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| BrianCunningham | Making C4's perform at HPDE | ||
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Senior Guru
 
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Thought you might want to look at this.
Lots of good info http://forums.corvetteforum.com/autoc ... ack-as-well-as-my-c5.html |
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Posted on: 2009/1/21 22:22
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Polo Green 95 LT1 6-spd http://mysite.verizon.net/vzevcp74/ 383 LT1/Vortech Supercharger/AFR heads/Rod end suspension/Penske-Hardbar dual rate coilovers/Wilwood 6pot brakes NCCC Governor: http://BayStateCorvetteClub.com |
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| pianoguy | Re: Making C4's perform at HPDE | ||
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Guru Emeritus
 
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That's gotta be one of the most useful threads I've seen lately there.
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Posted on: 2009/1/21 23:10
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1996 LT4 �Before you criticize someone, you should walk a mile in their shoes. That way when you criticize them, you are a mile away from them and you have their shoes.�- Jack Handey |
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| Schrade | Re: Making C4's perform at HPDE | ||
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Elite Guru
 
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Quote:
Only thing good about that thread is your pics! I don't know why people don't post pics of their stuff when they get a wrench-on. You got reference for re-assembly, AND, if you ever give up the car, you got photo-doc'ed and dated records, which will ADD $ value to the price. Plus you're helpin' other owners.  |
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Posted on: 2009/1/22 0:55
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LT5, Marc Haibeck ECM module, AUTOMATIC!!! 
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| CentralCoaster | Re: Making C4's perform at HPDE | ||
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Senior Guru
 
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He didn't take any. Those are my pics.
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Posted on: 2009/1/22 0:57
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1985 Z51, ZF6 |
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| Schrade | Re: Making C4's perform at HPDE | ||
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Elite Guru
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Quote:
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Posted on: 2009/1/22 1:12
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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| 85L98-84L83 | Re: Making C4's perform at HPDE | ||
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Guru Newb
 
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Good lord! Why bring that CF stuff here. It's like going on vacation and your neighbors from home are staying in the same hotel. Leave the CF crap over there. Its bad enough that they banned me now it has followed me over here.
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Posted on: 2009/1/22 1:40
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85 vette - 3.54 gears,pulleys,160 stat,hypertech chip,K&N,no cat,B&B cat back,cut air lid,TB bypass,air pump elim pulley,air foil,Torque thrust II wheels,maaco paint job 84 vette - K&N,renegade,2 inch TB's,adustable fuel pressure to 15 psi,air pump e... |
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| Matatk | Re: Making C4's perform at HPDE | ||
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Webmaster
 
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Why bring valuable information to a forum about corvettes??? Andy has always invited cross posting about good information. It's the bickering we don't want here. I don't see any of that. Besides, half the people that posted in that thread are also members here. I don't see a problem there. Matthew |
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Posted on: 2009/1/22 2:12
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| BrianCunningham | Re: Making C4's perform at HPDE | ||
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Senior Guru
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Mine are still in a box  Thought you wouldn't mind me sharing. |
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Posted on: 2009/1/22 4:12
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Polo Green 95 LT1 6-spd http://mysite.verizon.net/vzevcp74/ 383 LT1/Vortech Supercharger/AFR heads/Rod end suspension/Penske-Hardbar dual rate coilovers/Wilwood 6pot brakes NCCC Governor: http://BayStateCorvetteClub.com |
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| CentralCoaster | Re: Making C4's perform at HPDE | ||
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Senior Guru
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Did you get the cone shims too?
BTW, I threw some of those rod ends away and bought these type: http://www.speedwaymotors.com/X-SERIE ... 5and8-18-SHANK-1and2-HOLE,10571.html Some of the ones provided are metal on metal and will start squeaking within a few months. Or wow, look at these pretty ones:  |
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Posted on: 2009/1/22 7:00
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1985 Z51, ZF6 |
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| CentralCoaster | Re: Making C4's perform at HPDE | ||
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Senior Guru
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Quote:
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Posted on: 2009/1/22 7:27
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| Skidmarks | Re: Making C4's perform at HPDE | ||
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Guru
 
