Underground Motorsports: Project 800hp Rb26dett 1998 Silvia

[underground]

Hey Guys,

I am (with the help of several sponsors) aggressively working to finish our car in time for the USA NOPI 2007 Tour.

As it has been since 2004, the car will once again be featured in the BF Goodrich Tires Booth at select locations nationwide.

I'm going to make this the official thread, and will be updating the thread over the next 6-8 weeks while we finish up the car.

Here is the current mod list, and the latest pictures/videos will be posted soon.

1998 RB26DETT 240SX

Weight: 2950 lb. (w/o driver)

Redline: 9000 RPM

Motor: R33 RB26DETT w/ Ford C4 Tranny w/ Transbrake and GearVendors OverDrive Setup

Cams: Tomei Poncams 260/260 Duration 9.15 Lift w/ Adjustable Cam Gears, Ferrea Springs, Retainers, Locks, and Locators

Pistons: JE 86.5 w/ Hi Performance Upgraded Rings, coated by Calico Coatings

Turbo Setup: Garrett GT4088R (.95 A/R) with Greddy T4 Divided Manifold

Wastegate: Tial 60mm

Intake: Custom

LSD: Cusco RS 1.5 way LSD

Rods: Eagle Rods w/ ARP Rod Bolts

Injectors: Precision 1000cc x6, Greddy 11.0 mm fuel rail

Oil Pump: Tomei

Water Pump: Nismo

Timing Belt: Greddy

Headgasket: Tomei 1.2mm

Headstuds: ARP

Main Studs: ARP

Bearings: Calico

Damper: ATI Super Damper (600-1000 HP Model)

Downpipe: Custom

Mount Kit: McKinney Motor and Transmission Mounts, Custom Driveshaft

Strut Bar: Cusco 40D 40mm Aluminum Strut Bar

Gauges: Autometer Cobalt Series (Boost, Water Temp, Oil Pressure, EGT, Trans Temp, Air/Fuel, 5" Tachometer)

Exhaust: Apexi Ex Mag 3.75" Exhaust

Cooling fans: Permacool (2) 12" High Perf. Electric Pull Fans, 3000 CFM

Intercooler: XS Engineering 24x12x3 core with 3†piping

Blow off Valve: Apexi Racing Max Power

Fuel system: Aeromotive FPR, Walbro 255/lph Intank Fuel Pumps x2, -8 feed line, -6 return line

Engine Management: AEM with 3.5 Bar Map Sensor and AEM Wideband Sensor

Boost Control: Apexi AVC-R

Suspension: Apexi N1 V-Spec Drag Coilovers, Battle Version Rear Upper Control Arms, Rear Toe Links, Rear Traction Links, Front Tension Rods

Axles: Mazworx Drag Axles

Brakes: Underground 300ZX Calipers/ Supra TT Rotors Brake Upgrade (Front)

Stillen Supra TT Rotors (Front), Stillen 300ZX TT Rotors (Rear)

Stillen 300ZX Racing Brake Pads (Front and Rear)

PDM Racing Conversion Brake Lines (Front and Rear)

Wheels: Motegi Prototypes 18x9 (3" lip) , 18x10 (3.5"lip) Gunmetal w/polished lip

Tires: BF Goodrich (Front) 225-40-18 KD, (Rear) 285-30-18 KD

Paint: House of Kolor PBC-36 TruBlue Pearl

Aero Kit: Cwings Carbon Fiber Body, OEM S15 Headlights/ Inner Cirlce S15 Front End Conversion

(Stock Turbos at 1.1 bar)

These Photos were taken 2/2007, this is part of the Stage 2 buildup.

Edited May 2, 2007 by underground

[STATUS]

sweet my missus has a rb26 powered silvia....

http://www.skylinesaustralia.com/forums/in...155506&st=0

[underground]

I wanted to post some pics of the build on my car to show it's progress level.

I had to order custom motor mounts for the car, and they should be here sometime later this week.

Right now, it appears like the car is 2-3 weeks from being completed.

It would be much sooner, but I am still waiting on parts to arrive from Japan.

[underground]

And the most recent....

[blk180]

Looking good. what block are you using?

Edit all good i see the 05U now.

[Modena]

Thats tops! Awesome mate...

[Rezz]

Beautiful engine... the carbon fenders and things are sweet too although never been a fan of unpainted carbon panels.

[underground]

Yesterday, Andy at Southern Imports in Murfreesboro, TN (Mechanic on Project 240SX) installed the Mazworx Axles w/Hubs (http://www.mazworx.com) and SPL Pro Aluminum Subframe Fushings. (www.splparts.com)

A little brake cleaner and some black spray paint really improved the look of the spindles.

As you probably notice, the threads on the hubs are extended for use with aftermarket drag wheels.

[Silvia GTR]

Awesome just Awesome

[underground]

Just uploaded, photos of today's progress:

Desynz Motorsports Oil Return Head Mod Kit:

Polished Balance Tube:

ATI Race Engine Damper:

[underground]

Getting Closer:

[Rezz]

Seriously impressive Attention to detail, parts used... everything. Well done. Just paint that carbon!

[spikeman900]

this looks great! Ive seen a bit of FULLRACE's RB26 powered S14 Series 1. This sounds like a bit of a contender.

[underground]

this looks great! Ive seen a bit of FULLRACE's RB26 powered S14 Series 1. This sounds like a bit of a contender.

We are both now using the GT4088R, so it would be an interesting matchup.

[underground]

Speed by Design (Setrab Model #925) Oil Cooler Kit for the 240SX

[underground]

Yesterday, Andy (Southern Imports in Murfreesboro, TN) began finishing out the fuel system, which should be done today.

Up Next was the Exedy Triple Disc Clutch, special thanks to the team at Exedy for their support over the years.

Ran the -10 AN Lines from Desynz Motorsports Oil Return Mod from the back of the head to the oilpan, as seen in the following two photos.

Finished the lines to the cooler, so that mission is completed.

[underground]

A shot of the finished oil cooler assembly:

McKinney Motorsports Race Motor Mount Kit, Tranny Mount, and Driveshaft

Everything on the bottom fitted up nice and snug:

Step-by-step Photo Guide:

Greddy RB26DETT manifold, adapted to run twin-scroll and the Tial Sport 60mm wastegate.

The wastegate had to be moved to fit into the 240SX engine bay.

[underground]

Monday Night, Andy and I worked til 2 a.m. @ Southern Imports to get the motor running.

When we attached the AEM EMS ECU, it started first crank with the AEM supplied base map.

I was very impressed with how simple the box is to use, and I want to thank Sean Morris for taking my phone call late at night to confirm we had the configurations setup accurately.

We still have lots of work left to be done, and these are, by no means, final images.

As you can see, there are aftermarket gauge sensors that need to be hooked up. The boost controller is not installed, the intake for the turbo still needs to be ordered, downpipe has not been fabricated, and the upper intercooler piping has not been polished.

But the motor runs, and that's a success in itself.

Yesterday, I transported the car to Texas, and will be finishing up the car here.

Once again, thanks to Andy Vaughn @ Southern Imports in Murfreesboro, TN. He, by himself, built 95% of the car that you are fixing to see. He is a amazing fabricator, engine builder, and friend. Thanks again Andy!

Here are the images and the start-up video:

[Rezz]

The car just looks incredible. Thanks for posting up progress shots... full respect Are you guys anywhere near Austin? I might be heading over there later this year.

[underground]

Yes, I'm about 3 hours from Austin.

I'd love to meet you.