from what i know runnig a tight diff will get you out of the corner fast but it will scrub speed in the center of the corner, because both wheels are spinning at the same speed, instead of the outside moving faster.
as for running a loose diff, i would say that you would use this if your car is loose off of the corner. it give the rear tires time to catch up. Kind of like traction controle. the car will get to speed slower

This is what i think i know you didn't ask me but i want to see how close it is to what Brian says. brian has all the anwsers.
maybe brian and hank can make a book like big jim did. They could call it:

"Brian's Car Tuning Guide"

i would buy one!!

:roll: Keith :roll:

What would spacing out the right front by about.125 do to the car?

Brian,With a offset rear pod is there advantage to put the oncenter rear hub & shim out to be in between the two hubs it would bring in the r. rear with out cutting the outter edge of tire so you could run full width tire.

Dom-19, I just put an offset rear pod on my hyperdrive and tried to space out the axle to the right. Now I can't get the pinoin gear out far enough to meet the spur gear. I don't know if there is any advantage to it. All you can do is try. God luck.

Troy

Brian,

When running caps and a narrow left rear tire, do you space the hub out so the outside of the tire is where the outside of a normal width tire would be?

Pepe- rck is correct...if your diff is too tight it doesnt actually work correctly in the corner therefore slowing you corner speeds...you should always be able to turn one wheel and the other go the other direction and the spur gear should not move when you try to hold both rear wheels and try to turn it.

DOM- when you run an offset pod you should be able to run a full width right rear tire all the time if your body is mounted correctly...offset pods dont change wheeltrack it just moves the motor over...the left rear gets shoved out and the right is brought in...the only thing running a standard hub would do is actually narrow your wheeltrack and that will give you more rear traction which is sometimes a good thing.

Brians11- i actually keep the tire inside the body..when you push the tire out it makes the car loose off the corner and thats a very bad situation with caps.

impact- spacing the right front will make the car a bit tighter coming off the corner.

Ive always run the left front spring heaver than the right on flat tracks, but what is the exact reason,i had an other racer ask and i dont think i explained it that well any help would be appriciated

there is two reasons to run a left front spring heavier than the right front...by running a softer right front spring it allows the car to set in the corner and stay planted better...by running the left front stiffer it actually puts more weight on that tire therefore letting the left front do more work and actually helping the car turn better...the more you can get the left front to work the better your car will be...at the Snowbirds my left front was wearing more than my right front.

Hey Burkie,
How do you "cut someone off at the knees", on a dirt oval? After that, how do you get the foot out of the race directors mouth???

Bulldog...those were the days!

thats a tough deal but i think i managed that once Bulldog...racing is still fun but just on a different level.

Hey Brian,

When running cap tires how do you determine what stagger to run and when do you run a narrow rear vs. a regular width rear?

Thanks,

Tom

Brian,in your opinion, which tire\tires are most responsible for driving the car OFF the corner?

TOME- i dont do alot of cap tire racing but i dont usually run much stagger bcuase it tends to hurt straightaway speed...i try to use the geometry and mechanical grip to make the car turn...as far as i know you almost always run a narrow left rear these days.

Also- i think the tire most responsible is the left rear.

Brian: Some chassis have the avaiability of making the from end wide. What is your thinking and when would having a wide front end benefit me. "Al"

Originally posted by Al Spina
Brian: Some chassis have the avaiability of making the from end wide. What is your thinking and when would having a wide front end benefit me. "Al"

On this same page, Brian posted on this subject on 05-21-2002 02:00 PM

Brian I am having trouble getting my car run to stay on the bottom through the center and off the corner any suggestions I run at seaford which is asphalt anything would help thanks Jason.

Jason- it sounds like the car might have too much left rear in it..usually when a car wont turn coming off its too much left rear...try taking some of that out or if your running an offset pod go back to straight up and that will help it turn more coming off...you can also try taking some caster out as well...that will make the car a bit tighter going in and steer more coming off.

Al- try to find that post that i made that Tfrahm mentioned...that should help you out.

