![[Shift light]](icons/shiftlt.jpg){kind=icon}
Shift light
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SS #670 Modifications:
Shift light |
![[Shift light]](images/shiftlight-sm.jpg)
Here is the shift light I installed in SS #670; I used one of
Harlan's shift lights.
The tach on the F-Body is a bit lazy; it's possible to hit the rev
limiter (6200 RPM) with the tach reading 5700 RPM or lower. This
has something to do with the fact that the tach is driven by serial
data from the PCM to the instrument cluster. This combined with
the fact that the engine is still pulling strong at redline makes
it difficult to tell when it's time to shift.
I mounted the shift light in the HVAC vent above the stereo. The five LEDs (mine are yellow) are very bright and difficult to ignore day or night. I originally programmed the shift light for 5900 RPM. However, I found that I would still occasionally brush the rev limiter so I later reset it for 5800 RPM.
I attached the shift light to a small piece of sheet metal using a 1" adel clamp (a metal loop clamp with a rubber cushion) I found at the local hardware store for $0.50. I used two sheet metal screws to mount it in the inside of the air duct. After a few tries I was able to position the light so it was aimed correctly.
![[Exposed view]](images/shiftlight-exp-sm.jpg)
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![[PIC assembly]](images/v2board-sm.jpg)
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| Exposed view | PIC assembly |
Here's a picture the circuit board which consists of a Peripheral Interface Controller (PIC), some dips switches and buttons used to program it and some miscellaneous support components.
I wired the hot side of the shift light to the +12 volt "GAUGES" circuit on the fuse block (fuse 9). I got ground from a convenient sheet metal screw under the dash.
![[SS #670 wiring schematic]](schematics/ss670wiring-v2.png)
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![[Fuse panel]](images/fuse-sm.gif)
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| SS #670 wiring schematic | Fuse usage chart |
Here is a schematic that includes the shift light wiring in PDF format.
On a 2000 Camaro, the tach wire (circuit 121/Engine Speed Output) goes from the PCM to a connector C105. I think taping the tach wire here is easier (and safer) than messing with the PCM connector. C105 is an eight pin weatherpack connector and is the middle of three connectors located on top of the passenger side wheel well.
![[connector C105]](images/c105-sm.gif)
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| connector C105 |
Since I don't have ASR, the dark green wire enters on "G" but does not exit from the matching connector. A quick way of taping in without cutting wires is to disassemble the connector and carefully remove the tach wire. Then solder the new wire to the connector and reassemble.
Note: It is not necessary for the engine to be running during programming.
To read the current number of cylinders programmed, apply power and then press and release button #1. The number of flashes indicates the programmed number of cylinders (or one if using coil per plug mode).
To program the number of cylinders, set the dip switches as shown in the chart, apply power and press and hold button #1 until the light begins to flash rapidly. Release the button and count the number of flashes to check for correct programming.
# cyls 1 2 3 4 5 6 7 2 ON OFF OFF OFF OFF OFF OFF 4 OFF ON OFF OFF OFF OFF OFF 6 OFF OFF ON OFF OFF OFF OFF 8 OFF OFF OFF ON OFF OFF OFF CPP OFF OFF OFF OFF ON OFF OFF
The LS1 uses 4 cylinder mode.
To read the current trigger RPM, apply power and then press and release button #2. The number of flashes indicates the programmed RPM in hundreds. Two numbers are displayed. Zero is represented by two fast flashes. For example, two fast flashes followed by eight flashes would be 800 RPM. Five flashes followed by eight flashes would be 5800 RPM.
To program the trigger RPM, set the dip switches as shown in the chart, apply power and press and hold button #2 until the light begins to flash rapidly. Release the button and count the number of flashes to verify programming.
