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Author: Subject: Trike Build Update... Again, All Thoughts Welcome.
MikeCapon

posted on 10/10/11 at 06:53 PM Reply With Quote
Well Scootz, the blunt end looks excellent.

What are your plans for the pointy end?

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scootz

posted on 10/10/11 at 07:28 PM Reply With Quote
I'm betwixt and between!

I've been wondering if it would be possible to make a front-subframe to attach to the face of the front bulkhead. Then use top rockers like the FVL type and have the dampers inboard...



The bottom would be a similar design to the top rocker, but cut at the red line...



I'm worried that I'd be putting too much stress through the rockers and the front-subframe though as I see that the FVL car uses a traditional wishbone on the bottom.



Mind you, that might just be because they didn't want to use another heavy arm on the bottom!!!??? As always... all thoughts welcome!

Also worth noting that the trike will weigh less than half of a FVL at 275-ish kg and wouldn't be subject to the same punishment.





It's Evolution Baby!

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clairetoo

posted on 10/10/11 at 07:42 PM Reply With Quote
Well , most of JP's cars (Fury , Striker etc) use a very similar top wishbone so I dont see a problem there - maybe a reversed Sylva-style lower `bone , and take the loads from in front of the axle line ?
If anyone can draw a Fury suspension setup with the lower `bones reversed this would make sense......?





Its cuz I is blond , innit

Claire xx

Will weld for food......

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scootz

posted on 10/10/11 at 07:45 PM Reply With Quote
Cheers Claire... I'm off to google some Sylvas!





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Proby

posted on 10/10/11 at 07:47 PM Reply With Quote
Scootz,

I've never been a fan of trikes, but this has got me interested. Looks a great project and can't wait to see it progressing further. Well done!

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scootz

posted on 10/10/11 at 07:48 PM Reply With Quote
Found a pic... makes perfect sense! Ta!





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Sam_68

posted on 11/10/11 at 05:41 AM Reply With Quote
quote:
Originally posted by scootzMind you, that might just be because they didn't want to use another heavy arm on the bottom!!!??? As always... all thoughts welcome!


Yep, the only reason FVL and other rocker-arm suspensions use a 'traditional' wishbone on the bottom is simply 'cos they don't need to take the big bending loads of the upper rocker (there's no spring resisting the movement of the bottom wishbone), so there's no point making it any heavier than it needs to be.

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scootz

posted on 11/10/11 at 05:45 PM Reply With Quote
Cheers!

Sounds like it might be a go-er then!

I get the chassis back up the road on Friday, so I can see what's possible with the space available.





It's Evolution Baby!

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Sam_68

posted on 11/10/11 at 06:27 PM Reply With Quote
One thing to watch if you're intending to use a bottom wishbone that resembles the top 'rocking' wishbone:

You'll notice that the conventional bottom wisbones on most rocker set-ups have a much wider 'base' (ie the distance between the fore and aft chassis pick-ups is much greater than the length of the rocker shaft on the top rocker wishbone). This is to make them stiff enough and stable enough to resist braking loads.

Rocker arm suspension designs that don't have adequate fore-aft stiffness can have problems with distortion under braking that causes judder and weaving and all sorts of nasty side-effects.

Admittedly, we're usually talking about slick-shod single-seat racing cars, but you might want to take care that the length of the rocker shaft is enough to impart plent of stiffness, just to be on the safe side.

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Triton

posted on 17/10/11 at 09:07 AM Reply With Quote
Hey Scootz any more pictures?





My Daughter has taken over production of the damn fine Triton race seats and her contact email is emmatrs@live.co.uk.

www.tritonraceseats.com

www.hairyhedgehog.com

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scootz

posted on 17/10/11 at 09:11 AM Reply With Quote
Nothing new to report just now Triton.

I'm just trying to get the back end finished completely before starting on the front.





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Triton

posted on 17/10/11 at 11:09 AM Reply With Quote
Okey doke I will keep coming back to look then.. It's got to be the best thing I have seen in ages





My Daughter has taken over production of the damn fine Triton race seats and her contact email is emmatrs@live.co.uk.

www.tritonraceseats.com

www.hairyhedgehog.com

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scootz

posted on 25/10/11 at 03:09 PM Reply With Quote
Back home... and gathering dust until the bank balance recovers!








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scootz

posted on 2/11/11 at 05:36 PM Reply With Quote
I'm not liking the K1200 wheel that you see in the pictures (it runs the wrong way), so am on the lookout for a new rear.

Whilst I would love to get an HP2 Sport forged rear, I just can't afford the £900 it will cost.

I've a feeling that shiny spoked wheels would be a nice contrast... what do we think?









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l0rd

posted on 2/11/11 at 06:16 PM Reply With Quote
Nope

I don't think it will look right

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scootz

posted on 2/11/11 at 06:16 PM Reply With Quote
So you're undecided then!?





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HowardB

posted on 2/11/11 at 06:29 PM Reply With Quote
in my humble opinion it needs a big flat topped car tyre on a matt black 3 spoke on the rear, hope that's not too specific for you.



can't wait to see it running!





Howard

Fisher Fury was 2000 Zetec - now a 1600 (it Lives again and goes zoom)

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franky

posted on 2/11/11 at 06:52 PM Reply With Quote
I agree, it looks aweful. it'll weight 10000000.5kg too.
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scootz

posted on 2/11/11 at 06:53 PM Reply With Quote
Let's can that idea then!!!!





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TheGiantTribble

posted on 2/11/11 at 10:45 PM Reply With Quote
Don't can it.
I like the shinny spiky wheel idea.
Kinda a olde meets new theme thingy going on

I'll shut up now :)

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kipper

posted on 3/11/11 at 08:00 AM Reply With Quote
wheel

Hi Scootz.
I think the spoked wheel would look wrong alongside the carbon tub, for my tuppence worth it needs a car type rim with a flat treaded tyre.
Denis.





Where did that go?
<<<<

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lewis

posted on 3/11/11 at 08:16 AM Reply With Quote
i quite like the wheel you have fitted,will look like a cutting wheel going round





I am a driving god!..........sort of

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scootz

posted on 3/11/11 at 08:44 AM Reply With Quote
Cheers guys... whatever wheel I go for will get a car tyre in the long term.

I'll use the bike tyre (it is pretty new) that came with that wheel for the MSVA and the odd few miles it takes for me to destroy it!





It's Evolution Baby!

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scootz

posted on 3/11/11 at 08:45 AM Reply With Quote
quote:
Originally posted by lewis
i quite like the wheel you have fitted,will look like a cutting wheel going round


I know what you mean, but I think it would look 'faster' if it was going the right way round





It's Evolution Baby!

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scootz

posted on 12/11/11 at 05:03 PM Reply With Quote
LOL... I've done a complete 360!!! I'm now liking the BMW wheel spinning the 'wrong' way! ... that's that sorted then!

I'm also getting quite fond of the black / yellow contrast as it stands just now! Think I may powder-coat the frame and 3 wheels to match the yellow nose-cone!







It's Evolution Baby!

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