93rotorhead

Is there anyone that can shed some light on this subject. I need to know what wires i need to hook up from the harness to the coils.

Thanks

GUITARJUNKIE28

here ya go

careful with the coil charge time. i roasted a set of leading coils when i was running them in wastespark mode.

RENESIS TII

so..... would it look like this?

ign#1 ----- leading#1
ign#2 ----- leading#2
ign#3 ----- trailing#1
ign#4 ----- trailing#2

93rotorhead

thanks Im going to try to get a print out of the ls1 coil and go from there

Claudio RX-7

iTrader: (1)

What did you have it set at when they roasted?

93rotorhead

Im trying to install them now . Is there anything I need to be aware of?

93rotorhead

Im having trouble with what wire goes were . I have the plugs for the ls1 coils but all 3 are white

GUITARJUNKIE28

well, i was following the advice of someone and not paying attention. i had the charge time up at 5.5 ms.

@ 7k rpm, we've got a max of ~8.57 ms to work with. but oh yea, the leading was firing in waste spark mode, so cut that in half to ~4.29 and i was running the coils 100%.

i've still got the charge time @ 5.5ms now, but they're firing sequentially, giving me a max duty cycle of 64% @ 7k rpm.

GUITARJUNKIE28

^ oh yea... this makes me wish the haltech had a charge time vs. rpm map. if you turn off the idle control and play with the coil charge time, you can get the idle way more efficient with a really high charge time.

i was playing around and cranked it up to 6.5 ms at idle once and got it to idle smoothly with the afr's in the low 14's.

RENESIS TII

here you go...... agian

GUITARJUNKIE28

teh pimp

Claudio RX-7

iTrader: (1)

What systems do you know of that control coil duty vs. RPM?

GUITARJUNKIE28

none that i know of. why do you ask?

Claudio RX-7

iTrader: (1)

Guess its something very hard to do, programming wise i take it, thats why i mention it.

GUITARJUNKIE28

programming as far as the software programmer, or the end user "tuner"?

pluto

I believed motec, AEM, hydra, and PFC has coil charge time vs. rpm map.

pluto

Since you guys were talking about the LS1 coils, I had to use pull up resistor on the signal in order for it to work properly. anybody has the same issue or is it just me with the E11? From what I have tested, the signal wire doesn't produce a voltage but rather a Gnd, open signal. So I put a 100 ohm resistor in place to bring the signal to 12V to charge the coil.

GUITARJUNKIE28

the coils should get ignition power, and the computer controls the ground.

GUITARJUNKIE28

if i only had $4k for a motec... me wants, but me is poor.

pluto

Right, so in order to make it work, you'll need pull up resistor for it..... At least that's how I had it setup on my 3 rotor.

GUITARJUNKIE28

i didn't use a resistor.

maybe that might have contributed to me frying the first set? the second set hasn't had any problems, and the original (ls1) trailing coils are still operational.

you have anything i can read about that?

pluto

Well, I spend at least two weeks to get my 3 rotor to fire about 1.5 yrs ago and it turns out that the ls1 coil requires a positive signal to fire them. Knowing that the haltech transmit a ground signal, I had to place a pull resistor to the signal wire so that it'll provide the positive signal that the coil wants. I may have to check my wiring again to be sure, but I know I did use pull resistor. maybe I somehow wired them wrong initially and that's why I had to use pull up resistor to make it work. I wish I have time to rebuild my 3 rotor so that I can get it running again.

GUITARJUNKIE28

that's weird. that diagram i posted earlier shows it getting ignition power.

i've never tried it before, but i wonder if the coil doesn't care. give it constant power and control the ground, or give it constant ground and control the power?

i'm curious, just not curious enough to try it.

pluto

No, I don't think so. From what I understand (eventhough I couldn't find any internal circuitry of the ignitor in the coil). The power and gnd is what enables the ignitor. You also have a circuit gnd which is the gnd of the transistor (ignitor). And then the signal requires a 12V switch. I thought about it for awhile before I decided to use pull up resistor to make it work. If I use a switching gnd (tied the gnd to the signal and have a constant 12V, the timing will shift as the rpm goes up. Done that already too.

enzo250

Pinouts on a Ls1 coil are as follows:
(this is looking at it so the connector is on top)

12v EST Gnd Gnd

Est is the signal from the ecu.


I don't have much experience with E11's so i can't help.
I don't see why you would need a pullup resistor though?

BTW.... dwell time should be mapped with battery voltage not rpm.

Maybe i should've looked at the first page as the wiring diagram is clearly posted.
HELLO...