Scatter shield.....needed?

[Jonny Hotnuts]

I was told by an official that because I am using a motorcycle motor in a car that I did not have to have a scatter shield.....even though the rule book clearly states that every cars with transmissions shall have a ballistic blanket or approved shield.

So do guys running bike motors not have to have a transmission/clutch shield?
Just wanted to make sure before it gets too late!

-JH

[JackD]

Think about the bike motor in the original frame with the rider wrapped around it.
Now consider how they fail and the result is........

[Stainless1]

Never been an issue for us.  Is your clutch and tranny in close proximity to the driver? No, us too ... 
Gimme a grammar check on that will ya SSS 

[Seldom Seen Slim]

Try "are your clutch and tranny..."  As for "No, us too"  HUNH?  I don't know what your were trying to do, other than to give me a hard time.  Must be that photo of Nancy has me all farkled up.

[Harold Bettes]

If nothing else, consider what IF parts do exit said clutch and tranny house.

Might just ruin your day, not to mention one or more of your high dollar spiffy tires on the way to glory.

Sometimes can be anytime.

Regards to All,
HB2

[Stainless1]

Dang SSS, ya caught me... 

[Jonny Hotnuts]

I understand the safety implications of a scatter shield but there is also a certain amount of problems with trying to install something like this on a bike motor.

I have a 1/4 aluminum plate separating the motor bay with the drivers compartment.....in addition to the firewall for the sole purpose of containing flying parts.

THe problems is that a bike motor by design has everything in a small package and there is no real practical way to install a wrap around ballistic blanket or clutch cover.

I just want to know if teck guy A will have a problem because of what it says it the book, if teck guy b says its ok.

[RichFox]

I would like to know what some people who have home made scatter shields are doing about the retention requirement in the '07 rules. Early flathead Ford and other such motors with cast on bellhousings. My old blow shield should keep parts away from me, but then they will fall on the course.

[JackD]

The fact that you have never seen a clutch scatter shield on a bike motored vehicle is a product of how they are made in comparison to a strictly automotive type.
Open drive guard yes, but clutch scatter shields no.
The HD type is perhaps the closest design to that used on a car but they tend to fail the crank or jug to block attachment first.
Drag racing puts a lot more clutch shock that results in failures than LSR bikes and they have had no problem.
Certain classes require ballistic protection for the rider, but it is mostly for blower and cylinder protection.

[Sumner]

I was told by an official that because I am using a motorcycle motor in a car that I did not have to have a scatter shield.....even though the rule book clearly states that every cars with transmissions shall have a ballistic blanket or approved shield.

So do guys running bike motors not have to have a transmission/clutch shield?
Just wanted to make sure before it gets too late!

-JH

JH the rule I read, 3.H TRANSMISSION SHIELDS says

All cars with automatic or planetary type transmissions shall be equipped with a ballistic transmission blanket or approved shield.  It is recommended that the transmission blanket/shield meet SFI SPECIFICATION 4.1

I don't see anyway that you need one with your transmission type.

c ya,

Sum

[tortoise]

JH the rule I read, 3.H TRANSMISSION SHIELDS says

All cars with automatic or planetary type transmissions shall be equipped with a ballistic transmission blanket or approved shield.  It is recommended that the transmission blanket/shield meet SFI SPECIFICATION 4.1

I don't see anyway that you need one with your transmission type.

c ya,

Sum

See section 3.O, Sum.

[Sumner]

JH the rule I read, 3.H TRANSMISSION SHIELDS says

All cars with automatic or planetary type transmissions shall be equipped with a ballistic transmission blanket or approved shield.  It is recommended that the transmission blanket/shield meet SFI SPECIFICATION 4.1

I don't see anyway that you need one with your transmission type.

c ya,

Sum

See section 3.O, Sum.

Oops didn't get that far yet  . 

But after reading that I would still question the rule applying to a bike motor.  The rule is:

3.0 Flywheels, Flywheel Shields and Bell Housings:

Can you find those on most bike motors??

Sum

[jimmy six]

I'm definitely not the final judgment but when a M/C engine is put into a 4 wheel vehicle it is no longer a M/C.

At this time many are already doing this including Rick Yacoucci and I can't remember what he does other than the engine is in the chassis the same way it is in the liner. I would be more concerned with what would happen IF something catastrophic did occur.

Is it sideways or inline? What lines could be severed during a major catastrophy. case  breakage (engine/trans)

I would contact him or the Linguas, etc and ask.  Always protect the important lines: fuel, oil, brakes, parachute, etc....

Good Luck

[dwarner]

Current practice does not require a scatter shield/blanket as mentioned in the rulebook. This would be different if car engines were allowed in a motorcycle chassis. Yes, I know about the Big Dog line of small block bikes, not allowed.

DW

[Stainless1]

You have no bell housing, but Jimmy6 has a couple of really good points... we replaced all fuel lines with stainless braid lines.
We have had t least 8, maybe 10, catastrophic failures, so far, 2 rodbolts have exited the motor via their own windows, and even the 2 times that a rod cut the motors in half, the case pieces were all that we found in the bottom of the car.  Did I mention the motors were still running....    Those bike motors are tough pieces, remember guys, in a lot of bikes, the motor is structural... 
Looking forward to seeing your car, you should post a few pictures.