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Thread: Subframe conectors?
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05-21-2008, 11:38 AM #1
- Join Date
- Sep 2007
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- North America
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Navy Blue Metallic- 1999 Trans-Am
Subframe conectors?
Is it true the verts came with sub-frame connectors from factory? I was sorta browsing around for some for my 99 and found that mentioned on a vendors site.
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05-21-2008, 12:25 PM #2
FALSE, I added UMI bolt on...
Regards,
Todd
#cajunhotrodder on instagram
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05-21-2008, 12:33 PM #3
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- Sep 2006
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- mississippi
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red white- 1999 z28 vert 1998 z28 ht
BMR weld on's here! Wow, what a difference. Best addition yet.
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05-21-2008, 02:11 PM #4
Same here, I have the weld in sub frames and I had to ditch the K member for clearance on the exhaust. Can't tell a difference without that k member. Sub Frames definetly make for a stiffer ride.
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05-21-2008, 04:03 PM #5
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- Sep 2007
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- North America
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Navy Blue Metallic- 1999 Trans-Am
How much, if any, clearance did you lose?
I've got stock exhaust and it jist tickles the ground as I go in and out of my parkade if they're any lower than that I forsee problems.
I'd really like to add them, hopefully they'll help keep the car tight longer.
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05-22-2008, 04:44 AM #6
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- Sep 2005
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- NE Indiana
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Black- 1998 Trans Am WS6 'Vert
The factory-supplied 'vert-unique reinforcement under the floor pan ("K" member some have referred to above) is commonly mistaken as a "sub frame connector", it's is NOT. While it does stiffen the floorpan to resist twisting, it doesn't come close to the function or performance of a real SFC.
Johnny B - '98 "Triple Black" WS6 Convert, M6, All Options, ASC #3030 (1 of 50)
KBDDSFC, DGM C/F Tonneau, MTI C/F Lid, K&N, HPP-III, 160 T-stat, Pro 5.0
Link to Firebird Production Breakdowns
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05-22-2008, 12:05 PM #7
Factory bracing was intended to allow for a smoother ride . If you want a MUCH stiffer ( READ,rougher-jigglie ) ride then by all means go ahead and install the sub-frame connectors . The down side includes , less ground clearance,much harsher ride quality, added extra weight , power to weight decrease , less MPG . Take your choice .
Last edited by Z ROADSTER; 06-05-2008 at 05:30 PM.
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05-23-2008, 01:08 PM #8
I can't really tell how much you might lose, mine is lowered two inches front and rear (compliments of the previous owner). My exhaust hangs below my sub frames, so I actuley didn't lose anything from the sfc's. Measure the difference between the lowest "scratch point" and the frame, then just find something that will fit in that space.
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05-23-2008, 04:17 PM #9
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05-31-2008, 10:11 AM #10
(Factory bracing was to reinforce the body since the there is no roof)
I have them along with a STB
the ride in no way suffered it is much more responsive
and flex under hard excel is now limited
clearance is no issue they tuck nicely and the y-pipe actually hangs lower
I would highly reccomed them for an Fbody vert
(now lowering springs that might be a diffrent story depending on the rates)
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06-04-2008, 05:04 PM #11
I agree, the ride is firmer with less squeaks and rattles since the chassis is sturdier with reinforcement - squeaks come from stuff flexing and rubbing.
The firmer ride is GOOD becase these are performance cars. Since the frame is not twisting and flip-flopping, the suspension can do its job properly and control the body motions. The benefit to handling is really great.
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06-05-2008, 04:04 PM #12
What is the general idea, belief or recommendations about SLP subframe connectors? bolt on.
2001WS6 T/A slp lid, smooth bellows, Taylor Thundervolt wires, Bosch+4, Vig 3200 stall, BM trans cooler, SLP 3" Y-pipe, 3" corsa catback, preditor custom tune by RWTD, 275/17BFG'S. 1976T/A 455-4spd-3:42
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