Difference between revisions of "Weight reduction"

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__NOTOC__
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{| border=1 cellpadding=5 cellspacing=2
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|-
 +
| Original Weight (kg) || Aftermarket product and weight (kg)
 +
|-
 +
| colspan=2 |
 +
 +
=== Brakes ===
 +
|-
 +
| S1 MMC 2.9 kg/each || EBC 6 kg
 +
|-
 +
| || S1 Eliseparts Ali Bells 5.245kg/each
 +
|-
 +
| || S1 EBC (Grooved) 5.605kg/each
 +
|-
 +
| || S1 Pagid (plain) 5.790Kg/each
 +
|-
 +
| S2 Drilled 5.9 kg/each || Ali bells 5.0 kg
 +
|-
 +
| colspan=2 |
 +
 +
=== Exhaust ===
 +
|-
 +
| S1 Standard 20 kg || S1 Eliseparts Sport Exhaust 8 kg
 +
|-
 +
|  K series standard manifold 3.3kg flexi pipe 3.4kg || k series full stainless steel 4-1 manifold 8kg
 +
|-
 +
| S1 Standard Manifold 3.285kg, S1 Standard Flexi Pipe 3.425kg  || S1 Janspeed 4-2-1 small bore w/flexi 6.575kg
 +
|-
 +
|  || S1 Eliseparts 4" SCRP 2.335kg
 +
|-
 +
|  || S1 Eliseparts 5" SCRP 2.235kg
 +
|-
 +
|  || S1 Eliseparts 5" Sports Exhaust 7.985kg
 +
|-
 +
| colspan=2 |
 +
 +
=== Steering/Suspension ===
 +
|-
 +
| S1 Front Ball Joint Mount 332g/Each  || Eliseparts Aluminium Ball Joint Mount 122g/Each
 +
|-
 +
| S1 (Early) Steering Arm 368g/Each  ||
 +
|-
 +
| S1 (Later) Steering Arm ???g/Each || Eliseparts Lightweight Aluminium Steering Arm 300g/Each
 +
|-
 +
| colspan=2 |
 +
 +
=== Engine ===
 +
|-
 +
| S1 Rear Engine Mount 854g || S1 Eliseparts Adjustable Engine Mount 462g
 +
|-
 +
| S1 Magneti Marelli Alternator 5.075Kg || S1 Eliseparts Lightweight 'K' Series Alternator (steel pulley) 3.230Kg
 +
|-
 +
| colspan=2 |
 +
 +
=== Interior ===
 +
|-
 +
| S1 Standard Leather Seats, without Sub-frame 6.170Kg/Each || Probax Motorsport (Harness Hole) Seats, without Sub-frame 7.355Kg/Each
 +
|-
 +
| B5 Tillett seat with panels without brackets 5.5kg /Each || B7 Tillett FIA approved seat with head pad, without brackets 3.7kg/Each
 +
|-
 +
| colspan=2 |
 +
 +
=== Wheels ===
 +
|-
 +
| S1 Standard Steel Wheel Nuts ~42g/Each (x16/ 704g) || Eliseparts Lightweight Wheel Nuts ~22g/Each (x16/ 374g)
 +
|-
 +
|  ||
 +
|-
 +
| colspan=2 |
 +
 +
=== Door ===
 +
|-
 +
| S2 w/o ali beam complete: 15.1kg || 
 +
|-
 +
|-
 +
| S2 window mech.: 1.375kg ||
 +
|-
 +
| S2 window winder: 120g ||
 +
|- 
 +
| S2 mirror fixing triangle: 355g ||
 +
|- 
 +
| S2 mirror: 405g ||
 +
|- 
 +
| S2 seal window: 302g ||
 +
|- 
 +
| S2 inner trim (plastic+leather): 705g ||
 +
|-
 +
| S1 Door beam (inc hinge) : 4450g || S1 Door beam (modified, centre machined out) : 2850g
 +
|-
 +
|}
 +
 
