Weight Reduction Europa S2 - Page 3 - LotusTalk - The Lotus Cars Community
 
LotusTalk.com is the premier Lotus Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 04-27-2012, 03:29 AM   #41 (permalink)
Registered User
 
JamesD's Avatar
 
Join Date: Dec 2009
Location: South Africa
Posts: 288
What battery are you running? I'm trying to drop 50 kg's on my race car and if i can find a Lithium Iron battery then i should save 8 kg's right there and then! go Lithium Iron! they like 4 or 5 times the price of lead acid but in weight reduction it is worth it....
__________________
'06 111R with Endless MX72 brake pads front and rear and Lotus Driving Academy 1:1 tuition from Martin Donnelly.
Birkin race car
'75 SP1600 Beetle: 1776 engine with engel 110 cam, 40-35 valves, high ratio rockers, pertronix ignition, duel 40 webers, remote oil cooler, disc brakes!
JamesD is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 04-30-2012, 09:16 AM   #42 (permalink)
Registered User
 
Mecky's Avatar
 
Join Date: Dec 2010
Location: Germany
Posts: 32
We use a standard Pb-battery. The battery and the water-cooler are the only things, which bring a little bit weight an the front tyres...

We have to find the weight at the back from now on. The front is already to light for braking well in rain... The wheels stand very easy
__________________
Lotus Europa Racing [Link]

Britain's Finest Racing [Link]
Mecky is offline   Reply With Quote
Old 01-15-2013, 06:33 PM   #43 (permalink)
Registered User
 
Join Date: Jan 2013
Location: Northern Nevada
Posts: 4
FYI ... I recently built a 1971 Europa S2 street car that weighed 1175 lbs. Basically, how I got mine down to under 1200 lbs is by removing weight and/or lightening everything I could. I know this sounds obvious, but it's really how to get there. This was the second S2 I've built, my first was an SCCA race car with a full roll cage. It weighed about 100 lbs more.

With the recent car, I removed unnecessary fiberglass from the body. I replaced almost all of the steel components (other than the frame) with aluminum. I removed the door windows and motors and replaced them with polycarbonate sheet.

I replaced the OEM alternator with a compact one-wire racing unit. I replaced the fuel tank with an aluminum unit available from Banks. I replaced the OEM dash with a fabricated superlight fiberglass one that looks similar, but weighs substantially less. Also the OEM seats weigh 25 lbs and I replaced them with ones weighing about 12 lbs each.

You literally have to go through every component of the car and ask the question: can I make this lighter.
timcking is offline   Reply With Quote
Old 01-21-2013, 06:54 AM   #44 (permalink)
Registered User
 
Join Date: Jan 2013
Location: Northern Nevada
Posts: 4
As a reference I weighed my 1969 Europa S2 when it was new and it weighed 1,250 lbs. When I put a roll cage in it and remove all the extraneous stuff, for racing it ended up being about the same, or 1,400 lbs with me in it. A 1971 S2 I just finished, I was able to get down to 1,175 lbs for the street. On the latter, did everything mentioned (except aluminum fasteners) along with polycarbonate side and rear windows. I used plastic replacement headlights and 3" dia. truck parking and tail lights. I replaced the OEM alternator with a small one-wire unit. Basically, everything was optimized for weight reduction. The replacement seats weighed 12-15 lbs each (the originals weight 25). This car had the 807 cross-flow engine with a 5-speed. I also fabricated a replacement dash out of fiberglass (a substantial weight reduction).
timcking is offline   Reply With Quote
Old 02-28-2013, 01:57 PM   #45 (permalink)
Registered User
 
sprocket3's Avatar
 
Join Date: Nov 2012
Location: Oregon
Posts: 954
Quote:
Originally Posted by BDA View Post
That's a new one on me, EF! I've never heard of that. Don't think I'd try it either.
Just did a search and it's not as uncommon as I thought. IF you were to use them, I would get the ones with the steel inserts.
Doesn't Porsche use these as OE. Seems like I had an 20 year old Porsche with non-steel lug bolts. I can't recall which one it was though. I had a few of them.
sprocket3 is offline   Reply With Quote
Old 02-28-2013, 08:19 PM   #46 (permalink)
Registered User
 
philethier's Avatar
 
Join Date: Jul 2008
Location: Minnesota
Posts: 2,427
Quote:
Originally Posted by timcking View Post
I weighed my 1969 Europa S2 when it was new and it weighed 1,250 lbs.
I find that extremely difficult to believe. A stock, street-trim S2 with glass windows? Sounds about 200 pounds light to me.

As I recall, the S1 was 1310.
__________________
Phil Ethier West Side Saint Paul Minnesota USA
1973 Triumph Stag LE22439UBW "uncle jack", Sapphire Blue
2004 Suburban 8.1, Sport Red, the only automatic of the bunch
2005 Lotus Elise, Bordeaux Red Pearl
2005 Subaru Legacy GT Limited, Regal Blue Pearl
http://www.mnautox.com
philethier is offline   Reply With Quote
Old 07-26-2013, 08:35 AM   #47 (permalink)
Registered User
 
Mecky's Avatar
 
Join Date: Dec 2010
Location: Germany
Posts: 32
Our S2 Race Car has now around 1480 lbs (~670 kg), which is only a bit heavier than the stock weight, which is given in the original papers (1455 lbs / 660 kg).
__________________
Lotus Europa Racing [Link]

Britain's Finest Racing [Link]
Mecky is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  LotusTalk - The Lotus Cars Community > Lotus Discussions > Other Lotus Models



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 09:10 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.3.2
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.