2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

CDI, Jacobs box, maybe make my own?

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Old 02-09-16 | 01:15 AM
  #26  
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Could be briefly amusing.
Old 02-09-16 | 08:54 AM
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Originally Posted by clokker
And what are we hoping/expecting to see?
A red MSD box installed in my engine compartment today.
Old 02-09-16 | 10:35 AM
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don't forget the alternator belt while you are there..lol!
Old 02-09-16 | 11:07 AM
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LOL! I know, haha
Old 02-09-16 | 11:54 AM
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Well, about to leave and go pick up the box! I had it delivered at my parents house because where I live it would have been stolen before the box had a chance of hitting the ground.

So going to go pick it up and then go to work and install this baby! Many pics and video to be had later!
Old 02-09-16 | 03:44 PM
  #31  
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Holy **** what a difference!!!

Throttle response is vastly improved, definitely WAY more power than before. It's such an improvement, it actually exceeded what I was expecting.

All I got to say is HOLY ***** that was worth the $300. Install pics to come...
Old 02-09-16 | 06:03 PM
  #32  
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Originally Posted by jjwalker
That was my first choice, it's unavailable, so I ordered this...
They should really update their site.
Old 02-09-16 | 06:54 PM
  #33  
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Installation pics, isn't it so pretty!
Attached Thumbnails CDI, Jacobs box, maybe make my own?-20160209_121837%5B1%5D.jpg   CDI, Jacobs box, maybe make my own?-20160209_135747%5B2%5D.jpg   CDI, Jacobs box, maybe make my own?-20160209_135756%5B1%5D.jpg  
Old 02-09-16 | 10:56 PM
  #34  
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Seriously styx and clokker, yall need to do this.

Very noticeable increase in power, throttle response is spot on. I went and drove around today again and was just a gasp. Best $300 I have ever spent on the car (besides the street port). As far as bolt on, 15 minutes of wiring and go drive, thats as easy as it gets.

I still cant believe what a difference that made. The butt dyno says 30hp, Damn I wish a Dyno was cheap! Maybe I can talk Chris at RP into a dyno run, he is a scientific guy.
Old 02-09-16 | 11:37 PM
  #35  
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Originally Posted by jjwalker
Seriously styx and clokker, yall need to do this.
You have my undivided attention.
Just getting my "new" engine ready to install will take all available funds for the next few months and I'm loathe to splurge too heavily on an untried shortblock, but if all goes well for both of us, we can revisit this in June or so.

Rather than hard-to-quantify butt dyno data, I'd personally be more interested to see if fuel consumption changes and if emissions are improved...both results I'd expect from a more efficient ignition.
Old 02-09-16 | 11:38 PM
  #36  
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djsl needs one for his itbs.
Old 02-09-16 | 11:45 PM
  #37  
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but wait theres more....https://www.rx7club.com/2nd-generati...6a-etc-762225/

sorry im going HKS.
Old 02-10-16 | 08:35 AM
  #38  
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did you read this?

The HKS Twin Power is a "twin strike" ignition system.
It senses an ignition event, and it fires it's own ignition trigger shortly after.
This is why there is only one splice into each coil - one leading and two trailings.
The other two wires are just power and ground for the unit.
Yes, this is how HKS claims you will never experience ignition failure if the Twin Power dies - the system just reverts to how your stock ignition used to work.
Versus almost any other CDI box installed, if the CDI box fails, the whole circuit is interrupted, and you'll KNOW something is wrong.

FD guys claim the Twin Power is the ****.
I personally have a problem with such a small unit providing enough ignition power to handle such responsibilities.
If this unit is so great, why does some of the best CDI ignition systems (i.e. MoTeC / Autronic) still install in series?
Also, MoTeC and Autronic CDI boxex are HUGE compared to the HKS Twin Power.
I really don't have the time nor the money to experiment with the Twin Power, but anyone with an oscope can get all the data.
Old 02-10-16 | 09:07 AM
  #39  
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Originally Posted by clokker
You have my undivided attention.
Just getting my "new" engine ready to install will take all available funds for the next few months and I'm loathe to splurge too heavily on an untried shortblock, but if all goes well for both of us, we can revisit this in June or so.

Rather than hard-to-quantify butt dyno data, I'd personally be more interested to see if fuel consumption changes and if emissions are improved...both results I'd expect from a more efficient ignition.
I have a 22 mile commute daily and average 12 miles per gallon during the week. Yes, it sounds aweful, but the engine is cold for part of that commute. On a LONG highway trip I'll average 22mpg.

Give me a week or two and I can give you some mileage data. First week might be skewed by lead foot.
Old 02-15-16 | 09:16 PM
  #40  
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So this week, I burned exactly 9 gallons of gas again. Same back and forth to work but with a little more lead in the foot, plus I had to make a 50 mile trip for work so I actually drove more miles with the same fuel consumption. I also drove the car harder as well.
Old 02-16-16 | 09:12 AM
  #41  
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Originally Posted by jjwalker
Seriously styx and clokker, yall need to do this.
I have done it..(often..lol...!)

My "new setup" won't really require it..ahem..it has 8 plugs.
Old 02-16-16 | 04:37 PM
  #42  
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Originally Posted by misterstyx69
I have done it..(often..lol...!)

My "new setup" won't really require it..ahem..it has 8 plugs.
Why in the hell would you do that!

I'd go 3 rotor before I did that, although I have contemplated the same thing.

They do make coil on plug CDI modules...just saying.
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