It's informative to read all this and at times amusing!
I like the suggestion about the o-ring on the king pin the best. IF you run on a bumpy track yes it will be inconsistant. But you will have a measurement to use. After all I remember my full size oval car shocks having travel rings on the shafts from the manufacturer. So try the o-ring deal, it won't hurt to give it shot.

I didn't want to say it but, I also have been involved with big cars for quite some time and there is a lot that transfers over. Granted with real cars we don't have the luxury of changing tire compounds to help the car out but as far as front end stuff it is all the same. Most of the concepts work fine, if they didn't then why would S&B be on here telling us how to make our toy cars work better using real car methods of thinking? It all crosses over but may be a bit different. I have tried some big car type setups that didn't work on these car but some have worked fine. It all depends, not all of it works but most of it does.

Your right!!

Well too bad you can't fine tune your R/C cars with air pressure.. :)

the HPI shock thing is getting old.. i'm not sure where the "it works better" thing came from?

it's a shock with oil and a spring on it! it should in theory work as well as any other well built and designed shock!

the only thing better about the HPI shock is the fact that it's easier to build and it has a variety of pistons for it..other than that it should work like the other shocks for touring cars or oval cars! what i dont undestand is why some guys keep posting on how it works like the associated shock..of course it does! do you have to have one to go fast? hell no! do you want to be a sheep? hell yes..lol i have 2 HPI shocks..i never built the associated shock..if i saw one on your car i'm not going to tell you to throw it away..the new silva shocks dont work any better..they are just easier to build and dont leak half as bad as the kit shocks..will your car go around without them? YES! ok i feel better now!

skull i think shawn is looking for a $$$$ amount on what you think it takes to go fast in oval..you mentioned everything but cost,lol..

someone bought my old ADX car for 150.00 came with everyting but electronics..so for 150.00 plus there electronics they bought the current track record holding car in 4 cell stock in jacksonville..fact is that car never finished second up there ever! i posted my set up gear ratio and roll out 5 different times...i just dont think you can put a number on what it takes to win...LUCK has a roll in all of this as well as knowledge of both car set-up and track..i have been playing with these cars since 1986 and every time i go race i learn 5 new things! go to the snowbirds and hang out for a week and you will learn 1000 new things.. the best car threads and the best speedo threads and best tire threads and all those best threads kill me...i have sat back and watched some guys hand over there car..complete how it cam e off the track and watch the other guy bang walls and drive a wack line around the track...i think sometimes the racer himself cant admit he may not obtain the skill required to go fast sometimes? we all know at least one guy who spends 1000.00 of dollars on his stuff and still he is in the C main ..go look at mike boylans car and equipment..he whoops us all every sunday..he has maybe 20% the money we all do in his car..yet he wins week in and week out...i'll take skill,luck and knowledge over money ,motor and batteries all day long... phew blood pressure shot up 100 points,lol...skull will you be at the birds? peace out! :thumbsup:
Your crazy man !!!LOL

Seriously though, what would extending the upper a arms do? ie putting spacers in between the castor blocks and lower arms?(I know its in this thread somewhere but what are your guys opinions??)

It increases mechanical grip. Irs has blocks with 2 columns of holes.

JPH also sells spacers to do that, they are pretty neat.

RPM, what do you mean I can't tune with air pressure!!!! That is where I have been wrong all these years. Actually oyr big car stuff is mostly on bias plies anyway so air doesn't do much other than change the size. I wish we had some more big car type stuff on there little car, like the rear suspensions and such.

jbm38, good point about the real car stuff. As long as you drove a good lap then the orings will probably work fairly good. The more I think about it I believe that you probably would see more travel in the corners than over most bumps I have seen, now I do race at one track where you bottom the car off this jump getting into 3 which is always fun!! I will have to test out the orings next time I go racing.

I got em I was thinking of putting them on and see what it does.

I look at the RC oval cars like this, to me theory applies and works in some areas of the design. As far as the rest of it experiment and have fun.
At least until someone comes out with a proper front end your basically working with a solid axle front end with upper control arms.
As far as the real cars at times I miss building and designing them. Oh well.
Main Goal- Have Fun!!!!

RPM, what do you mean I can't tune with air pressure!!!! That is where I have been wrong all these years. Actually oyr big car stuff is mostly on bias plies anyway so air doesn't do much other than change the size. I wish we had some more big car type stuff on there little car, like the rear suspensions and such.

Midget oval racing we used 100% nitrogen in the tires which is about 500 times dryer then air to reduce buildup pressure caused by heat. :thumbsup:

This you know would effect the slip angle of the tire.
Very little can be done with spec springs in this class of racing.

