RETed

I was talking about MSD claiming the DIS-4 cannot fire a 13B cause it cannot handle the high RPM's!
I wasn't implying you were wrong!

In fact, we've got a DIS-4 firing 3 channels going into our 20B.
It runs up to 8kRPM, when it does work occasionally. :P
So it really has nothing to do with the 13B revving to high...

You can be like that other guy who just wired a single DIS-4 to his trailings for just two channels.
So why not a DIS-2?
Cause the DIS-4 has more capacitors and would fire hotter and more consistent according to the MSD techs...
Oh gawd!


-Ted

crispeed

The DIS-4 needs a minimun of 30 deg between events to charge the capacitor hence why you can't run it on both the leading and trailing at the same time.
Unless you want to run over 30 deg of split!
In full sequential/direct fire, two dis-2's should do the trick on a 13B though.
Enough of these DIS4's. My eyes are still bugging from setting all the dials yesterday on a supra that's running twin DIS4-s and 6 coils.

Claudio RX-7

iTrader: (1)

Im going to do something drastic. Isnt this post about the economics of ignition boxes? so, seeing that the price of a DIS-2 and DIS-4 is close to 300 for the 2 and over 350 for the 4, nobody has mentioned the price of the Force, also there's the AEM unit which has a decent price but plagued with reliability issues, people also talk about the Twin Power by HKS, but i aint never seen one up close or know what its capabilities are, or price, or channels.

So, lets offer some insight onto this dilema. If money was a problem, and you wanted/needed spark, what would you get? and if money wasnt an object, what would you get? So, on with the Poll.

johnrxt2

the link to forceignition that cris provided sells that box for 220. It seems like it is very similar to the msd 6a or 6al. cris what is the diff. I know u said u prefer it over the msd. Do u run force ignition on your T2?

crispeed

The Force got the two step feature built in already. No need to add on a two step box like you would with a MSD. Give Force a call for the exact details.

johnrxt2

i see that is a nice feature huh

crispeed

You cant realy do a comparison. Every manufacturer have something to offer that the other don't have. If it's a single channel economy box then the Force RL-2 and MSD 6AL would be almost on the same level athough the Force unit offers more for the same price.
For multi channel use there are MSD, AEM,M&W and Motec.
The M&W units seems to be the prefered IGN amp outside the US. It's funny you even mentioned AEM since they claimed to be the first to use a twin capacitor discharge system although M&W have been doing it for over 3 yrs now with very good success even on rotaries running seperate lead and trail ignition events. The AEM units already proved to be a disaster on rotary or any combination that required a twin capacitor design to function properly. MSD DIS can't do wasted spark or run both L & T on a 2-rotor application but is fine on a sequential 2 and 3-rotor application as long as you use seperate boxes for both L & T. I have no experiences with Motec but I think based on their reputation they should offer a very good product. They do offer multi channel products but I don't know if one box can handle the entire igniton on a 2-rotor application running seperate L & T ign events.
If it was up to me the M&W would be first choice since they offfer and cater to the rotary needs. They should start promoting their products here since most of them are better suited to the modern ignition systems seen today on every automobile.

johnrxt2

so if i ever wanted to go to a two step , i would need three of the RL2 boxes? I will be ordering mine this week

crispeed

Basicaly yes although I know a trick where you can use only one on the leading and have the two step feature.

johnrxt2

interesting!

LUPE

Chris, I've been trying to figure out a way to get a 2step feature without buying three 6al's and 3 two step box's like you told me a few months back.

You say that with the Force RL-2 box, I would only need one box on the leading to get it to work? Would a RPM selector be needed or do you use a pill?

If I would only need one box then I will sell my 6AL and buy the force.

Let me know, I wanna put my bitch on the bumper

crispeed

Chris, I've been trying to figure out a way to get a 2step feature without buying three 6al's and 3 two step box's like you told me a few months back.

You say that with the Force RL-2 box, I would only need one box on the leading to get it to work? Would a RPM selector be needed or do you use a pill?

You can use either. It's the same plug. The selector is a better choice in that you don't have carry around a bunch of pills.

If I would only need one box then I will sell my 6AL and buy the force.\

You don't have to although the RL-2 got the two step built in.
To make it work on one box is easy. You just use a relay to shut down the trailing when the two step is activated.

Let me know, I wanna put my bitch on the bumper

You ain't got the ***** to put it on the back bumper.

LUPE

So, with my current 6AL, I can just use a relay to shut down my trailing when it's activated. What type of relay would you recommend? Any certain way to hook it up? If not, I'm sure I can manage

You're right..... I'm scared of the wheelie poppin.

LUPE

Okay, I can figure out the 5 pin relay to completely shut down my trailing. Which pill (Rpm) should I start out with on the two step? Is that based on where I reach full boost?

Thanks man!

crispeed

Start out with 7K rpm. I used 9 to 9.5k on my setup.

LUPE

Okay, I'll put the 7K rpm pill in the low side of the two step. What size pill should I use for the high side of the two step?

9.5 ? DAMN!!!

Node

iTrader: (1)

crispeed, im assuming your two step trick works for putting a revlimiter on fc ignition too.....good idea. still a little confused on how to hook up but ill just have to take a good look at a FSM or something.

LUPE

I just want to know which pills to use. I know I need to use a 7K pill on the low side but not sure which pill to use on the high side.

I'll sit and wait for crispeed to answer

pluto

You'll need two relays on the 3rd gen since it has two signal wires for the trailing. basically what you do is to setup the relay to normally closed. when you hit the two step switch, it'll activate the relay into open so that the signal doesn't get into the coil. You can get away in a 2nd gen with one relay because it only use 1 signal wire and 1 toggle. 3rd gen will need two relays for sure. Is it right crispeed?

johnrxt2

if i install the rl2 do i need to change the ignition set up on the haltech?

Roy Johnson Jr

Excuse me, is this seat taken?

LUPE

I just want to know which pills to use. I know I need to use a 7K pill on the low side but not sure which pill to use on the high side.

I'll sit and wait for crispeed to answer

crispeed

You still sitting!

LUPE

Not anymore, thanks!!