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| New engine rebuild timing Q https://slantsix.org/forum/viewtopic.php?t=62485 |
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| Author: | sandy in BC [ Tue Jul 10, 2018 9:32 am ] |
| Post subject: | Re: New engine rebuild timing Q |
Im glad you got there. It will only take half as long next time. May the Gods of Good Gas Mileage and High Performance smile upon you on restart. |
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| Author: | Dart270 [ Tue Jul 10, 2018 11:42 am ] |
| Post subject: | Re: New engine rebuild timing Q |
Great news! That should run like stink. Lou |
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| Author: | drgonzo [ Tue Jul 10, 2018 2:15 pm ] |
| Post subject: | Re: New engine rebuild timing Q |
Great news. Let us know how it runs! |
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| Author: | wjajr [ Wed Jul 11, 2018 11:18 am ] |
| Post subject: | Re: New engine rebuild timing Q |
I got the engine buttoned up, reset cold lash from 0.012" I & E per cam card, to 0.014" cold, and radiator trans lines etc installed about an hour ago. I'll mess with a hot lash after rolling on some miles. Cranked her over a few seconds to fill carb, and it started right up, idled about 1200 rpm without hoofing throttle. As it warmed up, and checking & topping off trans fluid idle increased. After I installed harmonic balance I checked timing mark at TDC, it was zero per timing tab, static timing was at +10*. Engine acted much better, would idle down to 900 rpm, showing 10"Hg @ 1200 rpm 12-13Hg Re tuned idle air, advanced static timing to 14*, set idle at 1000 RPM, went for a short ride on our privet road; my inspection sticker ran out last month, and hood is still off. Its running on 93 straight ethanol free gas. Exhaust smells much better at idle than before engine rebuild, no more rich stink. Low end power is not what I expected, still kind of lazy but better than before rebuild. Over 2000 rpm it starts to come alive, and once secondaries open it pulls hard. I let trans auto shift at 4000 rpm; only have about 5 miles on it. Over all is a better driving car than before. |
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| Author: | sandy in BC [ Wed Jul 11, 2018 12:40 pm ] |
| Post subject: | Re: New engine rebuild timing Q |
Cool! The rest will be less traumatic. mebbe cam timing adjustment will perk up your low end.... |
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| Author: | drgonzo [ Wed Jul 11, 2018 6:02 pm ] |
| Post subject: | Re: New engine rebuild timing Q |
Awesome progress! Do you have a high stall converter? What axle gears? I have a similar cam in my engine still on the stand. |
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| Author: | wjajr [ Thu Jul 12, 2018 9:15 am ] |
| Post subject: | Re: New engine rebuild timing Q |
Ported head, over sized valves, Clifford 4V intake, recurved distributor, 9.6:1 compression, Holley 390 4v, Clifford headers, 2400rpm stall converter, 3.55:1 8 3/4 suregrip, and 24.5" tall tires. |
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| Author: | drgonzo [ Thu Jul 12, 2018 10:46 am ] |
| Post subject: | Re: New engine rebuild timing Q |
Quote: Ported head, over sized valves, Clifford 4V intake, recurved distributor, 9.6:1 compression, Holley 390 4v, Clifford headers, 2400rpm stall converter, 3.55:1 8 3/4 suregrip, and 24.5" tall tires.
Thanks. Sounds like it should get up and go.
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| Author: | wjajr [ Thu Jul 12, 2018 1:32 pm ] |
| Post subject: | Re: New engine rebuild timing Q |
For a street slant it is several notches above off the showroom floor factory performance level in 1967, but when I want to haul butt, I hop in the 300C; an old-man's car... Well, Iv'e been told that anyway. |
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