Race Car Tech Discuss anything related to road racing and auto X.

Min weight fully prep.

Thread Tools
 
Search this Thread
 
Old 02-11-05, 05:55 PM
  #1  
Auto-X Junkie

Thread Starter
 
RussinStk's Avatar
 
Join Date: Jul 2004
Location: Stockton
Posts: 92
Likes: 0
Received 0 Likes on 0 Posts
Min weight fully prep.

For those who auto-x or road race, is it possible to prep a NA 2nd gen at or below 2000 lbs?
Old 02-11-05, 08:25 PM
  #2  
Senior Member

 
Speed Raycer's Avatar
 
Join Date: Jan 2002
Location: Missouri
Posts: 350
Likes: 0
Received 0 Likes on 0 Posts
For which class? IT, Production, GT, SP?????
Old 02-11-05, 10:27 PM
  #3  
Rotary Enthusiast

 
tims's Avatar
 
Join Date: Apr 2001
Location: North Hollywood, Ca USA
Posts: 1,289
Likes: 0
Received 0 Likes on 0 Posts
if you replaced every bolt on part with something lighter. it would be very difficult to get under 2000#'s
Old 02-12-05, 01:53 AM
  #4  
Mad Man

 
Carl Byck's Avatar
 
Join Date: Jan 2002
Location: Big Island Hawaii
Posts: 2,758
Likes: 0
Received 2 Likes on 2 Posts
Russ, call me again, we never ended up talking. Try a turbo(small for AX, Mid size for road race, and minimum weight BP car, assuming you are going to AX. You can also run it in NASA Super Unlimited, and SCCA SPO. Carl 707-696-2705
Old 02-12-05, 04:09 AM
  #5  
Auto-X Junkie

Thread Starter
 
RussinStk's Avatar
 
Join Date: Jul 2004
Location: Stockton
Posts: 92
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Speed Raycer
For which class? IT, Production, GT, SP?????
I am interested in F-prepared SCCA Auto-x which will allow the car down to 2075 with after market fuel system.

I am also considering BP with a Turbo II setup.

Thanks
Old 02-14-05, 11:38 AM
  #6  
Rotary Freak

 
owen is fat's Avatar
 
Join Date: Apr 2004
Location: Rochester, NY
Posts: 1,579
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by RussinStk
For those who auto-x or road race, is it possible to prep a NA 2nd gen at or below 2000 lbs?
I would think its possible to get an autox FC down to 2100 pounds if you do NOT need it to be street legal.
Old 02-14-05, 04:29 PM
  #7  
MPM
Senior Member

 
MPM's Avatar
 
Join Date: Aug 2003
Location: Alabama just east of B'ham
Posts: 445
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by owen is fat
I would think its possible to get an autox FC down to 2100 pounds if you do NOT need it to be street legal.
I agree. When I had to push my car in and out of the garage it felt similiar to an early miata. I could move it my myself on a small incline with not to much trouble. My car is a totally stripped 2nd gen with nothing more than an aluminum seat and a small panel for the guages inside the car. The engine compartment was as basic as it could get. Sidedraft carb, 1st gen distributor and not much more. When driving the car it was unreal how it felt when you put the brakes on no to mention how well it pulled in 3rd gear. Felt like a WOT 2nd gear pull on my daily driver.
Old 02-14-05, 06:30 PM
  #8  
Auto-X Junkie

Thread Starter
 
RussinStk's Avatar
 
Join Date: Jul 2004
Location: Stockton
Posts: 92
Likes: 0
Received 0 Likes on 0 Posts
What is the min weight for EP road race cars?

Last edited by RussinStk; 02-14-05 at 06:34 PM.
Old 02-14-05, 06:32 PM
  #9  
Senior Member

 
TrentO's Avatar
 
Join Date: Jul 2003
Location: Edmonton, AB, Canada
Posts: 408
Likes: 0
Received 0 Likes on 0 Posts
I'll tell you in a few months. My bare shell was completely stripped in an akaline bath. My dash is a section of 20 gauge aluminum, with 16 gauge for the instrument package. My goal is a full up turbo car around 2350 with driver (235 lbs) so we'll have to see how I do.

