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Audio Experts Please View, Lenny Requires Sound Advise


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#31 Lenny

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Posted 06 October 2013 - 06:12 PM

Will get the speaker/ shipping costs sorted - ive found some acoustic foam will sort the rest out soon
 
Update on the smart charge/ lithium battery - 
 
Iv'e been swatting up on the Ford smart charge system and basically the ECU controls the output of the alternator, boosting the voltage when the car is warming up, (using the IAT and engine temp) - it can boost the voltage as high as 16v - this is bad for the lithium battery (or for non silver calcium/ smart charge batteries) as it cant exeed 15.1v  im working on a way round this as thats a big weight saving on the (my) car  
 
Im confident the Levin will not have a smart-charge system, as it does not have an OBD port, it probably pre-dates this, so i recon you can fit the lightweight battery ok      

Thanks mate,
Hopefully its an easy fix to sort the regulator of current,
Would it be possible to remap out the smart charge feature?

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#32 Lenny

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Posted 06 October 2013 - 08:42 PM

Foca,
I've found a created and seller of fibre glass side fenders for the Levin,
Weight of original fender is 2.4kg
Weight of fibreglass fender is 1.2kg

Is it worth 240 euro including delivery to reduce the front end by 2.4kg overall?
Mixed with battery relocation I suppose it would be significant,
But as a stand alone mod do you reckon it would benefit?

.
http://s15.zetaboard...7258542/1/?x=50

#33 Lenny

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Posted 06 October 2013 - 09:02 PM

https://www.facebook.com/ae111

#34 FOCA

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Posted 06 October 2013 - 09:59 PM

Foca,
I've found a created and seller of fibre glass side fenders for the Levin,
Weight of original fender is 2.4kg
Weight of fibreglass fender is 1.2kg

Is it worth 240 euro including delivery to reduce the front end by 2.4kg overall?
Mixed with battery relocation I suppose it would be significant,
But as a stand alone mod do you reckon it would benefit?

.
http://s15.zetaboard...7258542/1/?x=50

Thats a difficult question to answer, its quite a lot of money for a small weight saving, (eg, the lighter battery is 4x the weight saving of the wings for a similar outlay) but when i removed my AC radiator (approx 4kgs) on my car i was surprised at how big a difference it made (a noticable difference to the steering) but that 4kgs was in front of the front wheels on a front-heavy car  

 

i would be surprised if you noticed any difference    



#35 Lenny

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Posted 07 October 2013 - 06:07 PM

Thats a difficult question to answer, its quite a lot of money for a small weight saving, (eg, the lighter battery is 4x the weight saving of the wings for a similar outlay) but when i removed my AC radiator (approx 4kgs) on my car i was surprised at how big a difference it made (a noticable difference to the steering) but that 4kgs was in front of the front wheels on a front-heavy car  
 
i would be surprised if you noticed any difference    

Thanks mate,
Sorry I explained badly that's 240euro including delivery for a pair of fenders,
So the total weight saving overall is 2.4kg
But as you say mate its removing weight that rests on the axle so it won't be felt on driving,
Its only things sitting beyond the axles that improve when removed,

The battery and bonnet will be the big changers,

Battery is 25kg
Relocated to the boot with a lithium battery saves 21kg

Stock bonnet weighs 22kg
Replaced with a carbon bonnet at 7 kg saves 15kg

So by relocating and replacing the battery,
Replacing bonnet with carbon one if I can find on for sale.
Will be a total saving of 36kg off the nose

38.2kg if I was to fit fenders,
Estimated 42kg if I removed A/C aswell but I like to have it lol

#36 georgen

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Posted 07 October 2013 - 06:16 PM

You will catch the loose weight bug Lenny be warned, I know someone with a mk2 golf with a 20v Turbo engine in, the windscreen is the only glass in it, the rest is polycarb, the strengthening struts from under the bonnet have gone, the inside skins and window mechs have gone, the inside of the hatch have gone, the box section on the floor the seats used to attach too have gone, it has two light weight bucket seats no carpets head liner nothing, no dashboard or heater and its taxed tested and on the road and goes like stink. 



