I installed my Crane Cams HI-6 this weekend, and it has a built in rev limiter. So after installing everything, I decided to put the rev limiter on 4000 rpms just to test it out. Well I start up the car and it revs right past 4k! So I check all of the connections and everything checks out. I have the newer version of the HI-6 and it has one yellow wire that needs a switched 12volt lead to turn on the rev limiter. If you do not want to use the limiter, you just don't hook up this wire. Well I hooked up this yellow wire to the same switched lead that turns my e-fan on, and it works perfectly; so that's not the problem. Does anyone know if the HI-6's rev limiter even works on our cars? It says that odd firing ignitions will not be able to use the limiter, but I have seen posts where people have recommended the HI-6 because of this feature; which would be preaty stupid if it didn't work. I'm assuming a rev limiter would hold the revs right at, or around, the rev limit set by me? The main reason I want the rev limiter is for those odd occations where you need to let someone else drive your car. I could just set the limit at 3k and let them putt around the parking lot all they want.

The ignition over-all is a good deal. The throtle response is improved; the start-up is alot quicker and smoother; and gas milage is slightly better. I really couldn't feel a power gain, but smoother operation makes driving more rewarding.

 

You'll need to take care of the trailing ignition channels if you want the rev limiter to work.&nbsp Else, it doesn't do anything but kill the leadings spark plugs; this is real world experience that the engine will run with just trailings.&nbsp The only "easy" way I've seen this done is with another rev switch and a relay to kill the trailings.

You need to set the HI-6 to run in "4-cylinder" mode, so the +12VDC must be connected.




-Ted

 

What? You lost me there. How exactly do I set the HI-6 to run in 4-cylinder mode? Right now I have:

-Power and ground
-Four main wires running to the coil (forget the colors)
-That one yellow wire running to a switched lead

That's it

There were more wires left over then I thought there would be. Either they added a few wires that nobody mentions or I didn't hook up all of them. The car runs great though; better then ever. I read on the fc3s.org "how to" that these are the only wires needed. But the wiring diagram that I "believe" you posted says to hook up one of the other wires to the coil, with the red wire. I can set the rev limiter dials to turn off the rev limiter and some other functions as well.

 

I've never seen the newer units, but the older ones used to have a thin blue wire that was the cylinder select signal (ground, not connected, +12VDC).&nbsp Does your HI-6 have such a wire?



-Ted

 

I have a cylinder select wire; although I don't think it is blue. I believe it is brown. Does this wire need juice? What effect would this wire have if hooked up? What effect does it have if not hooked up? It's kinda strange that the write up on fc3s.org has no mention of this wire; but in the mods sections where the lil wiring diagram is, the wire is said to hook up to the red wire on the coil.

 

I'm thinking I need to hook up my cylinder select wire to a switched 12v lead.

 

I have a brown wire instead of a "thin blue"

 

There are two things that get adjusted with the cylinder select wire...

1) Rev limiter - this doesn't really apply since it won't work properly.
2) How many times the CDI box fires under 3kRPM - this doesn't matter if you turn this feature off with the RPM set numbers (00 or 01).&nbsp If the multispark hasn't been disabled, the duration gets all messed up!&nbsp You won't feel it at low RPM, but at high RPM's it can cause missing!



-Ted

 

I would like to keep the multispark feature, so; should I just connect the cylinder select wire to a switched 12v lead? OR somewhere else?