should i go for MSD or 2nd gen direct fire mod?
 

as title
it's for my gsl-se
anyone had experience both?
any input will be welcome

OMFGBLACKBABYJESUS@ABBQ!!!!!





















MSD FO SHIZZLE, garunteed hella more spark!!!! just run a single box on the leading side thru the distributor.

i personally think that the second gen coil is about the same as having an msd but like 400X cheaper.

MSD I have it and my idle is smooth and free reving but ive never tried 2nd gen coils.

I've had both setups in my -SE.

I wasn't too impressed with the MSD. It didn't feel any more powerful, and it was expensive... And took up a LOT of space.

The 2nd gen upgrade was cheap, easy and took up little space. I also felt it ran smother and stronger with the 2nd gen upgrade.
Plus there's the new 2nd gen ignitor trick too:
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/clunk-when-comming-stop-58983/#post482508
It'll make it even BETTER!

2GCDFIS with tranisistor trick is far better than an MSD.

Is that your final name for it Jeff20B?

2nd Generation Coil Direct-Fire Ignition System...?

I love your names for your ignitions...:D

And the average total investment is only around 50 bucks! Hella cheap compared to MSD option. This is one mod I'll give "three thumbs up". :bigthumb:

Yes, it is my final name for it. :D

I had a long post explaining all the reasons but I'm sure it would bore everybody so I'll just give the basic reasoning. Most of us were already familier with classic 2GCDFIS, and the ATF/MMO treatment/trick. I put them together and viola! 2GCDFIS with transitor trick. :D (I didn't want to force everybody to memorise yet another acronym, nor did I want TT on the end of it because most people think of twin turbos when they see TT).

Then again, 2GCDFISw/TT doesn't look all that bad. It's just the addition of w/ for 'with' and TT for 'transistor trick'. Meh, most folks may not know what you're talking about. Besides, the transistor trick concept is still pretty young. Let's give it a while to let it sink into the general consciousness of the forum before we use this acronym. :)

Lol! Alright... but at least I'm up to speed now!

How about NPKAASG (Nuclear Physicist's Kick Ass Atomic Spark Generator)? :)

thx for the input guys
i thing i am going to go for 2nd gen upgrade

should i go for the s4 or s5?
or they are the same?

As far as I know, the coil with ignitor assembly stayed the same all through the 2nd gen production run.

Why choose one when you can have both? Fire off a second gen coil direct fire style with an msd.

-Marques

can you give more detail?

Hey Ray,

if you are ever in the south bay, i can give you a ride in a 2nd w/ tt car, i don't know much about the msd though, so i don't know how they compare

oh nice i would love to do that

I liked MSD and went with it...I'm very pleased with the end results. Smoother rev all the way to the red line and just looks sweet. I had to go with what the track guys use.

whats the performance difference between the original DLIDFIS and the 2nd gen ignitor one?

Buy the MSD.

The reason you go direct fire with two coils when you get an MSD is so you don't burn out distributor caps and rotors all the time.

Seriously. The difference between MSD and a standard ignition setup (of which the FC ignition is a member) is like the difference between a standard ignition setup and a damp cardboard match in a rainstorm.

someone should put them through a test.. i really think the difference isnt that great.

I did put them through a test.

My car would barely *run* in a zero-degree start. Pull the choke out all the way, and it would blubber around 800rpm and flood out if you didn't tend to the car.

After the MSD. Zero degrees overnight. Yank choke out, instant smooth 1500rpm, can safely ignore car and get out and brush snow/scrape ice/etc without having to be at the ready to jump into the car and keep the engine from flooding. Oh and 20% better fuel economy, too.

There *is* no comparison. A double ended coil is a hair better than stock, but the MSD literally blows them away.

If you're not using the MSD coils, by the way, you may not be getting the best results, either. Standard coils work with a capacitive discharge ignition, but for best results you need something with somewhat different characteristics.

peejay have you tried the 2nd gen coil with the transistor trick (2GCDFIS with tranisistor trick)? and have you even read threw part of the thread concerning the transitor trick? I do not know from personal experience but Jeff20B I think was one of the first people to start doing the DLIDFIS, direct fire system using three first gen coils. (correct me if I'm wrong) and he beleved that it performed as well if not better than the msd ignition for a fraction of the cost. Heres a link http://www.geocities.com/cd23c/dlidfis.html

But after that he is the one that started the thread which lead to the development with some help to make the 2GCDFIS with tranisistor trick I believe he has a lot of experiance with this and knows alot 2GCDFIS with tranisistor trick is a great up grade for your Rx for a fraction of the cost of the msd just check out this thread about the 2nd gen coil and you will see unless ypu have an extra $400+ to spend but this is just my opinion. https://www.rx7club.com/1st-generation-specific-1979-1985-18/transistor-trick-2gcdfis-411312/

I tried the MSD with two stock 1st gen (Diamond) coils. It was like blahsville. A little more power than stock cap and rotor. Then I tried DLIDFIS and low and behold it stopped backfiring! More fuel was actually burning. I didn't touch the carb through all of my early tests, and the mean temperature was around 50°F each time.

The MSD is worth it to some; I won't argue about that. ;)