1984HO

iTrader: (1)

hey guys i had some extra time tonite so i was working on the camaro and decided that while i was playin with the choke adjustment i would conduct a science expieimnent, i am goin to put a o2 sensor on my car to assist in tuning my new quadrajet and had heard that the farther from the heads the cooler and therfor less desirable the location for the 02 wich must be 500+ degrees for proper operation.

well i started the car and it high idled for about a minute (yay for a properly working choke). then i let it just idle up to temp (165*) then took temp readings at different locations with my infared thermometer her are the results
these are all in park @950 rpm at operating temp (headman headers and y pipe )

1. primary as expected about 6-700*f
2 drirvers side collecter (factory location) 600*
3. y-pipe collecter ( bout 6" forward of cat) 550-575*
4. after cat 4-450*

based on these readings i think the conclusion is that the way that hedmans y-pipe has the driver side collector very close to the y-pipe collector means that an o2 mounted at the coolector of either the headers or the y-pipe would probobly function properly.

sorry this is so long

steve