Stock car racing was different. Setup was with mostly suspension and
just a fresh set of tires with pressure relief valves.

Racers need to remember that:
Setup and handling is easy with track time.
People just like to over think the setup on there vehicle and thats there problem. :freak:


''I just stayed in a Holiday Inn Express last night!!''

Yeah, I know all about Nitrogen...I have been using that in tires for ever. We don't get to use the bleeders though!! They would be nice to use but if you use nitrogen you don't need them, if you used air then they would be needed to control the build up. I see why I am slow..I over think my setups all the time!! That and I can't drive either!!

It increases mechanical grip. Irs has blocks with 2 columns of holes.

What do you mean by mechanical grip?

Brandon

What do you mean by mechanical grip?

Brandon

I think he's talking about the front roll center adjustment on the IRS/KSG/Hyperdrive upper A-Arm.

Yeah, I know all about Nitrogen...I have been using that in tires for ever. We don't get to use the bleeders though!! They would be nice to use but if you use nitrogen you don't need them, if you used air then they would be needed to control the build up. I see why I am slow..I over think my setups all the time!! That and I can't drive either!!

Just hang in there and keep up the seat time.
Before you know it. Your driving to the winner circle!! :thumbsup:

bsrracing8
I believe it works with the roll center left to right. It chances the leverage on the spring.
It will also decrease camber gain.
It gives the car more front bite.
I use it on flat tight tracks.
tj

ok thanks that is what i thought he was talking about.


Brandon

Brandon try it at marshalls it work,s good there . #2 Kenny

hey kenny how are you doing? how much camber and caster did you run at marshalls when you where there i am still kind of confused about the menchinical grip thing? Maybe you can explain?

Brandon

kenny!!! lol hi

joe ivo

Didnt Kenny finally DIE??

Ok S$B, I am wondering why my car is such a dog through the middle and off the corners.It seems like no matter what i do the car wants to "plow" through the turns.......instead of rolling through them. I am running 4cell stock on a short flat oval.I have Progressive reds on the front, reds on the side in the rear and a green center.I have experimented with blues and bakcs for the front tires, and im running grays on the rear. Heck i have even tried to change my driving style, but i have come to no conclusion. Any ideas?

Ok S$B, I am wondering why my car is such a dog through the middle and off the corners.It seems like no matter what i do the car wants to "plow" through the turns.......instead of rolling through them. I am running 4cell stock on a short flat oval.I have Progressive reds on the front, reds on the side in the rear and a green center.I have experimented with blues and bakcs for the front tires, and im running grays on the rear. Heck i have even tried to change my driving style, but i have come to no conclusion. Any ideas?

Sb does not post anymore.. his last post was last year some time.. Ughh i wish this thred would go away.. LOLb Try the new to oval questions thread..

Stiffer center shock (oil & shock), harder right rear tire, then hit the trackby yourself. take a few laps on the car, come back in and keeping taking left rear tweak weight out the car until you can't hear it bogging down anymore. That'll get you going

Hey i run a tc3 on a smooth concrete oval. It has quite a bit of rubber laid down on it so to alot of the drivers its pretty tacky. Mine on the other hand is hooking and spinning about halfway thru the corner. I run 50 weight shock oil, a gold spring on the left front, a red on the right front, and silvers on the rear. How would i go about correcting this problem???

Sb does not post anymore.. his last post was last year some time.. Ughh i wish this thred would go away.. LOLb Try the new to oval questions thread..
LOL..... Hey Burbs! ........ITS BAAAACK! LOL .....sorry couldnt resist ;)

4oU try this thread lots of good info and people do reply http://www.hobbytalk.com/bbs1/showthread.php?t=119093

I bet Burbey is thinkin' like the little girl in "Poltergeist".....


They're Back!!

I thought I would bring this thread back, there is some really great info here that will help guys who are thinking a speedo is the only thing that will make them faster.

Scull and Bones is an engineer with Richard Childress Racing and doesnt come on here much ... I am sure we can use the tools he laid out for all to use and get this chassis tuning thread back up and running .....

Miss racing with the Jazzy Jeff and Im sure we will race again sometime soon

ROCKET

well all this info is real good..unless you don't own a mamba or a tekin..than your laps off the pace with talbots set-up and him driving it!

or it's a great souce of chassis info for folks who do and folks who don'twell all this info is real good..unless you don't own a mamba or a tekin..than your laps off the pace with talbots set-up and him driving it!

S&b = David Rodgers

Holy thread resurrection batman!

S&b = David Rodgers

That's Mr Rogers to you! LOL!!:thumbsup:

http://www.nascar.com/2008/news/headlines/bg/07/17/drogers.happy.at.gibbs/index.html