MonkeyCmonkeyDo

iTrader: (4)

I don't think it's nonsense when it's my money being spent on it. I deff don't aim to offend anyone. My apologies. I won't even be able to tell the diffeence between motors so yes my voice really dosent matter...I speak my mind. What u read is what I think.

bertrandsv87

iTrader: (2)

Your voice, and all voices matter, even Bert's...lol....

skypilot

iTrader: (14)

you need to figure out the difference in speaking your mind and talking out of your as...... maybe its the same....

vinny73

iTrader: (24)

A couple questions outside of the BS bickering. 1- Has anyone figured out with the size difference of a PF tire is when it's wide open throttle? 2- Should that size difference be taken into consideration when setting up ride height? If so, how valid is that consideration? After the wonderful explanation of my original question of ride height and droop, it made me think about measuring the tire when it balloons and dividing that measurement by 2 then subtracting that from my ride height. For example, if I run a 5/5.4 ride height, the tire balloons at 2mm, then I would setup for a 4/4.4 ride height. If I spent most of my time at wide open throttle.........Chasing the all mighty setup. Thanks for your time.

bertrandsv87

iTrader: (2)

Rideheight is only measured while vehicle is at rest....

glennhl

iTrader: (16)

I find this very interesting. It's like the top fuel dragsters, by the time they get to the end of the strip their tires have grown substantially. The tuners have to take this into account when determining the rearend gear ratio that is needed.

But I don't think you can measure the tire growth with the car in the air, you will need the car weight on the tires. Maybe put your phone camera in slow motion (if your phone doesn't have this, then there are apps). Take the best closeup video you can of the car and see if you can measure the tires from stopping the video.

Another way to go about it is to think of why we run the ride heights we do. Since lowering the ride height lowers the CG, you want to have the ride height as low as possible because lower CG results in less weight transfer in corners which results in more traction and higher cornering speed. So put whiteout on the edge of your chassis and lower the car down 1/2 mm at a time and see when you start to drag. Good luck and if you do this, please report back. Personally I think you are onto something.

skypilot

iTrader: (14)

most tracks and rules require a 5mm min ride height.

vinny73

iTrader: (24)

I'm aware of that. But that statement is too general and mostly for TC. As their tires generally don't balloon like the PF VTA tires. Hence the question.

vinny73

iTrader: (24)

The parking lot I run at doesn't enforce that rule. IF they did, I wouldn't follow it anyways. The questions I posed have nothing to do with rules and therefore don't apply to them. Just trying to gain a more educated understanding. Thank you for making me aware though.

vinny73

iTrader: (24)

We race next Sunday and will report my findings. I will be making adjustments to my USGT as well regarding this conversation. The USGT tires are well broken in and balloon a tad. Curious to see if a lower ride height helps. Finally at a skill level where I can notice subtle changes.

RKeasler

iTrader: (5)

So the dragsters use this to gain top speed correct, so any gain would be only for the straights I'd assume, plus not sure that even at scale the percentage of tire growth on on our cars would make anything more than a negligible difference overall... In relation to the power put to a dragster tire.

vinny73

iTrader: (24)

point taken. Wise analogy. I’ll try my thought and report back. Thank you all.

mrreet2001

iTrader: (9)

It answered your second question.

The answer is NO.

TonysScrews

iTrader: (13)

Any time I've run less than 5.0mm of ride height on black CRC carpet, my chassis will pick up a ton of tire traction which only makes it tacky and not good.

Scionara05

iTrader: (2)

Doing a deep di e back into the wiki for the vta series from 1968-1972 there was a class called under 2.0L then changed to the 2.5 challenge. (2.5L motor cars)
these to series included cars like the BMW 2002 ,alfa Romero, Austin mini, escort mk1, porsche 911 was snuck into it as the crammed a back seat in it for a few years, and a few others. Is there any way that these would be excluded even tho they ran together with the over 2.0L cars like mustang and camaro. How is the process of possibly submitting these bodies for approval if able to find 10th scale cou ter parts available. Just to give more options for bodys that were in the trans an series as per the wiki describes?