My Rocky Mountain Rookie Videos

Post your CMC race videos here!
Supercharged111
Posts: 373
Joined: Sun Jul 28, 2013 9:18 am
Location: Colorado Springs, CO

My Rocky Mountain Rookie Videos

Postby Supercharged111 » Fri Apr 11, 2014 6:26 am

Finally threw down on a Gopro, here's 2 of the 4 from last weekend. They take FOREVER to convert, edit, export, and upload with GoPro's software (I'm open to suggestions).

Race #1: started 4th, traded positions back and forth with Brad, finished 4th.

https://www.youtube.com/watch?v=Pfp7n71z7xI

Race #2: started 4th, somehow got freight trained on the infield, never recovered, finished 5th.

https://www.youtube.com/watch?v=jWN3r8knFKg
Now that the official results are out, I won $150 in Toyo Bucks over the weekend! :D

So I just now noticed that we can't embed the videos in here?
Rocky Mountain CMC Director
#45 Camaro Challenge Race Car

Supercharged111
Posts: 373
Joined: Sun Jul 28, 2013 9:18 am
Location: Colorado Springs, CO

Postby Supercharged111 » Sun Apr 13, 2014 8:35 am

I'm having an insane amount of trouble getting Sunday's race 1 to convert properly, so if anyone has any suggestions that'd be great. Here's Sunday's race 2. Started 4th, finished 3rd, lost my ass on the standing start!

https://www.youtube.com/watch?v=_wHlBYf ... e=youtu.be
Rocky Mountain CMC Director
#45 Camaro Challenge Race Car

suck fumes
Posts: 458
Joined: Thu Jun 28, 2012 4:21 pm

Postby suck fumes » Sun Apr 13, 2014 9:08 am

That setup on your car is killing your cornering speed.
2013 CMC NATIONAL CHAMPION

Motorsportheaven.com

Supercharged111
Posts: 373
Joined: Sun Jul 28, 2013 9:18 am
Location: Colorado Springs, CO

Postby Supercharged111 » Sun Apr 13, 2014 9:20 am

Go on. . . by the way did you watch Saturday or Sunday? The car turned in much better on Sunday, that's the 3rd video.
Rocky Mountain CMC Director
#45 Camaro Challenge Race Car

User avatar
DrC
Posts: 209
Joined: Tue Nov 18, 2008 5:59 pm
Location: Dayton, OH

Postby DrC » Sun Apr 13, 2014 4:29 pm

You have any suggestions for him?
We are all friends here.
Thanks
Dan Close
Dayton, OH
CMC
Black 95 Mustang #74

suck fumes
Posts: 458
Joined: Thu Jun 28, 2012 4:21 pm

Postby suck fumes » Sun Apr 13, 2014 8:29 pm

I don't know what to tell him cause I haven't seen the car. Just from the video it seems it could benefit from some spring/shock testing and tuning.
2013 CMC NATIONAL CHAMPION



Motorsportheaven.com

Supercharged111
Posts: 373
Joined: Sun Jul 28, 2013 9:18 am
Location: Colorado Springs, CO

Postby Supercharged111 » Sun Apr 13, 2014 10:13 pm

I've done 2 things in my life to a car's setup in an attempt to make it go around corners faster. 1st was adding 2 degrees of negative camber to my supercharged Trueno (Corolla) coupe in Japan, 2nd was last weekend with the toe out. I was hoping for a little direction, like "try a softer spring" or "try less damping on the compression stroke". I don't know if I should start with corner entry or mid corner, the former being a transient and having different requirements than the latter. As is, the car is competitive, but there's always more. I'm hoping for that "aha!" moment when suddenly the car is just faster than everyone else's.
Rocky Mountain CMC Director
#45 Camaro Challenge Race Car

Supercharged111
Posts: 373
Joined: Sun Jul 28, 2013 9:18 am
Location: Colorado Springs, CO

Postby Supercharged111 » Mon Apr 14, 2014 8:48 am

Here's Saturday's rain race (1). I broke a headlight cover and the exhaust fell off!

https://www.youtube.com/watch?v=gCXi4HYepa0
Rocky Mountain CMC Director
#45 Camaro Challenge Race Car

Glenn
Posts: 2672
Joined: Tue Jun 01, 2004 3:53 pm
Location: Ft. Worth

Postby Glenn » Mon Apr 14, 2014 12:30 pm

Supercharged111 wrote:I've done 2 things in my life to a car's setup in an attempt to make it go around corners faster. 1st was adding 2 degrees of negative camber to my supercharged Trueno (Corolla) coupe in Japan, 2nd was last weekend with the toe out. I was hoping for a little direction, like "try a softer spring" or "try less damping on the compression stroke". I don't know if I should start with corner entry or mid corner, the former being a transient and having different requirements than the latter. As is, the car is competitive, but there's always more. I'm hoping for that "aha!" moment when suddenly the car is just faster than everyone else's.


