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View Full Version : Engine bogs at end of straight



weasel27
07-10-2017, 03:11 PM
Have 358 that runs great until it gets a little heat in it then it bogs/loses power at end of straight awayalmost feels like somebody pulls the choke.could it be the msd box or coil?

zeroracing
07-10-2017, 04:33 PM
I had a cracked fuel fitting. Coming out of my cell on the inside of the 90 degree. Caused the motor to cut out just like that at end of straight. Took me director to find it was a very small crash but just enough.

JustAddDirt
07-10-2017, 11:21 PM
What is your fuel pressure @ end of straight?
Have you double checked to see if fuel filter is in correct direction?

Brian Gray
07-11-2017, 05:22 PM
get a wide band afr guage. it will help you determine fuel related issues vs ignition/ mechanical. most likely sounds like a fuel delivery problem.

CCHIEF
07-12-2017, 07:39 PM
Dead head or return line fuel system? How much pressure are you running? Timing ? Fuel type and where do you buy it?

rakracing
07-12-2017, 08:05 PM
could be fuel issue, had a problem like this ,complained about car hit a governor 3/4 way down straight, tried valve springs ,carbs, fuel pumps, ended up being the hei distributor , it didn't break up just layed down, got it fixed and felt like I got 100 hp back, check plugs ours showed rich, fuel should show lean.