jay,

thanks for chiming in with a road racing perspective.

I am also considering taking it on the track as well, its just a matter of time, money and training.

If we see the demand is there, then a road racing/autoX forum will be created

 

Of course I am interested in turning. After all, I ride a motorcycle. Half the fun of riding a bike is the turns.

If cars were made to only go in a straight line, they wouldn't have steering wheels. That being said, I don't mean any disrespect to the 1/4 mile crowd.

I'm sure once I get my SC I'll hit the strip to see what kind of time I can pick up but hopefully I can afford to do some autocrossing as well...

 

I LOVE the twisties. Feeling my car pull through a turn is one of the best feelings out there. Heck, my avatar says it all [img]style_emoticons/<#EMO_DIR#>/04.gif[/img]

 

I do autocross in my 05. I have done drag racing as well, but there is way more of a rush from diving into a hairpin and smoking it out of the turn.

I agree it is a great way to become familiar with your car for a "real case" scenario on the street when you have to make a panic manuver for what ever the reason may be.

 

Drag racing is very popular with guys driving automatic cars, they think "heel and toe" is some sort of dance!
Flame Away! [img]style_emoticons/<#EMO_DIR#>/box2.gif[/img]

 

well its my 1/2 day and i just got back from the track.

last wed i ran 25 or so laps with the stock suspension, to get a feel for the upgrades im doing.

today i ran with the sway bars/strut tower brace out of my frpp suspension kit.

im happy to report a nice improvement over the stock bars!!

way easier to set the car, and gives better right foot steering responce. very flat in the corners.
and way less push(understeer) when pushed hard.

i had the front bar set in the middle position( of 3) that they say to use on the street, i forgot my wrench so, as of now, i cant say how much better its going to be when i firm up the front bar.

next week i hope to see how it is with the rest of the kit installed (shocks/struts/springs/camber kits)
as long as the weather holds out.


jay

 

Jay,

i'd like your opinion,

If lowering the car, would that negatively affect the instant/roll center of the front suspension?

When I was doing my engineering degree, I did help a friend out with some suspension geometry and I would think that the angles of the control arms would change geometry in a negative way.

 

<div class='quotetop'>QUOTE(Galaxie @ February 22, 2006, 2:21 PM) Quoted post</div><div class='quotemain'>
Jay,

i'd like your opinion,

If lowering the car, would that negatively affect the instant/roll center of the front suspension?

When I was doing my engineering degree, I did help a friend out with some suspension geometry and I would think that the angles of the control arms would change geometry in a negative way.
[/b][/quote]


yes it can and it can also create a bump steer issue.

i measured the ft control arm and tie rod and they both sit at 4.5 degrees down, from center.
i will remeasure after the springs are installed and see what the difference is.

i have a steeda lower control arm relocation kit comeing in anticipation of needing to correct the roll center
thing.

as far as the bump steer thing goes it looks like we can just put spacers under the rack,as it looks to be hard mounted to the subframe, and use longer bolts.

if not there are all kinds of kits to fix this by changing out the outer tie rods.

i plan on testing the car without the steeda kits so i can have a before and after comparrison to report.

a friend of mine gave me his g-tech pro( he sold his z06 and bought a 4x4?)
so i should be able to have some numbers to back up my seat of the pants evaluation.


jay

 

<div class='quotetop'>QUOTE(tkogt @ February 21, 2006, 8:14 PM) Quoted post</div><div class='quotemain'>
i hope that the mods read this and start a road race section for the performance forum
[/b][/quote]

I agree. Having a distinct 2005-08 Road Racing forum would good for those interested in it. I know I like the Drag Racing forum.

