franky
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| posted on 21/6/11 at 06:15 PM |
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quote:
Originally posted by omega0684
not to steer away from teh OP'ers topic, but can anyone recommend light, grippy tyres? Are T1R's Light?
Yes. Lighter than most.
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gaz_gaz
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| posted on 21/6/11 at 06:16 PM |
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was that full cage etc?
see Chris at MNR did tell me that the later bodywork etc was lighter and i'm sure they made a fair few weigh saving between mine (number 11) and
the later ones
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INDY BIRD
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| posted on 21/6/11 at 06:31 PM |
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my zx14 mnr was tad over 500 kg wet full tank etc,
so johneturbo will be about right with extra 20kg,
thats with rear bar centre bar and side impact bars,
it will be going on a winter diet to aim for another 20kg loss which can be achieved im sure,
but 520 full cage is not terrible
i believe my old mk zx10r with full cage was tad over 480 kg half tank,
cheers
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Yazza54
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| posted on 21/6/11 at 06:53 PM |
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quote:
Originally posted by loggyboy
Sounds good, I have a fullcage on my striker and will be pleased if it weighs in under 600kg when ive finished it.
More importantly, whats the corner weights?
Your strikers a zetec though. Heavy box and engine.
My Fury was 460kg with R1 engine. Albeit no cage but it's substantially lighter than the OPs.
I'm unhappy cos I eat and I eat cos I'm unhappy
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gaz_gaz
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| posted on 21/6/11 at 08:16 PM |
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ok well i reckon theres saving to be made on the front brakes, dampers, uprights and possibly wheels
anyone know how much the stock xr4x4 brakes weigh?
also is it possible to buy the alloy uprights new or is it a case of waiting till they appear on here?
what are these m16 brakes required to work with the alloy uprights?
and lastly for now, what do people recommend for grp seats?
[Edited on 21/6/11 by gaz_gaz]
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daniel mason
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| posted on 21/6/11 at 08:52 PM |
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mnr supply a full front end.
discs,
alloy calipers
alloy hubs
new uprights, (lighter than the ally ones)
and compomotive cxr's or td pro race in 13"
also grp seats,
i would contact them and see what they can do for you.
also carbon items are avilable,
front arches
rear arches
back panel
boot cover
this wont be cheap tough!
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mcerd1
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| posted on 21/6/11 at 09:02 PM |
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quote:
Originally posted by gaz_gazanyone know how much the stock xr4x4 brakes weigh?
lots
I did have the weights somewhere but I've lost them (can weigh them again if needed)
-
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gaz_gaz
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| posted on 21/6/11 at 09:06 PM |
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i've sent MNR an email earlier so will see what they come back with,
i don't mind paying fair prices but i expect to see gains for the money,
if you have some brakes to hand that'd be smashing,
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Frosty
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| posted on 21/6/11 at 11:49 PM |
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A tad over 500kg is about right I would say. You really have to take these low weight figures with a pinch of salt as most of them are guesses, or
weighed using majorly inaccurate methods, like 2 bathroom scales joined by a plank of wood in each corner etc.
I figured my car would be really low, but it was 512kg with a full tank when on the corner weight scales. I have since added anti roll bars, and a
full cage with side impact bars, so I expect it's around 530kg now. This is 20kg that was well worth adding though.
The things that spring to mind are:
* Rear calipers - Sierra ones are heavy - there are some replacements which are under 1kg out there.
* Radiator - alloy may be lighter?
* Tyres - CR500 tyres are the lightest I have seen. Nearly 2kg lighter each than R888s IIRC.
Windscreen Wipers
Need windscreen wipers for your car? Order from a friendly kit car owner.
Don't pay a garage to do them. You built a car for God's sake - I'm sure you can fit your own wipers! 
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Yazza54
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| posted on 22/6/11 at 06:11 AM |
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Mine was corner weighted professionally
I'm unhappy cos I eat and I eat cos I'm unhappy
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richard thomas
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| posted on 22/6/11 at 07:10 AM |
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quote:
Originally posted by gaz_gaz
without me.
basically complete car with all sva bits
full cage
cobra roadster seats
protech suspension
speedline wheels
25 litres of fuel
bit of mud under the arches from driving down to the garage
usual sierra brakes, diff etc, not really sure where i can remove weight as its basic as it is.
so where can i start shedding weight?
[Edited on 21/6/11 by gaz_gaz]
[Edited on 21/6/11 by gaz_gaz]
Those seats are heavy, i replaced mine with fibreglass ones...considerably lighter although I don't know the exact weights...
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Jon Ison
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| posted on 22/6/11 at 07:17 AM |
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here, one pinch of salt.