RPM 1 2 3 4 5 6 7 500 ON OFF ON OFF OFF OFF OFF 600 OFF ON ON OFF OFF OFF OFF 700 ON ON ON OFF OFF OFF OFF 800 OFF OFF OFF ON OFF OFF OFF 900 ON OFF OFF ON OFF OFF OFF 1000 OFF ON OFF ON OFF OFF OFF 1100 ON ON OFF ON OFF OFF OFF 1200 OFF OFF ON ON OFF OFF OFF 1300 ON OFF ON ON OFF OFF OFF 1400 OFF ON ON ON OFF OFF OFF 1500 ON ON ON ON OFF OFF OFF 1600 OFF OFF OFF OFF ON OFF OFF 1700 ON OFF OFF OFF ON OFF OFF 1800 OFF ON OFF OFF ON OFF OFF 1900 ON ON OFF OFF ON OFF OFF 2000 OFF OFF ON OFF ON OFF OFF 2100 ON OFF ON OFF ON OFF OFF 2200 OFF ON ON OFF ON OFF OFF 2300 ON ON ON OFF ON OFF OFF 2400 OFF OFF OFF ON ON OFF OFF 2500 ON OFF OFF ON ON OFF OFF 2600 OFF ON OFF ON ON OFF OFF 2700 ON ON OFF ON ON OFF OFF 2800 OFF OFF ON ON ON OFF OFF 2900 ON OFF ON ON ON OFF OFF 3000 OFF ON ON ON ON OFF OFF 3100 ON ON ON ON ON OFF OFF 3200 OFF OFF OFF OFF OFF ON OFF 3300 ON OFF OFF OFF OFF ON OFF 3400 OFF ON OFF OFF OFF ON OFF 3500 ON ON OFF OFF OFF ON OFF 3600 OFF OFF ON OFF OFF ON OFF 3700 ON OFF ON OFF OFF ON OFF 3800 OFF ON ON OFF OFF ON OFF 3900 ON ON ON OFF OFF ON OFF 4000 OFF OFF OFF ON OFF ON OFF 4100 ON OFF OFF ON OFF ON OFF 4200 OFF ON OFF ON OFF ON OFF 4300 ON ON OFF ON OFF ON OFF 4400 OFF OFF ON ON OFF ON OFF 4500 ON OFF ON ON OFF ON OFF 4600 OFF ON ON ON OFF ON OFF 4700 ON ON ON ON OFF ON OFF 4800 OFF OFF OFF OFF ON ON OFF 4900 ON OFF OFF OFF ON ON OFF 5000 OFF ON OFF OFF ON ON OFF 5100 ON ON OFF OFF ON ON OFF 5200 OFF OFF ON OFF ON ON OFF 5300 ON OFF ON OFF ON ON OFF 5400 OFF ON ON OFF ON ON OFF 5500 ON ON ON OFF ON ON OFF 5600 OFF OFF OFF ON ON ON OFF 5700 ON OFF OFF ON ON ON OFF 5800 OFF ON OFF ON ON ON OFF 5900 ON ON OFF ON ON ON OFF 6000 OFF OFF ON ON ON ON OFF 6100 ON OFF ON ON ON ON OFF 6200 OFF ON ON ON ON ON OFF
RPM 1 2 3 4 5 6 7 6300 ON ON ON ON ON ON OFF 6400 OFF OFF OFF OFF OFF OFF ON 6500 ON OFF OFF OFF OFF OFF ON 6600 OFF ON OFF OFF OFF OFF ON 6700 ON ON OFF OFF OFF OFF ON 6800 OFF OFF ON OFF OFF OFF ON 6900 ON OFF ON OFF OFF OFF ON 7000 OFF ON ON OFF OFF OFF ON 7100 ON ON ON OFF OFF OFF ON 7200 OFF OFF OFF ON OFF OFF ON 7300 ON OFF OFF ON OFF OFF ON 7400 OFF ON OFF ON OFF OFF ON 7500 ON ON OFF ON OFF OFF ON 7600 OFF OFF ON ON OFF OFF ON 7700 ON OFF ON ON OFF OFF ON 7800 OFF ON ON ON OFF OFF ON 7900 ON ON ON ON OFF OFF ON 8000 OFF OFF OFF OFF ON OFF ON 8100 ON OFF OFF OFF ON OFF ON 8200 OFF ON OFF OFF ON OFF ON 8300 ON ON OFF OFF ON OFF ON 8400 OFF OFF ON OFF ON OFF ON 8500 ON OFF ON OFF ON OFF ON 8600 OFF ON ON OFF ON OFF ON 8700 ON ON ON OFF ON OFF ON 8800 OFF OFF OFF ON ON OFF ON 8900 ON OFF OFF ON ON OFF ON 9000 OFF ON OFF ON ON OFF ON 9100 ON ON OFF ON ON OFF ON 9200 OFF OFF ON ON ON OFF ON 9300 ON OFF ON ON ON OFF ON 9400 OFF ON ON ON ON OFF ON 9500 ON ON ON ON ON OFF ON 9600 OFF OFF OFF OFF OFF ON ON 9700 ON OFF OFF OFF OFF ON ON 9800 OFF ON OFF OFF OFF ON ON 9900 ON ON OFF OFF OFF ON ON 10000 OFF OFF ON OFF OFF ON ON 10100 ON OFF ON OFF OFF ON ON 10200 OFF ON ON OFF OFF ON ON 10300 ON ON ON OFF OFF ON ON 10400 OFF OFF OFF ON OFF ON ON 10500 ON OFF OFF ON OFF ON ON 10600 OFF ON OFF ON OFF ON ON 10700 ON ON OFF ON OFF ON ON 10800 OFF OFF ON ON OFF ON ON 10900 ON OFF ON ON OFF ON ON 11000 OFF ON ON ON OFF ON ON 11100 ON ON ON ON OFF ON ON 11200 OFF OFF OFF OFF ON ON ON 11300 ON OFF OFF OFF ON ON ON 11400 OFF ON OFF OFF ON ON ON 11500 ON ON OFF OFF ON ON ON 11600 OFF OFF ON OFF ON ON ON 11700 ON OFF ON OFF ON ON ON 11800 OFF ON ON OFF ON ON ON 11900 ON ON ON OFF ON ON ON 12000 OFF OFF OFF ON ON ON ON
The above chart is not necessary when you notice that the RPM X 100 is encoded in binary; dip switch #1 corresponds to 1, #2 to 2, #3 to 4, #4 to 8, #5 to 16, #6 to 32 and #7 to 64. For example, 5800 RPM is 58 X 100. Since 58 is 2 + 8 + 16 + 32, switches #2, #4, #5 and #6 will be on.
