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Author Topic: ALS/500 Sting Ray  (Read 2513 times)
Hekalite
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« on: February 12, 2008, 10:13:51 AM »

Parts

Engine
Sport cams & valves
Street PD supercharger

Handling
all race parts
Street weight reduction

Wheels
Avon racing slicks
Maximum width
15" Enkei RP F1

Aero
Forza rear wing



500 hp
506 lb-ft
3,016 lbs

Speed: 5.2
Acceleration: 6.2
Braking: 5.7
Handling: 5.2

0 to 60: 4.077s
0 to 100: 9.591s
Top Speed: 163.7 mph

60 to 0: 108.7 ft
100 to 0: 284.6 ft

Gs @60mph: 1.10
Gs @120mph: 1.06



Tires
Front: 28psi
Rear: 28psi

Gears
FD: 2.70
1st: 3.74
2nd: 2.56
3rd: 1.91
4th: 1.51
5th: 1.26
6th: 1.06 (not used)

Alignment
Front camber: -1.1
Rear camber: -0.9

Front toe: 0.1
Rear toe: -0.1

Caster: 5.5

ARB
Front: 15.08
Rear: 12.52

Springs
Front: 514.1
Rear: 490.4

Front height: 7.8
Rear height: 7.8 (note: bar is higher)

Shocks
Front rebound: 7.0
Rear rebound: 5.8

Front bump: 2.4
Rear bump: 2.0

Aero
Front: NA
Rear: 150 (max)

Brakes
48% front
100% pressure

Differential
Accel: 12%
Decel: 20% 22%

« Last Edit: February 13, 2008, 10:59:37 AM by Hekalite » Logged

aka Kyuzo on FM.net

Exodus Racing
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« Reply #1 on: February 12, 2008, 10:47:04 AM »

2 thoughts on your numbers:

-Your bump numbers seem pretty low in comparison to your rebound numbers...is this to give better stability in the elevation changes at Road Atlanta ? Do you think it helps ?

-Why do you think the differential deceleration should be higher ?

« Last Edit: February 12, 2008, 11:19:51 AM by Hekalite » Logged

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Exodus Racing
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Hekalite
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« Reply #2 on: February 12, 2008, 11:20:35 AM »

I kept lowering the bump numbers to keep it from breaking loose when I would hit a curb.  It feels pretty good the way it is now in that respect.  I think it handles the last two corners a little better this way too, though I'm not sure if it's directly related to the bump or not.

I'm still chirping the tires on deceleration, which can usually be fixed two ways.  Either I can slow down a little more on entry or I can mess with the diff.  I usually play with the diff until the car isn't fighting me so much.  It's not too bad where it is, but I need to experiment to see if I can enter the corners a little harder and still hold it together.

I had a run going that was over .3 faster that the 84.282 but I blew it at the end...again. I will get into the 83s.  I only ran 10 or so laps this morning and I had a few runs near my best time so I feel this build is definitely working better for me than the toe crazy build. Smiley

One of the things I love about this car is it forces me to overcome one of my bad habits.  I don't have a lot of patience coming out of the corner so I tend to nail the gas too early.  Can't do that in the Sting Ray.  No sir.


that was freaky, I was trying to modify your post instead of reply
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aka Kyuzo on FM.net

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Hekalite
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« Reply #3 on: February 14, 2008, 10:08:32 AM »

Here are my latest settings for the Sting Ray.  Top score so far with this configuration is 83.356.

numbers in blue are altered from above



Tires
Front: 27psi
Rear: 27psi

Gears
FD: 2.62
1st: 3.56
2nd: 2.37
3rd: 1.75
4th: 1.38
5th: 1.17 (not used)
6th: 1.00 (not used)

Alignment
Front camber: -1.1
Rear camber: -0.9

Front toe: 0.1
Rear toe: -0.1

Caster: 5.2

ARB
Front: 15.08
Rear: 10.52

Springs
Front: 514.1
Rear: 475.9

Front height: 7.6
Rear height: 7.6 (note: bar is higher)

Shocks
Front rebound: 7.2
Rear rebound: 5.2

Front bump: 2.4
Rear bump: 2.0

Aero
Front: NA
Rear: 150 (max)

Brakes
48% front
100% pressure

Differential
Accel: 12%
Decel: 22%

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aka Kyuzo on FM.net

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« Reply #4 on: February 14, 2008, 03:01:01 PM »

With the first tune, i ran a high 83, so i'm gunna give your new tune a test run.  The cycle seems to be Sting Ray, ZR1 then GS.  I just finished up the GS, so now it's back to the 'Ray. 
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DirtDriver
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« Reply #5 on: February 14, 2008, 03:52:19 PM »

Nice to see signs of life in here, btw...missed ya, Hek.

DD
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« Reply #6 on: February 14, 2008, 09:17:53 PM »

Excellent tune Hekalite!! i built my current Sting Ray tune off of this one, and i almost nabbed a high 82 with it. 
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Hekalite
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« Reply #7 on: February 14, 2008, 09:20:14 PM »

That is great to hear!  I could swear that thing had an 82 in it, but I'm not sure I'm the driver for the job.  Glad I could help.
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aka Kyuzo on FM.net

Exodus Racing
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« Reply #8 on: February 15, 2008, 11:04:32 AM »

My driving style seems to like having 50 aero, so that's what i put, aswell as keeping 28/28 TP, 50% brake balance and moving caster to 5.6, but the rest is borrowed from your tune.  I'm pretty sure a better driver than me can nab a 82.8 with the car.
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Hekalite
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« Reply #9 on: February 15, 2008, 11:10:52 AM »

I had the caster higher and I'm not sure about that one.  I've continued to tweak this a little bit and it remains to be seen if I can get a faster lap.  I'm just about out of time because my weekend is looking pretty busy.
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aka Kyuzo on FM.net

Exodus Racing
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« Reply #10 on: February 15, 2008, 11:33:41 AM »

Yeah, same here, i'm heading out on vacation on saturday, till monday. 
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fndrbndr
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« Reply #11 on: February 15, 2008, 03:28:54 PM »

Me too, Snyder.  I'm heading to Chattanooga, a little quality time with the family to celebrate belated birthdays.  Anyway, to all involved, have a good weekend.
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GT  = Fndrbndr79
Objects in rear view mirror are losing.
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