Convertible drag cars
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Junior Member
Joined: Jan 2017
Posts: 1
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Convertible drag cars
I am currently building a convertible drag car, I am hearing that they are heavier then usual, have any of you guys weighed yall cars? I also have a few other questions i will list below
Weight:
Mods:
How fast:
Pics:
Weight:
Mods:
How fast:
Pics:
Joined: Jan 2005
Posts: 1,402
Likes: 200
From: S. UTAH
Car: 1989 IROC-Z 305 LB9 AT Convertible
Engine: LB9 305
Transmission: AT
Re: Convertible drag cars
Verts are heavier and top up or down, have more aerodynamic drag. Sorry, no specs to provide.
Joined: Sep 2000
Posts: 2,507
Likes: 195
From: Moorpark, CA
Car: '91 GTA, '92 T/A Convertible
Engine: GTA: 350 w/Vortec heads, T/A: 305
Transmission: Pro-built 700R4
Axle/Gears: GTA: 3.27, T/A: 2.73
Re: Convertible drag cars
I thought the same thing, but a previous owner of my '92 T/A convertible had installed a line lock on the prop valve in addition to more wiring that I am still removing from the car.
Supreme Member
Joined: Aug 2002
Posts: 1,240
Likes: 56
From: ARIZONA
Car: 92 Trans Am Conv
Engine: LB9
Transmission: T5
Axle/Gears: 3.08
Re: Convertible drag cars
The weight difference isn't much. That hatch glass is heavy and the chassis stiffening is pitiful.
And your center of gravity is ever so slightly lower.
And your center of gravity is ever so slightly lower.
Joined: Jun 2003
Posts: 5,028
Likes: 78
From: Desert
Car: 1991 Z28 Vert
Engine: 383 single plane efi
Transmission: T-56
Axle/Gears: 8.8 with 3.73s
Re: Convertible drag cars
Agreed. The connectors on these cars are riveted on and maybe 1/8" thick. The convertible top, tonneau cover and trunk lid probably make up for the weight difference of the hatch and top or T tops. Convertibles are rarely seen as drag cars because they are much more rare in the thirdgen population (driving up their cost) in addition to having the most chassis flex.