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Lotus S1 Exige + Rotrex K20

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Sat Oct 15, 2016 8:13 am PostPost subject: Lotus S1 Exige + Rotrex K20
foz01
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I had reached a tipping point with the yellow Elise in terms of development, I always wanted the Motorsport Elise (Exige) body and wanted more power and a sequential gearbox, a sequantial wanted ad somehow has turned into selling the yellow elise and upgrading to the following, recently built from a bare chassis and has an amazing list of upgrades.


Initial plans are to get plenty seat time, then do SMRC/SLS in 2017, there's very little left to upgrade as such so I expect the thread to be around how we get on with the car rather than further development as such.

Full spec:

Engine:
Rebuilt 2.0l Honda K20
FN2 DBW Inlet Manifold
Carrillo Rods H Beam CARR 4247
JE Forged Pistons 309412
Supertech Valves, Springs, Guides,
ID 1000cc Injectors
CM Sump Baffle
Lightweight Flywheel
Setrab Engine Oil Cooler Hose & Fittings
Fully balanced
TTS Motorsport Engine Mount Kit
Tullet 321 stainless 3" over manifold high grade stainless fittings & additional packing
Bespoke airbox from the roof scoop.

Cooling:
Proalloy Triple Pass radiator
Fan top fitting
Silicone Hose Set

Charger:
Rotrex Supercharger Kit elise C38-81, inc Supercharger, Chargecooler, Pre-Rad, Reservoir, Hoses, Pump, Belts
Tial Blow Off Valve Q50

Gearbox:
Quaife 5sp Sequential Box with Shifter Cables, Load Cell & Gear Pot with autoblip and flat shift
Gearbox Oil Cooler, Pump & fittings
APC Clutch
Motorsport Driveshaft Set

Fueling:
Fuel-Lab Fuel Pressure Regulator
Pro-Alloy 60l Fuel Tank
Uprated in tank Fuel Pump
Bosch 0580254044 Fuel Pp
Braided hose
Upgraded Fuel Rail

Electrical:
Custom Motorsport Wiring Loom
Dash 2 pro dash configurable with gear position, alarms etc
Transponder
Pectel SQ6 Engine management currently with 4 switchable map files.
FN2 DBW Throttle Body( allows Throttle blipping)
Potentiometer for Throttle
FN2 Engine Harness

Suspension:
Eliseparts Race GT Uprights, T45 Wishbones, spherical Bearings, anti bumpsteer kit, toe links etc 4x100 hubs completely rose jointed, no bushes at all.
Quantum 2-way dampers 750R 650F springs

Wheels & tyres
16" & 17" Wheels Used Set TD
16" & 17" Wheels New Set 1 ROTA
16" & 17" Wheels New Set 2 ROTA
16" & 17" Wheels New Set 3 ROTA
Tyres Set 1 Slicks (New) 205/580R16 AVON A745 230/620R17 AVON A708
Tyres Set 2 Slicks (Little Used) 205/580R16 AVON A745 230/620R17 AVON A708
Tyres Set 3 Intermediates 200/610R16 Hankook Z209 T7 210/650R17 Hankook Z209 T7
Tyres Set 4 Full Wets 200/605R16 AVON W532 14976WGT 210/635R17 AVON W532 13820WGT

Bodywork
Motorsport Elise, 2 part rear clam, Motorsport carbon fibre Rear Wing & Alloy wing Pylons mounted to chassis.
Splitter/ Motorsport Diffuser inc spares & template

Chassis
Custom cages T45 FIA/MSA Cage inc door bars
Armtech Isolator
Plumbed in Fire Ex System Complete with roof & external buttons for Armtech & Lifeline
Carbon dash with gauges
Lexan Enduro anti-mist Screen
Polycarbonate Side Windows (inc Slide)
1" EP Anti Roll bar
Lightened Doors
Lotus approved Harness Mount Points
Schroth 6-Point Harness (HANS)
Tillett B6F FIA Carbon composite seat

Brakes:
Pedal Box Conversion with AP Master Cylinders & Brake Bias adjuster
AP Elise 2-Pot Calipers on rear (Elise Front)
AP 5000+ 4 Pot Calipers
AP Racing 304mm Brake Discs & Bells
AP Racing 295mm Brake Discs & Bells
Adjustable bias valve & line lock.

Steering:
EP Quick Rack
Momo Steering Wheel with QR Boss
Rose jointed arms

765kgs with all fluids and 1/2 tank fuel.

Mapped at tractive solutions where it made the following numbers, don't know anything about said dyno however based in the spec there's no reason to think it's unrealistic, will get it all checked out locally anyway.


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Sat Oct 15, 2016 8:55 am PostPost subject:
AMD
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Shocked
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Sat Oct 15, 2016 9:27 am PostPost subject:
James B
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Bet that's sluggish.....