==Elise Weight Reduction==
 
==Elise Weight Reduction==
 +
 +
S1 Alarm Fob 20 grams
 +
 +
 +
'''Carbon clams''' are hideous money compared to the weight saved, and don't save much at all unless they are autoclaved or vacuum formed. Benetec CF Front Clam 4.95 kg Vs std at 15 kg but cost £58k :( Benetec CF Rear Clam 7,2kg
 +
 +
 +
Be very wary of '''polycarbonate side screens'''. They are very flexible and, with the roof fitted, flare out dramatically at speeds above 60MPH.
 +
 +
Early '''rear arch liners''' are 2.8 kg. Later liners are lighter.
 +
 +
 +
Removing the GRP where the reversing light and fog lights are, along with the grilles and the reversing light saves about 1 kg.
 +
 +
 +
The '''rubber seals around all four wheel arch liners''' (assuming you haven't ditched the arch liners) are about 200g each, and most of the boot lid seal can be removed with just token parts left in to prevent rattle giving about 1  kg of saving.
 +
 +
 +
 +
'''Exhaust''' Exige/111R Catback: 13 kg. Stage 1: 11.8 kg (saves 1.2 kg). Stage 2: 8.2 kg (saves 4.8 kg). Quicksilver Titanium: 5.2 kg (saves 7.8 kg)
 +
 +
 +
 +
'''S1 Weight Reduction'''
 +
 +
 +
-13,4 kg Carbon fibre track seats (1,8 kg vs 8.5 kg) x2
 +
 +
 +
-12.5 kg Titanium Exhaust system (std 16 kg vs 3.5 kg)
 +
 +
 +
-11.2 kg MMC discs instead of iron disks (2.7 kg vs 5.5 kg each)
 +
 +
 +
-11,1 KG TRM FSL001 instead of std AWI 5 spoke Wheels (20,7kg vs 31.8 kg)
 +
 +
 +
-9,9kg Race battery (www.voltphreaks.com or www.braillebattery.com) (1,36 kg vs 11.35 kg)
 +
 +
 +
-9.25kg 1/2 size alloy fuel tank
  
  
 +
-7.25 kg Lexan front window (5 kg vs 12.25 kg)
  
  
−
Lots of weight to be had from mag wheels, 5.5kg and 7kg - 8>10kg lighter than many Elise wheel sets
+
-6.8 kg Speedline Magnesium instead of std AWI 5 spoke (25 kg vs 31.8 kg)
  
  
 +
-6.55 kg Alloy Fuel Tank
  
−
Carbon clams are hideous money compared to the weight saved, and dont save much at all unless they are auto claved or vacuum formed.
 
  
 +
-4.4 kg Carbon fibre fixed seat frames(2 kg and 3 kg vs 0.3 kg)
  
−
A solid manifold might save you a bit over the standard one if you haven't changed that yet (the Piper solid 4-2-1 is about 7kg) and the adjustable engine steady bar required with it is abouit 1kg lighter than the standard rubber one.
 
  
 +
-4.4 kg Remove the door reinforcement on 2 doors
  
−
Be very wary of poly side screens. They are very flexible and with the roof fitted flare out dramatically at speeds above 60MPH.
 
  
−
Early rear arch liners are 2.8kg. Later liners are lighter.
+
-4 kg Remove radio and speakers (radio ~1.4 kg speakers ~1.6 kg)
  
  
−
Removing the GRP where the reversing light and fog lights are, along with the grilles and the reversing light saves about 1kg.
+
-3.695 kg Soft top and mountings (Top 1.807 kg, siderails 1.888 kg)
  
  
−
Don't forget to remove your front mudflaps that are 0.5kg a pair (extra drag as well!) and the leather sill covers that are 1kg.
+
-3.3 kg Lightweight Flywheel
  
  
−
Alarm siren is 400g, horn a bit less.
+
-2.71 kg Cat Replacement Pipe (flexi stainless) (1.587 kg Vs 4.3 kg) mild steel 1.8 kg
  
−
passanger subframe is ~2kg and the adjustable driver's one is ~3kg. The seat on its own is around ~8kg
 
  
 +
-2.55 kg Lightweight alternator (3.35 kg vs 5.9 kg)
  
−
The footwell divider is 8o0g and if you can sort an alternative footrest then theres a saving there, and the gearstick and handbrake covers are ~600g. Pass footrest can go too 400g .
 
  
 +
-2.2 kg Billet aluminium crankshaft pulley
  
−
Standar steering wheel is 1.8kg and a raceparts quick release one (inc the relese mech is 750g (but you need to weld a spline onto the end of the column).
 
