PDA

View Full Version : Balanced: The five major factors of dirt late model handling



Garrettshurling
08-27-2014, 08:36 AM
The latest blog post is up!

http://nextlevellatemodel.com/balanced/

fastford
08-27-2014, 11:55 AM
pretty good over view, only argument I would have would be concerning no. 4 , I would say that with the rt rear back and lft rear forward, the car would tend to slide toward the wall instead of track, heres my reasoning, I had a car one time that was nearly dialed in, but it was a little tight coming off the corner, and would push toward wall, I lengthened the right bars 3 rounds of static rear steer, this freed the car up enough that it would turn or track around corner but was not loose, maybe JMO.....

Garrettshurling
08-27-2014, 06:38 PM
pretty good over view, only argument I would have would be concerning no. 4 , I would say that with the rt rear back and lft rear forward, the car would tend to slide toward the wall instead of track, heres my reasoning, I had a car one time that was nearly dialed in, but it was a little tight coming off the corner, and would push toward wall, I lengthened the right bars 3 rounds of static rear steer, this freed the car up enough that it would turn or track around corner but was not loose, maybe JMO.....

Thanks man! Real world testing always trumps theory. I appreciate you sharing!

racefastnow
08-27-2014, 10:12 PM
First, not sure I follow the issue with number 4 you are having. Isn't that what they are stating. Shorten LR, lengthen RR to create a looser feeling?

Second, adjusting static steer, what is preferred? Adjusting LR or RR? Talk to most drivers now seems like they like adjusting RR

jedclampit
08-28-2014, 07:24 AM
"NOTE: This article is missing one major factor, tires, I’ve written a few articles on this subject already."

I agree, but would also have to include tires, L/R rear thrust angle and aerodynamics in major factors of DLM handling.

fastford
08-28-2014, 07:35 AM
First, not sure I follow the issue with number 4 you are having. Isn't that what they are stating. Shorten LR, lengthen RR to create a looser feeling?

Second, adjusting static steer, what is preferred? Adjusting LR or RR? Talk to most drivers now seems like they like adjusting RR

some still adjust both sides and I also use to, but I only use right side now, I think the reason is were able to control dynamic steer so much better now, you only have to make small static adjustments and yes steering the rear to the right does create a loose or freer feeling, but there is a difference between loose feeling and tracking, I may not have said it just right, but that's what I was trying to say.

Garrettshurling
08-28-2014, 08:21 AM
"NOTE: This article is missing one major factor, tires, I’ve written a few articles on this subject already."

I agree, but would also have to include tires, L/R rear thrust angle and aerodynamics in major factors of DLM handling.

Both of those definitely need to be in there. Do you think they fit under dynamic wheel loading?

Thanks!

jedclampit
08-28-2014, 12:04 PM
Both of those definitely need to be in there. Do you think they fit under dynamic wheel loading?

Thanks!

I'd say all DLM handling falls under dynamic Tire loading!

Nice to see publication on DLM handling. Nice site.

.......don't give away any of the secret stuff!

drtrkr244
08-28-2014, 04:28 PM
DLM mag has been having good tech articles from Mark Bush.

This month he brought up the subject of changing trailing arm angles,top view, which you hardly hear anything about. I have been experimenting with them for about a year now and have found some small gains.

Not trying to take anything from your new site Garrett, just sharing some good info that's out there.

Garrettshurling
08-28-2014, 08:32 PM
DLM mag has been having good tech articles from Mark Bush.

This month he brought up the subject of changing trailing arm angles,top view, which you hardly hear anything about. I have been experimenting with them for about a year now and have found some small gains.

Not trying to take anything from your new site Garrett, just sharing some good info that's out there.

Mark is great! I've been to his school twice!

hpmaster
08-29-2014, 10:27 AM
DLM mag has been having good tech articles from Mark Bush.

This month he brought up the subject of changing trailing arm angles,top view, which you hardly hear anything about. I have been experimenting with them for about a year now and have found some small gains.

Not trying to take anything from your new site Garrett, just sharing some good info that's out there.

The amount you toe in or angle to the center of the car at the chassis on the upper right bar can help handling in my experiance. The others seem to be best straight forward or slightly pointed to the right of the car.

drtrkr244
08-29-2014, 03:20 PM
The amount you toe in or angle to the center of the car at the chassis on the upper right bar can help handling in my experiance. The others seem to be best straight forward or slightly pointed to the right of the car.

Yep....my driver said that tightened up his entry, which is what Mark said in the article.Toeing the lru in will give more hike up and drive.

Where was Mark a year ago when I was experimenting using the ol trial and error method! lol

Garrettshurling
08-30-2014, 08:49 AM
He puts on several seminars in the off season every year. Rocket hosted the ones I've attended.

keeks
08-30-2014, 05:19 PM
Whoa whoa whoa! Now we are talking adjusting bars left and right in the car? Just when you thought things couldn't get any more complicated? Geez.

drtrkr244
09-02-2014, 04:50 PM
He puts on several seminars in the off season every year. Rocket hosted the ones I've attended.

I have been seriously considering going to his school at Rocket. Does he teach more than the basics?

hpmaster
09-02-2014, 05:15 PM
I have been seriously considering going to his school at Rocket. Does he teach more than the basics?

Yes, it is more than just basics plus it gets you thinking about handling in a more complete car way. The best thing is you get to meet and talk to some other racers who have great info from other parts of the country. The last one I went to was in January 2012.

Garrettshurling
09-02-2014, 07:26 PM
I have been seriously considering going to his school at Rocket. Does he teach more than the basics?

For sure... you will definitely be in information overload by the end of the weekend.

PushinTheLimit
09-03-2014, 08:17 AM
Have they announced when or if they are doing the school at Rocket for 2015?

Garrettshurling
09-03-2014, 05:06 PM
Have they announced when or if they are doing the school at Rocket for 2015?

I'll email Mark and see.

drtrkr244
09-03-2014, 06:54 PM
Garrett, how much time is spent on tires (construction, selection, load characteristics)?

hpmaster
09-03-2014, 07:01 PM
Garrett, how much time is spent on tires (construction, selection, load characteristics)?

That is a weak/poorest part of the ones I went to.

Garrettshurling
09-04-2014, 08:32 AM
A pretty good amount of time. at least an hour or so. They have some pretty handy info in the book you get with the class too.

Garrettshurling
09-05-2014, 10:58 AM
From Mark Bush...

Larry Shaw Race Cars - Jan. 8,9,10 Batesville, Ar.
Rocket Chassis - Jan. 16,17,18 Clarksburg, WV
Midwest - Jan. 23,24,25 (Optional Front Suspension Geometry Class - Jan. 26)
Speedway Motors - Feb. 6,7,8 (Optional Front Suspension Geometry Class - Feb. 9)

The Deer Creek Speedway school will be held in Albert Lea, Mn. on Feb. 13,14,15 or 20,21,22

HuckleberryB4
09-05-2014, 12:31 PM
Where exactly is the Midwest school? I've attended a couple at Rocket, but would like to possibly attend the Front Geometry class!

BlackMagic
09-05-2014, 10:36 PM
At the Clarion Inn, in Evansville Indiana

hpmaster
09-06-2014, 07:10 AM
Where exactly is the Midwest school? I've attended a couple at Rocket, but would like to possibly attend the Front Geometry class!

I went to both the standard class and the frt end class in 2012. Anyone doing an advanced shock school?

Garrettshurling
09-06-2014, 01:18 PM
I went to both the standard class and the frt end class in 2012. Anyone doing an advanced shock school?

Not that I know of, but I'd like to go too!