Good work Lowell! Looks immense. Love that colour too. All the best with it. See you at KH!
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Sat Oct 15, 2016 9:30 am PostPost subject:
James B
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I see it has a Tillet B6F. If possible I would love a chance to test fit myself in that sometime. I'm looking at one for the Alfa but it's a fair investment without getting to try first and the nearest place to try is a decent flight away.
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Sat Oct 15, 2016 9:59 am PostPost subject:
foz01
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No problem James, I had one in my previous Elise and it looks fairly uncomfortable but once in it's fine.

Snug though, sizes are here: https://www.tillett.co.uk/shop/documents/downloads/B6-F-Dimensions-17052012.pdf
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Sat Oct 15, 2016 11:32 am PostPost subject:
Daveb
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Will it be out in November? Very Happy
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Sat Oct 15, 2016 1:00 pm PostPost subject:
James B
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foz01 wrote:
No problem James, I had one in my previous Elise and it looks fairly uncomfortable but once in it's fine.

Snug though, sizes are here: https://www.tillett.co.uk/shop/documents/downloads/B6-F-Dimensions-17052012.pdf


Thanks. I just want to see how far off the narrower one is and if I can get away with it. If not then it's the wideboy for me!
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Sat Oct 15, 2016 2:36 pm PostPost subject:
AK
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I was pleasantly surprised with the seat and space/leg room. The owner was prob just under 6ft so will be a perfect fit for you Smile

Wee things I think that could be improved Very Happy You havent even seen it yet Laughing

Gear Indicator - The dash system has it but its quite small and you need to look for it rather than having it just 'there' in front of you.

1, 2, 3, 4, 5
- for N
REVERSE for reverse

but they are quite small. I think a standard big red indicator may be worthwhile. See how you get on though.

Door cards - wee carbon panels bonded in with nice pulls and handles Very Happy

Demister - The chap mentioned anti-mist screen... but it got pretty damn fogged up getting it off the trailer and into barn. I was wet, and the car was not moving through air so if it does have vents to screen than wouldnt have been doing anything.

Wiring is impressive, cold start is awesome.... gearbox is sweet Very Happy

COugh..... if you want it tested I'll easy take it down tomorrow rather than mine.
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Sat Oct 15, 2016 4:36 pm PostPost subject:
foz01
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AK wrote:
I was pleasantly surprised with the seat and space/leg room. The owner was prob just under 6ft so will be a perfect fit for you Smile

Wee things I think that could be improved Very Happy You havent even seen it yet Laughing

Gear Indicator - The dash system has it but its quite small and you need to look for it rather than having it just 'there' in front of you.

1, 2, 3, 4, 5
- for N
REVERSE for reverse

but they are quite small. I think a standard big red indicator may be worthwhile. See how you get on though.

Door cards - wee carbon panels bonded in with nice pulls and handles Very Happy

Demister - The chap mentioned anti-mist screen... but it got pretty damn fogged up getting it off the trailer and into barn. I was wet, and the car was not moving through air so if it does have vents to screen than wouldnt have been doing anything.

Wiring is impressive, cold start is awesome.... gearbox is sweet Very Happy

COugh..... if you want it tested I'll easy take it down tomorrow rather than mine.


Laughing

I think the fans have been removed, will investigate, also the doorcards, tbh the standard lotus ones are good, tidy it up and incorporate pulls, will probably just fit them and a grommet for the winder hole..

Ref the gear indicator my recollection with a sequential when out on track with on it it was fine, only became an issue if you were trying to find neutral, reverse etc, will see.. you intuitively "know" the gears in an H pattern, and the big red indicators are an eyesore :p

300 laps be fine to bed everything in Twisted Evil Laughing

Dave,I have a wedding the night of the next TS day so won't make it sadly.
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Tue Oct 18, 2016 10:50 am PostPost subject:
HummuH
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Very nice Lowell, always fancied an Exige. Look forward to seeing it out, just don't paint it "unlucky" yellow Very Happy
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Mon Oct 24, 2016 9:09 am PostPost subject:
Merlin
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Amazing!! I am very jealous.
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Mon Oct 24, 2016 10:18 am PostPost subject:
scottish scrutineer
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Are you intending to do both LS and SMRC Lowell?

Looking forward to seeing you out with the Exige
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Sun Oct 30, 2016 8:24 am PostPost subject:
foz01
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Assuming the work situation is ok then yes smrc with Sls on the side.

Knockhill for the first test yesterday was a wasted day due to fog:



Here's a photo of the business end of the car, access is nice and easy due to the quick release rear section of clam. Still being a lotus space is still tight in there!
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Sun Oct 30, 2016 5:56 pm PostPost subject:
cherry
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Did yous leave due to the fog I take it? It eventually cleared up and also dried up. Ended up being a good day, but am sure you dont want to hear that! Was hoping to see this going round aswell.
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Sun Oct 30, 2016 6:29 pm PostPost subject:
foz01
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Yeah, we didn't actually have a place booked so had hoped someone would drop out early, the track opening so late then accidents & the fog rolling back in after lunch we decided to leave and get back up the road as had stuff on in the evening.
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