  
 +
-2.136 kg Back window
  
  
−
The ali boot lit is about 2kg lighter than the GRP one.
+
-2 kg Alu top engine mount
  
  
−
The rubber seals around all four wheel arch liners (assuming you haven't ditched the arch liners) are about 200g each, and most of the boot lid seal can be removed with just token parts left in to prevent rattle giving about 1kg of saving.
+
-2 kg 2x Leather sill covers
  
  
 +
-1.994 kg Rollbar cover
  
−
Exhaust Exige/111R Catback: 13kg. Stage 1 11.8Kg(saves 1.2KG), Stage 2 8,2Kg(saves 4.8KG), , Quicksilver Titanium 5,2KG(saves 7,8KG)
 
  
 +
-1.697 kg Heat shield baggage compartment
  
−
S1 Weight Reduction (from diffrent sites)
 
  
 +
-1,59 kg CF undertray insted of alu std
  
−
S1 Weight Reduction
 
  
−
-13Kg Carbon fibre track seats (2kg vs 8.5 kg) x2
+
-1.388 kg Dressed baggage compartment
  
−
-12,5kg Titanium Exhaust system(std 16kg Vs 3.5Kg)
 
  
−
-11,2kg MMC discs insteard of Iron disks (2,7Kg vs 5,5Kg each)
+
-1.329Kg Original Airbox and filter
  
−
-8.65kg Race battery (2.7 vs 11.35)
 
  
−
-6,8Kg Speedline Magnesium instead of std AWI 5 spoke (25kg vs 31,8kg)
+
-1 kg Eliseparts Lightweight Wheel studs
  
−
-6.55K Alloy Fuel Tank
 
  
−
-4.4kg Remove the door renforcement on 2 doors
+
-1 kg Carbon fibre steering wheel (1.7 kg vs 0.7 kg)
  
−
-4kg Remove Radio And speakers (Radio ~1,4Kg speakers ~1,6Kg)
 
  
−
-3,3Kg Lightweight Flywheel
+
-0,9 kg Elisparts solid 4-2-1 manifold (5,8 kg vs std 6,7 kg)
  
−
-2.55Kg Lightweight alternator (3.35 kg vs 5.9kg)
 
  
−
-2,5Kg Cat Replacement Pipe (1.8Kg Vs 4,3Kg)
+
-0,9 kg Carbon fibre side mirrors instead of std
  
−
-2,2Kg Billet Aluminium Crankshaft pulley
 
  
−
-2Kg Alu top engine mount
+
-0.872 kg Alu ball joint mounts (1.308 kg vs 0.436 kg)
  
−
-1Kg Carbon fibre steering wheel (1.7kg vs 0.7kg)
 
  
−
-0.55kg Remove passenger footrest  
+
-0.8 kg Footwell divider
 +
 
 +
 
 +
-0,83 kg lexan back window instead of std glass
 +
 
 +
 
 +
-0.6 kg Handbrake and gear stick cover
 +
 
 +
 
 +
-0.562 kg Pair of Alu Verniers instead of std iron pulleys(570g v.s. 298g each)
 +
 
 +
 
 +
-0.53 kg Passenger footrest  
 +
 
 +
 
 +
-0.5 kg Front Mud flaps
 +
 
 +
 
 +
-0.4 kg Alarm siren
 +
 
 +
 
 +
-0.23 kg Inner Rear view mirror
  
−
-0.23kg Inner Rear view mirror
 
  
 
-1/2 of std Lightweight Starter Motor  
 
-1/2 of std Lightweight Starter Motor  
  
−
-2/3 of std Polycarbonate/perspect rearscreen/sidescreens/frontscreen
 
  
−
-?kg Elispart solid 4-2-1 mainfold 6kg std?kg
+
-2/3 of std Polycarbonate / perspex rear/side/front screen
 +
 
 +
plastic boot lid stay 865g
 +
 
 +
2 x plastic floor mats 160g
 +
 
 +
passenger foot rest 535g
 +
 
 +
charcoal canister and pipes 625g
 +
 
 +
rear grills 310g
 +
 
 +
removal of fibre glass behind fog/reverse lights 370g
 +
 
 +
speakers including wiring 1220g
 +
 
 +
plastic speaker mounts behind seats 525g
  
−
===Other Sorces of Information===
+
plastic wiper motor guard 60g
  
−
[http://forums.seloc.org/member.php?action=viewpro&member=SteveB  SteveB]
+
rear wheel arch liners 2300g
 +
 
 +
plastic booy drain pipe 225g
 +
 
 +
front brake disc splash guards 210g
 +
 
 +
radio and surround 1760g
 +
 
 +
front grill 275g
 +
 
 +
handbrake trim surround 240g
 +
 
 +
Aerial and lead 160g
 +
 
 +
gear stick surround trim 325g
 +
 
 +
alarm siren 370g
 +
 
 +
rubber trim from rear wheel arches and boot lid 140g
 +
 
 +
interior side pads 2000g
 +
 
 +
boot bag 1435g
 +
 
 +
heat insulation/sound deadening in boot 1495g
 +
 
 +
boot divider Ali 1295g
 +
 
 +
rear under tray (homemade Carbon fibre) reduced by 900g
 +
 
 +
Rear boot tray 1620g
 +
 
 +
heat shield above exhaust (below boot tray) 1885g
 +
 
 +
misc nuts bolts cables ties etc 445g
 +
 
 +
passenger seat & belt 9725g
 +
 
 +
remove cat and replace with CRP 2725g
 +
 
 +
battery replaced by varley red top 6100g
 +
 
 +
battery bracket and breather piper 200g
 +
 
 +
S1 fibreglass engine cover inc grills 4550g
 +
 
 +
S1 Aluminium engine cover inc grills 4155g (395g saving)
 +
 
 +
 
 +
===Other sources of Information===
 +
 
 +
[http://forums.seloc.org/m/SteveB  SteveB]
  
