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> Lots of questions..., need input
FASTFATBOY
post Mar 31 2011, 03:02 PM
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First off thanks for all the help so far, first HPDE went great. Was bumped to intermediate on day two and was allowed to solo, with the brakes smoked lol!

The car will get the following mods before the next HPDE. Car is a 99 six speed z28.

C6 front brakes
Cooling ducts
Pcs power steering pump and cooler
Rear swaybar (maybe)
Bar and belts (maybe)

I will add more questions as I think of them, to start.....

On the brake conversion I will use Kore3 stuff, I already have track brackets... do I use c5 or c6 rotors?
Where is the cheapest source for rotors and Hawk pads? Do I need special rotors such as dba?

What pad do I use on the front? I used dtc30 on front and HP+ on rear with stock calipers Use the same stuff with the conversion?

Cooling ducts....

Cheapest parts source. Do I use the black or Orange hose? Can I use the foglight holes for air intake? If so what do you use to go behind it? If not what duct to go into the air deflector under the car? I will use Blaine Fab ducts on the rotors.

Crotch belt, stock belts and 5 point harnesses with WS6 seats...

Put a hole in the seat bottom for the crotch belt? Trim shop do this? Pics?

To use both sets of belts, anyone seen an eyebolt the same thread as the factory bolt? That way I can clip the lap belts in and out in the factory location. Will that work? Will it clear the seat bottom?

The car does have some push,oversteer. Has a 1le bar on the front and a stock rear bar.what rear bar would compliment the front one? Has all UMI roto joints on the rear.

EDIT....

What underdrive pulley? I was told to stay away from ASP. This should help the PS.

Thanks guys.

This post has been edited by FASTFATBOY: Mar 31 2011, 03:58 PM
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Casey_SS
post Apr 1 2011, 02:08 AM
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FATBOY - welcome to the addiction (IMG:http://www.frrax.com/rrforum/style_emoticons/default/smile.gif) You seem to be going down the exact same path I took (same parts selection, etc.) so here's where I ended up:

Brakes - C6 rotors from www.racingbrake.com - same price as rockauto.com but much tighter quality control. Wilwood EXP 600 fluid - I was boiling the ATE stuff. Carbotech XP10 front, HPS rear - tried XP12 & XP16s and like the feel of the 10s better...plus they're cheaper. Wilwood proportioning valve - I had to dial the rears down pretty low to get rid of brake hop. I used regular orange ducts but wrapped them with gaffer's tape - they've lasted 3 years with no issues, largely because gaffer's tape is badass (IMG:http://www.frrax.com/rrforum/style_emoticons/default/smile.gif) I mounted NACA ducts from www.ioportracing.com to the front airdam with some wire mesh in front. On an LT1 car at least, I couldn't route them to the foglight holes without ripping out everything behind the bumper, which I didn't want to do at the time. Everyone says it should overheat from doing that but it runs around 210 in Texas heat with an oil cooler in front of the ac condenser and a power steering cooler behind the stock radiator. All with a motor making over 400rwhp. (IMG:http://www.frrax.com/rrforum/style_emoticons/default/dunno.gif)

Safety - I would strongly recommend an FIA-approved seat and properly mounted harness along with a HANS device. May seem like overkill in DE but impacts are impacts and they don't care what class you're in. I half-assed my seat and harness (always wore a HANS though) for a while but it always made me nervous and things I've seen since make me feel really lucky I never "tested" that setup.

Suspension - I really like Sam Strano's 35mm front bar with the stock 19mm rear bar. This is with the Eibach LT1 (650/160) springs and Koni Yellows....your results may vary. Unless the car is doing something you really don't like and it doesn't sound like that's the case, I wouldn't change anything aside from alignment settings for a while. Some guys change suspension stuff like underwear looking for a magic setup but once the car is reasonably balanced - there isn't one. It's all about seat time.

Hope this helps...
Casey
AIX #29
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FASTFATBOY
post May 1 2011, 06:49 PM
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QUOTE (Casey_SS @ Apr 1 2011, 02:08 AM) *
FATBOY - welcome to the addiction (IMG:http://www.frrax.com/rrforum/style_emoticons/default/smile.gif) You seem to be going down the exact same path I took (same parts selection, etc.) so here's where I ended up:

Brakes - C6 rotors from www.racingbrake.com - same price as rockauto.com but much tighter quality control. Wilwood EXP 600 fluid - I was boiling the ATE stuff. Carbotech XP10 front, HPS rear - tried XP12 & XP16s and like the feel of the 10s better...plus they're cheaper. Wilwood proportioning valve - I had to dial the rears down pretty low to get rid of brake hop. I used regular orange ducts but wrapped them with gaffer's tape - they've lasted 3 years with no issues, largely because gaffer's tape is badass (IMG:http://www.frrax.com/rrforum/style_emoticons/default/smile.gif) I mounted NACA ducts from www.ioportracing.com to the front airdam with some wire mesh in front. On an LT1 car at least, I couldn't route them to the foglight holes without ripping out everything behind the bumper, which I didn't want to do at the time. Everyone says it should overheat from doing that but it runs around 210 in Texas heat with an oil cooler in front of the ac condenser and a power steering cooler behind the stock radiator. All with a motor making over 400rwhp. (IMG:http://www.frrax.com/rrforum/style_emoticons/default/dunno.gif)

Safety - I would strongly recommend an FIA-approved seat and properly mounted harness along with a HANS device. May seem like overkill in DE but impacts are impacts and they don't care what class you're in. I half-assed my seat and harness (always wore a HANS though) for a while but it always made me nervous and things I've seen since make me feel really lucky I never "tested" that setup.

Suspension - I really like Sam Strano's 35mm front bar with the stock 19mm rear bar. This is with the Eibach LT1 (650/160) springs and Koni Yellows....your results may vary. Unless the car is doing something you really don't like and it doesn't sound like that's the case, I wouldn't change anything aside from alignment settings for a while. Some guys change suspension stuff like underwear looking for a magic setup but once the car is reasonably balanced - there isn't one. It's all about seat time.

Hope this helps...
Casey
AIX #29



Casy I am looking on Racingbrake.com and I cant find a plain C6 rotor, only slotted. I was told to put a plain rotor on. Thought?
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Posts in this topic
FASTFATBOY   Lots of questions...   Mar 31 2011, 03:02 PM
trackbird   C6 rotors are more durable than the C5's, so I...   Mar 31 2011, 03:42 PM
Alien   QUOTE (trackbird @ Mar 31 2011, 10:42 AM)...   Mar 31 2011, 04:04 PM
Blainefab   QUOTE (trackbird @ Mar 31 2011, 08:42 AM)...   Mar 31 2011, 06:44 PM
FASTFATBOY   Bird, there's no rear bar to compliment the 1l...   Mar 31 2011, 04:12 PM
trackbird   QUOTE (FASTFATBOY @ Mar 31 2011, 12:12 PM...   Mar 31 2011, 06:31 PM
trackbird   And for some points of reference, I ran my 3rd gen...   Mar 31 2011, 06:46 PM
Blainefab   QUOTE (FASTFATBOY @ Mar 31 2011, 08:02 AM...   Mar 31 2011, 07:00 PM
FASTFATBOY   Doh! I meant push/UNDERSTEER. The abs was ino...   Mar 31 2011, 08:19 PM
FASTFATBOY   Alien, I can take any criticism. I am, in fact ver...   Mar 31 2011, 08:59 PM
Casey_SS   FATBOY - welcome to the addiction You seem to be...   Apr 1 2011, 02:08 AM
FASTFATBOY   QUOTE (Casey_SS @ Apr 1 2011, 02:08 AM) F...   May 1 2011, 06:49 PM
nape   You don't know what crappy brakes are until yo...   Apr 1 2011, 06:49 AM
FASTFATBOY   Ok, the general consensus seems to be I don't ...   Apr 1 2011, 03:18 PM
trackbird   There is still a benefit to the C5 stuff. It is be...   Apr 1 2011, 04:13 PM
FASTFATBOY   Just bought a C6 kit from Kore3 with stainless hos...   Apr 1 2011, 05:40 PM
mitchntx   QUOTE (FASTFATBOY @ Apr 1 2011, 12:40 PM)...   Apr 1 2011, 07:22 PM
trackbird   No prop valve needed specifically for the brakes. ...   Apr 1 2011, 06:27 PM
FASTFATBOY   Mitch, that a track only setup? Brake ducts, yes...   Apr 1 2011, 08:55 PM
GlennCMC70   Mitch's set-up is being used for track only. H...   Apr 1 2011, 09:16 PM
mitchntx   QUOTE (GlennCMC70 @ Apr 1 2011, 04:16 PM)...   Apr 1 2011, 11:19 PM
FASTFATBOY   Thanks Glen, and to all of you guys, I know I ask ...   Apr 1 2011, 09:26 PM
mesospeedy   Glad to hear you enjoyed your weekend. I know how...   Apr 1 2011, 11:09 PM

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