C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

85 chip

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Old Oct 26, 2010 | 02:17 PM
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Default 85 chip

Hi guys. I have tried going through old posts but I still don't have an answer.I have an 85 auto that I put a 383 into.280 HR comp cam,10.9 cr, 2800 stall,twisted wedge heads, big tube runners and high flow manifold I think accel, 58mm TB, 30 pound Ford red tops,ported plenum,full headers and no cat.I'm just about finished accept for the chip.I know I need a tuner but I want to start the car and see if it runs.I would like to buy a mail order tune. I don't want to do it myself and I don't want to change the ecm.Who the heck do I get it from? Thanks so much.
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Old Oct 26, 2010 | 06:13 PM
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Problem is I don't know of any commercial outfit that is doing tunes on the one year only '85 ECM
Very little support for it out there which is why guys are converting to the '86- '89 ECM
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Old Oct 27, 2010 | 07:46 AM
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TPIS will make you a mail order chip for an 85.
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Old Oct 27, 2010 | 02:08 PM
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Thank you. I just checked out the site.Could anybody tell me what the broadcast code is?
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Old Oct 27, 2010 | 06:29 PM
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The broadcast code or BCC is the 4 letter code written on the chip that indicates what the tune or bin is. An example of a bin is an ARAP bin which is typically found on an 89. Don't know what the bins are on an 85. The ecm in an 85 is Part Number
1985 – 1226870.

Last edited by Lemme; Oct 27, 2010 at 10:42 PM.
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