Charlie, I forgot to mention that it is 36 degrees total advance at 4,000 rpms. Also forgot to mention I am not running vacuum advance, couldn't get it to run right with that hooked up. And these timing controls... are you talking about the timing gears that have 9 slots in them? Cause that's what I have.


But do you think if I keep running the octane booster then it's fine? Ever since I started using the octane booster it quit dieseling. And you mentioned that if it were detonating it would lose power. Well this thing is a handful and hasn't skipped a beat yet. Id rather not tear down the engine and mill the dome pistons down.

Basically the reason it has deiseld in the past was because the timing was off and cause it didn't have high enough octane in it. Well we got the timing squared away and I started running the booster and it's be fine. What do you think Charlie?

Thanks again!

Miker, yeah mine pretty much just doesn't want to run on 93 octane. But with the Lucas Oil Octane Booster it quit doing it and had been fine for 3,000 miles. If the engine were to fail or detonate, probably would've done it by now right?

Thank you Aussiebill, that's kind of what I figured!

I mean something like this, https://www.summitracing.com/parts/msd-8680

Your timing is coming in slowly, which is leaving some performance on the table but it may be helping you prevent worse detonation.

If you are comfortable with a reliance on octane booster and it does solve the issue, then keep using it.


Lawrenceville, GA

Ahh okay I see. This car is plenty powerful for me hahah, so I think I'm going to leave it alone.

The octane booster seems to solve the issue. Thanks for your time and all of the advice Charlie!

I think you are really pressing your luck. I would never consider running that kind of compression on todays crap fuels. I doubt any of the snake oil is actually doing much good. Remember that not all detonation can be heard, especially if you have headers. If you can hear it you have the worst condition, but it can also be happening that you can't hear.. So whether it is PING PING PING or ping ping ping eventually it will be KABOOM

If you can't hear it then how do you know it's detonating? Just by the engine losing power? I have my headers plugged and the exhaust running out back

If it is really mild, you may not hear it, and won't notice anything immediately.

There are gauges to monitor that, https://www.summitracing.com/parts/cei-102001/overview/.

  


Lawrenceville, GA

Oh awesome! Didn't know there was such thing. So if the green LEDS light up that's at mild detonation does that mean it's fine? Or do you not want the lights to light up at all?

It appears to only apply to computer controlled cars per the instructions.