Race Prep Miata race-only chat.
Sponsored by:
Sponsored by:

Where to remove weight from a track only car?

Thread Tools
 
Search this Thread
 
Old 09-01-2010, 10:20 AM
  #101  
Senior Member
iTrader: (5)
 
baron340's Avatar
 
Join Date: Sep 2009
Location: Lompoc, CA
Posts: 577
Total Cats: 13
Default

I'd be more worried about the ungodly long hoses filled with water than getting airflow through it. I mean the Lotus crowd seems to do just fine getting airflow through the back of the car, I don't see why it couldn't be done. But all that water weight is going to add up quick.
baron340 is offline  
Old 09-01-2010, 01:05 PM
  #102  
Elite Member
iTrader: (15)
 
Midtenn's Avatar
 
Join Date: Jan 2007
Location: Murfreesboro,TN
Posts: 2,041
Total Cats: 265
Default

Originally Posted by jeff_man
pics or it didn't happen
We are working on it for a friends Solo XP S2000. We have already moved the heat exchanger for the A2W to the back.

For those worried about heat dissipation, if you use aluminum tubing under the car, it acts as an extra heat exchanger (add fins too for more surface area). We found on the XP car that the extra plumping dissipates a good amount of heat before it even gets to the heat exchanger (and that is just rubber hosing right now).

Yes, you are moving weight to the rear of car, but if you plan on the plumping under the car being part of the heat exchange, you can possible size your radiator down some as well. Thus the additional weight of the system would be minimal.

Ducting would be the big issue I see. In the XP car we are just going to put fan on there, but the car only see's 60-90 of time at full tilt.
Midtenn is online now  
Old 09-02-2010, 01:52 PM
  #103  
Junior Member
iTrader: (10)
 
bryanlow's Avatar
 
Join Date: Jan 2008
Location: SF Bay Area
Posts: 291
Total Cats: 0
Default

Nick,
Get your exhaust made out of 20ga stainless. Burns has it in stock. Also you could get your charge pipes made out of aluminum.

You've gone soooo far already, why not just go all the way:

Do it, I dare you!
bryanlow is offline  
Old 09-02-2010, 02:33 PM
  #104  
Senior Member
iTrader: (1)
 
spoolin2bars's Avatar
 
Join Date: May 2008
Location: south texas
Posts: 1,415
Total Cats: 10
Default

Originally Posted by baron340
I'd be more worried about the ungodly long hoses filled with water than getting airflow through it. I mean the Lotus crowd seems to do just fine getting airflow through the back of the car, I don't see why it couldn't be done. But all that water weight is going to add up quick.
well that's the least of our worries on our project crx. it weighs less than 1900lbs without being fully gutted. what we do worry about is the fact that it would get hot after only a few laps in the tx heat. also, we had to run a half width radiator because there isn't any room between the radiator/support and the turbo/manifold. also the piping isn't huge, it fits maybe an extra 1 gallon of water.
spoolin2bars is offline  
Old 09-02-2010, 04:23 PM
  #105  
Junior Member
iTrader: (10)
 
bryanlow's Avatar
 
Join Date: Jan 2008
Location: SF Bay Area
Posts: 291
Total Cats: 0
Default

Two piece rotors:

Only drops 1/2 lb each, but it drops it where it counts.
bryanlow is offline  
Old 09-05-2010, 01:45 AM
  #106  
Junior Member
 
jasonb's Avatar
 
Join Date: Mar 2010
Location: onion city,ca
Posts: 413
Total Cats: 2
Default

is it possible to move the 15:1 rack and pinion from the powered steering rack to the manual rack housing? the manual rack looks lighter. (i do like the 15:1 ratio so would prefer to modify rather than use 18:1 manual rack).

or, even better, were there any years with 15:1 manual rack?

EDIT: looks like a 4 lb mod. i thought it was more. ref: https://www.miataturbo.net/showpost....3&postcount=23

Last edited by jasonb; 09-05-2010 at 12:11 PM.
jasonb is offline  
Old 09-05-2010, 10:13 AM
  #107  
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,338
Total Cats: 573
Default

the question should be: does the miata rack interchange with other cars that might have a faster manual rack?
y8s is offline  
Old 09-08-2010, 10:26 PM
  #108  
Senior Member
iTrader: (1)
 
mx5autoxer's Avatar
 
Join Date: Dec 2008
Location: Manassas, Virginia
Posts: 1,242
Total Cats: 57
Default

Yeah, why arent there more track cars on here with no windshield or top?
mx5autoxer is offline  
Old 09-08-2010, 10:51 PM
  #109  
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 14,175
Total Cats: 1,129
Default

Whole different class of car, both literally and figuratively. The bad *** track cars on here have full cages, which would look retarded without a windshield. Aero reasons too I'm sure.