![[SS #670 Home]](icons/ss670.gif){kind=icon} |
![[SS #670 Modifications]](icons/mods.gif){kind=icon} |
![[SS #670 Assorted hacks]](icons/hacks.gif){kind=icon} |
![[SS #670 Pictures]](icons/pics.gif){kind=icon} |
![[SS #670 Movies]](icons/movies.gif){kind=icon} |
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![[SS #670 Drag strip runs]](icons/drag.gif){kind=icon} |
![[SS #670 Gear ratio calculator]](icons/calc.gif){kind=icon} |
![[SS #670 Suggestions]](icons/suggest.gif){kind=icon} |
![[SS #670 Tools]](icons/tools.gif){kind=icon} |
![[SS #670 Oil report]](icons/oilrep.gif){kind=icon} |
![[SS #670 Timeline]](icons/timelin.gif){kind=icon} |
![[SS #670 RPO]](icons/rpo.gif){kind=icon} |
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![[Craig's home page]](icons/craig.gif){kind=icon} |
![[SS #670 The Super Sport Owners Association]](icons/ssoa.gif){kind=icon} |
![[SS #670 Miscellaneous]](icons/misc.gif){kind=icon} |
![[SS #670 EMail Craig]](icons/email.gif){kind=icon} |
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![[SS #670 Mods: Sway bars]](icons/swaybar.gif){kind=icon} |
![[SS #670 Mods: Shocks and struts]](icons/shocks.gif){kind=icon} |
![[SS #670 Mods: Springs]](icons/springs.gif){kind=icon} |
![[SS #670 Mods: Panhard bar]](icons/panhard.gif){kind=icon} |
![[SS #670 Mods: Lower control arms]](icons/lca.gif){kind=icon} |
![[SS #670 Mods: Subframe connectors]](icons/sfc.gif){kind=icon} |
![[SS #670 Mods: Adjustable torque arm]](icons/t-arm.gif){kind=icon} |
![[SS #670 Mods: Differential]](icons/diff.gif){kind=icon} |
![[SS #670 Mods: ZR1 wheels]](icons/zr1.gif){kind=icon} |
![[SS #670 Mods: Shock tower brace]](icons/stb.gif){kind=icon} |
![[SS #670 Mods: Brakes]](icons/brakes.gif){kind=icon} |
![[SS #670 Mods: Hurst billet plus shifter]](icons/shifter.gif){kind=icon} |
![[SS #670 Mods: Heel/Toe throttle extension plate]](icons/heeltoe.gif){kind=icon} |
![[SS #670 Mods: Driveshaft safety loop]](icons/loop.gif){kind=icon} |
![[SS #670 Mods: Radiator]](icons/rad8tr.gif){kind=icon} |
![[SS #670 Mods: Oil cooler]](icons/oilcool.gif){kind=icon} |
![[SS #670 Mods: Clutch]](icons/clutch.gif){kind=icon} |
![[SS #670 Mods: Differential vent tube]](icons/vent.gif){kind=icon} |
![[SS #670 Mods: Shift light]](icons/shiftlt-63.gif){kind=icon} |
![[SS #670 Mods: Air box lid]](icons/airlid.gif){kind=icon} |
![[SS #670 Mods: Polyurethane bushings]](icons/poly.gif){kind=icon} |
![[SS #670 Mods: Auto Meter gauge pod]](icons/gauge.gif){kind=icon} |
![[SS #670 Mods: Disable CAGS]](icons/cags.gif){kind=icon} |
![[SS #670 Mods: Disable daytime running lights]](icons/drl.gif){kind=icon} |
![[SS #670 Mods: EFILive]](icons/efilive.gif){kind=icon} |
![[SS #670 Mods: LS1-edit]](icons/ls1edit.gif){kind=icon} |
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![[SS #670 Mods: Battery]](icons/battery.gif){kind=icon} |
![[SS #670 Mods: Valentine One remote display]](icons/v1.gif){kind=icon} |
![[SS #670 Mods: Headlights]](icons/hdlight.gif){kind=icon} |
![[SS #670 Mods: iPod integration]](icons/ipod.gif){kind=icon} |
![[SS #670 Mods: LEDs]](icons/leds.gif){kind=icon} |
![[SS #670 Mods: Cellular phone]](icons/phone.gif){kind=icon} |
![[SS #670 Mods: Zaino Bros' show car polish]](icons/zaino.gif){kind=icon} |
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Craig Leres