Technically...we ae not running 302's for those of us that have bored our blocks. But a 306 that can pull a 7.5 sec 1/8th @ 91 mph and weighs 3200 lbs with a 300 lb. driver in it is producing well over 440 hp
It's all speculation until it goes on a chassis dyno, based on Virtual Engine calculator with my best time, mph and the weight of the car is 378 hp. Now...that said, if the car hooked up well and shifted out properly I THINK it would be in the mid 7's which would put it at about 420-450 hp at the crank. I'm not sure of the exact deduction you would make by the time it gets to the wheels.
I didn't mean to imply that 350 horses couldn't be gotten out of a n/a 302. It usually takes a lot of work (and compression and extra fine-tuning along with race gas, etc). I just didn't recall your engines having that much work done on em before. Sorry bout that.
As far as placement of the oxygen sensor on an A/F gauge, if your exhaust system has an X-pipe, wouldn't the best placement be in the crossover? This way it gets a sampling of all eight cylinders.
if you got 4 cyl runnign rich and 4 running lean and they happen to even out by the time they get to the oxy sensor, you have no lead to why ur car is runnin like **** .... i saw on a forum somewhere else where 1 guy had 8 oxy sensors and he said it really helped him get his car running right i'll be the first person to tell you that i dont know it all..but i do speculate and an oxy in the crossover to me personally doesnt seem like it would do it's job just a random thought -beau
You COULD use one sensor for each bank and a switch to toggle back and forth. 8 sensors would be so cost prohibitive it would be rediculous. You would have to be a heavily sponsored racer or just a person with alot of extra money to do this. Heck a setup for ONE sensor breaks the budget for alot of people. O2 sensors and the hardware to interpret their signals have come down alot though latley. A setup can be had for around $400 these days. AC
i know it isnt practical for anyone on a budget..hell i'd never do it .... it is neat though and it works.
Your not gonna lean or enrich one cylinder on a carberated motor. The purpose behind an Air/ Fuel gauge and plug reading is to determine proper sizing of the carb jets, therefore an oxygen sensor at the crossover gives the best sampling of all 8 eight cylinders. I would think the procedure would be to use the A/F gauge and reduce or increase depending on whether it's running lean or rich 2 jet sizes to get into the stoich range, once in the stoich range reduce or increase 1 jet size until the plug reading is right. If memory serves me correctly I replaced the oxygen sensor on an F-150 I owned and it was after the Y joint (single tailpipe) but before the cat converter.
The o2 sensor is in the right exhaust manifold on my mothers '85 E150 . I would think the closer to the manifold the better.
beau- Say you had eight o2 sensors. How would you go about adjusting the air/fuel ratio individually for each cylinder?
I say chunk the O2 sensor idea out the window and put a EGT meter on it. Much more accurate and gives a better idea to what's going on inside.
