Welcome to the North American Subaru Impreza Owners Club Sunday July 13, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC General > Motorsports

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 05-11-2011, 07:59 PM   #1
RallyImprezive
Scooby Specialist
 
Member#: 5476
Join Date: Apr 2001
Chapter/Region: RMIC
Location: Castle Rock, Colorado
Vehicle:
2007 WRX UGM
2010 FXT

Default Need advice for 24 hour endurance race.

On June 11th-12th, I will be competing in a ChumpCar 24 hour endurance race with my 1995 Impreza 1.8L.

My questions are these:

1. What motor oil would you run for this type of race?

2. What transmission oil (manual) would you use?

3. What would you put in the rear diff?

4. What spare parts would you bring?
- I already have a left and right front knuckle with hub and fresh bearings.
- I already have 4 CV/axels. One for each corner.


Keep in mind that rules prohibit any performance modifications, but if you have any other suggestions, please, feel free.

Thanks NASIOC!

- Andy

Team website is here: www.rallyimprezive.com check the "BLOG" for all the work I have done on the car.
* Registered users of the site do not see these ads.
RallyImprezive is offline   Reply With Quote
Old 05-11-2011, 08:28 PM   #2
eastcoastbumps
Scooby Guru
 
Member#: 29201
Join Date: Nov 2002
Chapter/Region: NESIC
Location: Shrewsbury, MA
Vehicle:
BMW M3
Honda S2000x2

Default

Use something heavy for motor oil and install an oil cooler if you can. Get the motor warmed up well before going out on track. I've had good luck with Redline Ultralight Shockproof transmission oil. Can't go wrong with Subaru Extra-S either. I'd use Extra-S in the rear diff as well.

Install the knuckles with the new bearings on the car and keep the good used ones as spares.

I'd bring spare rod bearings and head gaskets. j/k. It should be fun.
eastcoastbumps is offline   Reply With Quote
Old 05-11-2011, 08:46 PM   #3
RallyImprezive
Scooby Specialist
 
Member#: 5476
Join Date: Apr 2001
Chapter/Region: RMIC
Location: Castle Rock, Colorado
Vehicle:
2007 WRX UGM
2010 FXT

Default

Quote:
Originally Posted by eastcoastbumps View Post
Use something heavy for motor oil and install an oil cooler if you can. Get the motor warmed up well before going out on track. I've had good luck with Redline Ultralight Shockproof transmission oil. Can't go wrong with Subaru Extra-S either. I'd use Extra-S in the rear diff as well.

Install the knuckles with the new bearings on the car and keep the good used ones as spares.

I'd bring spare rod bearings and head gaskets. j/k. It should be fun.
Thanks for the info! If Extra-S was easy to get, id have some already! Its pretty much the only drink my 04 STi likes. I dont know much about the 1.8L tranny, and what type of diffs it uses, but you think the Redline would be ok with whatever front and center diff is in there?

And the hubs on the car also have fresh bearings.

Oh, and some people DO bring spare motors to these races. Ive been considering buying another cheap impreza and stealing parts as needed during the race, lol.
RallyImprezive is offline   Reply With Quote
Old 05-11-2011, 09:52 PM   #4
eastcoastbumps
Scooby Guru
 
Member#: 29201
Join Date: Nov 2002
Chapter/Region: NESIC
Location: Shrewsbury, MA
Vehicle:
BMW M3
Honda S2000x2

Default

I raced 24h of Lemons last week in New Hampshire. My teams' E30 blew a motor. Bring a spare motor if you can. I'm sure Chump is just as fun.

My 5spd WRX loved Redline. The trans shifted a lot better with it than the Extra-S or any other fluid.
eastcoastbumps is offline   Reply With Quote
Old 05-11-2011, 11:02 PM   #5
RallyImprezive
Scooby Specialist
 
Member#: 5476
Join Date: Apr 2001
Chapter/Region: RMIC
Location: Castle Rock, Colorado
Vehicle:
2007 WRX UGM
2010 FXT

Default

Quote:
Originally Posted by eastcoastbumps View Post
I raced 24h of Lemons last week in New Hampshire. My teams' E30 blew a motor. Bring a spare motor if you can. I'm sure Chump is just as fun.

My 5spd WRX loved Redline. The trans shifted a lot better with it than the Extra-S or any other fluid.
Ahhh the infamous E30 huh?
At least in Chump they are infamous.

