Author Topic: Freddy\'s Border Racing Twin Single Turbo RX-7  (Read 2967 times)

Offline Freddy

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Freddy\'s Border Racing Twin Single Turbo RX-7
« on: August 10, 2010, 03:37:52 PM »
Good afternoon people!

Long over due post. Put this thread on FDUK but to share with those on here.

It\'s well beyond the time of year where we all bring our fd’s out of hibernation. For me, I’m intending on spending at least some part of this summer in the Border Racing twin single turbo’ed FD whilst still trying to decide whether or not actually sell the beast after over five years of ownership.

Car was MOT’d recently through the courtesy of Thames Valley MOT and looking back at past MOT’s. I’ve driven the car a mere 2600 kms over the past five years! :eek:

Engine was recently built and ported some seven months ago by Oldone Racing and nicely put together and painted by Super 7 auto\'s! Last dyno session in 2007 the car made circa 505 BHP flywheel. With the engine ported for further flow, here’s hoping once I eventually run in the car - Era can meet me at Reworx to see just what exactly Max or Geoff can churn out of the latest set up.

Below is a brief spec, along with some pictures I took – albeit the car had not been washed for two weeks as seen by the muck on the wheels and windows! All comments are welcome. A brief history of the car, it was owned and built previously by a Border Racing Japan engine tuner. The turbo kit was specially commissioned to Apexera by Border Racing and I believe a total of twenty units were only ever manufactured solely for Border Racing so the set up is utmost unique to say the least. Exterior has been purposefully left modest with the Border vented bonnet and Regamaster’s giving a little hint of this sleeper’s nature with most emphasis on driveability, handling and power.

Having driven highly modified FD’s, the set up below really does place the car’s responsiveness in the realms of that of stock twin turbo cars, minimal lag but(!) the power just keeps coming and coming. :D

Thanks for reading and look forward to any comments, criticisms.  :)

Spec;

Mazda RX-7 (FD3S KAI)
L Reg Type R2
55000km
One Owner Car in Japan.

Exterior:

Paint – Racing Red
Front Bumper – Mazda OEM
Rear Wing – Mazda OEM
Bonnet – Border Racing Vented
Mirrors – Mazda OEM
Lights – Border Racing Vented Light Cover
Wheels – Regamaster – Border Racing Offset
Lug Nuts – Enkei

Interior:
 
Momo Commando Steering Wheel
Trust /Greddy Shift Knob
Recaro SP-G Bucket Seat
Sabelt Bucket Seat Harness
RZ Passenger Footplate
Border Racing Dash Shroud
HKS gauges - Water Temp, Oil Temp, Oil Pressure (All neatly mounted)
HKS gauges – Boost, EGT X 2.
Greddy – Profec B Spec 2 Boost Controller
Border Racing Tripple Gauge Pod
Apexi Power FC Commander
R Magic Power FC Commander Holder
Mazda Late Spec Stereo
CD Changer
Battery Located in Boot
Battery Assistance Mechanism in Boot
Water Injection Tank in Boot
Step Up Boost Controller
 
Drive Line and Handling:
 
OS Giken Racing Clutch
OS Spec Flywheel
Border / OS Giken Differential (LSD)
HKS Coilovers Adjustable Suspension (Custom Spec –Hybrid Hypermax / Drag - R)
Gearbox Bracing
Diff Bracing
Uprated Discs & Pads All Around
Adjustable Rear Tension Rods
Uprated Brake Flexi Lines
Yokohama Advan Neo Va 255’s tyres (Semi Sticky.)

Engine:

Border Racing Spec 13B REW further ported and built by Oldone
Border Racing Twin Turbo Kit – Custom made by Apexera
Border Racing Cold Air Feed
Border Racing Lightweight Pulley Kit
Border Racing Intercooler Piping
Border Racing Lagged Downpipes
Border Racing Extended Large Front Mount Intercooler
Border Racing Mesh Gauze Intake
Border Racing Cooling Panel Cowl
Border Racing Oil Catch Tank
Border Racing Engine Torque Damper
Border Racing “Burn Out” Complete Exhaust System
Trust / Greddy Throttle Body Elbow
Trust / Greddy Oil Filter Block
Trust / Greddy Blow off Valve
Re Amemiya Tripple Row Radiator
Water Injection with Large Jet
Silicone Water Hose
Silicone Vacuum Lines
NGK Racing 10.5 Spark plugs
610cc Primary Injectors
1600cc Secondary Injectors
KG Parts Fuel Rail Kit
Uprated Fuel Pump
Nismo Fuel Pressure Regulator
Stainless Steel Fuel Lines
B&M Bolt Ignition Amplifier

All managed by; Apexi Power FC Engine Management System  























Thanks for looking. :D

Offline Speedline Imports

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Freddy\'s Border Racing Twin Single Turbo RX-7
« Reply #1 on: August 10, 2010, 04:27:42 PM »
Great spec car Freddy, how do the twins feel to drive?
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Offline Freddy

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Freddy\'s Border Racing Twin Single Turbo RX-7
« Reply #2 on: September 02, 2010, 08:28:03 AM »
Never saw the reply to this thread!

