CARB PROBLEM!
10-17-2006, 08:11 PM
#1
Junior Member
Thread Starter
Join Date: May 2006
Location: miami,fl
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1980 old cutlass
Engine: 305 modified
Transmission: 350 turbo
Axle/Gears: 2.29
CARB PROBLEM!
i have holley 650 my back barrels are not opening up do i need to buy another or can i fix it? and is thst the reason why my car was bogging out at 3000rpms
10-17-2006, 08:18 PM
#2
Member
Join Date: Feb 2006
Location: warwick
Posts: 251
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1983 & 1993 camaro z28
Engine: 5.0 carbed/ LT1 injected
Transmission: T5/auto
Axle/Gears: 373/posi
should
well i've been alot of holly parts you could rebiuld and get it to run well again there are plenty of carb parts out there.
10-17-2006, 10:10 PM
#4
Moderator
iTrader: (14)
Join Date: Mar 2000
Location: Littleton, CO USA
Posts: 43,169
Likes: 0
Received 35 Likes
on
34 Posts
Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Vacuum secondaries, right? How do you know they aren't opening? Does it bog out at 3000 RPMs regardless of throttle position, or only 3000 RPMs at WOT?
10-18-2006, 07:22 PM
#5
Junior Member
Thread Starter
Join Date: May 2006
Location: miami,fl
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1980 old cutlass
Engine: 305 modified
Transmission: 350 turbo
Axle/Gears: 2.29
WELL I HIT THE THROTTLE AND THE FRONT OPEN NOT THE BACK! AND YES AT 3000 RPMS IT BOGS
10-19-2006, 01:14 AM
#6
Moderator
iTrader: (14)
Join Date: Mar 2000
Location: Littleton, CO USA
Posts: 43,169
Likes: 0
Received 35 Likes
on
34 Posts
Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
If you are parked in the driveway or garage with the hood open and open the throttle while watching the secondaries, you won't see the secondaries open. They don't open that quickly, because you need to sustain flow through the primaries in order to create enough of a vacuum signal to start opening the secondaries, and sustain it to get them to open completely. Try that with no load on the engine and you're going to be sending rods through the block wall before the secondaries start to open.
A "bog" at 3000 RPMs regardless of throttle opening is not a secondary, or even a carb problem. It's an ignition problem (most likely). Could be other things, though, but still, not a carb problem.
A "bog" at 3000 RPMs regardless of throttle opening is not a secondary, or even a carb problem. It's an ignition problem (most likely). Could be other things, though, but still, not a carb problem.
Thread
Thread Starter
Forum
Replies
Last Post
theshackle
Tech / General Engine
4
03-05-2017 06:37 PM
BlackphantomZ28
Engine/Drivetrain/Suspension Parts for Sale
0
08-22-2015 01:00 PM
