Rodimus_Prime

iTrader: (3)

I visited this topic about 2 years ago and didn't really find an answer. I know that the ecotec race engines use the Digital 7 with the MSD8498 distributor, the blaster coil.

What I'm trying to find is some type of diagram that shows how to hook this thing up to get it running on a stock ecu LSJ. I know its possible, it can be done on the L61 I had it on my cavalier.

Anyone have any contacts with any of the racing teams that run ecotecs that might be able to shed some light on this. Before you say the stock ignition is fine, your wrong while it may be "good enough" it certainly doesn't deliver the spark an MSD does, my cav was like night and day with that thing on, so so smooth with an MSD on. I'm seeking to have that kinda system on my LSJ.

Build book lists the following parts
Drag Race
msd 75314 digital 7 box
msd 8261 pro power hvc 2 coil
msd 8498 ecotec distributor
msd 32769 spark plug wires

Endurance under 40psi Booneville
Msd 7531 digital 7
msd 8251 pro power hvc coil
msd 8498 ecotec distributor
msd 32769 spark plug wires

DIS system (up to 600hp on gasoline)
MSD62153 DIS 4 box
msd 8207 blaster SS coils OR
Honda CBR 1000 coil on plug coils

Maxim_X

I may be wrong, but, I thought I remember a coil on plug system available for the lsj.

Rodimus_Prime

iTrader: (3)

well the stock is coil on plug, its just replacing that with an aftermarket box and coils and how to thats the trick

ptrblkz24

I dont think ill ever go back to msd.I had the dis II on my z24.Burnt out on me in the middle of the winter.Only 2 cylinders were firing.I had to put the bypass plug in it so i could drive the car.Same **** happened to my friend too.Msd is garbage in my oppinion.

Rodimus_Prime

iTrader: (3)

i never had an issue on mine, usually the folks that do is a result of wiring

ptrblkz24

If that was the case,the car would still run like **** with the bypass plug in.All the power connections were done at the battery.I dont know,i just dont trust msd.Maybe there other ignition boxes are good though.

Area47

be a baller.

M&W ignition box.

the stock lsj system can sustain 500+whp

Sharkey

iTrader: (1)

the dis boxes are hit and miss, the other stuff is solid. however, if your building a street car, id venture away from a digital 7, thats a race box, way overkill on a street car, and likely wont last. something like a 6al or the new digital 6a is plenty for a street car.

bikeboyben14

if buying a box get the 6al2 i like it the best. its relaiable cheap and comes iwth a built in 2 step

Rodimus_Prime

iTrader: (3)

Dis 4 is the reccomended one

Sharkey

iTrader: (1)

if your going COP, you have to run a dis box, no way around it. if your running the ecotec distributor, then the dis box wont work. the dis2 seems to have an especially poor track recored, i know 5 people that had failures within about 6 months, 1 person has 3 boxes fail. the dis 4 seems to do a little better though.

Rodimus_Prime

iTrader: (3)

Anyone have Any Gm race team connects?

Area47

one question.

why are you so dead set on doing this?

the gm drag cars that do this have an aem or FAST set up on them with a throttle cable. they use the dizzy for a cam trigger

Maxim_X

One reason I was looking into this is because I hate gaping the plugs so small. I wish I could keep them bigger with a better ignition.

Rodimus_Prime

iTrader: (3)

because ive driven cars with and without them and the difference is quite a bit, I also dont buy into the whole stock is good enough either

Area47

mine are gapped at .032 on 24psi of intake pressure

qwikredline

Listen to the man. No need to replace something that doesnt need replacing. Koni road race Cobalts never had a failure 05-09 average 24 hours of racing a season or more... unless you like spending money for less

Area47

you have to find a happy medium between over kill and under kill.

Rodimus_Prime

iTrader: (3)

Koni challenge cobalts also make 100hp less than what I am

BLAZIN07SS

iTrader: (7)

i hope you have more hp than whats in your sig.

Rodimus_Prime

iTrader: (3)

oh yes, the redyno hasnt happened yet

qwikredline

meh.

Area47

im pushing more power, and rev higher and have zero problems from 0-8k rpms. other people with more power than me are running stock ignition systems and have zero problems. i personally don't understand the obsession with it

::shrugs::

Rodimus_Prime

iTrader: (3)

just because there isnt something breaking doesnt mean it cannot be improved

Rodimus_Prime

iTrader: (3)

as stated in other threads people are having alot of issues with spark blowout at high psi levels and gapping plugs sub .030 is much less effective than simply fixing the root cause which is weak spark

we need to get this figured out

so someone must know how to get ahold of one of the gm race teams to try to get this figured out i know they use it