 
http://www.340r.net/technical/weight/weight.htm
 
http://www.340r.net/technical/weight/weight.htm
  
−
http://forums.seloc.org/viewthread.php?tid=91178
+
http://forums.seloc.org/t/91178
  
 
http://www.elisetalk.com/forums/showthread.php?t=27701
 
http://www.elisetalk.com/forums/showthread.php?t=27701
  
−
[http://www.eliseparts.com/shop/index.php?main_page=index&cPath=128 Elise Parts Weight Reduction Section]
+
[http://www.eliseparts.com/shop/index.php?main_page=index&cPath=128 Eliseparts Weight Reduction Section]
 +
 
 +
 
 +
[[Category:Lotus Elise]]
 +
[[Category:S1]]
 +
[[Category:S2]]

Latest revision as of 22:05, 30 August 2019


Original Weight (kg) Aftermarket product and weight (kg)

Brakes

S1 MMC 2.9 kg/each EBC 6 kg
S1 Eliseparts Ali Bells 5.245kg/each
S1 EBC (Grooved) 5.605kg/each
S1 Pagid (plain) 5.790Kg/each
S2 Drilled 5.9 kg/each Ali bells 5.0 kg

Exhaust

S1 Standard 20 kg S1 Eliseparts Sport Exhaust 8 kg
K series standard manifold 3.3kg flexi pipe 3.4kg k series full stainless steel 4-1 manifold 8kg
S1 Standard Manifold 3.285kg, S1 Standard Flexi Pipe 3.425kg S1 Janspeed 4-2-1 small bore w/flexi 6.575kg
S1 Eliseparts 4" SCRP 2.335kg
S1 Eliseparts 5" SCRP 2.235kg
S1 Eliseparts 5" Sports Exhaust 7.985kg

Steering/Suspension

S1 Front Ball Joint Mount 332g/Each Eliseparts Aluminium Ball Joint Mount 122g/Each
S1 (Early) Steering Arm 368g/Each
S1 (Later) Steering Arm ???g/Each Eliseparts Lightweight Aluminium Steering Arm 300g/Each

Engine

S1 Rear Engine Mount 854g S1 Eliseparts Adjustable Engine Mount 462g
S1 Magneti Marelli Alternator 5.075Kg S1 Eliseparts Lightweight 'K' Series Alternator (steel pulley) 3.230Kg

Interior

S1 Standard Leather Seats, without Sub-frame 6.170Kg/Each Probax Motorsport (Harness Hole) Seats, without Sub-frame 7.355Kg/Each
B5 Tillett seat with panels without brackets 5.5kg /Each B7 Tillett FIA approved seat with head pad, without brackets 3.7kg/Each

Wheels

S1 Standard Steel Wheel Nuts ~42g/Each (x16/ 704g) Eliseparts Lightweight Wheel Nuts ~22g/Each (x16/ 374g)

Door

S2 w/o ali beam complete: 15.1kg
S2 window mech.: 1.375kg
S2 window winder: 120g
S2 mirror fixing triangle: 355g
S2 mirror: 405g
S2 seal window: 302g
S2 inner trim (plastic+leather): 705g
S1 Door beam (inc hinge) : 4450g S1 Door beam (modified, centre machined out) : 2850g

Elise Weight Reduction

S1 Alarm Fob 20 grams


Carbon clams are hideous money compared to the weight saved, and don't save much at all unless they are autoclaved or vacuum formed. Benetec CF Front Clam 4.95 kg Vs std at 15 kg but cost £58k :( Benetec CF Rear Clam 7,2kg


Be very wary of polycarbonate side screens. They are very flexible and, with the roof fitted, flare out dramatically at speeds above 60MPH.

Early rear arch liners are 2.8 kg. Later liners are lighter.


Removing the GRP where the reversing light and fog lights are, along with the grilles and the reversing light saves about 1 kg.