Cool to hear you have done 24h Lemons, so you know what I am getting into!
RallyImprezive is offline   Reply With Quote
Old 05-11-2011, 11:08 PM   #6
Homemade WRX
Scooby Guru
 
Member#: 33782
Join Date: Mar 2003
Chapter/Region: MAIC
Location: 3MI Racing LLC
Vehicle:
96 bastard child
search FIRST, then PM!!!

Default

I ran Uncle Scotty's cocktail for years in my 1.8 trans. It was living behind a VF39'ed EJ205 swap. I ran redline shockproof heavy, not light.

IIRC it calls for 3.7 qts and with the redline (gorilla snot) I ran the full 4 qts.
Homemade WRX is offline   Reply With Quote
Old 05-11-2011, 11:59 PM   #7
rjrutzky
Scooby Specialist
 
Member#: 30367
Join Date: Nov 2002
Chapter/Region: South East
Location: nashville, tn
Vehicle:
2005 Legacy GT
NASA SE PTB Champ

Default

bring a case of head gaskets
rjrutzky is offline   Reply With Quote
Old 05-12-2011, 02:01 AM   #8
NSFW
Scooby Guru
 
Member#: 140444
Join Date: Feb 2007
Chapter/Region: NWIC
Location: Near Seattle, WA
Vehicle:
05 Stage Free LGT
ATP 3076, 6MT, AVO FMIC

Default

Spare motor is honestly not a bad idea. I've been to two ChumpCar race weekends (18 hour and 14 hour) and seen several teams do motor swaps. My team brought a spare for our first race, and I still question the wisdom of not bringing a spare to the second race. We didn't need one, but the Chevette next to us did. And the team on the other side of us almost did after they lost coolant and overheated. What if?

Unless you already have a clear picture of how quickly your car consumes brakes, I suggest a couple extra sets of brake pads.

Bring jugs of distilled water, in case you need to top off the radiator, or refill after a hose blows. And bring spare radiator hoses too. That's also kinda common.

Plan your pit stops up front, and make a spreadsheet that shows who's doing what for each pit stop. We just rotate the names on each line, so everybody does everything over the course of the race. That way everyone knows what they need to do when the car comes in:

Driver out
Driver in
Seatbelter (lengthen belts after first driver gets out, connects everything for next driver)
Fuel jug (has to be fireproof - might as well get in to drive at the next pitstop)
Fire extinguisher
Windshield washer (should also adjust mirrors for new driver)

If you come in for fuel, they won't let you leave the pits for five minutes. If the driver isn't forced to wait for at least a few seconds at the pit exit, your team is taking too long.

The seatbelter job might sound silly, but it's hard to see the belts and fasteners when you're wearing a full-face helmet and a collar or HANS. And you don't want to waste time fishing belts out from under your ass right after you sit down. And then lengthening them after you find out they're too short.
NSFW is offline   Reply With Quote
Old 05-12-2011, 02:21 AM   #9
DJSuperSoul
Scooby Specialist
 
Member#: 120004
Join Date: Jul 2006
Chapter/Region: NWIC
Location: beavertron
Vehicle:
2xx8 STI
grey

Default

well, i have blown 3 motors in Lemons / chump.

advice: tear it apart and put in some new gaskets, maybe arp headstuds. run it at a track day, and re-torque.

get an oil cooler. if nothing else it adds oil capacity.

don't worry about speed. worry about reliability. keep it simple.

have all of your tools clearly labeled. you might lose some otherwise. also put them away immediately after use.

brakes / wheel bearings: have extra hard parts, and fluid to bleed your brakes. bring 4 rotors, 4 pads at minimum. you may never go through them, but if you are in BFE and don't have them...
DJSuperSoul is offline   Reply With Quote
Old 05-12-2011, 11:12 AM   #10
Homemade WRX
Scooby Guru
 
Member#: 33782
Join Date: Mar 2003
Chapter/Region: MAIC
Location: 3MI Racing LLC
Vehicle:
96 bastard child
search FIRST, then PM!!!

Default

If I were you, I'd seriously cut a giant slanting hole in the hood and make some DIY ducting from behind the radtior to pull out over the hood...

think Evo or WRC car...or all those fmic hoods. Ducting up the front of the radiator to make that high pressure air stay behind the bumper and going through the radiator!!
Homemade WRX is offline   Reply With Quote
Old 05-12-2011, 11:16 AM   #11
RallyImprezive
Scooby Specialist
 
Member#: 5476
Join Date: Apr 2001
Chapter/Region: RMIC
Location: Castle Rock, Colorado
Vehicle:
2007 WRX UGM
2010 FXT

Default

thanks for all the input. Its nice to see so many folks that have run the crap can events.