 

<div class='quotetop'>QUOTE(tkogt @ February 22, 2006, 1:32 AM) Quoted post</div><div class='quotemain'>
ok i needed that,
as you can see i now only drive with my helmet on???
[/b][/quote]
tko i fully got what your original post was about. i was also a street racer. stupid crap you do while young. age 14 was racing(illegally) at the track in a 66 fairlane 12sec. car. from there at 16 had a 10sec big block fairmont(sleeper)with out the sauce(250hp insurance in the trunk). never lost a race. wrecked 3 times though by myself. then on to grown up stuff s/c dragster and then my last car which is where i'm going with this anyway. suncoast '27 roadster. no sex at 150 only one seat and i'm a big guy so it was just a lonely fast ride.
age is nothing my dad is 58 years old has a suncoast 33 roadster that runs 8.70's and he is going to build a street race car...????...WTF is he thinking? i hope he builds it though cause he's got a badss small block for it
point is road race cars are safer for street driving cause thats what they are built for ROAD race. there is no way i'm taking a cornere with my 06 now with no sway bar and skinny barely grooved 4" wide tires on the front. i'm all grown up now kind of [img]style_emoticons/<#EMO_DIR#>/unsure.gif[/img]
heres a pic of my '27 9.19 @ 148.9

 

<div class='quotetop'>QUOTE(don_w @ February 22, 2006, 4:08 PM) Quoted post</div><div class='quotemain'>
I agree. Having a distinct 2005-08 Road Racing forum would good for those interested in it. I know I like the Drag Racing forum.
[/b][/quote]

I didn't even realize this, but there is a road racing/autocross forum in the Motorsports area, its in more of a General area, but it seems appropriate enough

http://forums.bradbarnett.net/index.php?showforum=114

 

<div class='quotetop'>QUOTE(Galaxie @ February 22, 2006, 6:08 PM) Quoted post</div><div class='quotemain'>
I didn't even realize this, but there is a road racing/autocross forum in the Motorsports area, its in more of a General area, but it seems appropriate enough

http://forums.bradbarnett.net/index.php?showforum=114
[/b][/quote]

I come from a sports car background and having a road racing sub-forum would be great! I'm tired of hearing about guys brake revving their automatics!

 

<div class='quotetop'>QUOTE(tkogt @ February 22, 2006, 2:43 PM) Quoted post</div><div class='quotemain'>
yes it can and it can also create a bump steer issue.

i measured the ft control arm and tie rod and they both sit at 4.5 degrees down, from center.
i will remeasure after the springs are installed and see what the difference is.

i have a steeda lower control arm relocation kit comeing in anticipation of needing to correct the roll center
thing.

as far as the bump steer thing goes it looks like we can just put spacers under the rack,as it looks to be hard mounted to the subframe, and use longer bolts.

if not there are all kinds of kits to fix this by changing out the outer tie rods.

i plan on testing the car without the steeda kits so i can have a before and after comparrison to report.

a friend of mine gave me his g-tech pro( he sold his z06 and bought a 4x4?)
so i should be able to have some numbers to back up my seat of the pants evaluation.
jay
[/b][/quote]

I had the FRPP handling package installed last week and it does change the geometry. I installed the Steeda Bump Steer kit and elongated the strut holes to bring it back in. It was aligned to about -1.5 so I won't eat up the tires too fast daily driving. The first AutoX is on the 18th of March and I'll decide then if we want to change the sway bar from the center position and realign.

 

<div class='quotetop'>QUOTE(topconbob @ February 22, 2006, 9:14 PM) Quoted post</div><div class='quotemain'>
I had the FRPP handling package installed last week and it does change the geometry. I installed the Steeda Bump Steer kit and elongated the strut holes to bring it back in. It was aligned to about -1.5 so I won't eat up the tires too fast daily driving. The first AutoX is on the 18th of March and I'll decide then if we want to change the sway bar from the center position and realign.
[/b][/quote]

as an option to slotting the strut holes there are camber kits made by Specialty Products Co. that are offset ground strut bolts that let you adjust the camber by turning the bolts. (14mm bolt kit # is 82105... i think ill look it up again tomorrow and edit the post if im wrong)

any good alignment shop should have them.