Hey Brian,

When running a concrete tri-oval (like Ontrax in Browns Mills, NJ) where should the wing be mounted - to the body or to the pod? They also run caps there and I don't know if that changes anything.

Thanks,
Tom

i know this has primarily been a pan car thread, but i was wondering if you would discuss and describe you car and setup for running at Kranzels..(tires, shock, spring, ????) thanks....

Thanks Brian we will give it a whirl hope to see ya on June 8th:hat:

Originally posted by TOME57
Hey Brian,

When running cap tires how do you determine what stagger to run and when do you run a narrow rear vs. a regular width rear?

Thanks,

Tom

in the front you run stagger to put extra weight on a specific tire (right front). for example run "L" left front and "S" right front so that the right front has a little more weight on it

in the rear you run stagger to get the rear to turn easier. however if you run too much stagger the car will want to get loose coming off the corner because the back is still trying to turn.

rule of thumb- run "L"'s on the left side with "S"'s on the right side and use an "R" on the right rear if your setup can handle it.

like brian said stagger does hurt straight away a bit, but your diff will take care of most of that.

also brian is right in that pretty much ALWAYS use a narrow left rear. there just isnt the need for a wide and the penalty for running a wide is just too great.

TOME- I would run the wing on the body at Ontrax as well...it seems like that is a much more consistent setup because the wing is stationary and not moving around with the pod.

easy- your going to make me think a bit on that one....i run associated big shocks with silver rear springs #2 piston and 70wt oil..fronts i run blue springs and #2 pistons with 70wt as well...the front shock tower i made myself but my shocks stand up straighter than they do on the standard large shock conversion...i also run my batteries very offset on a graphite tray that i made so i can moove my batteries in and out like a slider...i run JACO "35" donuts which are like a G2 i think...i think that covers most of it but if you need more info on something more specific ask away and ill do my best to help.

Jason- no problem...im hoping to get there but still not sure...one good thing is i got my car back today finally so i can actually work on it a bit.

so can my LHS get those 35s through you?...is your front tower similar to the Enforcer tower? or is it a taller slightly more angled version of the stock Int. tower?..when you say big shocks, are you referring to TC3 shocks? thaks

easy- Jaco isnt actually selling those at this point yet...we are just testing them to see how they work...im not real sure how to describe the front tower...its just an attachment added to the stock tower but the angle isnt as great as the large shock conversion...yes im referring to associated threaded shocks.

Hey Josh you got to plant the rear and make it steer !!!!! LATER HACKSAW:devil:

hey hacksaw that sounds like a Richie King quote,LOL

that definetely sounds like a Richie King quote!!

Okay! I've seen guys with super stiff set ups go fast and guys with super soft set ups go fast with the same car on the same track on the same day so which is it?I'm beginning to think it doesn't matter as long as you can go fast and drive the car,there really is no one set up better than the other or is there? thoughts & opinions appreciated.I'm thinking softer, freer is better personally.

My philosophy is stiffer is better.More roll speed through the center of the corner.Also when I try a soft set up it feels like I'm driving a boat.

pepe- this is a difficult question and you will get different answers from everyone so dont take my answer as the only one...i think that when see completely different setups going fast on the same track on the same its because the driving styles are radically different...i set my cars up so they are somewhat soft in the front and a bit stiff but not too much in the rear...this type of setup is very aggressive for steering and doesnt suit everyone...one thing i can say is that you should be careful copying a setup because of differing driving styles and sometime you can chase your tail simply because the car doesnt suit yourself.

I agree with Brian on this as I tried his set-up and was much slower than with my own set-up. I have found for me, I like a softer set-up over a stiffer one.

Troy

Burkie,
Dave from upstate NY has asked me to ask you a question: Why do you seem to excell at "national" events but get smoked at local races?!?!:devil: He'll be waiting for your reply!!! LOL!!

