC on cylinder #1
2) Turn the dizzy backwards until the middle LED turns on (backwards from the #1 spark terminal in the dizzy cap)
3) Turn the dizzy very slowly forward until the led just turns off and then lock down the dizzy with the bolt.
3) Set the trigger angle in MS to 65

Falling edge:

1) Set the crank shaft to 10 degrees BTDC on cylinder #1
2) Turn the dizzy backwards until the middle LED turns off (backwards from the #1 spark terminal in the dizzy cap)
3) Turn the dizzy very slowly forward until the led just turns off and then lock down the dizzy with the bolt.
3) Set the trigger angle in MS to 75


4) Set the "Cranking timing" to trigger return
5) Set the cranking advance angle to 10 in MS
6) Set a "fixed angle" of 10
7)Verify that at 10 degrees BTDC the rotor is just about to leave the #1 terminal in the cap and at 60 BTDC degrees the rotor is just arriving at the #1 terminal in the cap
8) Get the car to start
9) Verify that you have a 10 BTDC with a timing light with the engine running. Adjust the dizzy to achieve 10 degrees if needed
9) Set the fixed angle back to -10

[c2xejk]

-2hg happens from idle to redline when WOT

i need to find a better spot to T the boost gauge in.

I have mine hooked to a vacuum distribution block installed on the TB side of the plenum

2"-Hg from idle to redline sounds odd. Once the MS is running you can log MAP on a run and see what that tells you.

megasquirt came today and we are starting the wireing now
intercooler, bov, etc also arrived today

Good to hear about the progress.

Ed Kelly - www.kmperformance.com

[Sundance 6g72]

deff not getting spark. i pulled the coil ignition wire (the one that goes to the dizzy) and tested it for power.

i used my craftsmen power checker thing... where you put one end on ground and the other on power. if power comes through the lightbulb turns on. The light never turned on. so im getting now power to the coil is seems to be?

MS says my dizzy goes to 10degrees when i crank. the trigger offset is at 65, i tried playing with it but set it back to 65 because im sure it has nothing to do with coil power??

i get power to the test light when i have it on the positive coil wire.

but when i put the test light on the coil to dizzy ignition wire, i get no power.

the coil works fine when im on the other ecu.

[Sundance 6g72]

with the stock ecu installed, the car runs fine and starts on a dime

we pulled the same coil to dizzy wire and put the test light on it and it DIDNT LIGHT UP.. yet the car runs on stock ecu.

so its safe to assume the coil is sending power to the dizzy.

we pulled a spark plug (with MS connected) and cranked and spark does not bounce from the plug to the metal we had it next to.

so it makes me want to think that sense i didnt set my trigger angle right that im not getting spark to the plugs.

i dont have LEDs so its hard to understand what the guide is saying.