I am after some advice as there appears to be quiet a big discrepancy between the header temperatures of cylinders 5-8 compared to 1-4. A quick search of Google produced opposing opinions with some saying it is not important and difficult to tell at idle, whilst others disagreed. I bought a cheap thermal thermometer to check and discovered after 5 minutes of idling, headers on cylinders 1-4 where showing around 30 degrees C and 1-8 90 degrees C.
What alerted me to this was before the car was put away for winter in November I did a 50 mile run and I felt there seemed to be considerable more heat coming from 5-8 headers compared to 1-4. I have no idea what sort of temperatures or discrepancy would be acceptable, and the headers are ceramic coated. I believe the car is also running rich at present, but all carb settings are the same.
Any thoughts most welcome.
Thanks
Nick
What alerted me to this was before the car was put away for winter in November I did a 50 mile run and I felt there seemed to be considerable more heat coming from 5-8 headers compared to 1-4. I have no idea what sort of temperatures or discrepancy would be acceptable, and the headers are ceramic coated. I believe the car is also running rich at present, but all carb settings are the same.
Any thoughts most welcome.
Thanks
Nick