Seriously, can you hook me up w/ some of those "top secret" tires for Kranzels??? How 'bout a lexan template for that shock tower??? Buddy???? :D

Bob
Is that a Bayliner....he he

john- i guess id have to actually race at local races to excel at those well..:) im not sure about the tires thats not really my call but i can probably do something with shock tower but only if your nice.:D

Hey DP, look at that.....Burkie's tryin to be all Politically Correct, and not bust chops back! ROFLMAO!!!!!:p

Bulldog.......................

Wheres Mr. Putnam when we need him????

Thanks Brian that's pretty much the same conclusion I've come to,I'm back to square one trying to find a set up that works for ME.The one I've got now works pretty well I guess I just need to be satisfied set up wise and practice more on my driving.Thanks for all your help over the past months your insight has been great.

what will changing the spacing between the t-bar and the rear pod do to the setup of the car? or is this something you want to change at all?

if you go from a .075 to a .063 or a spring steele t plate you are going to need to space up the difference asap.

When I go from a 063 to a 075 or back I do nothing else... When I go to a steel I add spacers so the bottom pod plate is at the same level as the chassis..

you always want the pod level with the bottom of the chassis:p

We have found if you run your wing on the body at this track your car will bottom out in turn # 2

pepe- no problem at all...im glad ive been able to help.

brians11- if you run you t-bar under chassis level it will give you more rear bite...this happens because more weight is transfered to rear of the car...if you run the pod so it sticks out from the chassis the car will get more steering...i dont change spacing between .063 and .075 t-bars but i add a spacer for a spring steel.

What up Sure Shot man.......

Brian
I have several questions for you. I run a 10L3 so I am refering to this type of car.

There is a stiffining brace mounted on top of the T plate. What effect would removing this brace have?
What effect does cutting a slot in the T plate have?

What do you run for Camber?

What do you run for tire size? When do you feel a tire is getting too small?

I have been running the following set up on a slightly banked track and a flat track. Track length is 105 on the banked and around 120 on the flat track. The banked track has a 9' center and the flat is around 12'.
green front springs
gold left rear 30wt oil
blue right rear 30 wt oil
blue center spring 50 wt oil
blue rear tires
double blue right front
blue left front
I have also run green left rear with blue RR.
Also the RF upper A arm in bottom hole and LF in middle hole.
Camber is RF -1 and LF +1
The car drove real consistant but I seem to loose corner speed.
I race 4 cell stock and the corner is my down fall.
I have tried white rears with little difference.

Where can I look to find some more speed? The front end is polished and free.

Thanks in advance.

I do not want to step on Brians toes here but I would reccomend that you run the stiffest tire on the rear you can Like the JACO black rears ,In 4 cell stock racing rolling restience is a major factor. The key is to get your car to steer without having toturn the wheel . I find that useing left trim in your radio or useing rear steer [newADXcar] to get your car to find the line is much faster. Steve BIG DADDY Fuime found this at Kand N in COnn and we have been useing it at alot of tracks . if the car is turning already you do not have to turn the wheels. Now the problem is learning how to drive with left trim. I would also ask Pace G. what he uses to go fast at Barre/ Hope this helps and Brian sorry for steping in . SRM:wave: :wave: :wave:

I'm looking for any help.

I forgot to mention that I run BSR tires.

I have this same problem on the big tracks also. At K&N I was fast but got killed in the corners. So it just seems like there is something I'm missing.

Try three blacks and a white lr BSRs,The BSR blues are pretty soft.

SMROCKET is right on with the left trim it gave an xtra .2's once I got used to driving with it,the shorter the track the more it helps.Rear steer helps also

Mr.Burkhart,here in upstate N.Y.we run a rare bread of machine called a eastern dirt modified.This car looks kinda like a late model/cup car on crack! they look kewl, the problem im having with my car is it just wont run 2nd.Ive tried everything,gear stagger,wedge and nothing seems to work.I just cant stop winning! I hope its not too much to ask but the next time your up in my neck of the woods could you run it for me? I think your expertise on dirt is just what I need to get my car to run in back of the pack.By the way Rob Snyder says HI!.....lolololololol.......DP27
:wave: :dude: :thumbsup:

ROFLMAO!!!!!!!!!!!!!!!!!!!