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The more research i do on this problem the clearer it looks. These engines have a real tendency to flood the top end with oil with any sort of high revs and need mucho oil return paths and probably a bigger capacity sump for motorsport applications. I can't believe that the major oil return path from the head to the sump on your car has been BLOCKED OFF!! Ahhhh. If you are in my boat and using a S1 vl block (1 oil drain available) you will have to tee it into the turbo oil return line or run a special drain into the sump, or if you have a S2 vl block (2 oil drains available) you should be able to run it into a spare oil return at the bottom of the block. Which ever way you solve it, do it soon. Hot engine bays and excess oil spraying arounbd equals fire.

Options are....Looks like I might have to put another oil return directly into the sump to stop starvation. Might as well put in a bigger baffled sump while I'm at it. Mmmmmm, does the engine have to come out for sump change?

hEY mICK, BLOWBY ON A NEW ENGINE...GEE i HOPE NOT! NO CATCH CAN AT PRESENT,RUNNING MIN BOOST (14PSI DUE TO EXT WASTEGATE) BREATHER PIPE VENTS DIRECTLY INTO THE INLET PIPING IN FRONT OF TURBO, IT IS DRY AS A BONE! hAVE NOT CHECKED COMP SINCE JUST BEFORE FIRST STARTING THE NEW ENGINE, ITS NOW 1500KLM'S OLD AND RUNNING ON ITS 2ND CHANGE OF OIL (MINERAL FOR RUN IN)........

Conversion complete, run in complete and all is well ....... except - On SUSTAINED high rpm runs, when you backoff its sucking oil into the intake and smoking BADLY!. Everyday driving with a bit of right foot action is fine. Even 2 dyno sessions(inc initial run in) did not show issue -Background, the rb30 block I used only has one oil return so both my head and turbo oil drain pipes are tee'ed together and use this. I have a used a high volume N1 oil pump during the build up. NO oil is coming through the breather from the rocker cover but oil is in the inlet side so I can only assume its coming from the turbo(which is a brand new garret gt35). I have two theories, 1 Its not breathing enough, thus ressurising the the sump, the head and turbo cany drain properly and the vacuum on throttle closure is sucking oil through the seal on the turbo. 2 Not enough oil is being drained away via just the one oil return in the block, the head and turbo can't drain properly and on throttle closure its sucking oil through the seal on the turbo. Does anyone else have any idea's? I am but a poorly IT guy and this sort of stuff is not my specialty....Cheers Lads!

Hi Shaun, Is it the Exhaust A/R or the Inlet A/R that dictates HP rating? I'm very interested but not sure if it will do the job on my new rb30det. I am aiming for a little over 300rwkw. Is this turbo big enough for this target? cheers Steve

Hi Mate Do these fit on a rb25det head? I have a rb30det that needs seems to be a breathless up top and have heard that this may help it. cheers

Looking for $499 firm...amp specs... KENWOOD KAC-859 Multi 4 Channel Power Amplifier - 240W x 1-120W x 2 RMS Power Car Amplifier Features : Power Ratings : Bridged Power Output at 14.4V(1kHz,0.8% THD):120 Watts x 2 Maximum Output Power(Bridged):240 Watts x 2 + 240 Watts x 1 Power Output at 2 Ohms,at 14.4V(1kHz,0.8% THD):60 Watts x 4 + 150 Watts x 1 (at 100Hz) Power Output at 4 Ohms, at 14.4V (20Hz-20kHz, 0.08% THD): 40 Watts x 4 + 120 Watts x 1 (20Hz - 200Hz) Power Supply Features : 2-Ohm Stable Black Anodized Top Cover: with Aluminum Heat Sink Plate Dual Power Supply Large Toroidal Noise Suppression Filter Power Indicator Power Input Terminals: Gold-Plated, Large Screw-Type Power MOSFET Switching Power Supply Audio Features : Ground Isolation Circuit Input Selector: A/AB/A/Sub-AB/Sub, with Independent Gain Adjustment Quiet Turn-On RCA Audio Inputs: A/B Channels, Gold-Plated Selectable High-Pass Electronic Crossover Speaker Connectors: Gold-Plated, Screw-Type Speaker Level Input Terminals: Screw-Type Speaker Relay Protection Variable Low-Pass Electronic Crossover: 50Hz - 200Hz, 12dB per Octave, Subwoofer Channel

VERY INTERESTED! Are you open to offers? Can you post another pic of the writing on the inlet housing (sorry but there is a heap of ebay/chinese copies going around). Thanks. Q

To suit street use, rock hard race items not needed. Already have some fronts though if you have a full set cheap enough I will buy the lot. Can get a set of new items for just over 1k so please no offers of s/h items at around that price. QUICK CASH SALE! cheers Q