Subframes on a 3rd gen convertible
Subframes on a 3rd gen convertible
I´m thinking about getting sub frame connecters and I could get a good deal on a pair of MAC´s …. The only problem is that the guy who initially bought them has a 4th gen, so I´m not sure if they fit my ride ???? any ideas ????
Thanks for your help
Thanks for your help
Supreme Member
iTrader: (1)
Joined: Jul 1999
Posts: 1,334
Likes: 1
From: Key West, Florida!
Car: 89RSconvtZZ4TPI
Engine: ZZ4TPI
Transmission: 700R4 TRIPP TRANNY
I seriously doubt 4th gen SFC's will fit a 3rd gen. I have Alstons on my 89 RS. The only ones that would fit a convertible and clear a dual cat converter. They are tubular so they are stronger than boxed units. Mine are bolt on or weld in. You will feel a big improvement with SFC's in your ragtop. My 89 RS used to flex like Hot Wheels track. She's rock solid now.
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Rob P
89RSconvtZZ4TPI Edelbrock Intake
SLP Dual Cold Air Intake 1 5/8" Headers Semi-Siamesed Runners, IROC
suspension, alum shaft. Numerous mods.
92Z28convt5spd (stock)
71Impala convt 402BB
BETTER DRIVING THRU SUPERIOR HORSEPOWER!
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Rob P
89RSconvtZZ4TPI Edelbrock Intake
SLP Dual Cold Air Intake 1 5/8" Headers Semi-Siamesed Runners, IROC
suspension, alum shaft. Numerous mods.
92Z28convt5spd (stock)
71Impala convt 402BB
BETTER DRIVING THRU SUPERIOR HORSEPOWER!
Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Nope, 4th gen SFC's wont fit on a thirdgen. Alston's are one of the few that will fit on a thirdgen convertible. http://www.cachassisworks.com/
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1991 Camaro Z28
5.7L 5-Speed (originally 305)
317 RWHP, 418 RWTQ
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Member: SoCal F-Bodies
-=ICON Motorsports=-
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1991 Camaro Z28
5.7L 5-Speed (originally 305)
317 RWHP, 418 RWTQ
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Member: SoCal F-Bodies
-=ICON Motorsports=-
Member
Joined: Jun 2001
Posts: 412
Likes: 1
From: Long Island, N.Y.
Car: blue
Engine: LS1
Transmission: 6 speed
Axle/Gears: 3.73 posi
I used to call my ragtop the nerf car because it flexed so much. I installed Kenny Brown SFCs and a edlebrock strut tower brace. Now it fells like a go-kart very tight.
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1989 rs ragtop LO3 KB subframes & edelbrock towerbrace to hold it together. edelbrock 3" cat back system.
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1989 rs ragtop LO3 KB subframes & edelbrock towerbrace to hold it together. edelbrock 3" cat back system.
Joined: Dec 1999
Posts: 5,964
Likes: 37
From: Hacienda Heights, CA
Car: 90 RS 'Vert, 88 IROC-Z, 88 Firebird
Engine: 305 ci tbi, 305 ci tpi, 350 ci tpi
Transmission: WC-T5, WC-T5, 700R4
Axle/Gears: 3.45, 3.27, 3.27
Great deal or not, those MAC's won't fit for two reason's. First any SFC for a 4th gen won't fit a thirdgen. Second the MAC SFC mounts on the perimiter, which is where your existing boxed sheet metal reinforced piece is located. You don't want to remove that to install a SFC. Get either the Alstons or Kenny Browne SFC's.
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90 RS Convertible
Owner: Top-Down Solutions
(626)369-0040
http://www.sc3gfb.org/members/lonsal.html
http://www.taskerinc.com/gs3/profiles/Lon_profile.htm
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90 RS Convertible
Owner: Top-Down Solutions
(626)369-0040
http://www.sc3gfb.org/members/lonsal.html
http://www.taskerinc.com/gs3/profiles/Lon_profile.htm
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