Tokico D-specs, Rear adjustments

MustangJon255 · March 24th, 2009, 03:02 PM

Hey guys,
I picked up a set of Rear D-specs from a shop, and now im just wondering what is a good setting for the drag strip... any suggestions?

ROUSH STAGE II · March 24th, 2009, 03:05 PM

Fully stiff! This will keep the rear from squatting and will force the front to raise instead. It also helps with rebound which can make you break loose after the launch.

06VistaBlueGT · March 24th, 2009, 03:22 PM

I always set the front to full soft and the rear to full stiff. Lets the front come up and keeps the back from squatting.

06GTMustang89 · March 24th, 2009, 03:28 PM

why wouldn't you want the back to squat?? That would create more traction this is why drag shocks and springs for the rear are soft as hell...

ROUSH STAGE II · March 24th, 2009, 03:46 PM

I've cut my best 60' times with the passenger side fully stiff, and the drivers side off of full stiff 1 click. This keeps the rebound from breaking you loose after launch, shifts weight to compensate for torque, forces the front end to raise, and transfers more energy forward instead of downward which causes rebounding. Every time you shift with a soft suspension it has to compress the suspension before propelling you forward too.

06VistaBlueGT · March 24th, 2009, 04:08 PM

With full stiff in the rear, the energy of the weight being transferred to the rear tires isn't absorbed in the compression of the springs. It is transferred directly to the tires. I'm no physicist but this is what I've been told by many successful racers.

chad05gt · March 24th, 2009, 04:20 PM

yup... rears too loose and the front of your car looks like a bouncing basketball going down 60' court

scramblr · March 24th, 2009, 05:21 PM

Originally Posted by ROUSH STAGE II

I've cut my best 60' times with the passenger side fully stiff, and the drivers side off of full stiff 1 click. This keeps the rebound from breaking you loose after launch, shifts weight to compensate for torque, forces the front end to raise, and transfers more energy forward instead of downward which causes rebounding. Every time you shift with a soft suspension it has to compress the suspension before propelling you forward too.

+1. The rear end used to like to walk off the launch until I got to this setting. Now I launch straight as an arrow.

MustangJon255 · March 24th, 2009, 11:40 PM

sweet deal- i'll try it out at the next track day, thanks!

March 24th, 2009, 03:02 PM	#1
MustangJon255 Regular 2005 Mustang GT 12.67 Join Date: Apr 2007 Location: Houston,Tx Posts: 374 iTrader: 0 reviews	Tokico D-specs, Rear adjustments Hey guys, I picked up a set of Rear D-specs from a shop, and now im just wondering what is a good setting for the drag strip... any suggestions? __________________ "Never before has a 12 second car looked so mean and intimidating. Bring it." Go to www.fquick.com/americanmuscle255 for all info as well as videos!

March 24th, 2009, 03:05 PM	#2
ROUSH STAGE II Hardcore Enthusiast 2005 Turbonetics Baby!!! Join Date: Jul 2007 Location: Mauriceville, Texas Posts: 2,220 iTrader: 0 reviews	Fully stiff! This will keep the rear from squatting and will force the front to raise instead. It also helps with rebound which can make you break loose after the launch. __________________ Turbonetics baby!!! 11.23@122 mph... Last edited by ROUSH STAGE II; March 24th, 2009 at 03:11 PM.

March 24th, 2009, 03:28 PM	#4
06GTMustang89 MM Fanatic 2006 Mustang GT 6spd 12.61@109mph Join Date: Sep 2007 Location: North Carolina Posts: 3,178 iTrader: 0 reviews	why wouldn't you want the back to squat?? That would create more traction this is why drag shocks and springs for the rear are soft as hell... __________________ JLT CAI: KOOKS LT's: Comp NSR II's: 4.56's: TR6060: Steeda LCA, UCA: QA1's: Roush rear springs...see garage for more.

March 24th, 2009, 03:46 PM	#5
ROUSH STAGE II Hardcore Enthusiast 2005 Turbonetics Baby!!! Join Date: Jul 2007 Location: Mauriceville, Texas Posts: 2,220 iTrader: 0 reviews	I've cut my best 60' times with the passenger side fully stiff, and the drivers side off of full stiff 1 click. This keeps the rebound from breaking you loose after launch, shifts weight to compensate for torque, forces the front end to raise, and transfers more energy forward instead of downward which causes rebounding. Every time you shift with a soft suspension it has to compress the suspension before propelling you forward too. __________________ Turbonetics baby!!! 11.23@122 mph...

March 24th, 2009, 11:40 PM	#9
MustangJon255 Regular 2005 Mustang GT 12.67 Join Date: Apr 2007 Location: Houston,Tx Posts: 374 iTrader: 0 reviews	sweet deal- i'll try it out at the next track day, thanks! __________________ "Never before has a 12 second car looked so mean and intimidating. Bring it." Go to www.fquick.com/americanmuscle255 for all info as well as videos!

March 24th, 2009, 03:22 PM	#3
06VistaBlueGT Enthusiast 2006 Mustang GT 12.76@105 Join Date: Jan 2007 Location: Stark County, Ohio Posts: 878 iTrader: 0 reviews	I always set the front to full soft and the rear to full stiff. Lets the front come up and keeps the back from squatting.

March 24th, 2009, 04:08 PM	#6
06VistaBlueGT Enthusiast 2006 Mustang GT 12.76@105 Join Date: Jan 2007 Location: Stark County, Ohio Posts: 878 iTrader: 0 reviews	With full stiff in the rear, the energy of the weight being transferred to the rear tires isn't absorbed in the compression of the springs. It is transferred directly to the tires. I'm no physicist but this is what I've been told by many successful racers.

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