Hey, I don't see a thread here for photos of your Mopars...

...Let's see them!

I don't track a Mopar myself, but here are some good pics of my brother's stock '68 RoadRunner. Two seasons so far and he's improving nicely..

Seems back in the day after trying both, the factory teams favored panhard over the watts if I remember correctly, for what's worth, and not sure why.

That does seem an odd choice.

Speaking of tires...

67Satisfaction
Your enthusiasm for corner carving is wonderful.
I could type you a book to help you but i will offer you offline tech support if you desire. PM me

I had a lot of help getting my cars to survive laps from very talented people
Do not over tire your car...both cars ran 16x8 wheels 26 inch tall 10 inch wide tires...

Here is the Charger R/T links for when we tracked the car.
Charger R/T hot laps #1
There is lots of good info in there
Here is the 2nd year where the car ran sub 2.5 minute laps which gets the lap time watchers a whole lot to talk about
Charger R/T hot laps #2

And then there was this
What a wicked car

Those Alfa GTV6 are pretty fun. I drove one of those when I lived in Switzerland in the early 90's.

I am away from here most of the time so patience is required. It takes a while for me to type something to detail. Technical support is only good if you use it. This is technical support.

Remember the cars i build are driven normally like as in transportation that your wife can drive and run many hot laps on the road course track. When i built the Charger [car#2] our goal was to run the magic number at the Glen [Thunder Road] of 2.5 minutes on the full course on street tires and still have the wife drive it. We did both. The owner & wife passed away at 52 recently so track tires on the track are out of the question. I am now the caretaker of the car - awaiting license plates - so if i am lucky i will bring it to Carlisle and i may even run it at the Glen in June. It has factory type cruise control for those 80 mph interstate runs. The car is a blast to drive fast and easy to drive slow.

The thinking is always to put huge tires on the car to make it handle better but huge tires come with compromises. A 26 inch tall tire with 10 inches of tread fits perfectly and looks perfect. No compromises means there is no rubbing or hitting in full travel and high speed driving/turning situations. The bigger tires require the proper selection of HD suspension parts and car needs structural modifications to eliminate flex. In other words back up the grip. I am not convinced that staggered tire sizes is practical from a handling geometry viewpoint on these cars from years of laps and normal {?} driving.


You have to back up the big tires with good hardware on a solid platform. Weld & box the k frame is mandatory as are adjustable shocks, boxed lower control arms, aftermarket upper control arms, firm feel 3 box etc. 16:1 steering is perfect for the road course, i see no requirement for fasting ratios etc as that will not make the car faster in the turns so the lap times get better. Bling.
Don't forget the brakes.

Regardless of size you need proper tire selection to get the car to rotate in a turn - like it's on string. W or Z rated selection so you can switch to track tires if you really want fly. I ran both types of tires. The close to stock look of 255-50-16 inch tires on a retro look 16 inch wheel tires is a nice and proper look. You don't want car people to know the car is really a wicked wanda. An old muscle car with five spoke mag wheels. Btw a sidewall is required for ride comfort. Go look on the tire rack for a w rated street tire and track tire and there are no 17 inch selections.

I agree as one "over tires" ANY vehicle, other mods need to be taken to utilize the larger(?) tires full traction circle.

That DOS NOT mean there is no benefit from over tiring a vehicle without mods.

I have not I believe, anywhere suggested there is no downside in over tiring a car, in the realm of additional rotational mass, higher aero drag, aqua planing, cost, unbalancing due to poor size selection per axle, etc.

However one can on their own decide if the benefits in "overtiring" is worth the cost, in areas of higher driving performance, decreased braking distance ,etc.

My life experience in over 4 decades of "over tiring", and thru nearly all the sharing of others in that time, other then this thread, I have yet to review a solid case of how over tiring is a"mistake" and needs to be avoided, to the point, in the past, overtiring is but just a myth. That does not mean someday we might reach that point, like when an axles tires start to touch in the middle.

The road racers on the vette forum run faster times at road atlanta on 275's square vs 315's square. Same compound.

Contact patch for a given weight is always the same square inches.

The road racers on the vette forum run faster times at road atlanta on 275's square vs 315's square. Same compound.

Contact patch for a given weight is always the same square inches.

Here's my 63 valiant lemons racecar..

jcc
A 440?

Looks good to me up

Come on, get that battery in the trunk, the front tires are in pain with that 440.

pic of my Dart at 90mph+ at the track little 340 alu heads flat top mahle forged pistons making 410 hp@6300 lots of fun

Hi Ryan! (aka Devil) -- When were you at BHF? Cool to see other Mopars on track. I was there the entire weekend of July 3-4-5 for our MCSCC.org opening season race weekend... we had a huge overall turnout each day... and had to turn people away (unless they pre-registered) from entering the track (Illinois state limited people due to the virus). I was the Tower "PA Announcer" for the weekend.... my Challenger is almost ready to drive again!... I'll Be Back!

T/Anks for sharing the pics... very cool!

That chassis set with the enclosed pics and estimated speeds, looks to be a very well sorted out package.

Car to share any of your set-up specs?

Careful, your face may freeze with that smile on it. Looks like it handles pretty well.
What size rear tire are you running?

Setup is pretty simple and cheap. Stock front suspension with Hotchkis 1.1 torsions and a Summit brand 1 1/8 sway bar. I did get a proper alignment with -1.0 Camber / 3.5 Caster / and toe'd in just a bit. Rear is HD springs, 1.0" blocks, and a 3/4" Summit rear sway set in the middle. I did swap to disc's in the front with EBC Yellows, but the rear still has the 11" drums. Added brake cooling too. The ride height is down from stock but I don't remeber the exact drop. Its super predictable and well manered.

Last set of pictures from Thunder Hill

Thanks, It really is a happy car. Nice thing is the car can go back to stock if I ever want to go back down that road.

Motor is a low compression 440 with a 6 pack. No bogging in the corners. 727 trans that unfortunately gets hot on very hot days but I’m working that out. 8 3/4 rear with 3:23’s. Typically gets into the mid 4K RPMs in the main straight. Best part of the car....still has the bench seat and factory seat belts.