jgtruggy

I have a mach 427 in my 8t and it has been flaming out at high speeds. It burnt a plug yesterday and the temp was about 220. After about 15 minutes of driving it would start then if givin gas would dye. I played with the low speed thinking maybe not enough gas or to much was the problem. Idle screw was perfect. The engine has 2 gallons on it always use after run oil and temps never go over 260. I've been fiddling with rc for a couple of years and I'm stuck. Any help would be much appreciated. Thanks

jgtruggy

Anyone

captain america

iTrader: (12)

If you're burning plugs prematurely AND you're seeing the vehicle stall as you start to accelerate, your HSN is likely set too lean. Had your engine been running too rich, it wouldn't have burnt your plug.

Kingsbury

iTrader: (50)

If your full throttle and its flaming out its likely too lean on the top...If your flaming out at high speed but just let off the throttle, most likely too lean on the bottom, or not high enough idle. Try a pinch test.

mbx5rcr34

iTrader: (5)

pinch test ,all da way ,sometimes don't rely too much on the temp. gauge,i got 2 mach427 so far and i never have problem,the thing is some peeps they apply too much after run oil,it's just killing the plugs & they don't have idea what's going on.........

snowmansion

If your plug is not working anymore then you probably can say that you run your engine to lean if your experience this every time.. try to richen it..

But the way i see it is that if your are using a plug that is not the right one
( to cold) you can blow it out by full throttle/accelerating...