Theory thread

[95shaw]

Was looking at the lr spacer thread.
Curious about the theory of sharter axle tubes and 2 off wheels versus standard wheels and axle tubes?

[billetbirdcage]

Was looking at the lr spacer thread.
Curious about the theory of sharter axle tubes and 2 off wheels versus standard wheels and axle tubes?

Not sure about now, but bloomer used to run a 2" shorter axle RR tube then you would for a 5 off wheel so he could use a 3" off wheel. This kept everything the same but put the caliper and rotor outside the wheel for less heat to RR tire and wheel for 100 lap races. Obviously it also allows to suck the RR in easily with a wheel offset change, I think they do make a 6" off wheel but they aren't stocked at weld (IIRC).

[fastford]

who makes the new "tornado" spring for the left rear that is about 80 lbs and like 16 inches long , its 5 inches at the top and 2 at the bottom . caught a glimpse at one today.......

[Kromulous]

Swift makes that spring, see em a lot on cars now.

We're on to the Testing deal this year, i agree with Billet. Just to hard to gain speed racing, during a race a night. You have to come to the track with your stuff ready to rumble now days. So we're planning a couple Testing nights this year.


I wonder how much that RR wheel flexes over a 5" offset?

[fastford]

TST has been pretty good the last couple years about leaving the track open after the last race for a short practice session , provided its not one of those long , drawn out nights. If you want to bring your car out before you jump strait into a race and make some laps or just finished the feature and want to make a change and go right back out to see what it did , i think its great........Hope they keep it up.....

[95shaw]

Swift makes that spring, see em a lot on cars now.

We're on to the Testing deal this year, i agree with Billet. Just to hard to gain speed racing, during a race a night. You have to come to the track with your stuff ready to rumble now days. So we're planning a couple Testing nights this year.


I wonder how much that RR wheel flexes over a 5" offset?

The wheel flex was the reason for my asking about the theory.
I guess everything is a compromise.

[Kromulous]

Personally i like idea, you have a lot of options at hand with the offsets, and still get the brake cooling, which i never even thought of as a benefit LOL.

[billetbirdcage]

Personally i like idea, you have a lot of options at hand with the offsets, and still get the brake cooling, which i never even thought of as a benefit LOL.

I've done it on some rear ends just to allow more testing (shortening axle tube 2"), however depending on your set up and cages you may not be able to remove 2" and still have the cage the same place from the center section (basically removing the 2" or whatever from between the snout and the cage/brake bracket). Also on RR it's pretty easy to get the tire into the lower part of the 4 link bracket if on a fast track due to tire flex, so you really need to pay attention before trying it. 1" is doable on many chassis with tame on j-bar but 2" rarely works as far as sucking the RR inboard. Also it's hard on some cars to go out on the RR without the body rubbing the RR tire statically

I just used wheel spacers instead of offset on wheels as it just to easy for someone to make a mistake on wheels and where they go.

[CCHIEF]

I recall the days of 3"s and 5"s on Masters cars, what a friggin pain in the azz.

[Kromulous]

Sounds like its a classic saying i use here at work all the time, It sounds good on paper...

Packaging on that RR would be pain.

[95shaw]

The reason for this thread is to dispel some of the monkey see, monkey do, things.

They will always be there.
Knowing what is the actual theory behind the pieces, help to make better choices..

Maybe???
Lol.

[JLyons]

billet , your no. 1 & 3 reminded me of a young driver i was trying to help , i could see him turn the wheel left , then right in the turn , he argued with me the car was not tight , he was 100% positive the car was loose , so i put the ole piece of white tape on the steering wheel and guess what , he made three laps , came back in with a big old grin on his face and said " your right , what do we do? " that piece of tape will help a young or inexperienced driver more than any thing . I also told another driver to put the tape on and he never would , 3 years later , he is still making the car loose so it will turn and still running in the back........

Fill me in on the “wheel tape” the rule if thumbs and what you are looking for to be able to do for it to be “on kill”

[Matt49]

On the steering wheel tape:
As a driver, almost everything you do in the car is by the seat of your pants and gross motor skills. There is very little "thought" going into it. The wheel tape paints a picture that you otherwise would not see. Regardless of what I "feel" or what I "recall" doing in the seat, if I'm at the center of the corner and that wheel tape is at 10 o'clock, the car is TIGHT. You can't argue with that. But without the tape, you CAN argue with that and a driver will tell lies to even himself.
The wheel tape and the final location of the brake bias adjuster is the ultimate driver lie detector kit.

[fastford]

thanks for explaining that matt, i could not decipher post 27 very well......

[JLyons]

Haha I just re read my post and couldn’t really decipher it either, sorry guys haha and yea I understand that, I would think it would be though to rely on that because your wheel location in the center depends on your entry and how on the “throttle tight” you are and how much you are on/off the gas.I would like to put some on mine just to see, I know it’s gonna show tight because I like a tighter car, but that’s something I want to work on is getting more comfortable with a car that’s a little looser then what I have preferred.