Why are the exhausts covered?

Most of the cars I see (including mine) have tin caps to go over the zoomies when they aren't running. Why is this done?

-Scouder

 

I have a FED, and we cover them so rocks/debris don't come off the tires, and down the pipes. One reason is if the exhaust valve is open, it can make its way into the cylinder, the main reason is, ever see how far a rock flys when you start the motor and launch it into orbit?

 

Now thats some funny stuff.

-Scouder

 

We used to put tennis balls in the boat zoomies,
must have lost several dozen of them!

 

We sand drag and the reasons are obvious. Its funny not much if any sand gets on anything during the run, but the tow back puts sand on everything behind the driver.

 

Mike you are rite!!! very ..well a bummer>> one race we forgot and up they went and down on a new ford pickup...mine..also the covers work to not let cool air back into the valves..Dave

 

well they can make your car go across scales with out trouble from officals if they weigh right?

 

SSSSHHHHH!! You mean those 80 lb covers we have in lead are not legal?

 

covers

How about, so cold air does not go down the zoomie and warp a valve when they are hot?

 

Aw, the flying zoomie cover show. i've done it a few times....pretty embarassing.

I thought i was the only one that did it, until CHRR. I saw two other teams do it, so i'm glad i have friends in the clubhouse.

 

why

Why would you want to do that?

 

i do it so the magic dosnt all escape out.........

 

I do it to hide that pretty white color in the pipes, I hate when the owner starts saying stuff about pistons being expensive between rounds, thats Monday talk. I wonder what the forgotten zoomie cover distance record is? Ha Ha. Mine can't be to far off.

 

I fired mine in the pits @ Bakersfield this year, and had to get on the trailer to retrieve one of them

 

Greg,Guess we'll not be pitting next to you any more.ha ha.

 

My bad. I imagine there are a lot more than one reason to not pit next to me.

Are you going to ANRA?

 

Yes,Are you? If so,come buy and say hello. We haven't blown the covers off YET but have come real close. Just a mater of time i suppose.

 

I am thinking of driving down Sunday for elim's. $ is a tad tight to drag the car down.