is it my carb or should i move to the suspension section
Thread Starter
Member
Joined: Feb 2008
Posts: 184
Likes: 0
From: Mesa AZ
Car: 85 Z28 W/T-Tops
Engine: 383 crate engine edel carb n headrs
Transmission: ex700R4/NOW T5
Axle/Gears: 3.08 std
is it my carb or should i move to the suspension section
i have an 85 maro with the 305 stock swapped a t5 and when im driving i get a lot of vibration on 5th im thinking its the carb bogging or lacking fuel if i downshift to 4th like 90% of vibration goes away any ideas?
Joined: Mar 2000
Posts: 43,187
Likes: 46
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Probably the Transmission forum.
What rear gears are you running?
What rear gears are you running?
Thread Starter
Member
Joined: Feb 2008
Posts: 184
Likes: 0
From: Mesa AZ
Car: 85 Z28 W/T-Tops
Engine: 383 crate engine edel carb n headrs
Transmission: ex700R4/NOW T5
Axle/Gears: 3.08 std
Re: is it my carb or should i move to the suspension section
i got 3.08 STD also the funny thing is that if i let go of the gas on 5th its a smoth ride (crusing like) but as soon as i touch the gas all vibration its back and also aint i supposed to get like an extra burst of speed if i go WOT on fifth because of the secondaries kicking in cuz i dont really notice an intant bust it just starts to gain speed but really slow
Joined: Mar 2000
Posts: 43,187
Likes: 46
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
The secondaries probably won't open up in 5th unless you've just shifted from redline in 4th.
Supreme Member
Joined: Apr 2002
Posts: 3,552
Likes: 5
From: New Jersey
Car: 86 Corvette, 89 IROC, 1999 TA
Engine: 350, 350, LS1
Transmission: 700r4, 700r4, T-56
Axle/Gears: 3.07, 373, 4.10
Re: is it my carb or should i move to the suspension section
probably a gearing issue, step up to 3.42's at least and your problem will likely be solved.
Joined: May 2004
Posts: 5,338
Likes: 73
From: Lexington, SC
Car: 1987 SC/1985 TA
Engine: 350/vortec/fitech
Transmission: T56
Axle/Gears: 3.27 9-bolt
Re: is it my carb or should i move to the suspension section
This is as far from carb's as you can get and still be in this forum...or planet. When you downshift the rpm's change, not the carb's fault. Sorry.
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Thread Starter
Member
Joined: Feb 2008
Posts: 184
Likes: 0
From: Mesa AZ
Car: 85 Z28 W/T-Tops
Engine: 383 crate engine edel carb n headrs
Transmission: ex700R4/NOW T5
Axle/Gears: 3.08 std
Re: is it my carb or should i move to the suspension section
thanks for all the input guys ill move on to the transmission
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