The day has come at last! - Project Spearmint @ Abbey M/S 05/08/2008

[Spearmint]

Well the day is nearly here for myself and Project Spearmint.

Way back on Thursday 19th July 2007 my last engine went pop due to running far too much power for the stock con rod bolts. So I went all out on the rebuild process with Andy W @ SP Auto's, addressing everything possible with a view to making the RB25 unit very robust and reliable.

The car is now run in and on the 5th August 2008 it is booked in with Abbey M/S to be set-up properly. Everything performance wise is listed below so how about we have a little game and have a guess with just how much Project Spearmint will have at the hubs in both torque and HP and also at what boost.

It will be mapped on 97RON fuel.










Turbocharger & Induction:

• Apexi Induction Kit,
  HKS Air Flow Adapter,
  Custom Stainless Steel Cold Air Feed Pipe,
  Custom Stainless Steel Turbo Intake Pipe,
  Custom Stainless Steel One Piece Turbo Outlet to FMIC Inlet Pipework,
  Custom Stainless Steel One Piece FMIC Outlet to Throttle Body Pipework,
  Billet Turbocharger 4030 (Incredible Spool),
  Hybrid GT Racing FMIC (780mm x 295mm x 78mm),
  HKS SSQV,
  RIPS Billet Aluminium 100mm Throttle Body,
  RIPS Inlet Manifold,
  6Boost Top Mount Turbo Manifold,
  44mm Tial External Wastegate (1 BAR Spring),
  Screamer Pipe,
  Custom Braided Oil/Water Turbo Hoses,
  Billet Turbocharger Blanket,
  Aeroquip Fittings.

Fuel & Tuning:

• Plateau Honed Bores,
  Fully Balanced Bottom End (With Clutch),
  86.5mm Wiseco Forged Pistons,
  Eagle ESP 'H' Rods,
  ACL Bearings,
  ARP Con Rod Bolts,
  ARP Head Studs,
  N1 Oil Pump,
  Abbey Motorsport Oil Pump Drive Collar,
  N1 Water Pump,
  RIPS Extended / Baffled Sump,
  Oil Catch Tank,
  ATI Damper Pulley (1000hp rated),
  NISMO 280LPH Fuel Pump,
  NISMO 740cc Injectors,
  NISMO Fuel Pressure Regulator,
  NISMO Thermostat,
  Aluminium Racing Radiator (30% extra Cooling),
  Splitfire Coilpacks,
  HKS 1.2mm Headgasket,
  Tomei Pon Cams (256 IN/EX, 8.5mm Lift),
  Tomei Adjustable Cam Pulley (Exhaust),
  Tomei Timing Belt,
  HKS F-Con V-Pro (Tuned by Abbey Motorsport),
  Greddy / Trust Profec Spec-B II (Max Boost ??BAR),
  Apexi Turbo Timer,
  Greddy 8's,
  Billion Coolant Hoses,
  Mocal 13 Row Oil Cooler,
  Mag Oil Filter,
  Only Ever Used 10W/50 Silkolene Pro Changed Every 4000 Miles.

Exhaust:

• Custom 3" V-Band Downpipe With A Flexi-Join,
  Custom Screamer Pipe,
  Custom De-cat,
  5Zigen Double Silencer Catback System,
  Entire Exhaust System Heat Wrapped.

Drivetrain:

• OS Giken Twin Plate Clutch,
  C's Short Shifter Kit,
  NISMO Strong Release Fork Pivot
  NISMO Stainless Braided Clutch Hose,
  NISMO Engine Mounts,
  NISMO Transmission Mounts,
  Silk Road Engine Torque Damper.

Suspension, Wheels & Tyres:

• 17" Rota D1 Alloys,
  Falken FK-452's All Round (245/40 Front - 255/40 Rear),
  DBA Grooved Discs Front / Rear,
  Yellow Stuff Pads Front / Rear,
  Braided Brake Lines Front / Rear,
  DOT 5.1 Brake Fluid,
  Cusco Brake Cylinder Stopper,
  HKS Kansai Front Strut Brace,
  R33 GTR Rear Strut Brace,
  TEIN Superstreet Suspension,
  TEIN EDFC.

[Moff]

Well done Richie..

521.23333 BHp

Moff

[spaxy]

best of luck mate,hope you get what you wanted.
510 b.h.p

[Floyd]

489 at the hubs

[Al_Star]

what was it before it went bang?? to give us an idea

[Kez]

541.5...............looks bloody awesome mate!!

[simon]

My spec is almost identicle to yours except I will be using a HKS 3037 turbo and running a Exedy Hyper single clutch and flywheel and 600cc injectors so I am very interested to see what yours makes.

I reckon low 500's.......

Simon

[Al_Star]

530 ish i reckon

[Spearmint]

Originally Posted by Al_Star

what was it before it went bang?? to give us an idea

[Bandit]

With that spec i would say about 545 FWPH


Edit, about 470 ATH

[KRISS]

480 atw

[Lamb Chops]

450ath

[ray cee]

510 ath..

[simon]

well?????

[Spearmint]

A slight hiccup with this one.

It pulled 510ath on the dyno yesterday but Det was heard so he backed off. On the next run it only pulled 460ath so it was investigation time.

Through the use of a boroscope, no evidence of Det was found in any of the 6 cylinders or on the face of the pistons, valves seated correctly, no catch tank full of oil or the dipstick getting blown out, plugs where ok as well.

A hot compression test revealed all cylinders bar #5 @ approx 125PSI whilst #5 sat at around 80PSI.

So the mapping was abandoned with the threat of the engine being stripped down for invest once it was back at Andy's.

It was a strange one as the compression check highlighted a snag yet no other symptoms where present, it idled just right with no hunting whatsoever and it drove back superb albeit for a half mapped car.

Andy has just come off the phone to me with some good news though as he has just done a cold dry compression check. #5 was sat @ 115PSI whilst the rest was sat at 120PSI (ish). A wet check revealed all the cylinders @ 125PSI.

It appears that it may have just been a ring stuck and the drive back plus a proper cool down must have 'pinged' it back out and seated it correctly. All engines on the dyno do afterall get one hell of a thrashing.

So fingers crossed, Abbey will accept it back and finish the map off. Maybe it will be ready for Rotorstock maybe not. So it's just a waiting game for me at the moment.

Rest assured, Andy and Abbey are on the case.