So I think I am pretty clear on what spares I need (basically a second car)

So how about the fluids? I imagine having good oils can go a long way. Suggestions?
RallyImprezive is offline   Reply With Quote
Old 05-12-2011, 11:41 AM   #12
Turn in Concepts
NASIOC Vendor
 
Member#: 93646
Join Date: Aug 2005
Chapter/Region: MWSOC
Vehicle:
Many Track Records
Let us help you go fast!

Default

Quote:
Originally Posted by RallyImprezive View Post
On June 11th-12th, I will be competing in a ChumpCar 24 hour endurance race with my 1995 Impreza 1.8L.

My questions are these:

1. What motor oil would you run for this type of race?

2. What transmission oil (manual) would you use?

3. What would you put in the rear diff?

4. What spare parts would you bring?
- I already have a left and right front knuckle with hub and fresh bearings.
- I already have 4 CV/axels. One for each corner.


Keep in mind that rules prohibit any performance modifications, but if you have any other suggestions, please, feel free.

Thanks NASIOC!

- Andy

Team website is here: www.rallyimprezive.com check the "BLOG" for all the work I have done on the car.
1) Motul 20-60 leman oil
2) Motul gear300
3) What rear diff do you have in it?
4) Alxles, extra oil, extra brake pads, extra rotors, EXTRA LUG NUTS!, extra wheel bearings (Ideally already assembled in uprights to cut down on swap time)


5) check all bushings and such beforehand. Anything that has a decent number of hours on it should be replaced beforehand

6) Every single suspension bolt should be pulled out, the threads cleaned and antiseized in case you have to pull it apart in the pit.

if you do not have a radio in the car get one.

I know this one is going to seem odd, but get a water bottle with a straw. it's for the driver to have a drink while refueling. It's a total time waster if he has to take his helmet off to take a drink.
Turn in Concepts is offline   Reply With Quote
Old 05-12-2011, 11:43 AM   #13
Homemade WRX
Scooby Guru
 
Member#: 33782
Join Date: Mar 2003
Chapter/Region: MAIC
Location: 3MI Racing LLC
Vehicle:
96 bastard child
search FIRST, then PM!!!

Default

Motul if you have money to drop on zee beater that'll probably pop for other reasons.

Rotella 5w-40 synthetic is a great bang for the buck oil. It's in my current lemons car. Just put it in last weekend.
Homemade WRX is offline   Reply With Quote
Old 05-12-2011, 12:38 PM   #14
RallyImprezive
Scooby Specialist
 
Member#: 5476
Join Date: Apr 2001
Chapter/Region: RMIC
Location: Castle Rock, Colorado
Vehicle:
2007 WRX UGM
2010 FXT

Default

Forgot about Rotella, I have run that stuff in my dirt bike with great results. Hmmmm.

The rear diff is whatever comes stock on these old things.
RallyImprezive is offline   Reply With Quote
Old 05-12-2011, 12:45 PM   #15
Homemade WRX
Scooby Guru
 
Member#: 33782
Join Date: Mar 2003
Chapter/Region: MAIC
Location: 3MI Racing LLC
Vehicle:
96 bastard child
search FIRST, then PM!!!

Default

open 4.11:1 unless it's one of the notorious factory freaks.
Homemade WRX is offline   Reply With Quote
Old 05-12-2011, 01:09 PM   #16
RallyImprezive
Scooby Specialist
 
Member#: 5476
Join Date: Apr 2001
Chapter/Region: RMIC
Location: Castle Rock, Colorado
Vehicle:
2007 WRX UGM
2010 FXT

Default

Open. Awesome. I think its 3.9 though. How can I double check? Im guessing there is a part number on there somewhere.
RallyImprezive is offline   Reply With Quote
Old 05-12-2011, 02:30 PM   #17
Homemade WRX
Scooby Guru
 
Member#: 33782
Join Date: Mar 2003
Chapter/Region: MAIC
Location: 3MI Racing LLC
Vehicle:
96 bastard child
search FIRST, then PM!!!

Default

pull the back diff cover and count...or calculate it all back based off of a GPS mph and what your car says its doing.

EVERY ej18 I've worked on/owned was a 4.11:1. I actually just met a guy (teh whit) that has an GC2 chassis but came with 3.9:1...he took a pic of the ring and pinion to proove it to me. Sean (speedyham) was the other way. His 96 GM4 (ej22) should have been 3.9 but was (is?) a 4.11...

