I have the Delteq convertors if you want to dissect one. PM me with your address if you want to look at it. I will say the only major flaw was the sealing and lack of a superior heat sink. The unit bolted directly to the cylinder head.
I have the Delteq convertors if you want to dissect one. PM me with your address if you want to look at it. I will say the only major flaw was the sealing and lack of a superior heat sink. The unit bolted directly to the cylinder head.
Tom once I get the Delteq I will pull it apart and see if I can make a schematic so we can compare to Vilefly's work. I wonder if a better cooled and sealed Delteq unit would be the ticket. I would also like to get it to work with LS style coils since those are available everywhere and I can test with coils off my truck
So my Opti officially died on me today, I did more research and there are some guys that have attempted to take normal hall effect signals like 58X and convert to the signals to the square wave that is seen by the PCM.
Apparently this chip can help: http://www.ti.com/product/LM1815
See this thread: https://ls1tech.com/forums/lt1-lt4-m...r-preview.html
More rambling, but could you basically make a trigger wheel with 360 slots and one with 8 slots for the LS sensors to pick up? would whatever crank sensor is used in the LS engines work? Im gonna sketch something up today
You can get a sensor from AIP Electronics. P/N is OS95LT and they cost about $55.
If you're going to put trigger wheels on the engine then might as well add the coil wiring harness and do the 0411 PCM conversion.
Note that the crank turns 2X for every cam rotation. So, you could move the high resolution 1* signal to the crank but would need to use 720 teeth instead of 360 teeth. You can't put the low resolution signal on the crank, it has to be on the cam.
Last edited by lionelhutz; 11-14-2017 at 12:55 AM.
It would be easy to do the 0411 PCM conversion, but I guess I am being cheap and trying to keep the LT1 PCMOriginally Posted by lionelhutz
The 411 swap on an LT1takes a lot of tuning. You also have to put a 1996 and newer valve body in your 4L60E. I am finishing up tuning a 411 swap on my LT4 Hotcam engine that is heavily modified. I will assist anyone who plans on doing one.
The delteq system and a good opti work great without spending the cash on the 411 swap. I was wrong when I said that delteq was out of business. I was just looking at their website. The kits are still kinda pricey, but still cheaper than a 411 swap. We will have to see what Aroberson77 & Vilefly come up with.
Last edited by Tom B.; 09-14-2017 at 11:16 PM.
My 0411/24x/CNP/DBW swap did not take too much tuning honestly speaking. Swapped in a 2002 8.1 engine operating system, copy pasted most of my 350's old table values into the tune. Flashed the entire PCM not just the calibration. After it was all wired up & connected, hit the key. It fired up, idled, had good throttle response, took it for a drive and did a little fine tweaking. I had swapped the heads and cam at the same time. If the 350 Vortec had been stock, it likely would have run well with ZERO additional tuning. I am actually in the process of removing the L31 marine intake and swapping in a ported Edelbrock Vortec TPI base and siamesed SLP runners and plenum onto it. I have one of the LT1/TPI EFIConnection DBW throttle bodies I picked up second hand that I will end up using if it fits and clears the accessory drive I ran previously from a 1995 G20 van on my 1983 G20 that had a 383 TPI in it. I will probably have the only OBD2 TPI Express van in existence.
No reason you couldn't have a new optispark disk laser cut to your specs and installed in place of the original. Then "analog up" the signal to simulate a reluctor. Oh, wait.....forgot the magnetorestrictive sensor has a digital output like a hall effect sensor. No analoging needed.
Neat post on the alternate opti-conversion, just wish they weren't trading one problem for another.....such as debris damaging those tiny teeth and crank sensor. The crank sensor would have to be a hi-impedence type just like an ABS wheel speed sensor to make it sensitive enough to work.
Last edited by vilefly; 09-16-2017 at 04:53 AM.
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