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    The Rorty R11 Stiletto single-seater buggy
    #1
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    Finally! Well, here it is, the new [url=http://www.rorty-design.com/content/R11_Stiletto_manual.htm:3ni384xs]R11 Stiletto[/url:3ni384xs] single-seater, short course style buggy. Although the R11 Stiletto shares some of the R16's parts, the chassis is unique, with the exception of the front bumper!*It was just too difficult to redesign the front bumper.

    The R11 specifications and dimensions are as follows:

    Brakes – Front – Wilwood BDS callipers with 254mm [10"] diameter discs.
    Rear – CNC twin piston calliper with 203.2mm [8"] diameter disc.

    Chassis – Spaceframe constructed from 1.5" OD DOM steel tube.

    Engine – Any 2, 3 or 4 cylinder, chain-drive, motorbike or snowmobile engine.

    Steering – Aftermarket rack and pinion with 1.3 turns lock to lock.

    Suspension – Front: Double, unequal length, tubular A-arms, with Fox shocks. Travel; 533mm [21"].
    Rear: Double, unequal length, tubular A-arms, with Fox shocks. Travel; up to 508mm [20"].

    Tyres – Front: BF Goodrich 30X9.50R15C All Terrain.
    Rear: Goodyear Wrangler MT/R 31X10.50R15LT.

    Wheels – Front: 15" x 7.5", .190" aluminium.
    Rear: 15" x 8.5", .190" aluminium.

    Ground clearance – 339mm [13.3"].

    Overall height – 1628mm [64"].

    Overall length – 3577mm [141"].

    Overall width – 1981mm [78"].

    Track – Nominal 1733mm [68"].

    Weight – 465 kg [1025 lbs] (depending on engine size, wheels etc.).

    Wheelbase – 2438mm [96"].

    The R11 PDF Stiletto manual contains:

    • 171 pages of clear instructions and supporting images.
    • Fasteners list.
    • Materials list.
    • Parts list.
    • Suppliers list.
    • 109 CAD drawings.


    For a short while I will be offering the usual AU$20 discount to existing customers, with a AU$25 discount for new customers purchasing both the R11 Stiletto and R16 Shotgun manuals.
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    Re: The Rorty R11 Stiletto single-seater buggy
    #2
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    Rorty another top design.
    Quick question you've got a R6 *R11 *R82S *and the R16 what happened to the R7 R8 and all the other inbetween numbers??
    Brett
    They say that if you play a Microsoft CD backwards, it plays Satanic music. That’s nothing. If you play it forward it installs Vista!
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    Re: The Rorty R11 Stiletto single-seater buggy
    #3
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    Thanks for the kind words!

    I've actually got from 1-19 (not counting commissions). Some are ancient, some are only 3D models, some are complete and ready to publish and some probably won't see daylight for a while.

    One is actually a Class 1 desert car that was a project I was working on for a guy in the US, but he changed his mind and decided to race some sort of boat instead. He paid me, so I'm not in any rush to do anything with it.
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    Re: The Rorty R11 Stiletto single-seater buggy
    #4
    Senior Member Kludge's Avatar
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    Jan 2006
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    West of Portland, Oregon
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    Hi Rorty

    Congrats on the newest edition - Cool Stuff.

    Is the weight of R11 1025 lbs [depending...] based on some assumed engine, tire, etc weights?

    The R11 and R16 specifications indicate a weight difference of 55 lbs, did you use the same assumptions on both buggies for the engine, tire, etc weights?

    I'm interested in the estimated weight of the R11 frame with suspension, steering, RPM box and drive axles. (no engine, seats, tires wheels).

    And while your pencil is sharp and your calculator is warmed up…
    What is the weight difference of the R11 and R16 in the condition listed above (if not 55 lbs)

    Thanks for all the hard work.

    */Frank
    Kludge is pronounced clue-j (with a short J as in Just)
    You know you are blessed when your wife loves you, she understands your need for a shop with good tools
    and she wants you to build her a Minibuggy too!
    Yes, someday I'll get my website up www.minibuggysupply.com (Anybody know a good Web site designer/graphic artist?)
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    Re: The Rorty R11 Stiletto single-seater buggy
    #5
    Admin Gene's Avatar
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    Nice work Rorty!

    Very racy and I'm betting it will be a killer on and off the track.
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    Re: The Rorty R11 Stiletto single-seater buggy
    #6
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    Thanks all for the kind words.

    Frank, yes, the weights of both cars are based on an average 1000cc engine weight of 145.5 lbs (Fireblade 143 lbs, GSXR 1000 145.5 lbs, ZX10 148 lbs and R1 148 lbs). The Busa engine weighs just over 180 lbs.

    As for the rest, I'll have to get back to you because all the other info is on my workstation. It's Saturday morning here and I haven't fired it up yet! Feel free to remind me if I forget.
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    Re: The Rorty R11 Stiletto single-seater buggy
    #7
    Senior Member
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    she is about 20" to long for stadium racing, 120 is the so called rule there...
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    Re: The Rorty R11 Stiletto single-seater buggy
    #8
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    hi rorty,the stiletto looks great.i have a aprilia rsvr 1000 v twin engine ,was wondering what ratio fnr box would you use and what kind of performance to expect.giving the size and weight of the buggy
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    Re: The Rorty R11 Stiletto single-seater buggy
    #9
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    blokhead, thanks for the kind words. You'd probably want an overall ratio of between 6:1 and 6.5:1, but the best bet would be to talk ratios with Dan when you're buying the FNR.

    With an RSVR 1000, the performance would be mental!
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    Re: The Rorty R11 Stiletto single-seater buggy
    #10
    Keeper of the Asylum K-fab's Avatar
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    Scottsdale, AZ. 10.9 miles from the trailheads
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    I'd say you can get away with the 4.6:1 setup with that engine. *The torque it produces should be insane. *If you run a taller tire - say closer to 31 or 33, you might think about a slightly higher ratio like the 6:1

    With a shorter tire - say 26" tall, the 6:1 would make the thing extremely quick, but top end will probably be limited to about 110 - then again, if you've ever been in one of these smaller cars at 100, you'll realize that anything above about 85 starts getting pretty sketchy and above 95 - 100 is scary. *Cool, but scary!

    Go with the 6:1 and smoke everybody off the line.
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