The behaviour of the twins is very refined, in the low revs you can happily drive without being thrown back and forth as is such the case with large single turbo fd\'s. The spool time of the turbine is very minimal and makes it\'s hugely responsive. Yet throughout the rev range,the power delivery is so linear yet brutal. It really does achieve what Apexera set out to do; large single turbo power with the useability to that of a twin turbo RX-7. :)

Offline L18M

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Freddy\'s Border Racing Twin Single Turbo RX-7
« Reply #3 on: September 02, 2010, 10:22:25 AM »
where on earth (well, japan) do you find all these nice fd\'s?

they wont appear in auctions not online auction sites.
2 doritos on a stick woohoo :rollin

Offline Speedworks

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Freddy\'s Border Racing Twin Single Turbo RX-7
« Reply #4 on: September 02, 2010, 10:24:20 AM »
Great car and engine... Could you provide the specs of the turbos please?

Offline neil_jdmr

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Freddy\'s Border Racing Twin Single Turbo RX-7
« Reply #5 on: September 02, 2010, 02:37:38 PM »
Do they run in non-sequential form then Freddy ???
 
Awesome car and unless your in need of the funds i dont know how you can even think of selling such a unique fd.
 
Love it!!
Standard sequential, standard engine, Oem body, 1.2bar, WI

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Offline rx7boy

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Freddy\'s Border Racing Twin Single Turbo RX-7
« Reply #6 on: September 02, 2010, 03:44:18 PM »
Quote from: neil_jdmr;714467
Do they run in non-sequential form then Freddy ???
 
Awesome car and unless your in need of the funds i dont know how you can even think of selling such a unique fd.
 
Love it!!


I think I remember him saying that they run sequential, but the transition from one to both is not noticeable, could be remembering wrong tho
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Offline Speedworks

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Freddy\'s Border Racing Twin Single Turbo RX-7
« Reply #7 on: September 02, 2010, 03:53:01 PM »
can\'t believe they run seq. it would be a far to complicated manifold to build without casting in such a tight area.

Offline rx7boy

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Freddy\'s Border Racing Twin Single Turbo RX-7
« Reply #8 on: September 02, 2010, 03:59:32 PM »
Quote from: Speedworks;714484
can\'t believe they run seq. it would be a far to complicated manifold to build without casting in such a tight area.


Yep, I was wrong, just spoken to him, they run non-seq, however due to the original porting by border racing and then the additional by Era, the turbos spool nice and low!!
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Billet Pulleys, Wheel Spacers, Engine Mounts, Engine Braces, Sump Braces, Filler Caps, Coil relocation Custom CNC available.
Dealers for : Injector Dynamics, Thermal Velocity Heat Protection, Xcessive Engineering, Turbosmart.

Offline Freddy

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Freddy\'s Border Racing Twin Single Turbo RX-7
« Reply #9 on: September 03, 2010, 07:59:11 AM »
Quote from: L18M;714415
where on earth (well, japan) do you find all these nice fd\'s?

they wont appear in auctions not online auction sites.

I think it\'s down to over thirteen years of enthusiastically searching the right places, this was from Border Racing directly. Auctions are the last resort place to achieve a sale - hence why most cars are often not up to standard. I had also purchased the black Border Racing Time Attack car:

http://www.mazdarotaryclub.com/forums/showthread.php?t=22356

As Dale mentioned, they do indeed run non sequentially. There really is minimal lag, the turbo spools up unbelievably quickly and it really does accelerate well - much faster on acceleration compared to a TD06, T51R single turbine RX-7.

I am inclined to selling it only because of work commitment, this year alone it has had close to £6500 spent on it. :driving

Speedwork, each turbine is rated at 380 ps and are ball bearing. If you want fuller spec on comp / turbine wheel etc then just drop me a mail; freddy__k@hotmail.com

 :)