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Old 02-04-2010, 08:32 PM   #1
Full-Race Geoff
Scooby Specialist
 
Member#: 133386
Join Date: Nov 2006
Chapter/Region: Tri-State
Location: AZ/NJ
Vehicle:
13 F150
ecoboost

Default Full-Race R14 at 2010 Modified Mag Tuner Shootout

Hello fellow motorsport fans, I have decided to turn my R14 (GTR-based S14) into a time-attack machine for the big race event coming up - modified magazine tuner shootout. it will go back to occasional street car duty afterwards (its too much fun not to drive on the street), but first and foremost I am working hard to make the car competitive for the event. We got 2nd place the last 2 years in heavily modified street subarus and we dont want to give that up. A street subaru wont get us 2nd this year - there will be a UMS's sickass evo 8, a dedicated track porsche 911 twin turbo awd as well as the sierra sierra cosworth evo and tarzan is driving crawford's STI so we have to be on top of our game to do well. We have 10 weeks before the event. The chassis and engine are VERY solid and have plenty of time on them with no problems. Our driver is Mike Speck - an ace behind the wheel and knows this track extraordinarily well. I am getting a set of motons, and they will be used only for the track with the aero package on the car (will switch out to my koni 28 series for the street).

Specs are:

Full-Race Twinscroll Turbo kit
RB26 stock bottom end but fully built head
Borg Warner Airwerks twinscroll S300SX 88-75 turbo, expecting 680-700hp on E85 (e85 helps response and spool), good oiling system and cooling is getting improved right now
full roll cage, proper bracing in the right spots
r34 gtr brembos front and rear, raybestos motorsport pads, brake ducting
R32GTR front suspension, caster changed to 7degrees through custom upper control arm mounts. Stock swaybar, Stock Upper Arms, Stock lower arms, Stock tierods, Quaife Front LSD, urethane swaybar bushings
R33GTR rear suspension, full adjustable links, R32GTR stock swaybar, nismo LSD
Tires are Hoosier A6 (Autocross compound for time attack) and BFG R1 (enduro + lapping) 275/35 on a 18x10.5
Torque Split is running fixed with 40-55-60psi in the transfer case (ATTESSA eliminated) depending on preference and tires/track condition


here are some pics of the engine setup while i was daily driving it (engine/turbo will remain unchanged) and the twinscroll borg warner S300SX 88-75 turbo, with 90 degree compressor housing.



-- pump gas dyno at 19psi. e85 tune will be at 30 psi and will generate much more area-under-the-curve

some pics of the changes were making now:


^^new vmount, optimized radiator airflow


^^modified R32 GTR spindles to accept the 1/2" heims on the motons AND dropped the toe link 30mm to adjust for bumpsteer. will finish machining this weekend


^^surge tank with dual 044s, to run 100psi base fuel pressure on E85

thanks for reading, ill try and update this again when were making progress
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Last edited by Full-Race Geoff; 02-04-2010 at 08:43 PM.
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