Hey guys just reporting in with a small update, took your advice and went to 93 pump and ill say the car is definately more driver friendly and was easier to get consistant afr with, idle is still iffy I think the stock computer is doing something with that because it'll jump from rich to lean and bounce around doing that, not as bad as it was on e85 tho, I have not yet gotten onto boost with the pump gas as I have a 12psi spring and not going to chance it with no intercooler. Also would like to retard the timing.
Speaking of timing, ever since I got the car running it will only run right with the timing set to what appears to be 20 degrees if I get it to line up at anything between 10 and 0 it runs like crap shuts off at idle and sputters with any load on it, I don't know if its the timing light I'm using or what right now I just had the engine at TDC and line the notches on the dizzy and have it at the middle of the adjustment point. Insight would be greatly appriciated
its easy to be off a tooth so you need to use a light on the crank, if you can see it in those ranges with the light you probably have it in correctly.
Don't forget to wait till the engine is warmed up and jumper the terminals in the connector before you set the timing, otherwise you are setting the base timing lower than it reads because the ecu throws in extra advance at idle and at most loads for that matter. you should hear a change in how its running when you jumper the terminal.
I would also reset the ecu if you haven't done that yet, its probably confused by the various changes in gas.
so reset > warm it up > jumper > set base timing to 10 > remove jumper and it should jump up to 14-16 ish.
1995 Lexus SC300 5spd Na-T ( TT Ecu Mod + a few others)