I swear Subaru use to run out of correct parts on the assembly line and would just toss something in to get it off the line


Did you guys at least add a rear swaybar from something, ANYTHING?!!!
Homemade WRX is offline   Reply With Quote
Old 05-12-2011, 03:40 PM   #18
RallyImprezive
Scooby Specialist
 
Member#: 5476
Join Date: Apr 2001
Chapter/Region: RMIC
Location: Castle Rock, Colorado
Vehicle:
2007 WRX UGM
2010 FXT

Default

Quote:
Originally Posted by Homemade WRX View Post
pull the back diff cover and count...or calculate it all back based off of a GPS mph and what your car says its doing.

EVERY ej18 I've worked on/owned was a 4.11:1. I actually just met a guy (teh whit) that has an GC2 chassis but came with 3.9:1...he took a pic of the ring and pinion to proove it to me. Sean (speedyham) was the other way. His 96 GM4 (ej22) should have been 3.9 but was (is?) a 4.11...

I swear Subaru use to run out of correct parts on the assembly line and would just toss something in to get it off the line


Did you guys at least add a rear swaybar from something, ANYTHING?!!!

Yea, I found a pdf that lists drive ratios for every subaru known to man, and between 93-98 they went back and forth with different ratios. I was looking to buy a spare motor and tranny from a 94, but it is a 4.11:1, and my 95 is a 3.9:1. Bastards.

I have replaced the front and rear brakes with 1998 Legacy GT 2.5 take-offs, and that is within the 2x rule for brakes. I also got lateral links and rear sway from an RS. I will get penalized laps for that, but i am confident it will be totally worth it.
RallyImprezive is offline   Reply With Quote
Old 05-12-2011, 03:43 PM   #19
Homemade WRX
Scooby Guru
 
Member#: 33782
Join Date: Mar 2003
Chapter/Region: MAIC
Location: 3MI Racing LLC
Vehicle:
96 bastard child
search FIRST, then PM!!!

Default

yeah, no rear bar is sooooooo terrible in that car
Homemade WRX is offline   Reply With Quote
Old 05-13-2011, 02:40 AM   #20
oem
Scooby Newbie
 
Member#: 330
Join Date: Sep 1999
Location: Ca
Default Chump Car

I finished a 24 hr chump car eariler this year. We only opened the hood of the car once about two hours into the race to check the temps ...which were perfect. We had planned on doing an oil/spark plug change, during a safety hour, but when we inspected the oil it still looked good. I attribute the success of the car to great pre-race prep...checking all the bolts, changing all the fluids and leak down on the motor. For your questions.

1. What motor oil would you run for this type of race?

We used Rotella T (same oil I use in my dodge cummings, plus it is $14 a gallon )

2. What transmission oil (manual) would you use?

one quart Subaru ATF, three quarts B&G Ultraguard...in a WRX trans

3. What would you put in the rear diff? We removed it but i would use B&G Ultraguard

4. What spare parts would you bring?
- I brought spark plugs, oil, brake pads, air filters, gas (55 gallon drums and 5 gallon cans), plus my buddy drove his GC to the track and I would have parted it in a second )

Also looking at your set up I would move your Hellas to a location higher then your bumper...several teams lost their lights to rocks and other debris during the night...we are thinking about moving the lights to our roof for our next 24 hr.

Good luck and be sure to have several cameras or HD cards to capture all the mishaps during the race.
oem is offline   Reply With Quote
Old 05-13-2011, 03:33 AM   #21
NSFW
Scooby Guru
 
Member#: 140444
Join Date: Feb 2007
Chapter/Region: NWIC
Location: Near Seattle, WA
Vehicle:
05 Stage Free LGT
ATP 3076, 6MT, AVO FMIC

Default

Quote:
Originally Posted by oem View Post
Good luck and be sure to have several cameras or HD cards to capture all the mishaps during the race.
These!

We had a GoPro on the hood for a while and facing backward for a while. On the hood is cool until the track gets wet, then you can't see ****. Next time we're putting a camera inside the car so you can see and hear the driver flailing and cursing and stuff.
NSFW is offline   Reply With Quote
Old 05-13-2011, 10:10 AM   #22
RallyImprezive
Scooby Specialist
 
Member#: 5476
Join Date: Apr 2001
Chapter/Region: RMIC
Location: Castle Rock, Colorado
Vehicle:
2007 WRX UGM
2010 FXT

Default

Quote:
Originally Posted by oem View Post
I finished a 24 hr chump car eariler this year. We only opened the hood of the car once about two hours into the race to check the temps ...which were perfect. We had planned on doing an oil/spark plug change, during a safety hour, but when we inspected the oil it still looked good. I attribute the success of the car to great pre-race prep...checking all the bolts, changing all the fluids and leak down on the motor. For your questions.

