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Author: Subject: Scootz's Trike Build... All Opinions Welcome
scootz

posted on 23/6/10 at 08:58 PM Reply With Quote
Scootz's Trike Build... All Opinions Welcome

... as you've probably guessed, I have fallen at the first hurdle and have adopted another project!

I stumbled across a brand-spanking new Formula Rolon single-seater chassis and body that had found its way into the country as part of an engineering study. The Engineering chap was finished with it, so I bought it for a very reasonable price.

It arrived last week and I've got to say I'm quite impressed by the build quality. I was worried that it might not be the best, but the chassis welding, bodywork and components seem every bit as good as some of the european Formula cars I've had.

It did not come with an engine or gearbox, and the rear lends itself well towards grafting the back-end of a bike onto it to create a reverse trike (and its easier to put through its test!).

It also has a big enough cockpit to take my lardy backside in relative comfort!

This is a pic of a built car...



This is (kind of) what I want to (try and) achieve...





[Edited on 18-7-10 by Fozzie]





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tegwin

posted on 23/6/10 at 09:00 PM Reply With Quote
oooh! interesting!!

I take it this will be road legal... look forwards to seeing lots of pics in the comming weeks!!!

[Edited on 23/6/10 by tegwin]





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scootz

posted on 23/6/10 at 09:08 PM Reply With Quote
Will take a bit of time as I have a fair bit of 'stuff' to sell (who me!?) so I can raise funds for the drivetrain.

Not decided what to go for yet... I had initially preferred the thought of a shaftie set-up, but I guess a chain-drive will keep costs more sensible and allow me more engine choice.

I'm concious of the 'wheel-lifting' issue with some trikes and will work out my COG accordingly, but could do with some advice about whether a low torque screamer would be safer, or should I go with my preferred option of a lower revving torquey engine?





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franky

posted on 23/6/10 at 09:15 PM Reply With Quote
ducati 1198 should do the trick
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clairetoo

posted on 23/6/10 at 09:16 PM Reply With Quote
That is gonna be awesome - I look forward to seeing the finished article





Its cuz I is blond , innit

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Will weld for food......

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welderman

posted on 23/6/10 at 09:17 PM Reply With Quote
nooooooooooooooooooooooooooo thats got me thinking now damn you

this was the stage im at as last week, now a wheel might stay off, that 3 wheeler looks awsome Rescued attachment swifty.jpg
Rescued attachment swifty.jpg






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scootz

posted on 23/6/10 at 09:18 PM Reply With Quote
Sorry...





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JoelP

posted on 23/6/10 at 09:19 PM Reply With Quote
it well needs a busa turbo in it.

You're worse than Donut, he cant stop selling projects and you cant stop buying them!





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zilspeed

posted on 23/6/10 at 09:21 PM Reply With Quote
Scott.

Please don't do it.

The car is meant to be just that.

A car.


With 4 wheels.

F O U R wheels.

Go and see Doug up at westgarage and he'll sort you out with a diff to get a bike engine in there, but don't, please don't, start a trike project.

As a road vehicle it'll be cack.

And I mean all of the above in the most positive way ever.

I just want you to succeed and end up with a great project.

Flak jacket now on

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Steve Hignett

posted on 23/6/10 at 09:25 PM Reply With Quote
AS ABOVE.....

PLEASE don't take a wheel off a vehicle that can go round corners at a pace that will make you smile.................................

I have nothing more to say, just please don't do it...






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scootz

posted on 23/6/10 at 09:28 PM Reply With Quote
Cheers Zil... I absolutely know where you're coming from.

I'm not going to kid myself that it will be anything other than an uncomfortable-handful to actually drive, but it's a relatively straightforward and cheap conversion, and should offer a real 'sense of occasion' when playing with.

Most of all though, I can't be bothered with all the palaver for a full IVA test.





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dlatch

posted on 23/6/10 at 09:30 PM Reply With Quote
without jumping on a bandwagon here i have to say i think the trike idea is not the way to go i personally hate them
but its your money

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scootz

posted on 23/6/10 at 09:34 PM Reply With Quote
I just fancy something really different and a bit wacky! Even if I kept it with 4 wheels (which will cost a LOT more to do), the on-road driving experience would still be a nightmare. Anyone who has driven a single-seater ex-Formula car will know where I'm coming from!

No other reason for it... it's just cool (in my bizarre little world!).





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scootz

posted on 23/6/10 at 09:36 PM Reply With Quote
See... that's cool!







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tegwin

posted on 23/6/10 at 09:45 PM Reply With Quote
quote:
Originally posted by scootz
See... that's cool!




Would be better if it were slightly longer.. it doesnt look in propotion,...





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smart51

posted on 23/6/10 at 09:45 PM Reply With Quote
That is quite cool, except perhaps the very thin roll over hoop.






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zilspeed

posted on 23/6/10 at 10:07 PM Reply With Quote
quote:
Originally posted by scootz
I just fancy something really different and a bit wacky! Even if I kept it with 4 wheels (which will cost a LOT more to do),


P I S H

In my world, things cost whatever you want them to cost.

There's no way you're going to convert that into a trike without hacking bits off. Once that's done it's ruined forever.
Single seaters have a period where their value drops, then they climb again.

If you leave it with four wheels, it can use bike power smpathetically and still be left relatively intact.

Regarding IVA, couldn't agree more. Neither could I be bothered with that. That's why it would become a track only car for me. Lots of venues to use it, great craic at them and all the support in the world.

Keep it as a a single seater.
Go on, go on, go on, go on, go on

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dhutch

posted on 23/6/10 at 10:33 PM Reply With Quote
quote:
Keep it as a a single seater.
Go on, go on, go on, go on, go on


THIS

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scootz

posted on 24/6/10 at 06:46 AM Reply With Quote
I can't hear Zil... LA LA LA LA LA LA LA LA!


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WanchaiWarrior

posted on 24/6/10 at 06:46 AM Reply With Quote
This one is quite cool as well:



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scootz

posted on 24/6/10 at 06:47 AM Reply With Quote
Indeed... needs some proper tyres though!





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3GEComponents

posted on 24/6/10 at 08:28 AM Reply With Quote
I've always liked this one....



http://sub3wheeler.com/






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scootz

posted on 24/6/10 at 09:03 AM Reply With Quote
And now I have the rear end...

Image deleted by owner

From a 2010 Suzuki B-King!





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scootz

posted on 24/6/10 at 12:53 PM Reply With Quote
Back to the technical points... front wheel lift when accelerating out of a tight corner. Does the way the engine puts it's power down affect this? Is a torquey low revving unit more likely to cause this effect than a high revving buzzsaw?





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smart51

posted on 24/6/10 at 01:22 PM Reply With Quote
Wheel lift is caused by acceleration force. Hang a plumb line from the centre of gravity point so that it points to a spot on the floor. If this spot moves outside the triangle that goes round the contact patches of the 3 tyres then you tip over. Cornering makes the plumb line swing to the side. Accelerating makes it move to the back where the triangle is narrower. If you are right on the edge in cornering then put your foot down, you cross over the line and your wheel lifts.

The trick is to have the C of G low and close to the front axle (no so close that you tip up under braking!) If your track is wide and wheel base long plus your CofG is low and forwards, then your trike can both accelerate and corner hard without lifting a wheel.

Cars with low 1st gears and lots of oomph will accelerate the hardest. Keep the long first gear of your donor bike rather than the short final drive of a BEC if you're unsure. Or do the maths.






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