Weight Saving Tips & Ideas?

[Cunney]

I see alot of people on here posting about shedding various things that I would never think to touch i.e. useless brackets in the engine bay, redundant wiring...

Post your tried & tested weight saving & tidy up ideas in here...

 

[Tomo 211]

I take it this is for track use rather than on the road ?
if so, spare tyres rear seats, isofix bar passenger seat and if your mad, the dashboard

 

[Christopher]

Don't fit 2118's. lol

 

[.Kev.]

Rear door cards, rear wiper, carpets, speakers, carbon canister

And If your fat get down the gym.

 

[Cunney]

I take it this is for track use rather than on the road ?
if so, spare tyres rear seats, isofix bar passenger seat and if your mad, the dashboard

Just general tidy up / fast road / track

Obviously there's the obvious bits ^^^

I'm referring to stuff the average person wouldn't realise is disposable

 

[Cunney]

Rear door cards, rear wiper, carpets, speakers, carbon canister

Carbon Canister?

 

[.Kev.]

http://www.cliosport.net/forum/show...moval-Muppet-Style!&highlight=carbon+canister

Check this out.

 

[.Kev.]

Someone will correct me no doubt but i think It's something to do with recycling emissions and then pumping it back through the engine. EGR in a way i guess. Get shot.

 

[Cunney]

Someone will correct me no doubt but i think It's something to do with recycling emissions and then pumping it back through the engine. EGR in a way i guess. Get shot.

Is it not some sort of catch tank for all the sh1te?

 

[Skeeter]

Go on a diet and take a dump before going on track

 

[Cunney]

Go on a diet and take a dump before going on track

I'm quite a slender man, I usually hold onto the dumps just to give me some size :\

 

[.Kev.]

Is it not some sort of catch tank for all the sh1te?

Not 100% sure myself,

 

[Nick172Cup]

If you having all the interior out permanently, like all seats/all doorcards/rooflining and keeping it out then you can remove all of the sound deadening and remove any bracketry thats redundant. Also take the dash out and loose all the sound deadening behind there, there's quite a bit of it. You can also cut parts of the dash out you dont need like glovebox, cowling around the gearstick etc etc.

Few other little things...

Cut the inner boot skin out and fit aerocatches
Cut part of the under bonnet out
Loose arch liners and arch covers
Start cutting bits from the front and rear bumper, plus getting rid of all the polystyrene from behind the bumpers.

Should keep you busy! Ha

 

[Nick172Cup]

Not 100% sure myself,

You dont need it, I havent got one. There's a few pipes that can be taken from it also as well as the cannister itself.

 

[jack_kemp]

Is it not some sort of catch tank for all the sh1te?

Nope. It collects the fuel vapour that is produced when the car is stationary. Emissions reducing thing. Useless.

 

[AdamR]

Aye, got rid of mine, no problems at all. Also frees up space for brake ducts. If you want any help/tips for doing it let me know!

Here's a similar thread I made a while ago, some more suggestions in here: http://www.cliosport.net/forum/show...ng-on-a-172-Cup..&highlight=weight+saving+cup

 

[yeecup]

buy a caterham??

 

[Cunney]

buy a caterham??

buy a shoe box if that's your logic

 

[Ricardos]

Redundant wiring, so no:

Stereo and speaker wires, stereo, CD multichanger
Air con and heater control wires
Central locking
Electric windows (manual winders)
Airbag wiring and ECU
Rear wiper and wiring
Pollen filter and wiring in scuttle panel
Heater matrix

 

[p@blo]

Don't fit 2118's. lol

How come? What would you define as unacceptably heavy at the expense of rims that wont buckle?

 

[jack_kemp]

Minimising unsprung weight is critical for performance. Buy the lightest wheels you can afford IMO. Although on a road car, you've got a bit of a trade off for strength and looks.

 

[p@blo]

Granted Jack, i'm just interested to see the views on what's considered to be 'suitably' light apart from the likes of ultra/super legerras

 

[jack_kemp]

Each to their own really.... Team dynamics are pretty light too.

A lot of people don't give a crap about their wheel weight, just depends how keen you are I suppose.

 

[p@blo]

Fair one, 7kg from memory?

For the sake of 200g i think i'll stick to my non bendy speedlines

 

[marinemackay2003]

all sound deadening tar/material from all over the car

roof,under seats,footwells ect ect

 

[Cunney]

Fair one, 7kg from memory?

For the sake of 200g i think i'll stick to my non bendy speedlines

It's not 200g though, it's 200g spinning (so 5 or 6 times the weight) plus it's on all 4 corners, soon adds up!

