Show full size 924Board.org
Discussion Forum of 924.org
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
 Technical FAQ924 FAQ (Technical)   Technical924 Technical Section   Jump to 924.org924.org   Jump to PCA 924 Registry924 Registry

Lexan hatch swap - hard data, for reference

 
Post new topic   Reply to topic    924Board.org Forum Index -> Performance Upgrades
View previous topic :: View next topic  
Author Message
924RACR  



Joined: 29 Jul 2001
Posts: 9076
Location: Royal Oak, MI, USA

PostPosted: Tue Jul 14, 2009 1:18 am    Post subject: Lexan hatch swap - hard data, for reference Reply with quote

Helped swap in the lexan hatch onto a 944 Cup car, while on scales, yesterday... so we have hard numbers on the weight savings. It was 25lbs saved vs. the stock glass hatch. Not 50, not 75.

So, if you guys think it's worth $500 or whatever to lose 25#... better check the price on the gym membership again???
_________________
Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Shurick  



Joined: 15 May 2005
Posts: 524
Location: Russia, Moscow.

PostPosted: Tue Jul 14, 2009 1:43 am    Post subject: Reply with quote

Need to mention... 25 lbs from the top are better than 25 lbs from the bottom (e.g. driver's seat). It's all about heght of center of masses and body roll in corners. That's why the hood, roof and rear hatch are more important in lightening than tranny and engine.
_________________
WBR, Shurick
'79 931 -- intercooled K26-3060-6.10 turbo @ 1.2 bar, EFI+EDIS, 951S brakes, stripped interior, 951 look.
'86 924S -- R.I.P.
https://www.instagram.com/ru_pacecar/
Back to top
View user's profile Send private message Visit poster's website
Rasta Monsta  



Joined: 12 Jul 2006
Posts: 11733
Location: PacNW

PostPosted: Tue Jul 14, 2009 2:00 am    Post subject: Reply with quote

For comparison's sake, I lost 50 lbs for $120 (see Vaughan's suggestion above).
_________________
Toofah King Bad
  • WeiBe (1987 924S 2.5t) - 931 S3
Back to top
View user's profile Send private message Visit poster's website
TurboBullet  



Joined: 08 Feb 2009
Posts: 64
Location: Southern NJ

PostPosted: Tue Jul 14, 2009 2:28 am    Post subject: Reply with quote

how did everything bolt up Vaughan? How was Kaminsky's happy hour? Too bad you guys had to scoot so quick wanted to pick your brain on setting up the suspension on my car... It was good to meet you guys and I hopr to see you at the track in the future!
_________________
87 Porshe 924s custom widebody
Back to top
View user's profile Send private message
Shurick  



Joined: 15 May 2005
Posts: 524
Location: Russia, Moscow.

PostPosted: Tue Jul 14, 2009 2:29 am    Post subject: Reply with quote

Rasta Monsta wrote:
For comparison's sake, I lost 50 lbs for $120 (see Vaughan's suggestion above).

But my "dry" weight (without beer) is 74 kilos. I've got no options for weightsaving here...
_________________
WBR, Shurick
'79 931 -- intercooled K26-3060-6.10 turbo @ 1.2 bar, EFI+EDIS, 951S brakes, stripped interior, 951 look.
'86 924S -- R.I.P.
https://www.instagram.com/ru_pacecar/
Back to top
View user's profile Send private message Visit poster's website
Martijnus  



Joined: 29 Dec 2006
Posts: 2019
Location: Netherlands

PostPosted: Tue Jul 14, 2009 9:05 am    Post subject: Reply with quote

I always fill my fuel tank just enough to get to the next pump. Saves me more than 60 lbs (and remember, I don't know how much lbs is, but i'm sure i'll save that anyway )
_________________
"Rule: Turbo's make torque, and torque makes fun." (C. Bell)

924 "50-jahre", 1981.
MSII/extra, LPG, ITB's, 5lug.
To be turbo'ed in a while.
Killed her at the Nurburgring, Porscheless at the moment
Back to top
View user's profile Send private message Send e-mail MSN Messenger
Raceboy  



Joined: 01 Mar 2004
Posts: 2327
Location: Estonia, Europe

PostPosted: Tue Jul 14, 2009 2:46 pm    Post subject: Reply with quote

It depends on the plastic used on hatch also. Usual Lexan is pretty heavy but we are allowed to use 2mm material called Verolite and that + hatch frame makes it very light. I'll take mine to scales soon.
_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche
Back to top
View user's profile Send private message Visit poster's website MSN Messenger
924RACR  



Joined: 29 Jul 2001
Posts: 9076
Location: Royal Oak, MI, USA

PostPosted: Tue Jul 14, 2009 9:42 pm    Post subject: Reply with quote

Cheers... yeah, everything bolted right up, except that (no surprise) we had to adjust hatch pins a few times and the latch and all before we got it to open smoothly. You think it's tough trying to climb in back to pop the hatch open - you should try doing it over a rollcage!!! I had to twice...

Good call on Kaminsky's - we were NOT disappointed!! Definitely have to remember that place if/when we're back in the area, thanks!! The Jaeger chicks were there too, excellent food, and excellent beer selection.

We made out pretty well the next day; qualified 3rd (out of 7) for the enduro, finished 5th in great order, running strong, same lap times as we started with! Learned a lot about that track too. Biggest handicaps were not enough power (car not running quite right - AFM and possibly also DMEin poor shape) and too small a fuel cell resulting in too short range, had to add an extra pit stop (most did 3, we had to do 4). Still the planning etc were excellent. Classes were all screwed up, we took 2nd in class though...
_________________
Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic    924Board.org Forum Index -> Performance Upgrades All times are GMT + 10 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group