|
Suspension | Chassis | Brakes -- Sponsored by 949 Racing Relating to suspension, chassis, and brakes. Sponsored by 949 Racing. |
|
Thread Tools | Search this Thread |
08-10-2015, 04:08 PM | #29 |
Senior Member
Join Date: Aug 2013
Drives: BRZ
Location: Denver, CO
Posts: 845
Thanks: 677
Thanked 396 Times in 264 Posts
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
|
Let's just say that his Engineers do all of his work and they are the ones that deserve the recognition, Claude is just a really good salesman. He goes out and sells dreams and then comes back to the office and asks if it can be done. Very backwards way of managing a company. I met some really cool people working there and learned a lot about vehicle dynamics and VB.net programming though!!
|
The Following 4 Users Say Thank You to fika84 For This Useful Post: | drewbot (08-11-2015), Gunman (08-10-2015), Racecomp Engineering (08-10-2015), Ultramaroon (08-10-2015) |
08-11-2015, 11:55 AM | #30 |
Member
Join Date: Nov 2014
Drives: '13 Denali, '15 Volt, soon a BRZ?
Location: CLT
Posts: 61
Thanks: 3
Thanked 55 Times in 23 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
He isn't taken seriously. For good reason. Although his software products are pretty good (cheap!).
Total weight transfer has only to do with mass, cg height, and track width and/or wheelbase! How it's impacted by springs, bars, geometry and dampers results in changes to things like response time, distribution, roll, and pitch angles. |
08-11-2015, 12:29 PM | #31 | |
Senior Member
Join Date: Aug 2013
Drives: BRZ
Location: Denver, CO
Posts: 845
Thanks: 677
Thanked 396 Times in 264 Posts
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
|
Quote:
|
|
08-11-2015, 02:16 PM | #32 |
Senior Member
Join Date: Apr 2011
Drives: miata, mazdaspeed protege, ls430
Location: socal
Posts: 4,416
Thanks: 599
Thanked 1,442 Times in 787 Posts
Mentioned: 28 Post(s)
Tagged: 0 Thread(s)
|
Lots of interesting "facts" being thrown around here
__________________
Drive upgrades. Don't buy them.
|
08-11-2015, 03:17 PM | #33 | |
Frosty Carrot
Join Date: Jan 2013
Drives: The Atomic Carrot
Location: Baltimore, MD
Posts: 513
Thanks: 272
Thanked 428 Times in 199 Posts
Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
|
Quote:
Redistributing weight (tire loading) can reduce the available grip. Flex in the bushings and chassis can lead to poor geometry. Dampers: If roll allows for more travel and better control from your existing shocks... that can be a good thing. If you run high-rate springs without ARBs (like @Captain_Snooze ), your travel will be small. Some dampers are designed to react quickly and strongly... and that type of setup is the holy grail (excellent grip, ride, and handling).
__________________
If you think you're nerd enough, join in the discussions about Suspension and Aerodynamic modelling!
Wall of Fame - JDL Auto Design, Raceseng, Vishnu Tuning, Penske Shocks, Nameless, Perrin, RaceComp Engineering, Essex/AP Racing, Verus, RacerX Wall of Shame - aFe Takeda, Wilwood, FA20Club |
|
08-11-2015, 05:06 PM | #34 |
Senior Member
Join Date: Dec 2012
Drives: FR-S Whiteout
Location: California
Posts: 2,863
Thanks: 1,808
Thanked 790 Times in 611 Posts
Mentioned: 42 Post(s)
Tagged: 0 Thread(s)
|
I remember reading about a couple of guys that are getting very good results deleting the rear sway bar. Although they also have stiffer spring rates on all 4 corners. Robispec and ElementTuning.
I've also experimented with this myself with good results, but had too little rear roll resistance causing the rear end to bounce off the bumpstops on the longer turns. I could stomp the throttle at the corner exit and it would just rotate and grip. Felt very good until it started to hit the bumpstops.
__________________
Intent > Content
cowardice is the mother of cruelty. Last edited by solidONE; 08-11-2015 at 05:55 PM. Reason: typo |
08-12-2015, 09:02 AM | #35 |
Join Date: Apr 2015
Drives: 2015 BRZ
Location: Motorsport Ranch, TX
Posts: 619
Thanks: 227
Thanked 1,181 Times in 362 Posts
Mentioned: 30 Post(s)
Tagged: 1 Thread(s)
|
I have heard things like that before. His seminars are good, but it's surprising how many people take his word as gospel. The fsae.com forums were always good to see different opinions.