 

[mx1_champ]

remove the ballasts at the front of the car
dry cell battery
change seats
lighter steering wheel
poly windows
remove door electrics + sound deadenin+ braces
remove dash + trim metal frame behind
digi stack dash ( replacing heavier standard clocks)

just a few that havnt been mentioned

 

[AdamR]

remove the ballasts at the front of the car

Not heard of this before... How do I go about finding the ballasts? Cheers!

 

[Ricardos]

On phase 1 models, grind most of the metal section out behind the passenger headlight. Makes it easier to change the belt and lose weight lol

 

[p@blo]

It's not 200g though, it's 200g spinning (so 5 or 6 times the weight) plus it's on all 4 corners, soon adds up!

Isn't it closer to 3 (2 if the mass was uniformly distributed rather than biased towards the outer portion of the rim)? Granted it's an extremely primitive assumption, but would 800g (all four versus say four TD 1.2's) when featuring moment of interia not be around a ~2kg difference when considering rotational mass effect for all four rims?

Putting that into context, the three rear headrests only weigh ~3kg-hardly seems a worry considering how strong the speedlines are

Presumably, OZ F1s would be worse off for me. Assuming the above, would that not equate to an extra ~21kg rotational mass differential assuming the weights listed are correct at ~9kg per rim?

 

[jack_kemp]

It's around 4x actually. But if you're searching for light rims, you'd go for 15's so the weight difference would be a lot greater.

 

[p@blo]

Would 4x not be inclusive of factoring tyre mass? Would this not be irrelevant when looking at the differential mass effect from the rims alone? Be interested to understand how you arrived at that figure if you'd care to share your train of thought?

Even if a factor of four were the case, does a net increase of ~3.2kg in inertial mass not seem somewhat insignificant for the majority of generalist fast road/trackday users? Heavy Speedlines, lol.

 

[mx1_champ]

Not heard of this before... How do I go about finding the ballasts? Cheers!

2 great big lumps of metal on the front end either end of chassis legs iirc.. i removed mine but cant remember the exact position.

 

[Cunney]

Isn't it closer to 3 (2 if the mass was uniformly distributed rather than biased towards the outer portion of the rim)? Granted it's an extremely primitive assumption, but would 800g (all four versus say four TD 1.2's) when featuring moment of interia not be around a ~2kg difference when considering rotational mass effect for all four rims?

Putting that into context, the three rear headrests only weigh ~3kg-hardly seems a worry considering how strong the speedlines are

Presumably, OZ F1s would be worse off for me. Assuming the above, would that not equate to an extra ~21kg rotational mass differential assuming the weights listed are correct at ~9kg per rim?

Way I understand it is try swinging a 2kg weight around in a circle, feels a hell of alot heavy than just walkiing with it, I agree though that for the likes of your 2118 the difference in weight saving compared to the extra strength is not really worth mentioning, but I've got Ultra Leggera Serie Rossa's so I get both strength and weight saving

 

[Cunney]

So what purpose do the ballasts serve? Just to weight the corners up?

 

[mx1_champ]

think its for vibrations iirc

 

[Fredrik L]

Just general tidy up / fast road / track

Obviously there's the obvious bits ^^^

I'm referring to stuff the average person wouldn't realise is disposable

I'm thinking along the same line, I've a 172 PhII and looking to be closer to a 172 CUP in weight terms.

- So full every day usability,
- Do 6-8 trackdays.

If it's worth the hassle is an other question



Non-cost options:

Balance weight
Tar patches
Dashboard sound deading
headlight washers
cd-changer
Rear speakers
Isofix
Carbon canister
Remove sparewheel

Cost options:

One Bucket seat (As I need backseat access, that also mean, no harness/removable harenss-bar.)
O.Z Superleggera
Battery
Xenons to Regualar headlights( Does this actually saves anything??? , I'm thinking "no
ballast")
3/4 panel/rear window(s) to poly ones.

ABS and Aircon but I kind of like those options for a road car, so that is a no no for me.

Can anyone tell how much weight each item would actually save?

 

[mx1_champ]

gettin rid of ac and other rotating mass from your engine would help.. the only thing my engine spins is the alternator.. and thats only because it has to

 

[Cunney]

I suppose things like Xenon lights the benefit of having brigther headlights outweighs the small weight gain, could you argue better vision would make your car quicker anyway

Dash Board Sound deadening is def something I need to get sorted!

 

[AdamR]

2 great big lumps of metal on the front end either end of chassis legs iirc.. i removed mine but cant remember the exact position.

Cheers man, I'll have a look... Any weight off the front has to be a bonus!