Hellfire
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| posted on 19/9/05 at 05:43 PM |
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quote:
Originally posted by marc n
quote:
Hmmm, sounds to me like those figures quoted are VERY optimistic. Chassis and running gear on MNR aren't too dissimilar to those of a MAC#1 or
MK.
hellfire using your mk as a referance
chassis is t45 / cds thinwall mix, weight saving to erw 35 kilos, compared to our standard chassis. dont forget we have a proper integral cage as a
stressed member that is structual not bolted.
wishbones t45 as opposed to erw saving .5 kilo per wishbone ( accounting for the fact roadcar has heavy transit drag links and maxi ball joints )
alloy uprights, callipers, drive hubs, drilled discs etc as opposed to sierra, got to be at least 3 kilos a side probably more !!!!drum brake rear end
converted to discs, difference between shafts is 2.5 kilos each , diff is 2 kilos lighter, diffrent bearing housings and drive flanges another 1 kilo
per side
lightweight bodywork, ( inc carbon fibre ) with return edges no alloy trims etc in cockpit area,
integral dash panel and engine sealing panel in scuttle, plus aeroscreen
alloy footwell panels as opposed to steel
alloy fuel and brake lines
single strand f1 spec wiring loom
just with what i know weigh less we have saved 53 kilos  ,
then add the bodywork diffrence etc and you can see where the saving comes from
[Edited on 19/9/05 by marc n]
And all that cost's approximately how much?  Which should reinforce everyone's point in the first place...
[Edited on 19-9-05 by Hellfire]
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marc n
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| posted on 19/9/05 at 05:51 PM |
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pont is many parts are not just a weight saving but also performance enhancing such as uprights ( proper front geometry i.e scrub radius castor etc )
and brakes beleive me when you can brake 8 metres later than a standard setup that is some performance advantage !!!!!
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marc n
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| posted on 19/9/05 at 05:53 PM |
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quote:
And all that cost's approximately how much? Which should reinforce everyone's point in the first place...
ahh but your point was our figures where incorrect,
just enlightening you as to how we achieved it, excluding my labour the cost to build retail £8000
[Edited on 19/9/05 by marc n]
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Mad Dave
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| posted on 19/9/05 at 07:13 PM |
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Congratulations if you managed it! What was the spec of your orange car at Brands?
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marc n
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| posted on 19/9/05 at 07:27 PM |
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orange car was a bit of a mix match to be honest we only built it in a few days,
rt chassis cds cage, big fuel tank etc and upgraded to inboard suspension with rt plus wishbones with no fuel came in at 440 kilos,
so decided i will use this next year as a class b car as its still light enough as i only weigh 63 kilos and i like the colour
[Edited on 19/9/05 by marc n]
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Mad Dave
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| posted on 19/9/05 at 07:33 PM |
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The colour is bloody nice!
Still, at 440kg its going go well round the track, out of interest what time did you lap Brands in
[Edited on 19/9/05 by Mad Dave]
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marc n
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| posted on 19/9/05 at 07:34 PM |
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quote:
what engine was in it?
a pinto?
it did have a quaiffe reverse too
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marc n
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| posted on 19/9/05 at 07:41 PM |
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quote:
Still, at 440kg its going go well round the track, out of interest what did you lap Brands in
dont know as i never configured the digi dash, was going to do it on the morning of the show but had a full fry up at the hotel instead
so had no speed, oil pressure rev counter no nothing
all i know is the hyabusa turbo dax rush took about 15 car lengths out on us down the straight despite the fact i overtook him round the outside at
clearways and was 2 car lengths ahead we caught him back up again by the time we reached clearways again then the same thing happened
cant wait till i finish my zx12 car as few more ponies over the r1 would be nice
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marc n
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| posted on 19/9/05 at 07:43 PM |
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incidently was running a 3.14 diff and only managed to grab 6th gear 20 metres before the braking point, think a 3.38 may have been better suited
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Mad Dave
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| posted on 19/9/05 at 07:43 PM |
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So pretty fast then. What is a decent lap of brands?
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marc n
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| posted on 19/9/05 at 07:57 PM |
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can only remember cliocup times 50.8 was pole for one of our drivers in 2003 i think ???
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Hellfire
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| posted on 19/9/05 at 08:10 PM |
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So did the VortX RT+ actually weigh in at 397kg with fluids? If so, I am well impressed.
Oh yeah, and Proven wrong. In which case - APOLOGIES
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marc n
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| posted on 19/9/05 at 08:12 PM |
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yep all fluids and 8 litres of fuel takes 14 to fill it as opposed to 28 for the roadcar
it is even lighter today though as the engines come out blew the gearbox at brands!!!, now all the internals are going in a new car for next year
so i will have a class a car b car and c car all at current spec suspension wise
[Edited on 19/9/05 by marc n]
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Winston Todge
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| posted on 25/9/05 at 04:05 PM |
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I'm not trying to kiss ass here but...
I think this thread just goes to show how much thought and experience Marc has put into his designs...
I did around 14 months of research into the 7 styled kitcar industry before putting down a deposit on a kit.
I met Marc and his Dad at Stoneleigh and then visited him the week after to hand over my money, I was that certain that his design was the best by
far...
Just go up and visit them and you'll see what I mean.
Chris.
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Hellfire
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| posted on 25/9/05 at 09:21 PM |
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I had the pleasure of meeting Marc last year - yes, very knowledgeable and experienced. Good set-up and obviously busy as a result of all the
development work and continual new products and design's.
It's always nice to be proved wrong IYSWIM - as respect is the result.
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