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Search took 0.00 seconds. Search: Posts Made By: RBbugBITme
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 01-18-2016, 04:33 PM
Replies: 333
Views: 189,632
Posted By RBbugBITme
College level analysis = simple Real world...

College level analysis = simple
Real world analysis = complex
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 09-23-2015, 06:13 PM
Replies: 333
Views: 189,632
Posted By RBbugBITme
Not sure if I'm missing something but the OP has...

Not sure if I'm missing something but the OP has the rear motion ratio around .85 and links another thread that has it around .75.
From a sketch I built off the factory 3D model I have the MR...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 04-29-2015, 05:50 PM
Replies: 333
Views: 189,632
Posted By RBbugBITme
Meister seems to make a nice piston and that...

Meister seems to make a nice piston and that looks more like a high flow linear piston. I'm used to force/velocity graphs and maintaining uniform units of measure but the compression side is the...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 04-29-2015, 12:57 PM
Replies: 333
Views: 189,632
Posted By RBbugBITme
I simply mean that we have the ability to build a...

I simply mean that we have the ability to build a shock with almost any damping rate required at pretty much any sector of the shock dyno graph. We simply have to incorporate different technologies...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 04-28-2015, 09:27 AM
Replies: 333
Views: 189,632
Posted By RBbugBITme
When you have the ability to manipulate all areas...

When you have the ability to manipulate all areas of the damper curve you can easily end up with greater than 1 damping ratios in some areas and zero damping in others depending on the application. ...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 04-15-2015, 12:50 AM
Replies: 333
Views: 189,632
Posted By RBbugBITme
Just a simple BS in Mechanical Engineering with a...

Just a simple BS in Mechanical Engineering with a focus in Thermo and fluids.
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 03-30-2015, 04:03 PM
Replies: 333
Views: 189,632
Posted By RBbugBITme
So the low down on VDPs. Their use can be very...

So the low down on VDPs. Their use can be very driver dependent, it is mostly a driver feel decision between the VDP and the digressive piston. When you're fully loaded in a corner and you hit a...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 03-28-2015, 09:55 PM
Replies: 333
Views: 189,632
Posted By RBbugBITme
You hit the nail on the head. Penske customer...

You hit the nail on the head. Penske customer support is unmatched and everyone copies the piston designs.

I'll get back to you with an educated answer on the VDPs. I've yet to develop a shock...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 03-28-2015, 08:24 PM
Replies: 333
Views: 189,632
Posted By RBbugBITme
Thanks for posting mostly Penske pistons. Its...

Thanks for posting mostly Penske pistons. Its much of the reason Penskes are better than the rest. They are important.
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 02-26-2015, 01:31 PM
Replies: 333
Views: 189,632
Posted By RBbugBITme
I think this analysis from post #216 may be the...

I think this analysis from post #216 may be the most informative. The saw tooth at the far right of this analysis is at OEM ride height. You're looking at camber and FAP height and from other...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 02-26-2015, 11:31 AM
Replies: 333
Views: 189,632
Posted By RBbugBITme
You're right but the roll center for this car...

You're right but the roll center for this car isn't that controlled. Depending on your ride height you can see RC heights during roll from -1" to +10" or +1" to -10". That is a big swing worth...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 02-26-2015, 09:57 AM
Replies: 333
Views: 189,632
Posted By RBbugBITme
ZDan, I understand any RC related equations...

ZDan, I understand any RC related equations become useless when it is very near the ground plane. That doesn't change the fact that when it (or the FAP if you prefer) passes back and forth above and...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 02-25-2015, 11:49 PM
Replies: 333
Views: 189,632
Posted By RBbugBITme
Alright, here are the camber curves and FAP's at...

Alright, here are the camber curves and FAP's at two different ride heights.