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That's really some fascinating reading.
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Posted on: 2009/1/22 16:19
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Dirt is for racing. Pavement is for getting to the track. |
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| BillH | Re: Making C4's perform at HPDE | ||
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The Stig Moderator
 
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Good to know they have the different thread/bore sizes. They aren't shown in the Speedway catalog. |
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Posted on: 2009/1/22 17:23
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Every man dies but not every man lives. |
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| CentralCoaster | Re: Making C4's perform at HPDE | ||
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Senior Guru
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Well, don't take that to the bank. I don't recall off hand exactly what sizes the kit used.
I could figure it out pretty easily though. It's all either 1/2 or 5/8" or some combination thereof. Some had a liner, some didn't. Even the ptfe lined ones give me a bit of noise because they're sticky, but nothing like the squeaking from metal on metal. |
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Posted on: 2009/1/22 18:11
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| SpectatorRacing | Re: Making C4's perform at HPDE | ||
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Elite Guru
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There's some know-it-all jerk over there telling people to plan before spending money...
I've had good luck so far with my Speedway heims. I think it was Bill that pointed me there last summer. Many races, no slop. They were the $27 versions. I think I have at least 8 races and the appropriate number of qualifying and practice sessions on them now. Maybe more. And Speedy Bob sends me nice emails every week  |
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Posted on: 2009/1/22 21:15
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| BrianCunningham | Re: Making C4's perform at HPDE | ||
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Senior Guru
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I'll have to check out my rodends, I was going to put boots on mine so I could keep them greased and keep the dirt out.
BTW thoughts on this? (not from the same thread) [QUOTE]redrose: do NOT consider the C4 rear suspension as a "4-link", it is NOT...the C4 rear suspension is a "torque arm" (vaguely similar to pre-1955 chev "torque tube" design or recent circle track "fifth coil" designs (less the coil), but differing from those as outer bearings (spindles) are divorced from the torque arm, on the C4...there is NO engine torque input to the C4 rear spindles, thus no chassis reaction (squat) caused by spindle controls (dogbones), under acceleration/decel--the torque arm (aka "C-beam), alone, does ALL "engine torque" input to the chassis...the dogbone/rear spindle does act as a "brake floater" and WILL input during braking, only.[/QUOTE] Quote:
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Posted on: 2009/1/22 22:05
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Polo Green 95 LT1 6-spd http://mysite.verizon.net/vzevcp74/ 383 LT1/Vortech Supercharger/AFR heads/Rod end suspension/Penske-Hardbar dual rate coilovers/Wilwood 6pot brakes NCCC Governor: http://BayStateCorvetteClub.com |
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| BrianCunningham | Re: Making C4's perform at HPDE | ||
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Senior Guru
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I asked him to elaborate:
[QUOTE]redrose: not saying that... analysis must be made thru "instant center" of the "torque arm" for chassis reactions due to engine torque during accel/decel, not thru "dogbone" IC....note that the C4 "torque arm" is the total of partial engine length+trans+C-beam+diff, and is connected to the chassis on BOTH ends (engine mounts in front, batwing mounts in rear) with engine torque applied "in between". "camber gain", as "weight transfer" causes the rear wheels of an IRS design to move in "jounce", is not normally referred to as "squat", but "should" be considered...again, not a "dogbone" function. "braking" reactions from "brake floaters" (not exactly what these are as "floaters" are free-running on solid rears, but refer to floaters for info search) DO transmit thru the dogbones (circle track racers DO vary the IC of left/right "floater links" to control "set" on corner entry under braking)[/QUOTE] |
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Posted on: 2009/1/23 4:17
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Polo Green 95 LT1 6-spd http://mysite.verizon.net/vzevcp74/ 383 LT1/Vortech Supercharger/AFR heads/Rod end suspension/Penske-Hardbar dual rate coilovers/Wilwood 6pot brakes NCCC Governor: http://BayStateCorvetteClub.com |
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| BillH | Re: Making C4's perform at HPDE | ||
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The Stig Moderator
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Quote:
I just got the new SpeedWay this week, another addition to the pile in the bathroom. I wish SpeedWay would list the radial load ratings on the rod ends. And I'd like to know who they're getting them from because I think the quality on these is all over the place. I don't get emails from Speedy Bob, seems I "unintentionally" seem to mispell my email address when I order catalogs. |
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Posted on: 2009/1/23 15:33
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Every man dies but not every man lives. |
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| BillH | Re: Making C4's perform at HPDE | ||
