Kink

SOLD. It's a sad and happy day.

Sorry papak, I don't remember off hand. I think it was this one. https://www.aerodynamix.co.uk/shop/exterior/high-level-aero-screen-luego-viento-carbon/ I took measurements and I found something that was close enough and it worked out very well.

It's with a heavy heart I put the Birkin up for sale. If I had a bigger garage I would not be making this post but it's time for the next phase of my car addiction. I'm asking $45,000. 2015 Birkin XS (current generation Wide Body), build completed in Spring 2016. Current mileage on the car is 5,154 (as of 8/9/19) Used on the street, autocross, and on the track. Never wrecked or contact with anything. Engine Highlights: Ford Duratec 2.0L - Estimated 200hp All Engine Work was done by Gerlach Performance and Machine in Colorado Donor Engine was from a 2006 Ford Focus with less than 500 miles (engine was out of a car that was damaged in transport, hail damage and other body damage on a new car) Supertech 11.3:1 CR Forged Pistons Crower Stage 2 Intake and Exhaust Cams (pt# 62552-2) Jenvey Individual Throttle Bodies New Valve springs and retainers Crankshaft is OEM Raceline Wetsump Coil on Plug Ignition Return Type Fuel rail with adjustable fuel pressure regulator Walbro gsl394bx external fuel pump Holley Hydramat in the fuel tank to prevent fuel starve at low fuel levels Specialized Components Typhoon ECU (fully unlocked for tuning) Mocal 13 Row, 325 Matrix Oil Cooler with AN fittings Gearbox/Diff: Ford T9 5 speed Gearbox from a Ford Sierra (UK) Custom ratios with the typical long first gear (1st - 2.482 2nd - 1.61, 3rd - 1.225, 4th - 1.1, 5th - 0.87) Short throw gear selector Rear Differential is a R180 from a Subaru STI - 3.90 with a clutch type LSD Brakes: Wilwood Narrow dynalite 4 piston calipers in front 98 VW Rabbit / 03 Audi TT rear calipers Misc: Weighs 1,300lbs with full cage, and 1,240lbs with just the roll bar Carbon Fiber Tillet B6 seats with custom pads (fits me comfortably and I'm 6'2" and 185lbs with a 32-33" pants waist), Larger than me can fit as well with how the seat is designed. Custom Full Cage built by Hank Moore at Advanced Auto Fabrication in Spokane, WA. The TIG welds are beautiful. Hank is very well know in the BMW world for creating competitive race cars. Painted Lotus Graphite Gray with Lotus British racing Green Stripe Setup for 6 point harnesses but 4 point will be included with the car Carbon Fiber Aeroscreen, and Windshield with defrost heat elements in the glass (interchangeable pretty quickly after you've done it a couple times, even with the cage) Carbon Fiber/Fiberglass dash Tall roll bar Short roll bar Custom Tonneau Cover Birkini top (covers the cockpit if using the windshield and roll bar, does not work with the cage) Custom Speed Hut Gauges - Speedo is GPS (so wheel size changes do not impact it) (Speedo, Tach, Oil Pres, Oil Temp, Water Temp, Fuel) Momo steering wheel with quick release hub I'm sure I'm missing a lot but this is the good stuff. Let me know if you or anyone is interested. It's a hell of a fun car and I am wishing I had room to keep it. The photos are of the various trims the car could be in. If you'd like anything specific, let me know. Brad NW MT http://www.usa7s.net/vb/attachment.php?attachmentid=14436&stc=1http://www.usa7s.net/vb/attachment.php?attachmentid=14434&stc=1http://www.usa7s.net/vb/attachment.php?attachmentid=14435&stc=1http://www.usa7s.net/vb/attachment.php?attachmentid=14438&stc=1

http://www.usa7s.net/vb/attachment.php?attachmentid=12243&stc=1 It raises the cycle fender just enough. I'm not sure if the Caterham wing stays are similar to the Birkin and if this photo helps you visualize anything. It's an old photo before I installed them.

Thanks Tom, I appreciate your feedback. I have some adapters for the cycle wings that allow wider tires to clear so I'm good there. Why the switch to the Michelin Radials if the Hoosiers are so missed? Wear and budget? I know nothing of the Michelin Radials, should I consider them on my 13" wheels? Sounds like I should stick with my 13x10 wheels and sacrifice autocross gearing, which I'm 100% ok with.

Hello All, Yes, another, what tire should I use. However, I'm not 100% clueless, I just need some opinions to help make my decision. I currently have a lightweight set of three piece 13x10 wheels front and rear that I have 20x9 Hoosier 25b compounds mounted for autocross use. I also have a 15x7/15x8 setup with 195/225 R1Rs used mainly for street but did track days with them as well. All of this is on a 2016 Birkin XS build with a built Duratec 2.0. I'm moving more toward track work with the Birkin and plan on at least 5 multiple day NASA track weekends this summer. I'm competitive with everything I do and would prefer if I buy another set of wheels that it be a set that can progress with me into Time Trial and maybe SCCA wheel to wheel. Now to the question. I'm wondering if I should run smaller width Hoosiers on my 13x10s all summer(will they hold up?), say maybe 22x9 and 22.5x9 25b (Those of you who know the Bias Plys know that the 20x9 I'm currently running is really 10" wide, and the diameter is too small for track work). Or, buy a set of 15x8 wheels and run R888 225/45s. I'm leaning toward the R888s but I hate buying another set of wheels (Had 3 sets of wheels for my S2000). It all comes down to preference and budget but for you track guys who have tested more than I have, what say you. Thanks all, Brad

That photo is before I even did any manipulation. I took a picture of all of the gaps I wanted to adjust with painters tape applied as reference, pulled the bonnet off, and gently (I mean gently) manipulated the curves while referencing the photos.

Thanks Bill. The mirrors are Spa F1. I have 2 convex lens and no rear view. Takes getting used to but the coverage is good.

Thank you. It was a fun and sometimes painful process. http://www.spatechnique.com/store/itemDetail.cfm?prodID=559&catID=7 I got 2 convex mirrors and I'm not using a rear view. Takes a bit of getting used to but the coverage is good.

Thanks Richard. Tom has been great to work with for sure. Wealth of knowledge and acceptable to all my ridiculous questions. Paint codes are: Lotus Elise B108 and B86

Hello All, I've been lurking for the last 7 months or so as I was building my Birkin XS. It is now complete (needs some fine tuning) and I thought I'd share a few photos. I'd also like to know if anyone has dimensions of the Caterham sill protectors. I'm not a fan of my side panels already and am looking for alternatives. The passeneger side doesn't fit all that well and has developed a small crack, that is bound to get larger. Thanks for looking Gents. Brad

I'm interested in this info as well. Also, if you know the ratios. 2.69,2.01,1.59,1.32,1.13,1?