Mastering the art of the S197 3 link suspension (sixty foot)

Unreal

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So what is the easiest way to adjust the LCAs to different holes without wanting to kick a baby? Have them in the middle hole and traction at least on the street seems way less. Spins at will now, where it use to hook up slightly. Maybe that is good for the hoosiers? So should I try it on the middle holes or move them to the top hole before racing Friday?
 

BMR Tech

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The steeper LCA angle may very well hurt street traction, as you are applying more force to the tires. Overpowering the tires on the street, especially when not on hot concrete....is very easy to do.

I would leave it as is....and run it on a track, before making changes.

As for changing positions....having the car on a drive on lift, or ramps, is how I prefer to do it (with level car)

You should be able to remove the bolt....and raise or lower the LCA. It should be close to lining up, but the axle will shift slightly. You then place it where you want it, and apply pressure to the tire front/back....and use a large screwdriver to get the hole aligned. Once you do it 3 or 9 times, it becomes super duper easy peasy.
 

2011/5.0

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I also use a ratcheting strap theres a hole in frame up from the front of lca. I also remove tire Easy as pie
 

Unreal

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Got new tune from Mike@MAP to run with the 28" tires. Was shifting early. Going to start at ~21psi and go down from there. These tires should be more than enough for my low power car. Weather is mid 60s low 70s in the evenings, so DA should be good.
 

Unreal

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Ready to rock tonight
1106141749.jpg


1106141738a.jpg
 

lindertw

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NoVA
- Shocks - strange single adjustable
- Rear springs - cobra jet (m-5300-q)
- Struts - strange single adjustable
- Front springs - cobra jet (m-5300-q)
- Lower control arms - metco
- Relocation brackets - BMR
- Upper control arm - metco (with metco UCA mount)
- posi/diff - eaton truetrac
- Pan hard bar - competition engineering adjustable
- Pan hard bar support brace - competition engineering
- Gear size - frpp 4.10
- Brand/ tire size - M/T ET street (bias) 26X10.50-15
- Clutch or which converter at what stall? - OEM clutch
- Anti roll bar or which rear sway bar - OEM sway bar (no arb)
- 302 rwhp
- 3490 lbs race weight

pinion angle set to -2 deg
LCA set to middle hole on BMR relocation brackets
UCA set to uppermost hole on UCA mount

12.262 @ 109.99, with a 1.609 60' (new pb all around)!!

*****
test & tune Capitol Raceway, MD 07NOV14. DA was -350 to -1300 throughout the night

weight unk with driver/helmet, 1/4 tank of gas (Capitol doesn't have scales)
pass seat and rear seat bottom/backs removed
ps delete belt
front strut full loose
rear shock +7 clicks from full soft
15psi cold in rear tire
6500 rpm launch off limiter

07nov14_capitol_test-and-tune_zps11ee5f12.jpg


that last run felt good, and when I stopped at the timing shack I was like 'gimme my time slip b!t$H, I'm Rick James'

tumblr_m7urmk5mVy1r60v6do1_r1_500.gif
 
Last edited:

fdjizm

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Putting in work!! finally got my 60 down to 1.642!

Hoosier QTP: 18psi cold
2-Step: 6250 rpm
Struts: +1 click
Shocks: +6 clicks

I am going for 6500 next time out, didn't have the balls :roflmao:

I kept getting 1.68-1.70 with the struts at +2 and shocks at +7.
 

lindertw

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Jun 23, 2011
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Location
NoVA
- Shocks - strange single adjustable
- Rear springs - cobra jet (m-5300-q)
- Struts - strange single adjustable
- Front springs - cobra jet (m-5300-q)
- Lower control arms - metco
- Relocation brackets - BMR
- Upper control arm - metco (with metco UCA mount)
- posi/diff - eaton truetrac
- Pan hard bar - competition engineering adjustable
- Pan hard bar support brace - competition engineering
- Gear size - frpp 4.10
- Brand/ tire size - M/T ET street (bias) 26X10.50-15
- Clutch or which converter at what stall? - OEM clutch
- Anti roll bar or which rear sway bar - OEM sway bar (no arb)
- 302 rwhp
- 3490 lbs race weight

pinion angle set to -2 deg
LCA set to middle hole on BMR relocation brackets
UCA set to uppermost hole on UCA mount

12.095 @ 111.08, 1.576 60' (new pb all around)!!

*****
track rental at MIR 22NOV14. DA was -1895 ft for first run, and warmed up for subsequent runs

weight 3490 with driver/helmet, 1/4 tank of gas
pass seat and rear seat bottom/backs removed
ps delete belt
front strut full loose
rear shock +7 clicks from full soft
15psi cold in rear tire
6500 rpm launch off limiter

22nov14_test_and_tune_MIR_zps5c832642.jpg
 

429244

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- Shocks - strange single adjustable
- Rear springs - cobra jet (m-5300-q)
- Struts - strange single adjustable
- Front springs - cobra jet (m-5300-q)
- Lower control arms - metco
- Relocation brackets - BMR
- Upper control arm - metco (with metco UCA mount)
- posi/diff - eaton truetrac
- Pan hard bar - competition engineering adjustable
- Pan hard bar support brace - competition engineering
- Gear size - frpp 4.10
- Brand/ tire size - M/T ET street (bias) 26X10.50-15
- Clutch or which converter at what stall? - OEM clutch
- Anti roll bar or which rear sway bar - OEM sway bar (no arb)
- 302 rwhp
- 3490 lbs race weight

pinion angle set to -2 deg
LCA set to middle hole on BMR relocation brackets
UCA set to uppermost hole on UCA mount

12.095 @ 111.08, 1.576 60' (new pb all around)!!

*****
track rental at MIR 22NOV14. DA was -1895 ft for first run, and warmed up for subsequent runs

weight 3490 with driver/helmet, 1/4 tank of gas
pass seat and rear seat bottom/backs removed
ps delete belt
front strut full loose
rear shock +7 clicks from full soft
15psi cold in rear tire
6500 rpm launch off limiter

22nov14_test_and_tune_MIR_zps5c832642.jpg

Congratulations! 11's are close. Do you have plan to get that extra tenth?
 

lindertw

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Location
NoVA
Congratulations! 11's are close. Do you have plan to get that extra tenth?
tumblr_inline_mt8el8vRUs1qzxzrm.png


lol... I don't know that the track conditions could be more favorable, but I may give it another shot next weekend at Cecil - it's just such a long drive.

considerations for the winter:

- race tune
- double adj rear shocks
- 4.56 gears
- pull weight
- 1pc alum driveshaft (was not impressed my first go round, not sure I want to spend $ to try it again)

I haven't decided on anything yet.
 

429244

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- 1pc alum driveshaft (was not impressed my first go round, not sure I want to spend $ to try it again)

I haven't decided on anything yet.

I don't recall that story. What happened when you installed a 1 piece driveshaft?
Good luck with whatever you decide.
 

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