Thread: BG 6 Shooter vs Edelbrock Dual Quad?

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Originally Posted by troy_cryer

Thanks for the input!

From a logical point of view...I agree about the thoughts of the the temps would be lower if it were too rich. In fact that caused me to invest more time and money because I thought I new better. Actually due to the long duration of the cam, ignition is actually carrying over into the exhaust...which dramatically raises the exhaust temps. I have adjusted timing until my fingers cant feel the heat any longer...but the large cam still causes the exhaust to be too hot (ranging from 500 - 650 at the port).

So...again, I am just so done with FI. This car has served us very well. It has always been reliable and ran strong...until I installed the FI. Now I am ready to bring it back to simplicity. So far the comments lean towards dual quads. Could that be because no one has installed a Barry Grant 6-Shooter?

Thanks again!
Troy

Troy,if you have an exhaust temp. of 500 to 650 your engine is "pig rich".
Is this just a wild guess or do you have a pyrometer installed on the engine?
On a performance engine engine it is very common to hit 1,250 to 1,350 degree's F when taken at the start of the exhaust tube.
In fact before the wide band O20 sensor came along every endurance engine I built was set to run at 1,250 F or more depending on the piston material.
In a drag engine that was torn down every 20 or so pass's we would run it close to 1,500 degree's F.
"Acutually due to the long duration of the cam,ignition is carrying over into the exhaust...which dramatically rasies the exhaust temps."
I am un-sure what you are trying to say.

exhaust temp isn't anywhere close to be as cool as coolant temp.... exhaust temp is supposed to be the direct cause of an explosion..... thats why header paint is designed for 1200+ degrees..... you should lean that baby out a ton and she should run pretty nice