Here is a question for you serious Street Outlaw racers.
How can you win an event if you can't get through 4 rounds of
competition without breaking?
Obviously the answer if "you can't". Breaking parts has always been part
of drag racing. There isn't a part made that a good drag racer can't
eventually break. For instance, we know that a 9" Ford rear end is
stronger than the Ford 8.8" rear end. The 9" is pretty much a standard
on hot Mustang racers. But the Top Fuel dragster racers use a 12" rear
end. They would break the 9" stuff on every run. In drag racing, you
have to upgrade parts so as to minimize breakage for your particular
class and level of performance.
Serious Street Outlaw racers don't mind installing stronger parts if
they feel that the reliability of these parts will offset the added
expense, and usually added weight. You don't see many serious Mustang
racers using the stock 28-spline axles. Most install the heavier
31-spline or even 33-spline axles. It's more weight, but the reliability
factor is worth it.
This "added weight" factor needs to be addressed. Did you know that the
Ford SVO 4-bolt block (Part #: M-6010-A4) is 40 lbs heavier than the
stock thin wall hydraulic roller 302 block? Racers have no problem
accepting this extra weight because they know that the A4 block is much
stronger than the stock block. Stronger means more power potential
without the risk of bottom end failure. Less failure means a better
chance of winning, etc, etc.
When you think about it, "stronger" almost always means "heavier". We
use stronger and heavier components because we have to. No one seems to
have a problem with this fact.
Or do we?
For the last several years, there has been a rumor in the Street Outlaw
ranks about reliability problems associated with the Ford C-4 automatic
transmission. Some of the guys putting out the most power are going
through C-4's at a rapid rate. Of course, not everyone is having C-4
problems. Anthony Briante has no problem with his C-4 and he is running
in the mid 8's in the Pro 5.0 class. But still, there are those that
have been lobbying for inclusion of the Powerglide transmission for the
Street Outlaw class.
The 'Glide is known in drag race circles as a trans that can take plenty
of power and still offer reliability. There are those that think that
the only answer to reliability is with a Powerglide transmission. But
let's examine the situation more closely in Street Outlaw. In this
class, all transmissions must be Ford transmissions and bolt to the
block without an adapter plate. This lets out the 'Glide. The other
point to remember about the Street Outlaw class is the minimum weight
requirements. Cars under 310 cubic inches must weigh 3000 lbs, and over
310 (but under 360 cubes) must weight 3200 lbs.
Given these class weight minimums, adding a little weight to get
stronger and more reliable parts is not a handicap, right? After all, we
would probably have to add some ballast to make the class anyway.
With all this in mind, I am going to throw out an idea that some of you
may want to think about. If you are experiencing reliability problems
with the C-4, why don't you consider using a "small block" C-6 trans?
The C-6 trans has the same gear ratios as the C-4. Trick converters and
trans brakes are just as available for the C-6 as for the C-4. In fact,
all of the same types of internal race parts available for the C-4 are
available for the C-6.
The main difference between the C-4 and the C-6 is that the C-6 is MUCH
stronger. It is also 80 lbs heavier than the C-4, but given the minimum
weight requirements of Street Outlaw and given that "you can't win if
you can't finish", the C-6 may not look like much of a handicap in the
weight department. Just as we accept the increased weight (in the front
of the car) that goes along with the added reliability of the SVO 4-bolt
block, maybe we should use the same logic with the C-6 trans (which is
in the middle of the car).
While doing a little research on the C-4 vs. the C-6, I had a nice talk
with Art Carr, the auto trans guru. Art said that increased C-6
transmission weight is primarily due to the drums and shafts being many
times stronger (and bigger) than the C-4. Sort of a comparison of the
28-spline axle shaft with 33-spline axles.
Art also debunked something that I have heard for over 20 years.
According to Art, the C-6 does not take any more power to "run" than a
C-4 trans. This is an old wives tail. Art said that the power absorption
of the C-6 is the same as the C-4 and also the 'Glide pumps.
Several years ago, Art built a C-6 for Jack Snyder's Pro Mod tube frame
Mustang (the Nevada Highway Patrol car). This car had a 700" big block
making 1400 HP. The C-6 never missed a beat.
Now, I know that most Street Outlaw racers have never considered using
the small block C-6. Maybe they were concerned about the additional
weight. Or maybe they thought that the C-6 would suck up more power than
the C-4. I don't know. But I do know that sooner or later some racer
will check it out.
Some Street Outlaw racers, however, would rather just whine about not
being allowed to run the Powerglide. Oh well.