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400HP in a vert.. Rollcage?

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Old Jul 1, 2005 | 09:31 AM
  #1  
JerseyMark's Avatar
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From: South Jersey
Car: 1991 RS Convertible
Engine: 96 LT1
Transmission: T5
Axle/Gears: 3.45 9-Bolt
400HP in a vert.. Rollcage?

Hey everyone,
Ive got a 91 RS Convertible. I am currently building a new 350ci engine for it. The engine will be putting out somewhere between 350-400hp. I already have a set of MAC sub frames & I am planning on getting the other type of SFC's. Will the torque of the engine twist my chasis enough to cause dammage? I would rather not have to put a roll cage in, but I will if I have to.

Thanks,
Mark B
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Old Jul 1, 2005 | 10:15 AM
  #2  
MrDude_1's Avatar
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Joined: Jun 2001
Posts: 9,550
Likes: 4
From: Charleston, SC
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
Re: 400HP in a vert.. Rollcage?

Originally posted by JerseyMark
Hey everyone,
Ive got a 91 RS Convertible. I am currently building a new 350ci engine for it. The engine will be putting out somewhere between 350-400hp. I already have a set of MAC sub frames & I am planning on getting the other type of SFC's. Will the torque of the engine twist my chasis enough to cause dammage? I would rather not have to put a roll cage in, but I will if I have to.

Thanks,
Mark B

no, you dont have to worry about damage.


however, you will probly need a rollbar to be legal at the dragstrip..
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Old Jul 1, 2005 | 05:37 PM
  #3  
89Vert's Avatar
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Joined: May 2005
Posts: 140
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From: Maple Ridge, B.C., Canada
Car: '89 Iroc Vert
Engine: 355 TPI
Transmission: T-5(for now)
Axle/Gears: 3.45 9 Bolt
I'd be worried about twisting your car with a stock 350

in mine i can feel the body twist alot just going over a speed bump
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Old Jul 10, 2005 | 01:22 PM
  #4  
MerF's Avatar
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Joined: Sep 2004
Posts: 94
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From: VA/MD; depends on the mood.
Car: '88 IROC convertible
Engine: Freakish 305 TPI
Transmission: Dying 700r4
Axle/Gears: LT1 rear
Re: Re: 400HP in a vert.. Rollcage?

Originally posted by MrDude_1
no, you dont have to worry about damage.
1) I have often wondered this as well...thanks!

2) How wierd that all the neighborhood kids call me "Mr. Dude".
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Old Jul 10, 2005 | 02:34 PM
  #5  
89rsragtop's Avatar
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Joined: Jun 2001
Posts: 412
Likes: 1
From: Long Island, N.Y.
Car: blue
Engine: LS1
Transmission: 6 speed
Axle/Gears: 3.73 posi
Re: 400HP in a vert.. Rollcage?

Originally posted by JerseyMark
Hey everyone,
Ive got a 91 RS Convertible. I am currently building a new 350ci engine for it. The engine will be putting out somewhere between 350-400hp. I already have a set of MAC sub frames & I am planning on getting the other type of SFC's. Will the torque of the engine twist my chasis enough to cause dammage? I would rather not have to put a roll cage in, but I will if I have to.

Thanks,
Mark B
Not a problem.as long as you have SFCs . I am making 331 to the wheels on the dyno. That's around 370-380- hp at the crank, I guess. Anyway I have Kenny Browns SFCs and Spohn T arm and LCAs and it's just fine.
Tom
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Old Jul 10, 2005 | 08:05 PM
  #6  
Cadillac's Avatar
Supreme Member
 
Joined: Aug 2004
Posts: 4,168
Likes: 3
From: Marietta, GA
Car: '91 Firebird Convertible
Engine: 305 TBI (LO3)
Transmission: 700r4, Vette Servo
Axle/Gears: 3.27 9 Bolt, PBR disks
Re: Re: 400HP in a vert.. Rollcage?

Originally posted by 89rsragtop
Not a problem.as long as you have SFCs . I am making 331 to the wheels on the dyno. That's around 370-380- hp at the crank, I guess. Anyway I have Kenny Browns SFCs and Spohn T arm and LCAs and it's just fine.
Tom
LS1... nice.
Attached Thumbnails 400HP in a vert.. Rollcage?-boobs2.jpg  
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Old Jul 20, 2005 | 10:50 PM
  #7  
gmgod's Avatar
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Joined: Mar 2002
Posts: 1,176
Likes: 0
From: Springfield, MO
Car: 92 T/A VERT
Engine: LB9
Transmission: AUTO
Axle/Gears: 7.5 / 3.42's
lol......... very nice.
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Old Jul 21, 2005 | 10:30 PM
  #8  
smokefan's Avatar
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20 Year Member
 
Joined: Nov 2004
Posts: 1,347
Likes: 0
From: Connecticut
Car: 86 IROC w/Danko bodykit, 1988 iroc vert, 1989 k1500 pickup 6" lift and 35" tires, 2002 chevy tahoe z71
Engine: 383 stealth ram, 305 tpi, 350 tbi, 5.3l
Transmission: T56, 700r4, 700r4, 4l460
Very nice
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Old Jul 25, 2005 | 12:21 AM
  #9  
XtremeZ91's Avatar
Junior Member
 
Joined: May 2004
Posts: 8
Likes: 0
From: Toledo,Ohio
Car: 91 Z28 Convertible
Engine: ZZ4 350 TPI
Transmission: T-56
Axle/Gears: 3.73
I am making 450 at the crank and no roll cage here just SFC's and runs like a champ.
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Old Jul 26, 2005 | 01:23 AM
  #10  
Mr. IROC-Z's Avatar
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iTrader: (1)
 
Joined: Jan 2000
Posts: 1,110
Likes: 6
From: san jose, ca
Car: 1990 IROC-Z (De-Badged-Carbon Hood)
Engine: Superram 383
Transmission: T-56 w/upgraded Viper Internals
Axle/Gears: 3.73 18x8 and 18x11 irocs
I love that picture above (the guy lookin at the chicks ****)...hahaha. Is that a photoshop or real?
***..she is hot.
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