#37 Lenny

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Posted 07 October 2013 - 07:20 PM

You will catch the loose weight bug Lenny be warned, I know someone with a mk2 golf with a 20v Turbo engine in, the windscreen is the only glass in it, the rest is polycarb, the strengthening struts from under the bonnet have gone, the inside skins and window mechs have gone, the inside of the hatch have gone, the box section on the floor the seats used to attach too have gone, it has two light weight bucket seats no carpets head liner nothing, no dashboard or heater and its taxed tested and on the road and goes like stink. 

No that's a bit extreeme for me mate,
Most I would go without on the interior is tax and mot ;)

#38 Turvey

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Posted 07 October 2013 - 08:14 PM

No that's a bit extreeme for me mate,
Most I would go without on the interior is tax and mot ;)

 

Not much weight in a tax-disc and MOT certificate  :)



#39 Lenny

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Posted 07 October 2013 - 08:17 PM

 
Not much weight in a tax-disc and MOT certificate  :)

They carry heavy fine,
Wha, wha, wha,

#40 georgen

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Posted 07 October 2013 - 08:31 PM

LOL



#41 FOCA

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Posted 07 October 2013 - 08:34 PM

Has the car got a spare tyre?  - that can often be the heaviest thing

 

Often its not the "traditional" or obvious things that are the heaviest - things like door skins are light,

 

you cannot touch the chassis now and still pass an MOT

 

The AC is a biggie because part of it is always connected/ turning, removing it is like lightening the flywheel, the AC pump & radiator is 11kgs on the Mondeo

 

The mechanical waterpump also puts an extra parasitic load on the engine - the electric one removes this

 

the wheels are part of the rotating mass so fitting the lightest ones makes a bigger difference than removing the same weight off the cahassis  

 

Ive removed 150kgs from my car, it still has all original steel panels, glass, etc, stock front seats, all original trim forward of the rear seats, including all 4 door cards, and electric window lifters, and the stock stereo and 4 speakers

 

ive kept the weight on some parts of the car to help traction

 

Ive was speaking to the MOT tester about the exhaust and i have already removed several extra bends and 3.3kgs(behind the rear wheels, so helping traction) off the exhaust but its going to be shorter, fatter, lighter and completely heatwrapped in the furure

 

its very difficult to remove weight without putting it back on again - like if you put the glass-fiber wings on, then if you fit the reinforcement stays, it makes them just as heavy as the stock wings

 

Same with "carbon fiber" bonnet, often they are acrually glass-fiber, and are often almost as heavy as the stock bonnet - i emailed a lot of "carbon fiber" bonnet manufacturers and they would not give a straight answer from most of them, the ones that did, said they could do a 7kg bonnet for £500, the stock Mondeo (mk3) weighs  18.4kgs, so saving 11.4 kgs, the "carbon" bonnet flexes a lot more than the steel one, so people often add a strut brace, probably negating the advantage - and £500 is a lot of money for a 11.4 (probably closer to 10) kgs saving

 

 

same with the door cards - rear (Mondeo) ones weigh 2kgs, if you made some out of carbon fiber they would probably weigh as much, and not be as practical, if you rivetted aluminium panels in they would probably weigh more than the stock ones

 

The (massive) stock Mondeo battery weighs 19kgs, i would be surprised if the stock Levin one was as much as that -  i swapped the 19kgs one first for a  16.4kgs one, then a 12.4kgs one, its very powerful for its size/ weight, was bought direct and only cost £50

 

Sometimes the only way is to weigh everything and do a lot of research - its a lot of hard work and can become expensive        



#42 Hassen

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Posted 07 October 2013 - 08:50 PM

Lenny, you will have to update me how the boom mats work out as I was tempted to get them once I have fund to get my Focal PS165 component speakers.

 

Foca, all the information you put up was great to read. I think I understood and learnt a thing or two from it. Gonna try to apply that to my own sound project. Thanks :)



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