Crane HI-6 Install
 

OK, For those of you who have hooked up one of these.

Need some help here. I have a Crane Cams HI-6 installed on my primary coil. The engine just seems a bit rough and I'm wondering if I have a certain wire connected wrong.

I only suspect the cyl select wire (small blue wire) as a possible problem. The manual says to hook it up to the small red wire that connects to the OEM Coil+ wire (The Coil- is used for trigger off the igniter), but that is for a 4cyl setting.

Now, my question is that I have seen 2 installs on the net. One says not to hook it up to anything, and the other one says to hook up to the red wire.

I am confused..... What way is the right way? It is working, but it is having a small "miss" to it, and I want to make sure I have it hooked up correctly. It could be wrong.

So, what should the cylinder select wire (small blue wire) be hooked up to? The small red wire, or nothing at all???? Help Please! Thanks for any replies,
Greg

here

https://www.rx7club.com/forum/attach...&postid=481951

Thanks, but.....
 

That is the one that I used for the install since I bought the unit used. I saw another install off of FC3S.org that said to NOT hook up the thin blue wire to the thin red +Coil wire.

WHICH INSTALL IS CORRECT???:confused:

More replies please!!

I bought the one from fcs.org, and hooked it up just like fcs did, and it worked fine, the first try. CJ

i was browsing though sport compac car and a 3rd gen rx7 had msd box hooked up to the leading and crane hi6 koohed up to the trailing.. is this a good setup?

See other thread for more details - if you're running a HI-6 on the leadings, you should be toggling the unit to run in "4-cylinder" mode, unless you turn off the multi-spark feature.


-Ted

Hey RETed
 

What wire is for turning off the multispark under 3k rpms? Could this help or not?

You were with K2RD formerly right? I think I used your drawing for the install. I am not running the rpm limiter at this time either.

Thanks for the info.....gimmie some more.

Anyone have any experience with the HKS twin power on the 2nd gen. Someone told me they don't make one for the 2nd gen how about buying the one for the 3rd gen and wiring it up?

Later,
Dave

no matter how many different ways i wired up my crane hi-6R it would idle weird and run generally shitty, with no seen improvement..

go figure.. i sold it.

scott

Well........
 

I may just have to back track and start undoing some mods until I locate the trouble. I am going to start with this HI-6 unit. It may not be the problem, but I will eliminate it from the equation if I have to. I would rather keep it because I can tell the difference in starting and fuel mileage while cruising. I just need smooth spark all the way up.

I am going to get another set of wires too, even though my Magnacore are almost new and they read good on my Multimeter........

We shall see. Anyone else got some input to this? It seems that the thin blue wire is supposed to be hooked up to the thin red wire to emulate a 4 cyl.

The FC3S.org "How to" says to not hook it up at all which would be the setting for a V-8 :confused:

Anymore of you that have this on your FC or FD of any year? Please comment!

ya fc3s.org says not to. I've run it both ways and it didn't seem to make any difference. ted says 4cyl and I'll trust him :) my page says to connect it to red. after doing this the led didn't flash durring idle. but like I said I couldn't tell any difference between the 2 while driving.

I do see the trigger pulses
 

I do see the trigger pulses on the red light on the HI-6. The on-line manual says they should be smooth, but you can see the very fast flashing. Just like watching a timing light.

Anyway, there is also no alarm on the unit. I do take RETed's word for it and that is why I have it setup like I do. It must be something else that is wrong.

I wish I had more time to troubleshoot, but thanks everyone for the input.

Re: Hey RETed
 

The wire doesn't toggle the multi-spark, or at least for the older units.&nbsp The thumbwheel numbers do.&nbsp Do you still have that feature?&nbsp Either 00 or 01 turns off the multi-spark...


Yes, used to connected with K2RD, but not anymore.&nbsp I'm start my own shop, as show in my .sig... :)



-Ted

Re: Re: Hey RETed
 

me speak english good :D

I dont know about the crane unit, but with MSD shit if you dont have a perfect ground you will get a slight miss at all rpms. Check your ground and make sure its as good as it can be.

Good idea!
 

Duh! I have not tried to put the ground in a different place yet. I will try that asap.

RETed, thanks for the input, I DO have the wheel numbers for rev limit and the selector. I will check the manual for the setting. Thanks

If you select 4 cylinder, you will get multiple sparks for approx. 22 degrees of eccentric shaft rotation. If you select 8 cylinder, you will get multiple sparks for approx. 45 degrees of eccentric shaft rotation. My Hi-6's fire for 22 degrees of rotation, and work just fine. I notice no increase in performance for 45 degrees of rotation, but, since you are sparking almost twice as much, you will eat plugs almost twice as fast without the wire connected! Blue wire to 12V imho.

Irv, Keith's dad :cool:

Thanks Keiths Dad
 

Irv, you are very knowledgeable. Thanks for the explanation. I don't believe the spark is my problem at this point. I hate when I know I have everything hooked up right, and I have checked EVERY single sensor, hose, gasket, etc.....and still have a problem.

Kinda aggravating! I will find the problem and fix it......I always do. I just wanted to make sure I wasn't missing something simple. I don't have near as much time to do stuff as when I was younger and single and no kids, no wife, no house, not 2 other cars....................you get the idea :)

Lately, I have enjoyed posting on the forum again. Seems to have toned down a bit and there are many knowledgeable people such as yourself on here. I hope to contribute half as much through my experience with rotaries.

Thanks a lot everyone!

I ran mine in the Project 86 for some time with it connected just as you read with no problems what so ever. Now pp13bnos owns it and he installed it just the same with no problems. When I first installed it, I got wisdom from Dale Clark and Ted on it since I didn't have the slightest clue as to the wiring of something like that made for a pisston car in a rotary :D Worked like a charm though.

What symptoms is your car having? it is easy to unplug the HI-6 to eliminate it as a problem.

The new version of the HI-6 still has a blue wire for the cylinder select, I mentioned brown, but the brown wire is for the retard function.

I wish
 

I wish that I had the retard feature right now. It would be very usefull. I need to retard the timing just a few more degrees at high boost. The stock ECU ain't doing enough......:(

Oh well.