It is interesting, but I agree here - the opti sits tucked behind both the crank snout and the water pump. But then he did say it was a standard SBC crank, so maybe there's some clearance issues up front that we normally aren't used to (LOOL).

 

Ford rotating assembly?

If the scan tool shows advance equal to the tables, then the distributor is misaligned.

If he was doing it for himself, would be one thing.

But he's doing this for (to!) someone else...

 

last i checked an LT1 uses the same 1 piece crank as any other later sbc, and the rods and pistons are used in any sbc.

 

+2... Rotating assemnly doesn't matter. I just looked into my crystal ball and saw many future problems with that setup... What are you going to do WHEN the opti goes out? (notice I said WHEN not IF...)

 

Thats what I though too.

 

really good work, something new to me on LTx I've seen something similar on nissan RB26 engines
I think the opti didn't work cause the owner used an externally balanced crank shaft of 400ci small block Chevy to stroke his engine
when using that they use old style Chevy timing cover to clear the balance wights on the crank
I always thought ( correct me if I'm wrong) that any GM port injection distributer "like 91 camaro's" could drive the LT-1 PCM , should have the same outputs to the pcm

 

forget to ask apart of like crispier throttle response obviously comparing to a carb engine, did you pick any more hp
is it worth it after all that hard work and how much did it cost

 

interesting,
Nice work
Kory

 

Sounds like you just needed a spacer or a longer snout on the pulley - Some years had a long one on the lt1. If you put a 96/97 hub on it needs a spacer for where the crank reluctor ring was.

I appluad you for the effort. Just seems to me if you were going to go that way you would eliminate the opti, not move it lol.


I used a magnetic trigger on the crank for mine.

 

Congrats on making it work, I'm impressed. It's always nice to see people trying new things. All you have to do now is convince him to use that adapted LT1 fuel injection on a std SBC. I could have used something like this on my BBC, instead I had to go with an aftermarket fuel injection system.

 

is it just me or am i seeing a coil-on-plug setup like an ls1...

correct me if im wrong but does that not eliminate the opti all together??

 

Depends. The typical approach is to use the Bailey Engineering LTCC 8-coil setup. That requires the optical signal from the Opti. I run 8 LS1-style coils using an aftermarker ECU, but it still requires a cam reference signal, and that's what the Opti optical sensor provides.

 

looks cool, I would think the optical sensor would last a lot longer being up there as well as not having to worry about rotor screws. Any other pics of it during assembly? Any machining involved or did you just mount part of the opti to the stock plate on the distributor? I may have to cut up an old opti just to try this, I love the LT1 but hate having to tear things apart so much to service the ignition.

 

I like your tool holder..

But what's the dog/cat gonna use now?

 

The project still running great. We went to the dyno yesterday. The car made 359rwhp @5426 RPM and 397tq@3641 RPM. Total timing was 37deg and 13.33 AFR.
With N2O- Tpi plate 150 hp- It made 501.5 rwhp @5221 RPM and 578.8 tq@3973. A/F 11.9