Edit: Can't anyone make a stock (non-locost) chassis look decent without front fenders? This looks semi-open wheel and extremely badass:


P.S. I'm also making this thread a sticky, seems logical for future viewers.
curly is offline  
Old 09-09-2010, 12:19 AM
  #110  
Elite Member
Thread Starter
iTrader: (15)
 
thesnowboarder's Avatar
 
Join Date: Sep 2007
Location: Incline Village, NV
Posts: 2,034
Total Cats: 5
Default

Originally Posted by curly
Whole different class of car, both literally and figuratively. The bad *** track cars on here have full cages, which would look retarded without a windshield.
The chump car some friends and I are building we are doing MAJOR weight savings on. We are going to see just how light we can make the thing.

We've cut out the rear shelf seatbelt towers are. Front windsheild and will be doing a **** ton of extra weight savings stuff.



Originally Posted by curly
Can't anyone make a stock (non-locost) chassis look decent without front fenders? This looks semi-open wheel and extremely badass:
Another pic, to add to the badassary thats going on in this thread.
thesnowboarder is offline  
Old 09-09-2010, 12:23 AM
  #111  
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 14,175
Total Cats: 1,129
Default

There's one on the lightweightmiata forum somewhere that is completely striped, including hood, trunk, rear quarter panels, etc. Can't find it though.
curly is offline  
Old 09-09-2010, 12:41 AM
  #112  
VladiTuned
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 35,821
Total Cats: 3,481
Default

that LS swapped car makes me *** buckets.
18psi is offline  
Old 09-09-2010, 07:50 AM
  #113  
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,085
Total Cats: 375
Default

Originally Posted by 18psi
that LS swapped car makes me *** buckets.
hustler is offline  
Old 09-09-2010, 08:04 AM
  #114  
AFM Crusader
iTrader: (19)
 
olderguy's Avatar
 
Join Date: Oct 2004
Location: Wayne, NJ
Posts: 4,666
Total Cats: 336
Default

Originally Posted by curly
There's one on the lightweightmiata forum somewhere that is completely striped, including hood, trunk, rear quarter panels, etc. Can't find it though.
Not talking about this one, are you?
Attached Thumbnails Where to remove weight from a track only car?-beast.jpg  
olderguy is offline  
Old 09-09-2010, 10:35 AM
  #115  
Elite Member
iTrader: (7)
 
jeff_man's Avatar
 
Join Date: May 2007
Location: Dallas, Tx
Posts: 3,006
Total Cats: 103
Default

Originally Posted by olderguy
Not talking about this one, are you?
do want
jeff_man is offline  
Old 09-09-2010, 07:08 PM
  #116  
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 14,175
Total Cats: 1,129
Default

I think it had a little more body in the back, and less DIY bodywork in the front. It may have just been an older version of that one. I like it though.
curly is offline  
Old 09-09-2010, 10:44 PM
  #117  
Junior Member
 
superl's Avatar
 
Join Date: Aug 2010
Posts: 55
Total Cats: 0
Default

I believe the car he's refering to can be found here... http://forum.miata.net/vb/showthread...185365&page=13
superl is offline  
Old 09-09-2010, 11:05 PM
  #118  
Junior Member
iTrader: (3)
 
Reverend Greg's Avatar
 
Join Date: Apr 2009
Location: McDonough Ga.
Posts: 350
Total Cats: -26
Default





I just got serious woods....Thank god I don't have a sawzall in my hands right now
(G)

Last edited by Reverend Greg; 09-09-2010 at 11:09 PM. Reason: add 2nd pic and dialogue and sig.
Reverend Greg is offline  
Old 09-10-2010, 12:50 AM
  #119  
Elite Member
iTrader: (7)
 
turotufas's Avatar
 
Join Date: Jul 2009
Location: Gainesville,Fl
Posts: 3,304
Total Cats: 7
Default

My response to the pictures on this page:

I'd like da 15x9 wheel, like right now do.
turotufas is offline  
Old 09-10-2010, 01:05 AM
  #120  
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 14,175
Total Cats: 1,129
Default

No it was blue, but that one is nice too. All I remember is it was basically a car with no body panels. It didn't look like it conformed to any class like the above red one, it was mariner blue, and I believe on an autocross starting grid.
curly is offline  


Quick Reply: Where to remove weight from a track only car?



All times are GMT -4. The time now is 05:34 PM.