1. What motor oil would you run for this type of race?

We used Rotella T (same oil I use in my dodge cummings, plus it is $14 a gallon )

2. What transmission oil (manual) would you use?

one quart Subaru ATF, three quarts B&G Ultraguard...in a WRX trans

3. What would you put in the rear diff? We removed it but i would use B&G Ultraguard

4. What spare parts would you bring?
- I brought spark plugs, oil, brake pads, air filters, gas (55 gallon drums and 5 gallon cans), plus my buddy drove his GC to the track and I would have parted it in a second )

Also looking at your set up I would move your Hellas to a location higher then your bumper...several teams lost their lights to rocks and other debris during the night...we are thinking about moving the lights to our roof for our next 24 hr.

Good luck and be sure to have several cameras or HD cards to capture all the mishaps during the race.
Thanks for all the great tips! And thanks for taking the time to check out the website and make recommendations on what you saw.
I was gonna put that 3M stone-guard type stuff on the hellas, but maybe I should move them. Damnit, I just finished making that bracket!

If you dont mind me asking, what motor are you running?
edit: nevermind, I found your thread about that.

Last edited by RallyImprezive; 05-13-2011 at 10:25 AM.
RallyImprezive is offline   Reply With Quote
Old 05-13-2011, 10:24 AM   #23
RallyImprezive
Scooby Specialist
 
Member#: 5476
Join Date: Apr 2001
Chapter/Region: RMIC
Location: Castle Rock, Colorado
Vehicle:
2007 WRX UGM
2010 FXT

Default

Quote:
Originally Posted by Turn in Concepts View Post
1) Motul 20-60 leman oil
2) Motul gear300
3) What rear diff do you have in it?
4) Alxles, extra oil, extra brake pads, extra rotors, EXTRA LUG NUTS!, extra wheel bearings (Ideally already assembled in uprights to cut down on swap time)


5) check all bushings and such beforehand. Anything that has a decent number of hours on it should be replaced beforehand

6) Every single suspension bolt should be pulled out, the threads cleaned and antiseized in case you have to pull it apart in the pit.

if you do not have a radio in the car get one.

I know this one is going to seem odd, but get a water bottle with a straw. it's for the driver to have a drink while refueling. It's a total time waster if he has to take his helmet off to take a drink.
I wish I had more money to spend at Turn in Concepts. I have always appreciated your involvement in the Subaru community, and I'd love to give you more business!

Thanks for the tips, I have heard several times now that a second set of lug nuts is a good thing. So I will buy some today.

Ive got the spare knuckles ready to go with bearings and hubs installed.

Military communications specialist is working on the radio equipment.

We have 3 camelpacks which will be kept full of water, and switched during pits when needed. Probably zip-tied to the cage.


Pretty much every suspension bolt has been replaced, haha. The car was a flood salvage, so lots of bolts snapped during installation of struts, lateral-links, etc. Bolts that I did not have to remove, I did anyway, and either broke them and replacement them, or ran them through a wire wheel and added a dab of anti-seize.

Most bushings are ok, but replacing them with anything but OEM, adds value to the car, which docks me laps.

RallyImprezive is offline   Reply With Quote
Old 05-13-2011, 10:35 AM   #24
RallyImprezive
Scooby Specialist
 
Member#: 5476
Join Date: Apr 2001
Chapter/Region: RMIC
Location: Castle Rock, Colorado
Vehicle:
2007 WRX UGM
2010 FXT

Default

OEM: You may very well have THE LOWEST member number to post ratio.
RallyImprezive is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Need advice for 24 hour endurance race. RallyImprezive Normally Aspirated Powertrain 5 05-13-2011 10:41 AM
I need a new 24 Hours of LeMons penalty H.K. Phooey Off-Topic 59 03-24-2011 03:00 PM
Anyone work for 24 hour fitness?? wayoutwest Southern California Impreza Club Forum -- SCIC 1 12-15-2003 01:11 AM
Hmm. Left my dome light on for 24 hours... Siper2 New England Impreza Club Forum -- NESIC 9 04-05-2002 12:39 PM


All times are GMT -4. The time now is 03:45 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.