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The Stig Moderator
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Mucho gum flapping with no pertinent information. The camber gain in the rear is because the links (upper and lower) are different lengths, simple. |
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Posted on: 2009/1/23 15:42
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Every man dies but not every man lives. |
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| CentralCoaster | Re: Making C4's perform at HPDE | ||
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Senior Guru
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Angles affect it to, but yeah that's pretty much it. I'd rather eat rocks than try and sort through what you quoted.
Equal length parallel links = no camber change except due to body roll. |
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Posted on: 2009/1/23 16:18
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1985 Z51, ZF6 |
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| BrianCunningham | Re: Making C4's perform at HPDE | ||
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Senior Guru
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Cliff note: IF I understand this correctly chassis reaction under accel is pretty much designed in and pretty hard to change but the braking reaction is adjustable through the dogbones. |
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Posted on: 2009/1/23 19:53
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Polo Green 95 LT1 6-spd http://mysite.verizon.net/vzevcp74/ 383 LT1/Vortech Supercharger/AFR heads/Rod end suspension/Penske-Hardbar dual rate coilovers/Wilwood 6pot brakes NCCC Governor: http://BayStateCorvetteClub.com |
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| Jeffvette | Re: Making C4's perform at HPDE | ||
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Elite Guru
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Quote:
Depends. If somebody is only planning on doing HPDE's there is no need to get all sorts of trick stuff. Just make sure the car is in good operating order, and have decent pads and you will be fine. Too many people get it in their head that they need this, they need that to go do a HPDE. I think most lose the site it's to go out and have fun, pretend you are a race car driver and actually learn how to drive a car at 8/10. I can't tell you how many people I pass that have all of this trick stuff and then they are surprised when somebody else passes them or is on their ass in a corner with a stock car. |
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Posted on: 2009/1/23 20:23
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| BrianCunningham | Re: Making C4's perform at HPDE | ||
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Senior Guru
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As pointed out in the other thread
There's getting the car to perform then there's getting the driver to perform |
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Posted on: 2009/1/23 20:28
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Polo Green 95 LT1 6-spd http://mysite.verizon.net/vzevcp74/ 383 LT1/Vortech Supercharger/AFR heads/Rod end suspension/Penske-Hardbar dual rate coilovers/Wilwood 6pot brakes NCCC Governor: http://BayStateCorvetteClub.com |
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| BillH | Re: Making C4's perform at HPDE | ||
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The Stig Moderator
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Plus, they spend big bucks on the trick chit and almost $0 on safety equipment. |
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Posted on: 2009/1/23 21:09
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Every man dies but not every man lives. |
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| Jeffvette | Re: Making C4's perform at HPDE | ||
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Elite Guru
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Quote:
What, using a leather football helmet from the 40's is not safe??? |
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Posted on: 2009/1/23 22:06
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| BillH | Re: Making C4's perform at HPDE | ||
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The Stig Moderator
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I remember about a year and a half ago when I was still lurking in the RR section over there, a guy with a C6 actually said that he was going to use his bicycle helmit for a HPDE and thought it would be perfectly safe. |
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Posted on: 2009/1/24 14:57
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Every man dies but not every man lives. |
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| BrianCunningham | Re: Making C4's perform at HPDE | ||
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Senior Guru
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OMG
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Posted on: 2009/1/24 19:44
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Polo Green 95 LT1 6-spd http://mysite.verizon.net/vzevcp74/ 383 LT1/Vortech Supercharger/AFR heads/Rod end suspension/Penske-Hardbar dual rate coilovers/Wilwood 6pot brakes NCCC Governor: http://BayStateCorvetteClub.com |
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| CentralCoaster | Re: Making C4's perform at HPDE | ||
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Senior Guru
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Wow. Maybe he could skip out on seat belts too and just wrap his gold chain around the headrest while he's at it. |
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Posted on: 2009/1/26 5:39
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