Few Questions about SM

[Alan]

The book states that anything can be done to the suspension, as long as it retains the factory mounts. I'm looking into a true coil-over setup for the rear. It retains the stock factory mounts for the shock, but the stock spring mounts are not used since they would be mounted to the shock. Is this going to throw me out of SM? Am I stuck with a sudo-coilover setup (real coilovers up front, height adjustable springs out back) if I want to stay in SM?

[Alan]

Here is a picture of the rear suspension to help visualize what I am talking about. This is the exact adjustable spring setup that I am currently running. As you can see if I went with a coil-over setup in the back, I would not be using the stock spring mounts.

http://www.geocities.com/cablesrv/rear_springs_swaybar.txt

[Leonard]

The springs aren't mounted (held by a fastener). They sit in a perch and are held in place by the weight of a car. (at least, that's the way I see it, because I have the same dilemma in the front and back with coilovers. And if it puts me in CP, so be it. I'll do the full kmember then too!)

[138MustangGT]

the Coilovers in the manner you describe (being true coilovers) on the rear are perfectly legal in SM.

Yes, you both can do it legally AFAIK. I've checked into it before and I am pretty sure you can even do it in SP classes.

[Alan]

Thanks for the info guys. :D

[BIG_Truck_Driver]

Are roll cages/bars allowed in SM?

[RainmanEK]

i am pretty sure that roll bars are allowed, i have a 4pt coming soon hopefully i will still be in street mod? eric

[Leonard]

Originally posted by "speed_daemon1"

Are roll cages/bars allowed in SM?

Cages/Bars are permitted in all classes as they are considered safety equipment. Chassis stiffening is a secondary effect.

[Alan]

Cages are such a safety risk and a hastle for a car used primarily for the street. Not only is it a bitch to get in and out of the car (which may not be the case for your 4-point), but they are really unsafe if you aren't using a helmet. Any bad accident could propel your melon into the cage. Even with padding you could still "split yo wig" and get a concussion, severe head trauma, or die. That is the one thing that makes me semi-uncomfortable driving the Mustang around. The two forwards points in my 4-point run right by my head...if someone hits me hard from the side, my head is going straight into it. :o

[BIG_Truck_Driver]

Originally posted by "phatstang1"

Cages are such a safety risk and a hastle for a car used primarily for the street. Not only is it a bitch to get in and out of the car (which may not be the case for your 4-point), but they are really unsafe if you aren't using a helmet. Any bad accident could propel your melon into the cage. Even with padding you could still "split yo wig" and get a concussion, severe head trauma, or die. That is the one thing that makes me semi-uncomfortable driving the Mustang around. The two forwards points in my 4-point run right by my head...if someone hits me hard from the side, my head is going straight into it. :o

But if you were to roll that car you'd be better off with the cage.
And if you were hit from the side, yes you could split your head on it, but you could do the same thing on the sun visor or door frame, but with the cage there the car that hits you will not penetrate as far into your vehicle.

I'd feel safer with a cage.

[PseudoRealityX]

my opinion is that if you want a cage in your street car, you better have a FIA approved seat, and harness as well.

For autocross, cages are useless IMO...too much damn weight

[138MustangGT]

Jesse you're just mad you don't have a car fast enough to need a cage.

and oh wait... i don't even have a car!

I just PWNED ME!

[BIG_Truck_Driver]

Originally posted by "PseudoRealityX"

my opinion is that if you want a cage in your street car, you better have a FIA approved seat, and harness as well.

For autocross, cages are useless IMO...too much damn weight

Been contemplating more than autox, and yes a seat, harness, and wheel would be going along with that, besides I'm broke as hell so it's all just pipe dreams.

[Leonard]

Yeah, and if you're gonna use a harness, you damned well better have a cage.....

[BIG_Truck_Driver]

So, If I were to build an SM2 car and went to an event and there was no one in my class there, what class would I bump to?

[0HP930]

I think you get bumped to the class that has the closest PAX number (since they assume that means the classes are similar in performance).

I think CP is the closest to SM2, but don't take my word on this cause I'm just guestimating.

[PseudoRealityX]

Originally posted by "400HP930"

I think you get bumped to the class that has the closest PAX number (since they assume that means the classes are similar in performance).

I think CP is the closest to SM2, but don't take my word on this cause I'm just guestimating.

As of right now, because SM2 is still a provisional class, the SCCA can kinda *bump* it to wherever it wants or see's fit. As soon as it becomes a REAL class, the bump order in the Rulebook will be updated.

