Marcusb79

Whats up all. I had my girl friend place an order while I was leaving for work for my ignition system. To make a long story short I ended up with the wrong one. I'd just like to know if I can you a HI-6S in place of the HI-6. Otherwise its gonna be shipped back first thing tomorrow morning UPS 2nd Day.





Thanks all

scathcart

No

E6KT2

What's the difference?

scathcart

I can't remember, but I asked it a while ago on the yahoo list and I was told no. (by RETed I think, but not positive on that one. He had a reason though, I am just to dumb to remember). It doesn't do the same thing, I think, and you may have to use the LX-92 coil with it.

Marcusb79

Thanx scathcart, I will return it to summit and get the correct one. I will make sure I get the correct fireball unit this time.....

pp13bnos

iTrader: (1)

I just installed a Hi-6 on my n/a. To be honest, i can't realy tell a difference in anything. I usually get around 25mpg, and i'm going to see if it goes up. CJ

scathcart

Sorry I can't give you a reason why, just what I have heard from the big boys. Don't know how the HI-6s works, anyone got a write up? You could figure it out pretty easy from there. And pp13bnos, I noticed a extra 30-50 kms to a tank when I installed mine on my 1990 TII. Power band went much smoother in the upper rpm's with it, too.
Sean

ReZ311

iTrader: (4)

YEAH! I want to know what the MPG is.

divide trip mileage by gallons used.
make sure you do it on a full tank to empty to get accurate measure. =)

RETed

Here's the difference...

The HI-6S is a non-CDI box.&nbsp It's basically a voltage stepper which ensures the coil gets a certain amount of voltage, but this voltage level is DEPENDENT on the level of the input signal.&nbsp So it's an input level multiplier.

The HI-6 is a CDI (Capacitive Discharge Ignition) box.&nbsp A capacitive discharge system fires very consistent (albeit very short) signals/sparks.&nbsp This is very desirable for very high RPM use.&nbsp The HI-6 will trigger a consistent output signal/spark as long as the input meets the trigger threshold.&nbsp All this means is that as long as the signal meet the minimum voltage level, it'll spit out a very hot spark.

Now, as a side note, the BEST spark and engine wants to see (especially a rotary engine) is a medium length spark.&nbsp This is not what a CDI box would typically give you.&nbsp What the CDI box does at low RPM (when a longer spark is desirable) it fires multiple sparks.&nbsp At higher RPM's (both the HI-6 and MSD's switch over to a single spark at 3,000RPM), the CDI box switches from a multi-spark discharge to a single spark discharge.&nbsp In fact, MSD = Multiple Spark Discharge!



-Ted

ReZ311

iTrader: (4)

wow. impressive explanation.

So... all in all, MSD HI-6 is good for our rotories. turbo and non-turbo. =)

scathcart

I knew you would save my ignorant looking ***. Thanx.
So there you go... no on the HI-6s
Sean Cathcart

scathcart

I used to get between 12/14 mpg (us gallons) with city driving, now I get 14-16 mpg on the same driving style.
Not great gas mileage, but it earns its worth in under a year.
Sean

RETed

I recommend them for both non-turbo and turbo rotaries.
It's actually Crane Cams that makes the HI-6.
MSD's comparable model is the 6A.




-Ted