What I've done is select a static steer angle to account for the effect of caster, and then iterated chassis roll angle...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 02-25-2015, 11:13 PM
Replies: 333
Views: 189,632
Posted By RBbugBITme
eeehhhhhhhhhhhhhhhhhhhhhh having to think to...

eeehhhhhhhhhhhhhhhhhhhhhh having to think to much, too many non-linear relationships with tires.

http://media.giphy.com/media/4A49DBPhSYRTW/giphy.gif



I was provided with separate 3D models...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 02-25-2015, 10:17 PM
Replies: 333
Views: 189,632
Posted By RBbugBITme
This can be calculated... Its very basic math,...

This can be calculated... Its very basic math, you just need to gather all the required information.
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 02-25-2015, 10:06 PM
Replies: 333
Views: 189,632
Posted By RBbugBITme
Yeah, tire data is as rare as a unicorn. You...

Yeah, tire data is as rare as a unicorn. You literally have to buy tons of sets yourself and run the same track over and over at different settings with shock pots and g-meters to get any real...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 02-25-2015, 07:35 PM
Replies: 333
Views: 189,632
Posted By RBbugBITme
Here is what I was talking about with the instant...

Here is what I was talking about with the instant centers flipping the side of the car its on. 1" drop with one image at -.983 deg of roll and the other at -.984 deg of roll. May not be a huge deal...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 02-25-2015, 04:38 PM
Replies: 333
Views: 189,632
Posted By RBbugBITme
I think only a few hundred a year plus the...

I think only a few hundred a year plus the computer/RAM/GPU to handle some of the file sizes, and CAD software.
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 02-25-2015, 03:45 PM
Replies: 333
Views: 189,632
Posted By RBbugBITme
These are based on Toyota/Scion 3D models that...

These are based on Toyota/Scion 3D models that have been paid for so I can't share the data points.

http://img.photobucket.com/albums/v364/iwantawd/PdV%20Motorsports/brz%20shell.jpg...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 02-25-2015, 02:32 PM
Replies: 333
Views: 189,632
Posted By RBbugBITme
Yeah, when I get home.

Yeah, when I get home.
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 02-25-2015, 01:46 PM
Replies: 333
Views: 189,632
Posted By RBbugBITme
You've measured this? You can certainly...

You've measured this? You can certainly calculate it but I'm not going to since I have no vested interest in this car.

The RC width going to infinity isn't an unstable equation. That is...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 02-25-2015, 11:23 AM
Replies: 333
Views: 189,632
Posted By RBbugBITme
Part of the problem it represents is that your...

Part of the problem it represents is that your jacking forces will switch from positive to negative (anti-jacking) mid-corner. No one ever wants to design that in on purpose. You either maintain a...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 02-25-2015, 11:21 AM
Replies: 333
Views: 189,632
Posted By RBbugBITme
Sorry Calum, I would rather not and really can't...

Sorry Calum, I would rather not and really can't recommend the best ride height. The intent here is to supply you with enough info to be able to make better educated decisions about your own setup. ...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 02-25-2015, 09:29 AM
Replies: 333
Views: 189,632
Posted By RBbugBITme
WinGeo

WinGeo
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 02-25-2015, 07:36 AM
Replies: 333
Views: 189,632
Posted By RBbugBITme
I can't believe I'm condoning this but if this is...

I can't believe I'm condoning this but if this is all correct, you're going to want to drop your car at least 1.5" and probably increase caster a degree. At that point you still have pretty bad but...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 02-25-2015, 12:30 AM
Replies: 333
Views: 189,632
Posted By RBbugBITme
So here is the front info I can gather. I...

So here is the front info I can gather. I admittedly have never analyzed a strut suspension in this software before so maybe I input something wrong but the data points are exact.

Front...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 02-14-2015, 04:51 AM
Replies: 333
Views: 189,632
Posted By RBbugBITme
Cool thread. I'll see what I can contribute...

Cool thread. I'll see what I can contribute after this weekend.
Showing results 1 to 27 of 27

 
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