-Trent
Old 02-18-05, 08:23 AM
  #10  
trying to build a racecar

 
Travis R's Avatar
 
Join Date: Sep 2002
Location: Austin, Tx.
Posts: 580
Received 1 Like on 1 Post
I believe it's possible to get an FP 2nd gen down to 1900lbs. At least that's the assumption I'm working under.
You're going to have to do more than a regular strip job though... it'll have to include a sawzall.
Trent, I'm interested in the alkaline bath you put your car into. Does it strip everything down to the metal? Are you worried about rust in places you won't be able to paint (like inside the rocker)?
Old 02-18-05, 12:00 PM
  #11  
Rotary Enthusiast

iTrader: (1)
 
speedturn's Avatar
 
Join Date: Jul 2004
Location: Rocket City, Alabama
Posts: 1,035
Likes: 0
Received 2 Likes on 2 Posts
So far no one says they have actually done it; no one above reported hard numbers yet.

Autocross FP class allows tremendous modifications; if you took advantage of every weight reduction allowed in the rule book, you can loose a lot of weight, but it starts getting more and more expensive to get those last few pounds off.
Old 02-18-05, 12:04 PM
  #12  
Lives on the Forum

 
DamonB's Avatar
 
Join Date: Feb 2001
Location: Dallas
Posts: 9,617
Likes: 0
Received 8 Likes on 7 Posts
Back in the "real" Trans-Am days Penske used to acid dip their Camaro chassis to make them lighter.
Old 02-18-05, 12:19 PM
  #13  
Corner Carver

 
concept-R's Avatar
 
Join Date: Feb 2005
Location: On the side of the road...
Posts: 183
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Travis R
Trent, I'm interested in the alkaline bath you put your car into. Does it strip everything down to the metal? Are you worried about rust in places you won't be able to paint (like inside the rocker)?
Im interested in this too.
Old 02-18-05, 01:23 PM
  #14  
Full Member

iTrader: (2)
 
its66's Avatar
 
Join Date: Oct 2004
Location: central fl
Posts: 137
Received 6 Likes on 5 Posts
E-Prod 2nd gen weight is 2450...
Old 02-18-05, 10:30 PM
  #15  
Rotary Enthusiast

 
tims's Avatar
 
Join Date: Apr 2001
Location: North Hollywood, Ca USA
Posts: 1,289
Likes: 0
Received 0 Likes on 0 Posts
my car currently has everything stripped, fiberglass body panels, cut away doors, simple cage, and basicly only the equipment needed to race. car weighs 2300# with 1/2 load of fuel and no driver. using fiberglass doors could save a few pounds but the weight is in items like the rear suspension and front cross member. if you built some tubular control arms and a new front and rear crossmembers you could get below 2000# but the cost and engineering involved would not be worth the money. As for stripping the car with acid. this is getting harder to find because of the EPA type regulations. most car builders are using media blasting to remove paint and undercoating type products. it removes everything without damaging the metal like sand blasting does. check around town this is usually easier to find and sometimes cheaper. good luck on your project.
Old 02-19-05, 03:32 PM
  #16  
Rotary Enthusiast

iTrader: (1)
 
speedturn's Avatar
 
Join Date: Jul 2004
Location: Rocket City, Alabama
Posts: 1,035
Likes: 0
Received 2 Likes on 2 Posts
Would the tublar control arms and special cross members be SCCA legal for an E production limited prep car?
Old 02-19-05, 06:01 PM
  #17  
Rotary Enthusiast

 
tims's Avatar
 
Join Date: Apr 2001
Location: North Hollywood, Ca USA
Posts: 1,289
Likes: 0
Received 0 Likes on 0 Posts
I am not up to speed on the current production rules but I think they would be as long as it used the oem mounting locations. some of the e-production racers would know for sure. AWR had built some front control arms but I don't think they used them.
Old 02-22-05, 09:19 AM
  #18  
Senior Member

 
EProdRx7's Avatar
 
Join Date: Nov 2001
Location: Rochester NY
Posts: 576
Likes: 0
Received 0 Likes on 0 Posts
The EP weight is 2400# with an alt trans 2450#. This was for 04 but for 05 that has been changed to 2300 for the carb cars and 2350 for FI. Add 2.5% for alt. syncro ttrans and 5% for dog ring gear box. OK, so my car at the runoffs last year arrived at 2400# with driver (160#)and ~130# ballast so the weight of the car would be about 2110#. Remove the fuel cell, smaller rad. glass doors no fire system, smaller battery, lighter wheels (14# on my car), no radios or data system, rear end cooler and a lot less cage and you could very well reach the 2000# weight.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
zyph3r
Canadian Forum
10
09-16-18 07:14 PM
MILOS7
3rd Generation Specific (1993-2002)
6
05-09-16 06:39 AM



Quick Reply: Min weight fully prep.



All times are GMT -5. The time now is 06:45 AM.