defaultexistence

iTrader: (11)

hello, i recently bought a 93 transam..s.d. car 700r4 trans ,put llp style lt's on, drilled slotted brakes ,tubular p.h. rod,control arms, relocator brackets,adjustable tube tork arm,strut tower brc...,ect... so i plan on keeping this car around. i got a deal on an Msd coil to replace the stock unit,to complement the msd opti the motor already has.(came with car already installed).... recently i started getting a 2000-3000ish rpm miss and hesitation under a load along with the tach needle dancing when it happens ,i replaced plugs and wires...no change,..so i'm guessing the opti, first i replaced stock o2 sen's,no change, then i replaced coil with stock unit,found some wearing thin grounding out wires in harness..fixed. miss fire is gone!! ,..now i'm thinking i still have time before the dreaded opti fails ,so on to my question...i wana go distributorless.. is there a parts list i need to gather?...i plan on collecting it all over a lil time, is there some instructions out here some where on installation,and re-pinning? what computer will i need?ect....thx for your help

illusions

iTrader: (3)

have you checked out efi solutions? they have the lsx conversion that eliminates the opti all together. pretty nice setup. I wish I had gone with it. They also have the DIY wiring kit to adapt the lsx computer and then you can have it tuned with hp tuners. There are more tuners tuning lsx than LT1's anymore.

duh

iTrader: (16)

The only issue with the 93 is the harness......You're kinda on your own as the pinouts are different than the later model years....I'm planning on making my own harness as time and money allow.....

jaycenk

iTrader: (1)

Head to the junk yard and find a 96 to 97 lt1 harness, aslo find an ls1 pcm, Ls1 coils, and a 96 to 97 LT1 timing cover with the crank possition sensor. Then buy the reluctors and opti plug from EFI and repin the haness you get and run efi 24x and get a tune for it. The options for tuning are now endless as they will be tuning an ls1 pcm.

defaultexistence

iTrader: (11)

ok, i have my hands on a pcm from an 01 3.8 camero ..from memory it looks like the ls1 pcm...., will it work ? it also has the two connections across the top of it that the harness pin's into

On another topic...i also have my hands on a set of brakes from a 01 3.8 camero,fronts are double piston like ls1 and rears are bigger and slightly different in design than my 93,Are theythe sought after brakes to convert to? do the bolt right up? the brakes on this camero are positioned at 11o'clock on front and 3o'clock on rears......

defaultexistence

iTrader: (11)

anyone? will the 01 3.8 pcm be able to be reprgrammed for an lt1 efi 24x?

RamAir95TA

iTrader: (2)

Not a chance.

defaultexistence

iTrader: (11)

so.ok..cool , today i found some vortech 5.3 lsx truck coils on brackets with pigtail of main harness connector.. off a totaled out pickup for $100 bucks...good deal i guess, i then found a 96-97 timing cover on ebay for $120thats about it for this weeks paycheck bonus...cant wait to have a spare opti
guess i need a wiring harness next? why shouldnt i buy a 99+ f-body harness and pcm together? or is there a reason for a Lt1 harness? again my car is a 93 with a 700R4 T/A

1badzee

iTrader: (12)

97 harness won't be plug and play in a 93 car. You'll need to get a 96+97 body harness as well unless you are really nifty with wiring and you re-do what needs to be done. Personally I say stick with the Opti. There is nothing wrong with it, and will more than likely satisfy all of your performance needs. I have yet to have any issues. Just take some time and figure out what's going on. Have you checked the harness itself for any flaws? Maybe pcm? I have both for sale in case you need them

defaultexistence

iTrader: (11)

Hey thanks for chiming it, I'm not bashing the opti,The MSD is working fine right now no probs.When i bought it that was the only upgrade,not sure if its just a cap or an entire msd. owner/guy said it was but i havent found the timing screw on it yet.....but i need a front main, wana put a new timing chain on, i wana pressure wash the motor and engine bay and whole undercar from intake seal leak, putting tube k-memb on....i wana learn tuning for it.
...any how i dont understand the first sentence "97 harness won't be plug and play in a 93 car. You'll need to get a 96+97 body harness as well "

stevo9389

i got my 97 timing cover for $20 from LKQ with the crank sensor. dont spend $120 for one unless you absolutely have to.

defaultexistence

iTrader: (11)

well ****.

1badzee

iTrader: (12)

Well yeah, if you notice, only 93-94 cars have one bulkhead connector on the passenger side strut tower (body harness to engine harness). 95+ cars have two. It's just a lot easier to wire **** up when you have things somewhat matching

defaultexistence

iTrader: (11)

what is this guy telling me i need?

defaultexistence

iTrader: (11)

mornin bump

RamAir95TA

iTrader: (2)

What he's trying to tell you (me included) is that it's going to be costly - probably more than you think - in time, frustration, and money. If your car runs fine, just run what you have.

If it ain't broke, don't fix it.

defaultexistence

iTrader: (11)

I want to go with this mod.i already have began getting parts .im asking for words of wisdom in that direction really

1badzee

iTrader: (12)

Would you prefer if I typed it in Greek?

defaultexistence

iTrader: (11)

no,its just you arn't very clear on what harness you are saying to use/mod......

litch2004

iTrader: (1)

he is saying that on our cars (93-94 year model) that not only will you need the 96-97 engine harness, but you will also be needing the 96-97 body harness as well. The 96-97 engine harness will not connect to the 93-94 body harness. Reason for this is due to the fact that we have only a single connector on the passenger side wheel well versus the 96-97 harness having two connectors. Unless you are very capable of re-pinning your harness to work correctly with the new harness, it will not work.