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hughpinder
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| posted on 22/6/11 at 07:35 AM |
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I was going through all the paper I've accumulated during the design of mine and came across a copy of the report that was done for caterham for
the suspension set up of the race spec SV car. (full cage etc). If it makes you any happier that was weighed at 611kg (285front, 326rear).
Regards
Hugh
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franky
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| posted on 22/6/11 at 07:41 AM |
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quote:
Originally posted by richard thomas
quote:
Originally posted by gaz_gaz
without me.
basically complete car with all sva bits
full cage
cobra roadster seats
protech suspension
speedline wheels
25 litres of fuel
bit of mud under the arches from driving down to the garage
usual sierra brakes, diff etc, not really sure where i can remove weight as its basic as it is.
so where can i start shedding weight?
[Edited on 21/6/11 by gaz_gaz]
[Edited on 21/6/11 by gaz_gaz]
Those seats are heavy, i replaced mine with fibreglass ones...considerably lighter although I don't know the exact weights...
If you want padded lightweight seat the odyssey 11's are about half the weight of the cobra ones as they're just a padded GRP shell.
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coozer
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| posted on 22/6/11 at 07:54 AM |
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Hmm, mine was 525kg at SVA.. with a cast iron zetec and type 9.
Since then I've shaved 5kg off the Sierra calipers by putting wilwoods on, saved 6kg in an ali bellhousing and added 19kg with the full cage.
I would have thought the bike engined variaty should be well under 500kg.
1972 V8 Jago
1980 Z750
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Benzo
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| posted on 22/6/11 at 10:43 AM |
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mine comes in at 475kg dry... Blade lump and a full cage
Minimum for our 'RGB' type series over here is 560kg..
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Sam_68
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| posted on 22/6/11 at 11:58 AM |
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Mines 433kg wet and with a full tank of fuel, weighed by Autocar magazine.
But that's with a car engine and very heavy seats.
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Frosty
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| posted on 22/6/11 at 12:00 PM |
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quote:
Originally posted by Jon Ison
here, one pinch of salt.
Blimey - what's your chassis made of? Cardboard?
What was that weighed on out of interest? The reason I ask is because weigh bridges are not accurate enough on light cars because of the rounding up.
Furthermore, the split axle weighing method is not always accurate either, and this is often used.
The SVA weight of my car was MILES away from the actual weight on the corner weight scales (which is why I was suprised when it came out at 512kg when
corner weighted).
Appologies if yours was weighed on corner weight scales or something very accurate. I was merely pointing out to the OP that some of the figures you
read about are not a true reflextion of the car's actual weight. I'm certainly not calling anyone a liar.
Windscreen Wipers
Need windscreen wipers for your car? Order from a friendly kit car owner.
Don't pay a garage to do them. You built a car for God's sake - I'm sure you can fit your own wipers!
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Johneturbo
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| posted on 22/6/11 at 12:20 PM |
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quote:
Originally posted by Yazza54
Mine was corner weighted professionally
+1
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Irony
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| posted on 22/6/11 at 12:57 PM |
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I was told by a fellow I know who runs several racecars (including a cool 1970's classic F1 car he found abandoned in a Carpet showroom) that
getting the weight down is all very well but the difference handlingwise between unsprung and sprung weight is huge. He reckoned every kilo of
unsprung was worth 4kg of sprung weight.
I don't know how true this but it makes sense to me
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Antnicuk
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| posted on 22/6/11 at 01:07 PM |
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quote:
Originally posted by Sam_68
Mines 433kg wet and with a full tank of fuel, weighed by Autocar magazine.
But that's with a car engine and very heavy seats.
blimey, thats Light, do you have any pictures of your car?
600 BHP per ton, Stylus Brought back from the dead! Turbo Rotary Powered!
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matt_gsxr
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| posted on 22/6/11 at 03:29 PM |
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iiyama
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| posted on 22/6/11 at 05:05 PM |
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Mine came in @ 508Kg's with best part of a full tank and the Dax cage.
If its broke, fix it. If it aint broke, take it apart and find out how it works!
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gaz_gaz
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| posted on 22/6/11 at 08:49 PM |
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thanks for all the input guys,
i guess it weighs what it weighs,
do you think it would be realistic to think i could shed 30 kgs by replacing
uprights,(sierra)
front sierra brakes
rear sierra brakes
wheels (14" speedlines)
dampers (protech single adjustable)
seats (cobra roadster)
if there replaced with the correct items?
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daniel mason
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| posted on 22/6/11 at 09:06 PM |
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protechs are light already.
bu the rest should be do-able
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