Where to remove weight from a track only car?
#206
So i read through this thread and unless i blacked out during some of the more tedious sections and don't recall reading it, i have a question. Those of you that have gone extreme in weight savings, what difference in your lap times did it make on the track? my track car appears to have had no real effort put into weight reduction other than removing the carpet, gutting the drivers door for the door bar, and standard ditching of some interior parts. it still has the full stock passenger door with roll up window and all, somehow they made the door bars fit with that side all stock.
it's a pure track car, not street legal so to some extent i don't care what it looks like. I'm willing to start ditching parts when it gets home, but I'd like to know what kind of returns you guys are seeing from the effort. anyone have before and after weight reduction times on the same track to share?
it's a pure track car, not street legal so to some extent i don't care what it looks like. I'm willing to start ditching parts when it gets home, but I'd like to know what kind of returns you guys are seeing from the effort. anyone have before and after weight reduction times on the same track to share?
#207
Cpt. Slow
iTrader: (25)
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 14,360
Total Cats: 1,184
You'll be hard pressed to find consistent enough times in this "amateur" crowd to see what the difference 50lbs will make. Too many variables.
Instead of lap times, look at 0-60 and 60-0 times. With less mass to accelerate, in both positive and negative vectors, you'll see the biggest difference there.
Instead of lap times, look at 0-60 and 60-0 times. With less mass to accelerate, in both positive and negative vectors, you'll see the biggest difference there.
#212
you cant remove that piece for at least some groups. mine was removed from the car when I got it and and tech said I needed cover that area before the next NASA event per their rules something something gas tank and associated plumbing must be separated from the driver. it is a very light panel but i know it all adds up.
Last edited by curly; 06-12-2012 at 09:38 PM.
#214
Cpt. Slow
iTrader: (25)
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 14,360
Total Cats: 1,184
The one in the trunk covering the filler pipe can come out, the entire interior cockpit must be separated from the gas tank. Flames will wrap around a "cut in half" cover.
Spec miata guys even have some panels to more completely cover the gap:
http://www.saferacer.com/miata-cage-...?productid=545
Here Keith talks about it during his original Targa build:
http://www.targamiata.com/diary.php?UID=482
http://www.targamiata.com/diary.php?UID=483
Spec miata guys even have some panels to more completely cover the gap:
http://www.saferacer.com/miata-cage-...?productid=545
Here Keith talks about it during his original Targa build:
http://www.targamiata.com/diary.php?UID=482
http://www.targamiata.com/diary.php?UID=483
#215
unless you want to fab something you need to leave the 3 covers in place. one small one on the driver side the large main top piece and the large 90 degree pan that covers the plumbing. I would not bother trying to make something. the stock parts are light and fit well. I had to modify a NA unit to fit in my NB and it was a pain in the ***. I had to make the NA unit longer so I hacked up a second NA and added the pieces to fit the NB. I paid 15 bucks for one and got the other for free, plus several hours to cut and rivet everything together and then paint. looks pretty good but I would recommend just leaving that area alone.
#216
The one in the trunk covering the filler pipe can come out, the entire interior cockpit must be separated from the gas tank. Flames will wrap around a "cut in half" cover.
Spec miata guys even have some panels to more completely cover the gap:
http://www.saferacer.com/miata-cage-...?productid=545
Here Keith talks about it during his original Targa build:
http://www.targamiata.com/diary.php?UID=482
http://www.targamiata.com/diary.php?UID=483
Spec miata guys even have some panels to more completely cover the gap:
http://www.saferacer.com/miata-cage-...?productid=545
Here Keith talks about it during his original Targa build:
http://www.targamiata.com/diary.php?UID=482
http://www.targamiata.com/diary.php?UID=483
I would be really interested in getting an interpretation on the barrier method for fire protection...
#217
The car will be close to 1850 wet, but I'll need to ballast up to 1925.
Cheers,
Craig
PS. Re A-Arms! AWR make adjustable rear arms that are 8.5 lbs. not sure if this thread listed stock arm wt., would be nice to list that w/alternatives/wts.
Control Arm - Rear Upper Adjustable Bare - AWR Racing Store
Last edited by Ski_Lover; 07-06-2012 at 10:18 PM. Reason: Misspell