LTCC coil conversion
Thread Starter
10 Second Club
iTrader: (40)
Joined: Nov 2006
Posts: 3,180
Likes: 2
From: Mundelein,Illinois
LTCC coil conversion Anyone running this coil per plug conversion? There's been a lot of talk about efi24x, but i don't have deep pockets for it. This LTCC seems to be a better alternative. I know it still utilizes the opti, but I think only the optical part and the rotor is eliminated. Any feedback of install and results, pros and cons, likes and dislikes, etc. is greatly appreciated. Thanks.
Butch, my buddy loves it but when he installed his nitrous he couldnt use his ltcc unless he opted out to spend about 700 on a new msd box. Which sux for a lot of people and Idk if you want to spend that much on a msd box? He switched to the opti and runs his nitrous but does miss his ltcc
Thread Starter
10 Second Club
iTrader: (40)
Joined: Nov 2006
Posts: 3,180
Likes: 2
From: Mundelein,Illinois
Butch, my buddy loves it but when he installed his nitrous he couldnt use his ltcc unless he opted out to spend about 700 on a new msd box. Which sux for a lot of people and Idk if you want to spend that much on a msd box? He switched to the opti and runs his nitrous but does miss his ltcc
I know Dyna spark has an opti designed just for this however I think it is fairly expensive....I looked into this vaguely..However, I was turned off quickly due to the fact you still need the optical unit of the opti to be in working condition.....
He has dynaspark now and it failed him 2x already since new and he hates optis so bad that he cant wait to go back to ltcc. But he loves nitrous, so its eating him up everyday lol
Trending Topics
There is very little advantage, IMO, in going with the LTCC setup. Even though you eliminate the cap/rotor from the equation, you still need the optical sensor to function properly (which has it's issues as well).
IMO, if it ain't broke, don't fix it.
IMO, if it ain't broke, don't fix it.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
To each their own. I have LTCC, no complaints, and prefer the throttle response over what my MSD 6AL was able to provide. In my 15 years of owning this car, I've not once had an opti fail due to the sensor which was enough evidence for me to give the LTCC a shot.
I will say that if the EFI 24x conversion had been available when I was making my decision, I probably would have gone that route but it is more costly. I think the tuning options make it a more attractive option in addition to completely ridding yourself of the opti.
I don't understand why the comment was made about needing an upgraded MSD box to run nitrous. I run LTCC and an FJO progressive controller and can't imagine what else might be needed. Just curious.
I will say that if the EFI 24x conversion had been available when I was making my decision, I probably would have gone that route but it is more costly. I think the tuning options make it a more attractive option in addition to completely ridding yourself of the opti.
I don't understand why the comment was made about needing an upgraded MSD box to run nitrous. I run LTCC and an FJO progressive controller and can't imagine what else might be needed. Just curious.
save your pennies for the 24x system. With that solid roller you should be wanting to max out the pcm's capabilities at some point down the road (maybe not right now with the stock bottom end)
TECH Regular
Joined: Jan 2005
Posts: 456
Likes: 0
The LS1 PCM will allow spark/fuel multipliers for nitrous.
Set parameters to apply spark/fuel multipliers.
Multiplier table applied to spark advance table.
Multipier table applied to fuel (VE) table.
EFILive download is free (sets to demo without registration...which is the source of the images provided above). You can check this out for yourself and see everything else EFILive has to offer for the LS1 PCM. The nitrous control is part of one of their custom operating systems (COS5) and is no additional cost.
Set parameters to apply spark/fuel multipliers.
Multiplier table applied to spark advance table.
Multipier table applied to fuel (VE) table.
EFILive download is free (sets to demo without registration...which is the source of the images provided above). You can check this out for yourself and see everything else EFILive has to offer for the LS1 PCM. The nitrous control is part of one of their custom operating systems (COS5) and is no additional cost.
Yes, the LTCC setup will make your car run "better" but I don't believe with more power. It was one of the better upgrades I did when I had my ‘94 and today, I’d do it again if it wasn’t for the EFI Connections kit.
When moving to the LTCC setup, the rotor must still be retained as it secures the Opti wheel in place. Otherwise, high voltage will no longer run through the distributor and the stock ignition module can be removed.
The Dynaspark setup is still a stock style LT1 Opti Spark distributor but much more precisly made with upgraded components. Ultimately, it performs the exact same function as the stock unit. The pickup controls the PCM and the rotor/cap send the spark from the single coil to the correct cylinder.
I also do not understand why with nitrous, the LTCC kit wouldn’t work.
When moving to the LTCC setup, the rotor must still be retained as it secures the Opti wheel in place. Otherwise, high voltage will no longer run through the distributor and the stock ignition module can be removed.
The Dynaspark setup is still a stock style LT1 Opti Spark distributor but much more precisly made with upgraded components. Ultimately, it performs the exact same function as the stock unit. The pickup controls the PCM and the rotor/cap send the spark from the single coil to the correct cylinder.
I also do not understand why with nitrous, the LTCC kit wouldn’t work.
it works just fine.
I'm thinking that he's not aware of other available options rather than going with some high dollar MSD box. By going LTCC you will lose the features from the MSD like the window switch, timing retard, etc which are all very much needed IMHO.
The LTCC has built in timing retard functionality and I went with an FJO progressive controller which provides the window switch functionality. I now have better spark, better nitrous control, and features available to support future mods.
I'll say it again though...if 24x were available at the time and I had the $$$, I would have gone that route and still thrown in the FJO controller.
I'm thinking that he's not aware of other available options rather than going with some high dollar MSD box. By going LTCC you will lose the features from the MSD like the window switch, timing retard, etc which are all very much needed IMHO.
The LTCC has built in timing retard functionality and I went with an FJO progressive controller which provides the window switch functionality. I now have better spark, better nitrous control, and features available to support future mods.
I'll say it again though...if 24x were available at the time and I had the $$$, I would have gone that route and still thrown in the FJO controller.
I have to bump this up.
I ran Delteq last LT1 car - we all know that saga.
I have another opti car now.
I run a 4L60E and seems the EFI Connection set up won't support my OBDI 95 trans.
Sooooooooooo - where is the LTCC sold, the install detailed? I already have a tune - need another after LTCC?
I ran Delteq last LT1 car - we all know that saga.
I have another opti car now.
I run a 4L60E and seems the EFI Connection set up won't support my OBDI 95 trans.
Sooooooooooo - where is the LTCC sold, the install detailed? I already have a tune - need another after LTCC?
Thread Starter
10 Second Club
iTrader: (40)
Joined: Nov 2006
Posts: 3,180
Likes: 2
From: Mundelein,Illinois
I have to bump this up.
I ran Delteq last LT1 car - we all know that saga.
I have another opti car now.
I run a 4L60E and seems the EFI Connection set up won't support my OBDI 95 trans.
Sooooooooooo - where is the LTCC sold, the install detailed? I already have a tune - need another after LTCC?
I ran Delteq last LT1 car - we all know that saga.
I have another opti car now.
I run a 4L60E and seems the EFI Connection set up won't support my OBDI 95 trans.
Sooooooooooo - where is the LTCC sold, the install detailed? I already have a tune - need another after LTCC?
I wonder if swapping the 96-97 internal selonoids and harness/plugs into the OBD 1 trans would make it work?...