Norwood

[Sieg]

The...................is OVER!

Originally Posted by makoshark

SHE'S ALIVE!!!!!

Glad to hear you finally got it fired up. I think I would have shot the motor long ago. Congrats on getting her done and your patience through it all.

Thank you!

Originally Posted by Ron in SoCal

Way to go Sieg! You know it's always something simple, finding it is the hard part

Thanks Ron.

Originally Posted by waynieZ

SWEET ! Glad to see and hear it up and running!

Varoom vroom!

Originally Posted by GregWeld

DUDE! That was like giving birth to a 16 pound BREECH baby!

........and it didn't grenade in the 30 minute break-in, no leaks, NO FIRES! Throttle response feels good looking forward to seeing what the heads, intake, and carb upgrade feel like. Too bad the fire kept me from the "before" dyno session I had planned. But I don't need a sheet of paper to tell me it's better or worse.

Originally Posted by intocarss

A fricken ground...........old school old fart discounted how sensitive modern electronics are.........if it was an LS it might have taken this idiot a year.

I set the ignition at 12* for break-in and richened the air circuit and idle mixuture screws. It almost hit a peak of 190* and oil pressure at 2K was 38 psi.



After the run in I set the idle at 950ish and initial at 16* and shut it down without any run on. 16* intial gives me a total of 41* at 3,750.

No discoloration on the new Doug's Headers either!

[intocarss]

CONGRATS and happy for you.. Now have some Cool Whip!!

[Sieg]

Originally Posted by intocarss

CONGRATS and happy for you.. Now have some Cool Whip!!

Just for you JerDawg

[intocarss]

Originally Posted by Sieg

Just for you JerDawg

[cencalc6]

Congrats,The new engine sounds really nice.

[Sieg]

Originally Posted by cencalc6

Congrats,The new engine sounds really nice.

Thanks! I was so glad to hear it fire on all cylinders that the rest was just a bonus! LOL

[Sieg]

Timing is now set at 12* for 37* total. Cleaned up some wire routing and it will be picked up this evening and back to the shop for completion.

Also spoke with MSD Tech regarding the Blaster SS coil mounts, he said the failures are typically due to over tightening the mounts. Snug with Loctite is the proper solution..........supposedly.

Now I get to spend the afternoon sorting and itemizing receipts for the insurance vs. owner obligations.

[GregWeld]

Originally Posted by Sieg

After the run in I set the idle at 950ish and initial at 16* and shut it down without any run on. 16* intial gives me a total of 41* at 3,750.

That's too much timing IMHO for a small block with good heads.... With the 18* stop bushing - I'd set it for 36* of total with 18* of initial.

Of course the old drag way of doing this would be to read the plug strap and see if the discoloration changes right in the center of the bend of the strap...

Todays head designs need less total timing - and todays gas also like less timing.... Of course the only real way to know what it "wants" is a dyno... and timing is far more important for performance than A/F ratios.

[ccracin]

Originally Posted by GregWeld

That's too much timing IMHO for a small block with good heads.... With the 18* stop bushing - I'd set it for 36* of total with 18* of initial.

Of course the old drag way of doing this would be to read the plug strap and see if the discoloration changes right in the center of the bend of the strap...

Todays head designs need less total timing - and todays gas also like less timing.... Of course the only real way to know what it "wants" is a dyno... and timing is far more important for performance than A/F ratios.

I agree with Greg here buddy! When we ran our circle track engines on the dyno, they loved 40*. That was with 043 Cast Iron BowTie heads and 10.5:1. As soon as we tested a better set of aluminum heads on the same short block and cam we were down to 38* total. I think all you are doing now is making heat. Glad to hear it singing! Congrats!

[Sieg]

Thanks guys.

My unknown is the compression ratio....I'm guessing it dropped some with the AFR heads as they are the larger chamber but have been decked. My plan is to pay close attention to how the motor sounds and feels, check plug readings, and figure out by traditional means what is too much timing.

With the lumpy cam the motor seemed to settle in to a comfort zone at 14-16* initial and it shut down without a hint of run-on. Once I get the exhaust hooked up and can tinker with it some who knows on total timing and curve rate until I can put a load on it. 12* intial 36-37* total is the SBC benchmark based on this MSD video but that motor also had 10.5:1 comp and if I'm lucky I'm at 9.5:1.

Factoring the lumpy cam, modern fuel, and lower compression don't you think I can be a little more aggressive with timing and not melt it down?

I'm guessing one of these combo's 12+21=33 - 14+21=35 - 16+21=37 - 12+25=37 - 14+25=39. I'll play it by feel and ear to see what it likes for initial with closed exhaust and go from there to find this motor's sweet spots.........make sense?