The rubber seals around all four wheel arch liners (assuming you haven't ditched the arch liners) are about 200g each, and most of the boot lid seal can be removed with just token parts left in to prevent rattle giving about 1 kg of saving.


Exhaust Exige/111R Catback: 13 kg. Stage 1: 11.8 kg (saves 1.2 kg). Stage 2: 8.2 kg (saves 4.8 kg). Quicksilver Titanium: 5.2 kg (saves 7.8 kg)


S1 Weight Reduction


-13,4 kg Carbon fibre track seats (1,8 kg vs 8.5 kg) x2


-12.5 kg Titanium Exhaust system (std 16 kg vs 3.5 kg)


-11.2 kg MMC discs instead of iron disks (2.7 kg vs 5.5 kg each)


-11,1 KG TRM FSL001 instead of std AWI 5 spoke Wheels (20,7kg vs 31.8 kg)


-9,9kg Race battery (www.voltphreaks.com or www.braillebattery.com) (1,36 kg vs 11.35 kg)


-9.25kg 1/2 size alloy fuel tank


-7.25 kg Lexan front window (5 kg vs 12.25 kg)


-6.8 kg Speedline Magnesium instead of std AWI 5 spoke (25 kg vs 31.8 kg)


-6.55 kg Alloy Fuel Tank


-4.4 kg Carbon fibre fixed seat frames(2 kg and 3 kg vs 0.3 kg)


-4.4 kg Remove the door reinforcement on 2 doors


-4 kg Remove radio and speakers (radio ~1.4 kg speakers ~1.6 kg)


-3.695 kg Soft top and mountings (Top 1.807 kg, siderails 1.888 kg)


-3.3 kg Lightweight Flywheel


-2.71 kg Cat Replacement Pipe (flexi stainless) (1.587 kg Vs 4.3 kg) mild steel 1.8 kg


-2.55 kg Lightweight alternator (3.35 kg vs 5.9 kg)


-2.2 kg Billet aluminium crankshaft pulley


-2.136 kg Back window


-2 kg Alu top engine mount


-2 kg 2x Leather sill covers


-1.994 kg Rollbar cover


-1.697 kg Heat shield baggage compartment


-1,59 kg CF undertray insted of alu std


-1.388 kg Dressed baggage compartment


-1.329Kg Original Airbox and filter


-1 kg Eliseparts Lightweight Wheel studs


-1 kg Carbon fibre steering wheel (1.7 kg vs 0.7 kg)


-0,9 kg Elisparts solid 4-2-1 manifold (5,8 kg vs std 6,7 kg)


-0,9 kg Carbon fibre side mirrors instead of std


-0.872 kg Alu ball joint mounts (1.308 kg vs 0.436 kg)


-0.8 kg Footwell divider


-0,83 kg lexan back window instead of std glass


-0.6 kg Handbrake and gear stick cover


-0.562 kg Pair of Alu Verniers instead of std iron pulleys(570g v.s. 298g each)


-0.53 kg Passenger footrest


-0.5 kg Front Mud flaps


-0.4 kg Alarm siren


-0.23 kg Inner Rear view mirror


-1/2 of std Lightweight Starter Motor


-2/3 of std Polycarbonate / perspex rear/side/front screen

plastic boot lid stay 865g

2 x plastic floor mats 160g

passenger foot rest 535g

charcoal canister and pipes 625g

rear grills 310g

removal of fibre glass behind fog/reverse lights 370g

speakers including wiring 1220g

plastic speaker mounts behind seats 525g

plastic wiper motor guard 60g

rear wheel arch liners 2300g

plastic booy drain pipe 225g

front brake disc splash guards 210g

radio and surround 1760g

front grill 275g

handbrake trim surround 240g

Aerial and lead 160g

gear stick surround trim 325g

alarm siren 370g

rubber trim from rear wheel arches and boot lid 140g

interior side pads 2000g

boot bag 1435g

heat insulation/sound deadening in boot 1495g

boot divider Ali 1295g

rear under tray (homemade Carbon fibre) reduced by 900g

Rear boot tray 1620g

heat shield above exhaust (below boot tray) 1885g

misc nuts bolts cables ties etc 445g

passenger seat & belt 9725g

remove cat and replace with CRP 2725g

battery replaced by varley red top 6100g

battery bracket and breather piper 200g

S1 fibreglass engine cover inc grills 4550g

S1 Aluminium engine cover inc grills 4155g (395g saving)


Other sources of Information

SteveB

http://www.340r.net/technical/weight/weight.htm

http://forums.seloc.org/t/91178

http://www.elisetalk.com/forums/showthread.php?t=27701

Eliseparts Weight Reduction Section

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