need some help
+2
fasrnur
alowerlevel
6 posters
G3GM :: G3 :: General Discussion
Page 1 of 1
need some help
so i'm 105 miles into my break in period for a brand new posi rear end that was a 2.73 and now is a 3.73 posi rear end.
i went out on a drive ans when i started to do a brake tork the car started to mis fire and then it died out.
it started right up again but when i floored it- it back fired and i blew open both mufflers out surely there is no connection about the engine misfire along with the rear end gear
its a 350 and i have a 3 speed trans, it revs high traveling the highways,
does the high rpms have anything to do with it
thnks Danny
i went out on a drive ans when i started to do a brake tork the car started to mis fire and then it died out.
it started right up again but when i floored it- it back fired and i blew open both mufflers out surely there is no connection about the engine misfire along with the rear end gear
its a 350 and i have a 3 speed trans, it revs high traveling the highways,
does the high rpms have anything to do with it
thnks Danny
alive 75- G3GM Member
- Street Cred : 0
Re: need some help
alive 75 wrote:so i'm 105 miles into my break in period for a brand new posi rear end that was a 2.73 and now is a 3.73 posi rear end.
i went out on a drive ans when i started to do a brake tork the car started to mis fire and then it died out.
it started right up again but when i floored it- it back fired and i blew open both mufflers out surely there is no connection about the engine misfire along with the rear end gear
its a 350 and i have a 3 speed trans, it revs high traveling the highways,
does the high rpms have anything to do with it
thnks Danny
I highly doubt that the rear gears could cause a back fire. Check your plugs and such. Ignition components.
JF74chevelle- G3GM Member
- Street Cred : 0
Re: need some help
JF74chevelle wrote:I highly doubt that the rear gears could cause a back fire. Check your plugs and such. Ignition components.
X2, either ignition or a carburetor issue
alowerlevel- G3GM Member
- Street Cred : 6
Re: need some help
Has it done it again sine sir? As for the high revs on the highway, you put some steeper gears in it so those will contribute to a higher rpm while driving at highway speeds.
fasrnur- G3GM Enthusiast
- Street Cred : 9
Re: need some help
Sounds like ignition problems. If your car has points and not a hei, i would start there.
Hs1973- G3GM Enthusiast
- Street Cred : 14
so this is what happened
a spring popped off the weights under the rotor, and I'm guessing that caused the backfire
I only found this out after I went to the local winners circle and bought new plugs wires cap and rotor and header heat rap
I installed everything, I put the heavy springs in and advanced the timing, I took the car out and ran it a few miles before I laid into it,
I did a nice brake tork and it was perfect did not pop hesitate or misfire, I left a nice 8 foot dual patch of rubber on the back country road,
I only found this out after I went to the local winners circle and bought new plugs wires cap and rotor and header heat rap
I installed everything, I put the heavy springs in and advanced the timing, I took the car out and ran it a few miles before I laid into it,
I did a nice brake tork and it was perfect did not pop hesitate or misfire, I left a nice 8 foot dual patch of rubber on the back country road,
alive 75- G3GM Member
- Street Cred : 0
Re: need some help
alive 75 wrote:a spring popped off the weights under the rotor, and I'm guessing that caused the backfire
I only found this out after I went to the local winners circle and bought new plugs wires cap and rotor and header heat rap
I installed everything, I put the heavy springs in and advanced the timing, I took the car out and ran it a few miles before I laid into it,
I did a nice brake tork and it was perfect did not pop hesitate or misfire, I left a nice 8 foot dual patch of rubber on the back country road,
Glad you found the problem.
JF74chevelle- G3GM Member
- Street Cred : 0
Re: need some help
Laying rubber feels so good. Glad you figured it out.
REVINKEVIN / Mr. 600+HP- G3GM Senior Member
- Street Cred : 19
G3GM :: G3 :: General Discussion
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