WOT misfires bad
03-08-2008, 04:49 PM
#1
Junior Member
Thread Starter
Join Date: May 2007
Location: So. Oregon
Posts: 21
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1986 IROC Z28
Engine: 383 Stroker
Transmission: built th350
Axle/Gears: 4:56
WOT misfires bad
( specs) 86 IROC
383 stroker
Scat Crank, I beam rods,10.5 to 1 compression forged pistons,
High volume oil pump
Dart Iron Eagle heads,215cc intake runner,72ccchamber,
205”/160” valves
Solid roller camshaft, scorpion aluminum roller rockers, stud girdles, bow tie tall valve covers.
Victor aluminum intake with a Holley 750cfm mechanical sec.carb
Long tube headers with Brand new true duel exhaust with holley blue fuel pump.
Heres the problem this motor will rev to 7100RPMs if you rev slowly without flooring it. If you wot at any rpm it will start backfiring and and quit reving.I just replaced everything electrical and rebuilt the carb. It seems like the secondarys aren't puttin out the fuel IMO. Any Ideas help please thanks
383 stroker
Scat Crank, I beam rods,10.5 to 1 compression forged pistons,
High volume oil pump
Dart Iron Eagle heads,215cc intake runner,72ccchamber,
205”/160” valves
Solid roller camshaft, scorpion aluminum roller rockers, stud girdles, bow tie tall valve covers.
Victor aluminum intake with a Holley 750cfm mechanical sec.carb
Long tube headers with Brand new true duel exhaust with holley blue fuel pump.
Heres the problem this motor will rev to 7100RPMs if you rev slowly without flooring it. If you wot at any rpm it will start backfiring and and quit reving.I just replaced everything electrical and rebuilt the carb. It seems like the secondarys aren't puttin out the fuel IMO. Any Ideas help please thanks
Last edited by five7kid; 03-08-2008 at 11:00 PM. Reason: Automerged Doublepost
03-08-2008, 11:00 PM
#2
03-09-2008, 10:54 AM
#3
Junior Member
Thread Starter
Join Date: May 2007
Location: So. Oregon
Posts: 21
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1986 IROC Z28
Engine: 383 Stroker
Transmission: built th350
Axle/Gears: 4:56
Re: WOT misfires bad
This carb I've got has the little hard to see in plastic site plugs.Which are brand new. I have tried looking in and can see the float but have no Idea where they should be at. I have worked on many of the screw in type, there easy but this one I dunno...... Any help would be appreciated thanks.
03-09-2008, 08:08 PM
#4
Moderator
iTrader: (14)
Join Date: Mar 2000
Location: Littleton, CO USA
Posts: 43,169
Likes: 0
Received 36 Likes
on
34 Posts
Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
The purpose of the site plugs is to set the float while the fuel pump is pumping, so that the fuel level comes just to the bottom of the hole.
03-09-2008, 09:10 PM
#5
Junior Member
Thread Starter
Join Date: May 2007
Location: So. Oregon
Posts: 21
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1986 IROC Z28
Engine: 383 Stroker
Transmission: built th350
Axle/Gears: 4:56
Re: WOT misfires bad
Ok thanks for the info.
----------
Do you think that might be my wot problem?
----------
Do you think that might be my wot problem?
Last edited by buzzzzz; 03-09-2008 at 09:15 PM. Reason: Automerged Doublepost
Thread
Thread Starter
Forum
Replies
Last Post
