A sensor would cost 50 dollars new and the bung 5 dollars, digital volt meter 20 dollars. If your really on a budget you could get a sensor from the junk yard for free.:LOL:
Also are you using a adjustable vacuum canister?
Printable View
A sensor would cost 50 dollars new and the bung 5 dollars, digital volt meter 20 dollars. If your really on a budget you could get a sensor from the junk yard for free.:LOL:
Also are you using a adjustable vacuum canister?
What octane gas are you using? And where does the ping occur? Light acceleration from cruise?
I am running 87 octane, which is what I prefer for obvious reasons, I will try the next tank (in about 2 days if I keep test driving 5x per day) at 93 octane and see what happens with the current setup.
By retarding my initial timing to 10 degrees I seem to have eliminated partial and full throttle pinging under load (going up hill strong) but when accelerating strong out of a turn it will ping for sure, I am not sure if it still pings during light acceleration from cruise anymore, it did before I retarded it to 10.
The pinging issue started after I installed new spark plugs and an adjustable vac adv can on my dizzy (left stock weights and springs in there for now)
Started a new thread on this subject too...
The cam you have was used by G.M for 20 years in 305s and 350 and is a
easy to live with but has been best described as a "LAZY" Cam.
My Engineer recalibrated it and set it up with another 4* advance on
top of the Comp cams grind and that made a difference down low but cost
a bit on top as expected..Later I swapped it for a 222/222..450/460 GM
cam which is a mild cam & increased the Rear wheel torque by 155 lbs max.
My 355" had 195 TFS heads and 10.1/1 comp with 1.5/8 headers into a
2.5" system after collectors. Holley 600 with 6lbs fuel pressure+ 38* Total
advance. [10* static.] All the best with the project
Interesting, I would love to know the notorious history of this "lazy" grind...
This is the beauty of this hobby, unlimited options and opportunities to play!Quote:
My Engineer recalibrated it and set it up with another 4* advance on top of the Comp cams grind and that made a difference down low but cost a bit on top as expected
Thanks for your repy :D
Summit has sensor, bung and guage for less than $100. I just ordered them for my flathead...just wondering which exhaust to put bung in or can I do both with another bung and sensor?
The bung is usually installed close to the collector, mark the spot where the sensor will fit and be able to be installed and removed in-car (that's kinda important) and drill/weld the bung in.
There are other gauges out there that are dual and run 2 sensors, one on each side, but are more around $300 price range for some reason.
Honestly, once it is set up I wouldn't think you need it, just one more gauge to glutter up the dash and distract you, but it is nice to have :rolleyes: