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11-20-2008, 06:11 AM
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#1 | | TECH Enthusiast
Join Date: Feb 2008 Location: Tucson, AZ
Posts: 618
|  V6 Springs in the Rear?
I tried searching but couldn't come up with much.
- Are the V6 springs better for drag racing? If so, why?
- Is there enough of a difference to make it worth the change?
- Is it only certain year V6 springs, or any 4th Gen V6?
Thanks for helping the suspension newb.
__________________ 1993 Camaro Z28 M28 - Down for Repairs and Upgrades
LS1 Front End w/SS Hood, Billet Grill, Red and Black Interior
Moroso Cold Air Intake, Air Foil, Magnaflow 3" Exhaust w/Cut-Out, Pacesetter Shorty Headers, 160* Thermostat, Tubular Torque Arm, Underdrive Pulley, Switch Operated Cooling Fans, TB Coolant Bypass, Nitto 555R's Coming Soon: CC503, Scorpion 1.6 RR's, Crane Valve Springs, Ram Powergrip Clutch, LT1 Front End | 
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11-20-2008, 07:03 AM
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#2 | | 11 Second Club
Join Date: Mar 2006 Location: Ali AB, Tallil, Iraq Kickin it in the sand..
Posts: 9,837
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No, they suck..too high and too soft.
You want to transfer the power to the Tires, not let the Chassis absorb it.
The best setup is lowered, hard Suspension and soft Tires so they flex, allowing the power to go right to the ground.
That's the way I have my car setup, and it gets off the line quick.. | |
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11-20-2008, 12:21 PM
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#3 | | LS1TECH Sponsor
Join Date: Apr 2008 Location: Tampa FL
Posts: 839
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Quote:
Originally Posted by Counted Out  I tried searching but couldn't come up with much.
- Are the V6 springs better for drag racing? If so, why?
- Is there enough of a difference to make it worth the change?
- Is it only certain year V6 springs, or any 4th Gen V6?
Thanks for helping the suspension newb. | The v-6 rear spring have the same rate as the ls1 rear spring. As the other poster had stated you want the rear stiff on the f bodies that workss best. Alot of our customers use the stock spring in the rear and do the heater hose mod. It lowers it a little but the rear spring is still retained.
Last edited by BMR Sales; 11-21-2008 at 03:04 PM..
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11-20-2008, 10:00 PM
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#4 | | On The Tree
Join Date: Mar 2004 Location: Pasadena Texas
Posts: 127
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1LE springs here with the hose mod to lower the ride height. The 1LE's have a higher spring rate then stock Z's. I also have an airbag in the right rear.
__________________
99 Hugger Orange 1LE Camaro A4 , 383, 4.11 12 bolt.
11.0 @ 123 3550 lbs w driver on MT drag radials.
456 HP with Converter locked and 3.42 10 Bolt.
New Best 10.55 @ 132 ,ET Streets, 150 NX Wet shot. This car was driven to and from HRP.
New Combo L-92 Block and Heads 414ci
Being built by The Head Shop | |
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11-21-2008, 06:18 AM
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#5 | | TECH Enthusiast
Join Date: Feb 2008 Location: Tucson, AZ
Posts: 618
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Heater hose mod? Would someone like to enlighten me?
__________________ 1993 Camaro Z28 M28 - Down for Repairs and Upgrades
LS1 Front End w/SS Hood, Billet Grill, Red and Black Interior
Moroso Cold Air Intake, Air Foil, Magnaflow 3" Exhaust w/Cut-Out, Pacesetter Shorty Headers, 160* Thermostat, Tubular Torque Arm, Underdrive Pulley, Switch Operated Cooling Fans, TB Coolant Bypass, Nitto 555R's Coming Soon: CC503, Scorpion 1.6 RR's, Crane Valve Springs, Ram Powergrip Clutch, LT1 Front End | |
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11-21-2008, 06:55 AM
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#6 | | 11 Second Club
Join Date: Mar 2006 Location: Ali AB, Tallil, Iraq Kickin it in the sand..
Posts: 9,837
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Take the Spring Isolator out and slide a Heater Hose around the top of it to absorb the shock. It lowers it.
Last edited by the_merv; 11-21-2008 at 10:36 AM..
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11-21-2008, 09:22 AM
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#7 | | TECH Resident
Join Date: Mar 2004 Location: NJ
Posts: 880
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Merv, beautiful car you have there, nice set up.
__________________ 2001 WS6 M6 hurst w/ short stick, embroidered floor mats & headrests, SLP SFCs,UMI adj. LCAs,PHB, & TA, GMMG, TSP smoked lid, K&N, SLP bellows, Cammin TB, BMR STB, Raptor SL, QTPs HVMCs, ORY, Moser 9" 4.11's, Racetronix, TR-55s, TTP tune
317.95 rwhp 335.06 rwtq (stock) | 351.92 rwhp 364.39 rwtq (tuned)  | |
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11-21-2008, 10:37 AM
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#8 | | 11 Second Club
Join Date: Mar 2006 Location: Ali AB, Tallil, Iraq Kickin it in the sand..
Posts: 9,837
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Thanks. 
It needs a paint job though.. the Rear is the best looking part of it..kinda funny if you think about it..lol | |
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11-21-2008, 12:10 PM
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#9 | | TECH Resident
Join Date: Nov 2007 Location: Central Valley , Ca.
Posts: 826
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Only the 93 - 97 V6 rear springs are softer, I beleive their rate is about
95 lb, and the V8 springs 113 lb (z28). 
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99 NBM Camaro Z28, M6, pro 5.0, slp UD pulley, slp lid, slp bellow, LS6 intake, "Brownie" ported TB, Catch-can, TWM shift knob, stock exh. manifolds, R.T.cats. n Y pipe,3" cat-back w/spintech, Lots, of suspension mods! Powermaster 200amp alt.,"Big 3", Optima yellow top. Always a work in progress. Coming soon- crane/vinci 216-224 ,115 lsa cam. Yella Terra rocker arms. vinci ported oil pump, crane/vinci programmer. | |
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11-21-2008, 12:15 PM
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#10 | | LS1TECH Sponsor
Join Date: Apr 2002 Location: Brookville, PA
Posts: 4,490
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V-6 springs are not the same rate as Z28 springs, front or rear. They are lighter. Around 100 lbs/in vs. about 115 lbs/in on a Z28. The length also changes too. In fact, the 93-97 V-6 springs are different from the 98-02 V-6 springs, and as are the LT1 vs. LS1 springs. The differences are subtle in the rear especially, but they are there.
If you want to plant the tires harder you want to work the suspension to provide more anti-squat. A little change in rate (or staying with the same rate isn't really how you best accomplish that). Lowering springs do also tend to be lower, and much like they lessen body roll, they lessen body pitch. They are not ideal for drag racing, and it sould be noted drag srpings like the Eibach kits are quite tall, and soft (and use an airbag on the RR to tune).
__________________ Sam Strano SCCA National Champion (x5)
Strano Performance Parts
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11-21-2008, 03:04 PM
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#11 | | LS1TECH Sponsor
Join Date: Apr 2008 Location: Tampa FL
Posts: 839
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The 98-02 v-6 springs have the same rate as the 98-02 v-8 springs. Your right sam the 93-97 v-6 are lighter, guess i should have clarified which model i was referring too. The f body cars work very well with a stiffer rear spring. Our customer cars that cut the best 60' times have very little if any squat in the rear of the car. A good set of adjustable shocks set to a stiffer setting do the job quite nicely. If you take a look at the cars on BMR TV you will notice that they all have very little squat in the rear. Here is a link. http://www.bmrtvonline.com/featured_...php?reset=true | |
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