'84 Vette 383 stroker build and mods. OBD2 Conversion, and general BS.
Im starting this thread to keep clutter out of another thread.
My friend and I are concocting a 383 stroker bottom end, LT1 heads and Computer from a 94 harness and a 95 PCM/ECU going into an 84 Vette with the 700R4 Cable trans, basically were going to make the computer think its a manual, since the kickdown and all is mechanical... He refuses to go over to OBD2 on this motor due to cost of tuner and various other parts he would need... So my new question is, is there a replacement for an opti-spark that will give the computer the signals it needs from something like a vortec distributor, and Crank position sensor and cam sensor, or will the LT computer not work off of this?
This is going to be a sight to behold once we start to try to make things "work"...
Any insight would be appreciated.
Were going to have an OBD1 Tuner for the LT computer coming here soon so we will be able to adjust the computer to compensate for fuel, but we dont know exactly how were going to do the spark 100% yet, If we can make this ECU work off the vortec style distributor that would be the optimum route we want to take since we have nearly everything to run a 97 vortec in there minus the full wire harness....
Howard: Your saying with the JET DST you need a separate program to read codes and other stuff right? Are there any other down sides to it versus EFI Live? Both are full flash, no live update like you would get with a RoadRunner.
My situation, I dont have anything NEEDING to be tuned with my truck, My buddy is doing an LT1 Head and intake swap onto a 383 block like our 350 blocks, Currently we have the PCM from a '95 camaro (OBD1) with the LT1 tune and a '94 harness stripped down to what we need, Well thats the easy part... We are trying to find out if there is a way remotely possible to get rid of the opti-spark all together and run a Vortec style Crank and Cam sensor setup... We dont think this is possible with the OBD1 computer, but with either EFI Live or Jet DST, Im 99% sure we can do that with some time under the hood with a laptop and custom cooking up a flash that will work with the LT Intake and a Vortec distributor setup. He thinks going to OBD2 will be too costly, but I dont think he has quite grasped the concept of the fact that all it will add is a pair of O2 sensors and the 411 computer, and go in partially with me on the JET or EFI programmer.
My future plans could be doing the Marine intake, or going the LS route with a 6.0 drop in in the future.
The JET DST says it does support the little black box under my hood is why Im leaning toward it, plus the lower cost of the unit itself getting it off of ebay from JEGS ebay store...
Those were pulled strait from the other thread.
A little added info is on his vette forum
http://www.digitalcorvettes.com/forums/showthread.php?t=132820
Im starting this thread to keep clutter out of another thread.
My friend and I are concocting a 383 stroker bottom end, LT1 heads and Computer from a 94 harness and a 95 PCM/ECU going into an 84 Vette with the 700R4 Cable trans, basically were going to make the computer think its a manual, since the kickdown and all is mechanical... He refuses to go over to OBD2 on this motor due to cost of tuner and various other parts he would need... So my new question is, is there a replacement for an opti-spark that will give the computer the signals it needs from something like a vortec distributor, and Crank position sensor and cam sensor, or will the LT computer not work off of this?
This is going to be a sight to behold once we start to try to make things "work"...
Any insight would be appreciated.
Were going to have an OBD1 Tuner for the LT computer coming here soon so we will be able to adjust the computer to compensate for fuel, but we dont know exactly how were going to do the spark 100% yet, If we can make this ECU work off the vortec style distributor that would be the optimum route we want to take since we have nearly everything to run a 97 vortec in there minus the full wire harness....
Howard: Your saying with the JET DST you need a separate program to read codes and other stuff right? Are there any other down sides to it versus EFI Live? Both are full flash, no live update like you would get with a RoadRunner.
My situation, I dont have anything NEEDING to be tuned with my truck, My buddy is doing an LT1 Head and intake swap onto a 383 block like our 350 blocks, Currently we have the PCM from a '95 camaro (OBD1) with the LT1 tune and a '94 harness stripped down to what we need, Well thats the easy part... We are trying to find out if there is a way remotely possible to get rid of the opti-spark all together and run a Vortec style Crank and Cam sensor setup... We dont think this is possible with the OBD1 computer, but with either EFI Live or Jet DST, Im 99% sure we can do that with some time under the hood with a laptop and custom cooking up a flash that will work with the LT Intake and a Vortec distributor setup. He thinks going to OBD2 will be too costly, but I dont think he has quite grasped the concept of the fact that all it will add is a pair of O2 sensors and the 411 computer, and go in partially with me on the JET or EFI programmer.
My future plans could be doing the Marine intake, or going the LS route with a 6.0 drop in in the future.
The JET DST says it does support the little black box under my hood is why Im leaning toward it, plus the lower cost of the unit itself getting it off of ebay from JEGS ebay store...
Those were pulled strait from the other thread.
A little added info is on his vette forum
http://www.digitalcorvettes.com/forums/showthread.php?t=132820
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