The Silver Buick's well Silver Buick!

[TheSilverBuick]

Full engine assembly can begin now! The new roller cam showed up today as well as a new gear reduction starter that will hopefully keep heat soak at bay.

[Deaf Bob]

Full engine assembly can begin now! The new roller cam showed up today as well as a new gear reduction starter that will hopefully keep heat soak at bay.

It should.. We use those same starters in our derby cars.. They take heat well, but do not like long cranks nor misalignment

[squirrel]

neat! the starter is not gear reduction, but it does look lightweight...probably a permanent magnet design. Pretty similar looking to the one I have in my 55, which is from a 99 chevy pickup.

[TheSilverBuick]

I was under the impression it was, but as long as it works as advertised. It definitely weighs a fraction of the OE starter.

[squirrel]

Gear reduction starters have an extra gearset inside, so the main motor housing is not in line with the drive gear that meshes with the flywheel. Not a big deal.

[TheSilverBuick]

I was under the impression it had a set of planetary gears in the casing rather than side by side gearing.

[squirrel]

Turns out I'm wrong...not surprising, since I don't mess with late models very much. It is a gear reduction starter, but it uses a planetary gearset, so all the shafts are in line.

Thanks again for the education

[TheSilverBuick]

Whoa!! I am I generally don't expect myself to be right compared to your knowledge. Its always good to learn something new though

[DanStokes]

A little tidbit of automotive history, which I believe to be accurate. I got this from a former Chrysler engineer at Chelsea who had moved on to buy and operate the Chrysler-Plymouth dealership in Milford, MI.

In the late 50's Chrysler had a terrible reputation for not starting. They decided they better fix that or no one would ever buy their cars (good bet). So they put together a task force and concentrated a ton of engineering talent on the issue. That's when they developed those beige distributor caps, the alternator, and the gear drive starter among other refinements. Their research found that how long a car was cranked was a better indicator of starting than how fast, hence the gear drive. The other manufacturers downplayed the device but of course virtually all of the car companies now use them.

Jim was right - years ago. Now there are a couple of different methods to get the gears in there.

Dan

[TheSilverBuick]

Installed the cam yesterday, degree'd it properly today, sticking it at 110º ICL. Piston to valve clearance is a non-issue. Bolted the heads down, as well as installed the timing cover and oil pan, then poured 3 quarts of oil in and primed the system until I had oil coming from all the roller rocker tips and to top it off the equalization line doesn't appear to leak Just a few more parts to clean up, paint and bolt on. I really need to get to work on the car itself now.

[Scott Liggett]

So, is this the 25 mpg cam, or the 10 sec 1/4 mile cam?

[William Wilson]

So, is this the 25 mpg cam, or the 10 sec 1/4 mile cam?

It's a Buick why can't it be both?

[DanStokes]

Looks pretty, Randal! Maybe someday........

Dan

[TheSilverBuick]

So, is this the 25 mpg cam, or the 10 sec 1/4 mile cam?

It's a Buick why can't it be both?

Both!

Reined in the duration by a fair amount, bumped the lift by a fair amount and widened the LSA by a fair amount.

These are the dyno sheets of the engine I'm trying to copy which the build intent was low-end torque and mpg's (for cross country travel towing a trailer), though it's hard to say what the little changes will add up to. This engine was a 448cid (bored/stroked 430) versus my 464cid, the heads flow the same (tested on the same flow bench), same compression, same cam, but this dyno used 2" primary tube headers and not turning the water pump on the dyno, it's a TBI injection on a dual plane intake, mine is port injection on a single plane intake, and he had 1.60 rockers and mine are 1.65. And probably a dozen other small differences that a professional builder knows to do.

The tests are running rich because it's using the EZ-EFI auto-tune and may pick up a few HP leaning out even more, but the purpose of the dyno session was to check that the engine was healthy and not leaking fluids, so he didn't want to load the auto-tune with a bunch of dyno pulls so called it good before finding the "best" tune.



Leaned out some.

[hauen]

Gotta love torque engines.