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Old Jan 9, 2007 | 09:12 PM
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Car: 87 IROC-Z
Engine: LsX
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tpi timing

i need to adjust my timing.. what is it ?? 5.7 l98 tpi
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Old Jan 9, 2007 | 10:32 PM
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From: Houston, Texas
Car: 88' IROCZ
Engine: 388 TPI Motown 350 Race block
Transmission: 700R4
Axle/Gears: 2.77
Originally Posted by TPI TERR
i need to adjust my timing.. what is it ?? 5.7 l98 tpi
When I had the stock '88 IROC 350 5.7L is was 6°, book shows that for 84-90 multiport fuel injection. There should be a sticker on the under side of the hood, yours could be different.
; don't forget to disconnect the Set Timing Connector and reconnect it when you're done.
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Old Jan 9, 2007 | 10:48 PM
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
yeah .. i dont have one of those stickers and the book doesnt show it it.. there is two plugs on the distributor.. not sure which one i have to disconect.. teh readon im doing this is because installed a timing control adjuster form msd.. and im not sure if its gettin the job done.. so i have to bring out the timing gun and see if its retarding or advancing..
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Old Jan 9, 2007 | 11:18 PM
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From: Macedonia ,OH
Car: Formula
Engine: 6.0 LSX
Transmission: 4L60E
Axle/Gears: 9 Bolt 3:27
it is 6*. Dont disconnect the two connectors by the dis. it'll never start. you need to disconnect the tan pigtail wire on the passenger side strut mount area. located in the loom. Its around the blower motor area.
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Old Jan 9, 2007 | 11:56 PM
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From: So Cal
Car: 87 IROC-Z
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Transmission: MN12 6speed
Axle/Gears: 3:42
so turn on the car and disconnect that tan wire.. .. i think i can get away with all this just by adjustin the **** on the MSD adjustable timing control .. this is what is causing me to do all this.. so i just need to see if its actually workin .. i never really took out the distributor to retard it .. just configuration with this box...
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Old Jan 10, 2007 | 05:10 PM
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From: Macedonia ,OH
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Engine: 6.0 LSX
Transmission: 4L60E
Axle/Gears: 9 Bolt 3:27
You want to set the timing control to 0. Then go under the hood, disconnect wire, then start up and put the Dis at 0. After that turn car off, connect wire, fire it up and move the **** to 6. All set then.
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Old Jan 11, 2007 | 06:33 PM
  #7  
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From: Long Island
Car: 1985 Trans Am/ Recaro w/webbed headrests (AS5)?
Engine: Code F
Transmission: 700, shame, ain't it?
Axle/Gears: 3.27 Borg-Warner posi
Don't forget...

Disconnection of the tan wire throws up an engine code...
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Old Jan 12, 2007 | 08:19 PM
  #8  
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From: 'Bama
Car: '89 IROC-Z
Engine: StealthRam 355
Transmission: 6-speed
Axle/Gears: 3.70 9-bolt
Very perceptive. The code is being thrown because the ECM figured out it can't control the timing with that wire unhooked. It'll clear when you restart the car with the wire connected.

Mkos has the procedure right.
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Old Jan 16, 2007 | 12:23 PM
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From: So Cal
Car: 87 IROC-Z
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Transmission: MN12 6speed
Axle/Gears: 3:42
i couldnt find that wire.. iguess it didnt want me to fix the car
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Old Jan 16, 2007 | 04:38 PM
  #10  
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From: Houston, Texas
Car: 88' IROCZ
Engine: 388 TPI Motown 350 Race block
Transmission: 700R4
Axle/Gears: 2.77
Originally Posted by TPI TERR
i couldnt find that wire.. iguess it didnt want me to fix the car
Maybe this will help, Connector at center of photo.

Attachment 130424
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Old Jan 18, 2007 | 01:56 PM
  #11  
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From: Dallas, Texas
Car: '88 GTA
Engine: L98 -350TPI
how exactly do you set the dist. to 0? or 6?... where are the degree marks on the dist?
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Old Jan 18, 2007 | 02:55 PM
  #12  
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you dont set the distributor to a degree, you turn the distributor till the marks on the balancer/crank pulley show whatever degrees you want with the aid of a timing light.

6 degrees is stock base timing... some cars like 8-10 tho
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