Post your set-up.
Texas Region AI/CMC Series Director
Inferior Driver, Superior Platform…. since 2005.

Supercharged111
Posts: 373
Joined: Sun Jul 28, 2013 9:18 am
Location: Colorado Springs, CO

Postby Supercharged111 » Mon Apr 14, 2014 2:03 pm

Let my ignorance shine! :lol: I'm only just now getting to the point of paying close attention to this. I'll need to verify part numbers on the springs to know the rates for sure, but I'm told they're 1100-1150 up front and 250-275 out back, Unbalanced Engineering shocks, rear end supposed to be just under .5* camber, front alignment is 1/8" toe out, 2.25-2.5* camber, caster is what it is. I was thinking of going after the UCA mounts to shoot for 7* caster and see how that feels since that should give me even better turn in and ought to marginally decrease scrub (which I also want to calculate). Unless eccentrics exist for the UCAs? Then I could get my caster with the turn of a wrench and not have to cut anything.
Rocky Mountain CMC Director
#45 Camaro Challenge Race Car

Glenn
Posts: 2672
Joined: Tue Jun 01, 2004 3:53 pm
Location: Ft. Worth

Postby Glenn » Mon Apr 14, 2014 6:48 pm

Too much spring rate on the front. Too much camber for any spring rate, much less for what you have. Caster should not exceed 5 at most. More with lower camber numbers, higher w/ less camber.
Your front and rear rates are too far apart.
Wanna chat more, call me. Number is listed in the rulebook.
Texas Region AI/CMC Series Director

Inferior Driver, Superior Platform…. since 2005.

suck fumes
Posts: 458
Joined: Thu Jun 28, 2012 4:21 pm

Postby suck fumes » Mon Apr 14, 2014 7:39 pm

Holy crap! You run 1100 pd front! There's your problem right there. You might as well remove the shock cause the car won't even flex with those springs.
2013 CMC NATIONAL CHAMPION



Motorsportheaven.com

Supercharged111
Posts: 373
Joined: Sun Jul 28, 2013 9:18 am
Location: Colorado Springs, CO

Postby Supercharged111 » Mon Apr 14, 2014 8:09 pm

I get plenty of body roll, that was the first thing I noticed when I took the car on track. Thinking back, the front had a lot of movement which I figured was due to the car being so low with no roll center correction. It wasn't as flat and confidence inspiring as the Corvette. Now that I'm used to it, it's no big deal and when things get loose, I find it relatively easy to deal with. Haven't spun it yet! *knocks on wood* I checked the front springs, they're Eibach 45038 which doesn't exist. The other number I found is 0800.250 which is an 8" long spring that's 2.5" in diameter but the rest of the number seems to be absent which is the rate. FML. Same story out back, they're blue Hyperco springs but I don't see anything else on them. How does one determine spring rate? I know my local machine shop can put valve springs on a machine to tell me the rate, what do I do for suspension springs? Aside from email Eibach.
Rocky Mountain CMC Director
#45 Camaro Challenge Race Car

suck fumes
Posts: 458
Joined: Thu Jun 28, 2012 4:21 pm

Postby suck fumes » Tue Apr 15, 2014 4:15 am

If the fronts are eibachs there should have been another three digit number on the end which is your rate. Ex: 800.250.xxx
2013 CMC NATIONAL CHAMPION



Motorsportheaven.com

Supercharged111
Posts: 373
Joined: Sun Jul 28, 2013 9:18 am
Location: Colorado Springs, CO

Postby Supercharged111 » Tue Apr 15, 2014 6:47 am

Yep, conventiently worn off of the spring on both sides.
Rocky Mountain CMC Director
#45 Camaro Challenge Race Car


Return to “CMC Race Videos”

Who is online

Users browsing this forum: No registered users and 1 guest