Mavn

iTrader: (3)

Just read 10 pages and wasted my whole lunch break. Guess I get to starve. **** IT

Darth_V8r

iTrader: (4)

I wouldn't exactly call it a "waste"...

G Atsma

Consider the source..... lol

handyandy496

iTrader: (9)

These really work. 28/16/11.5

Darth_V8r

iTrader: (4)

I got Lance's coils installed over the weekend. It took a while, because after I got them, I realized I needed new wires, and then there was some back and forth on my part. I finally ended up using rope and calling firecore and saying the rope is 8.5" long. Anyway, first start and it was a really big scare, because the car wouldn't run without pedal. But driver side headers all hot, pass side headers all cold, rechecked and I had never hooked up the pass side coil pack connector.

First impression -- definitely strengthened up the idle. I actually dropped idle RPM 100 from 925 to 850 to 825. Playing around on scanner, I got it to idle at 650 in the garage, but I don't know if I like that for DD, because map was up around 85 KPA. 750 would run decent I think. But I needeto be able to return to idle, etc, so I'm working it down slowly. 850 definitely does great though.

And I did see a difference in my WB. It read a bit richer. I"m guessing this is improved combustion. So, I'm going to have to log and see what I see. Was not able to take it out for a hard run yet. It'll be hard to tell I think how it compares up top. Driving around this morning, though, It felt like less cam surge for sure. I'm tempted to try de-tuning the adaptive spark a bit, which would take some of the lumpiness out. Possibly get this thing to run 15-20 mph in third gear just off idle. Wouldn't THAT be something?

JakeFusion

iTrader: (7)

Those coils are great.

I thought he included the FireCore50 wires with it? Or is that with a stock coil mount and valve cover?

Darth_V8r

iTrader: (4)

That would be with the stock mount. These are not. Stock wires were 2 inches too short. Thats what SHE said. Giggedy

Che70velle

iTrader: (6)

pantera_efi

iTrader: (1)

Hi All, again some kind words, thanks.

I should add, yes OPEN the SPG to .062"

I should add, the coil dwell table was not changed as of yet ?

The IGN-1A coil is rated by Mercury Racing to output 102mj with a dwell time of 2.02ms.
The GM PCM has a common setting of 4.0ms dwell for OEM coil setting.
The IGN-1A coil dwell can be set to a MAX of 8.8ms/14 volts/80% duty cycle.
A common setting for the LS PCM is in the 6 - 6.5 ms range.

THUS your report is about performance gains when the coil dwell is set to 1/2 power !

NOW TO ADD, common reports at correct dwell times requires 2*- 3* LESS Spark Advance OVER 4500 RPM at WOT.

Lance

sxc Z28

Thanks for sharing Darth! When I changed from the stockers to Lances .580 coils on my bolt-on car I noticed the same things. Idle was better and throttle response was slightly improved. I didn't have HPT or any data to back it up but I could hear and feel it. I'm happy it wasn't all just in my head lol

joecar

Lance, this is very interesting to know... thanks.

Darth_V8r

iTrader: (4)

+1! I am still on stock dwell, but if it means cutting back on timing after adding some dwell, that's a good thing! I am running 055 gap right now.

HioSSilver

iTrader: (8)

Sounds like it's time for a gp on these coils

xc_SS/RS

nice build thread dude! i am curious about the coil packs though... do you need to retune or are they pnp?

i'd be in for a groupbuy ^

Darth_V8r

iTrader: (4)

I just dropped them in plug and play. A little more complicated because it needed longer wires. And the AC box required a little finagling. I made no tune changes, but as you see Lancecrecommends some. I am very interested in the way power and torque respond to dwell and timing. I will likely pull 3 degrees out when I increase dwell.

xc_SS/RS

gotcha, i actually spoke with him on the phone today and they sound very promising. i wouldn't mind seeing gains verified on a dyno or a track but it seems like those who swap to the IGN-1A love them

Darth_V8r

iTrader: (4)

Even if I dyno today (can not cause traveling) I would not have the before numbers.

99 Black Bird T/A

iTrader: (4)

Darth, thanks for the info on Lance's trick coil ​​​​packs. That really sounds like a nice upgrade.

xc_SS/RS

gotcha, sounds good man i'll watch your build for any other logs you run to see your findings. thanks for posting up your initial impressions as well

HioSSilver

iTrader: (8)

I would do some before and after if i had a set of those coils