as side note did you check the alignment before you put the kit in, i plan to. i want to know whre it was from the factory. i agree that -1.5 is a good starting point, but as mine is the first s197 to go through my shop i dont know what the car wants or need to slice and dice ( my shop does tons of high performance alingments for all the autcross and road race guy/gals in town)


jay

 

<div class='quotetop'>QUOTE(ncblack @ February 22, 2006, 7:49 PM) Quoted post</div><div class='quotemain'>
I come from a sports car background and having a road racing sub-forum would be great! I'm tired of hearing about guys brake revving their automatics!
[/b][/quote]

Look here Clevel......oops, sorry, wrong obnoxious guy [img]style_emoticons/<#EMO_DIR#>/04.gif[/img] Stop picking on us auto people. You're just jealous, aren't you? Well I thought so. But lucky for you, your sports car background and request for a road-race forum provides you with some redeeming qualities.....so you're forgiven [img]style_emoticons/<#EMO_DIR#>/thumb.gif[/img]

By the way.....what's "break revving" ????


Mark

 

I want to get into Road Racing/ Auto Cross when I get back stateside but I have a few questions;

1.) What is the differance between roadracing and Auto Cross? (there is a club in my area that holds events at airports and Mil bases with elaborate cone set ups)

2.) Do I need a power adder for my car or are the 05s strong enough?

3.) Do I need some crazy sticky tires and bigger brakes to fun these courses

4.) At what point do you need a roll bar? and are these differant than Drag Racing Roll bars?

5.) What Mods should I do to the 05 to get her ready?

Thanks in advance
Jesse

 

<div class='quotetop'>QUOTE(2L8IWON @ February 23, 2006, 3:31 AM) Quoted post</div><div class='quotemain'>
I want to get into Road Racing/ Auto Cross when I get back stateside but I have a few questions;

1.) What is the differance between roadracing and Auto Cross? (there is a club in my area that holds events at airports and Mil bases with elaborate cone set ups)

Thanks in advance
Jesse
[/b][/quote]


for now ,cause im late to work the readers digest version

auto cross is the cone thing you have seen at the base
the course is designed to keep speeds down and cornering loads high

most of the drivers movements are quick and violent ie. application of the brakes/ foot feed/ steering wheel
ect.

road racing is what the f1 guys do ( more to follow, im late to work)

jay

 

<div class='quotetop'>QUOTE(Galaxie @ February 22, 2006, 6:08 PM) Quoted post</div><div class='quotemain'>
I didn't even realize this, but there is a road racing/autocross forum in the Motorsports area, its in more of a General area, but it seems appropriate enough

http://forums.bradbarnett.net/index.php?showforum=114
[/b][/quote]

I come from a sports car background and having a road racing sub-forum would be great! I'm tired of hearing about guys brake revving their automatics!

 

<div class='quotetop'>QUOTE(tkogt @ February 23, 2006, 7:25 AM) Quoted post</div><div class='quotemain'>
for now ,cause im late to work the readers digest version

auto cross is the cone thing you have seen at the base
the course is designed to keep speeds down and cornering loads high

most of the drivers movements are quick and violent ie. application of the brakes/ foot feed/ steering wheel
ect.

road racing is what the f1 guys do ( more to follow, im late to work)

jay
[/b][/quote]


road racing is a little different than autocross, because the speeds are so much faster you really have to slow down all of your control motions.

when i have a new student that has a lot of autocross racing in his/her backround, it a real struggle to get them to slow their hands down, most new road racers way over drive their cars and end up off the track.

road racing is all about controlled inputs to the steering/bakes/gas ect

the speeds are in some cases 3 or 4 times faster so when you make a mistake things can get really hairy

thats why at almost all open track events, if you have no track time under your belt, it is required to take some kind of class and go out with an instructor, and be signed off, before you can run by your self.


jay

 

I'd love to go around a race track a few times but it costs way too much.