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Driver's License Owner
Join Date: Feb 2004
Location: Hendersonville, NC USA
Posts: 442
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Timing for first start after rebuild
Hi folks,
About ready to start up my rebuilt '77. I am trying to determine the timing I should be looking for at idle. I won't be able to check the total advance timing until I can hit the higher 6,000 rpm revs after breaking the engine in. Specs for the rebuild are: 2.8L using JE 9.5 compression pistons MSD box w/MSD Blaster Coil Pertronix Ignitor in dizzy Cam reground to "E" profile PMO 40 carbs The original "E" cars called for 5 degrees ATDC at 900 rpm. The stock 1977 2.7 engine with CIS called for TDC +/- 2 degrees. What would you recommend given my mods for a starting idle timing? 
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Thanks -- Chuck 1977 911S Backdate Street/Track, 1970 911T, '70 Triumph GT6+ Vintage Racer Project, '60 MGA Restomod/tribute, Cayman R, 1967 Moto Guzzi V700 |
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12-01-2022, 10:32 AM
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Registered
Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,431
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TDC is good.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
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12-01-2022, 10:59 AM
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Driver's License Owner
Join Date: Feb 2004
Location: Hendersonville, NC USA
Posts: 442
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Thanks - great to have a quick response from a known legit authority!!
__________________
Thanks -- Chuck 1977 911S Backdate Street/Track, 1970 911T, '70 Triumph GT6+ Vintage Racer Project, '60 MGA Restomod/tribute, Cayman R, 1967 Moto Guzzi V700 |
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12-01-2022, 11:01 AM
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Registered
Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,431
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It may end up at +5 or more, depending what you decide for total advance.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
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12-01-2022, 12:06 PM
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