This happened with STX a couple times this year at National events. They keep changing where it bumps to.

[RainmanEK]

sm is for the badass's!!!! eric

[Alan]

Originally posted by "RainmanEK"

sm is for the badass's!!!! eric

So then what the hell am I doing in SM? :o :lol:

[Leonard]

Originally posted by "phatstang1"

sm is for the badass's!!!! eric

So then what the hell am I doing in SM? :o :lol:


and for dumbasses like me who put subframes on their car without checking the class requirements.... (i still would have done them.... )

[BIG_Truck_Driver]

very OT but I got my stickers in for the next time I get my car out to autox, here's a sample

[shadowboy]

Originally posted by "speed_daemon1"

Cages are such a safety risk and a hastle for a car used primarily for the street. Not only is it a bitch to get in and out of the car (which may not be the case for your 4-point), but they are really unsafe if you aren't using a helmet. Any bad accident could propel your melon into the cage. Even with padding you could still "split yo wig" and get a concussion, severe head trauma, or die. That is the one thing that makes me semi-uncomfortable driving the Mustang around. The two forwards points in my 4-point run right by my head...if someone hits me hard from the side, my head is going straight into it. :o

But if you were to roll that car you'd be better off with the cage.
And if you were hit from the side, yes you could split your head on it, but you could do the same thing on the sun visor or door frame, but with the cage there the car that hits you will not penetrate as far into your vehicle.

I'd feel safer with a cage.

yes, but due to the stiffness that the cage provides, the collision will become more elastic, transmitting more energy to the occupants of the car, increasing the likelyhood that you will be thrown about and tossed in a collision (remember, energy spent deforming your car is energy not spent deforming YOU)

[BIG_Truck_Driver]

Originally posted by "shadowboy"

Cages are such a safety risk and a hastle for a car used primarily for the street. Not only is it a bitch to get in and out of the car (which may not be the case for your 4-point), but they are really unsafe if you aren't using a helmet. Any bad accident could propel your melon into the cage. Even with padding you could still "split yo wig" and get a concussion, severe head trauma, or die. That is the one thing that makes me semi-uncomfortable driving the Mustang around. The two forwards points in my 4-point run right by my head...if someone hits me hard from the side, my head is going straight into it. :o

But if you were to roll that car you'd be better off with the cage.
And if you were hit from the side, yes you could split your head on it, but you could do the same thing on the sun visor or door frame, but with the cage there the car that hits you will not penetrate as far into your vehicle.

I'd feel safer with a cage.

yes, but due to the stiffness that the cage provides, the collision will become more elastic, transmitting more energy to the occupants of the car, increasing the likelyhood that you will be thrown about and tossed in a collision (remember, energy spent deforming your car is energy not spent deforming YOU)

I am well aware of Crumple zone theories and the physics involved in accidents. if there is only 3 or 4 inches between you and the outside of the car, there really isn't a crumple zone.

[shadowboy]

Originally posted by "speed_daemon1"

Cages are such a safety risk and a hastle for a car used primarily for the street. Not only is it a bitch to get in and out of the car (which may not be the case for your 4-point), but they are really unsafe if you aren't using a helmet. Any bad accident could propel your melon into the cage. Even with padding you could still "split yo wig" and get a concussion, severe head trauma, or die. That is the one thing that makes me semi-uncomfortable driving the Mustang around. The two forwards points in my 4-point run right by my head...if someone hits me hard from the side, my head is going straight into it. :o

But if you were to roll that car you'd be better off with the cage.
And if you were hit from the side, yes you could split your head on it, but you could do the same thing on the sun visor or door frame, but with the cage there the car that hits you will not penetrate as far into your vehicle.

I'd feel safer with a cage.

yes, but due to the stiffness that the cage provides, the collision will become more elastic, transmitting more energy to the occupants of the car, increasing the likelyhood that you will be thrown about and tossed in a collision (remember, energy spent deforming your car is energy not spent deforming YOU)

I am well aware of Crumple zone theories and the physics involved in accidents. if there is only 3 or 4 inches between you and the outside of the car, there really isn't a crumple zone.

well.. 3 or 4 inches of crumple is FAR preferable to hitting a bar of chromoly steel and sending your car in motion (and due to inertia, sending your head sideways, relative to the car--and into said bar of chromoly steel

the energy deforming the sheet metal forming will at least spread as the door goes inward.