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#1
06-14-2012, 11:12 PM
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TCS switch
Was wondering if all 70's came with the tcs switch or was it an early/late thing?
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#2
06-15-2012, 03:59 AM
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All 1970-74 Pontiacīs, except 1971 455H.O., uses the TCS/SCS system.
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#3
06-15-2012, 10:48 AM
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My 09E 70 came with it.
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Jason |
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#4
06-15-2012, 09:59 PM
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Got it, thanks. Just confirms my thoughts.
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#5
06-18-2012, 06:21 AM
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I have an 08B and it has it. TCS is emissions related, I think emissions is always model year specific.
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"Having a 10 second Civic must be just like coming out of the closet; you'll surprise some people, but you're still gay" 1970 GTO, 455+.034", 0 deck, Wiseco's, Eagle rods, 60919, Rhoads, E-Heads, 1.65 Scorpions, RPM, Custom Qjet by Cliff, Doug's 1 7/8", THM 400, Gear Vendors OD, 3.55s.........Her name is Blandorf; after a girl I knew once, 'cause she's just Bitchin, always. |
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#6
06-18-2012, 04:19 PM
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Yes, the TCS system is emission related, and so is the ported vacuum source for the distributor on earlier carbs.
And as whe know, a ported source for the vacuum advance is helpful with a hotter than standard camshaft, and the TCS may be used the same way. No weak fluctuating vacuum at idle with a hot camshaft disturbing the ignition timing, still full functional vacuum ignition advance while driving. Sometimes the emission devices works for you and your engine! |
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