|
08-12-2015, 11:30 AM | #37 |
Senior Member
Join Date: May 2014
Drives: Silver 2013 BRZ Ltd Auto 45,000 mi
Location: Vancouver, WA.USA
Posts: 965
Thanks: 86
Thanked 451 Times in 277 Posts
Mentioned: 60 Post(s)
Tagged: 2 Thread(s)
|
I've removed the front swaybar while leaving the rear, and removed the rear swaybar while leaving the front. From experience I can say the car can't handle speed without swaybars if you have oem or similarly soft suspension. I bought the front and rear "soft" sway bars from Cusco. The front bar is a hollow 16mm instead of a stock solid 18mm, and the rear is a hollow 14mm instead of a solid 14mm. The front is 79% as hard as stock, and the rear is 73% as hard as stock. Then I stiffened up my coilover's preload to compensate. Now I'm definitely feeling slop in the subframe chassis mounts, so I'll be installing "Spoon Ridgid Collar" sleeves on all the affected mounts to firm up the chassis. But if you want a really good ride, you'll have to add springs to the seat itself. It's got all the suspension and shock-absorbing ability of a futon.
|
The Following User Says Thank You to KoolBRZ For This Useful Post: | Chad_W (08-13-2015) |
08-12-2015, 02:53 PM | #38 | |
Only users lose drugs.
Join Date: Nov 2014
Drives: All the time
Location: Shrewsbury upon Worcestershire
Posts: 1,827
Thanks: 884
Thanked 1,073 Times in 679 Posts
Mentioned: 3 Post(s)
Tagged: 2 Thread(s)
|
Quote:
I have a feeling this will fall on deaf ears, but increasing the spring preload is not going to compensate for the softer swaybars. Preload does not change the rate or curve of a spring; it just changes where it starts. Your total roll resistance will remain the same as if you left the preload alone. Your perception of 'compensation' is the slightly higher threshold of initial spring movement from the additional preload. Basically you've made the car harsher without gaining any additional benefit in the handling department. The perception that increased preload improves handling simply means your spring rates are too soft. Or your swaybars are too small. Last edited by venturaII; 08-12-2015 at 03:47 PM. |
|
The Following 8 Users Say Thank You to venturaII For This Useful Post: | e1_griego (08-12-2015), fika84 (08-12-2015), GSpeed (08-12-2015), Hyper4mance2k (08-16-2015), Racecomp Engineering (08-12-2015), solidONE (08-12-2015), Ultramaroon (08-12-2015), wparsons (08-13-2015) |
08-12-2015, 08:15 PM | #39 | |
Senior Member
Join Date: Dec 2012
Drives: FR-S Whiteout
Location: California
Posts: 2,863
Thanks: 1,808
Thanked 790 Times in 611 Posts
Mentioned: 42 Post(s)
Tagged: 0 Thread(s)
|
Quote:
I've also found (butt dyno) that increasing and decreasing spring preload had an noticeable effect on handling. Jacking up my rear spring preload from 3mm to 8mm helped the rear rotate a bit better. (again, butt dyno. I have no graphs to show)
__________________
Intent > Content
cowardice is the mother of cruelty. Last edited by solidONE; 08-12-2015 at 11:02 PM. |
|
08-12-2015, 08:40 PM | #40 | |
Member
Join Date: Nov 2014
Drives: '13 Denali, '15 Volt, soon a BRZ?
Location: CLT
Posts: 61
Thanks: 3
Thanked 55 Times in 23 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
Quote:
I inferred geometric and elastic WT in the second part of my comment. But it doesn't matter what your 'setup' is you will only have so much total weight transfer for a given cg height, track/wb and vehicle acceleration. But you know that... |
|
The Following User Says Thank You to Hoosier Daddy For This Useful Post: | Racecomp Engineering (08-13-2015) |
08-12-2015, 09:36 PM | #41 | |
Senior Member
Join Date: Aug 2013
Drives: BRZ
Location: Denver, CO
Posts: 845
Thanks: 677
Thanked 396 Times in 264 Posts
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
|
Quote:
|
|
08-12-2015, 10:56 PM | #42 |
Dismember
Join Date: Mar 2013
Drives: 2013 Red Scion FR-S
Location: Castro Valley
Posts: 5,562
Thanks: 2,153
Thanked 4,002 Times in 2,157 Posts
Mentioned: 43 Post(s)
Tagged: 1 Thread(s)
|
Any thoughts on bump stop spacers to change the front/rear balance?
__________________
|
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Reducing Drone Suggestions? | JohnAyySays | Engine, Exhaust, Transmission | 7 | 04-08-2014 12:20 AM |
Reducing squeel after HPDE | transition | Suspension | Chassis | Brakes -- Sponsored by 949 Racing | 29 | 03-16-2014 01:20 PM |
Reducing Rasp | Admired | Engine, Exhaust, Transmission | 28 | 01-25-2014 01:40 PM |
Reducing engine compartment temps | mike_ekim1024 | Engine, Exhaust, Transmission | 1 | 12-11-2013 02:57 AM |
Reducing Insurance for hardly used car? | ZionsWrath | Off-Topic Lounge [WARNING: NO POLITICS] | 6 | 08-31-2013 06:35 AM |