Comitatus

iTrader: (7)

Going to be installing my E8 soon in my FC, and want to get a few things straight beforehand.

Previous E6X was setup for the ignition to use the toggle feature, so I assume that was for a Rotary Distributor type.

I want to setup the E8 for sequential injection in either Direct Fire or Waste Spark. Any suggestions as to which?

Will this impact the tune that I had on the car before that was tuned under the distributor setup?

I noticed that with the Sequential setups, the IGN flying lead wires are wired up differently from the Distributor type.

Can anyone give some input on how to wire this up to stock coils?

Claudio RX-7

iTrader: (1)

The problem with the stock trailing coils is the stock igniter, its built to work with that toggle select feature, theres no working around it, so you'd still need to maintain the same configuration in order to use them. What i would suggest you do is go with a set of 4xLS1 coils with which you will be able to run direct fire ignition and have very good spark all around. They're good, cheap and work well with the Haltech.

The other option would be to use some kind of igniter that would replace your stock trailing igniter, something like a dual channel bosch or Haltech module, but dont know what the results would be from having 2 different igniters firing your coils, perhaps spark output and charge time would be different with them, or maybe you could use 2 leading coil igniters one for each trailing coilpack.

Its up to you to decide what you wanna do. Id go with the LS1 coils, simple and easy, and they have their own built in igniter, and haltech sells them for 65 bucks.

Comitatus

iTrader: (7)

Will LS1 coils handle 550+whp?

What advantages does the sequential injection have over the standard distributor type?
I'm assuming everyone that is using stock coils runs the distributor type if they are running a haltech?

That kinda sucks the the stock coils limit you from running sequential.

Claudio RX-7

iTrader: (1)

I think the word "distributor" has you confused, the setting is only used when you are enabling the "toggle mode" option, you arent really running a distributor, its just Haltech jargen. Also, stock FC coils run in a Wasted spark manner, just like the FD RX-7s, but with only 2 signals from the stock ECU, in the FD its 3 signals, one for each set of coils. And the fuel is operated in a "stagged" manner, which means that the 2 primary injectors are firing all the time and the 2 secondaries come on after a certain load point (i honestly dont know if the E8 fires them according to a sequential firing order, like P1 then P2, in the S/K/X ECUs they fired together.

With the LS1 coils you will still be firing the 2 primaries together, but you are driving them from independent drivers, thus charge time is maximized. (or i may be wrong again, and they alternate between firing events.

But, the factory FC coils, when they are in good condition, they perform pretty damn well, and Matt (the HITman) himself has told me personally that at some point he's been able to get over 550hp from them. But the LS1 coils are also capable of that. So even if you still use FC coils in the way they were intended to work they will still perform pretty good.

Comitatus

iTrader: (7)

Yes, I think I'm becoming confused. I realize that the "toggle mode" represents running a distributor.

The whole reason I asked this in the first place, if you look on Page 144 of the Haltech E8 manual, it has a chart listed of the 3 ways to wire up the ignition on a rotary. (I would post it up, but the file is too large for this forum)

I mainly wanted to know if it was possible to wire up Sequential Ignition (Direct Fire), using 4 channels to the stock FC coils?
Or if I must have 4 seperate coils/ignitors to be able to run the Direct Fire.

I'm assuming since the Stock coils run in Wasted Spark, that I can wire them up for Sequential Ignition (Waste Spark) according to that chart.

I know on my E6X, it was wired in for the Distributor mode, as the toggle was being used on the trailings.

Claudio RX-7

iTrader: (1)

Understand this, you CANNOT run sequential with the stock coils/igniters period. You can only run wasted spark configured the way they were supposed to from the factory.

You can run sequential with the E8 with no problems, the manual clearly shows how to connect them.

Comitatus

iTrader: (7)

Understood. Thanks for helping clear things up Claudio.

Claudio RX-7

iTrader: (1)

I hope i didnt offend with that last comment, i just thought you were going around in circles trying to think of a way to run sequentially with the stock coils. I can tell you this, i have used the LS1 coils on a 13B and can tell you the results are fantastic, small package, built in igniter, all you do is connect them and go. They really are the cheapest alternative right now.

Comitatus

iTrader: (7)

No offense taken. I just don't think I was asking my question in a clear enough fashion.

But I completely understand now. Yes, I'm probably going the individual coil route with my setup.

How are LS1 coils wired up? I understand the IGN output wires running them from the Haltech, but how do they get their power, ground, etc...?

C. Ludwig

iTrader: (27)

This comes up about 2-3 times a year. We need this stickied.

Comitatus

iTrader: (7)

Right on, Chris. Thanks!

BTW...I'm probably going to go with those coils you emailed me about. I've been reading over on the EFI101 forums, and have read many good things about them.

Claudio RX-7

iTrader: (1)

This thread should also clear things up.

https://www.rx7club.com/forum/showth...ight=LS1+coils