paulr33

the holes on the comp cover are a workaround for compressor surging it allows air to enter onto the compressor wheel on the outer edge to balance out the some of intake sucking, which is commonly associated with surging. think of it as an anti surging device. the bulk of the air enters the snout, thanks to the vacuum effect of the compressor wheel sucking in air, but a very small amount enters through the holes also to side step around surge

I service mine every 10,000. Car is on 150,000 and no obvious problems

I am unsure how the 12v feed will affect the PFC, other than "it doesnt work", I know the hand controller runs of a 5v feed. Try this. FC in and hand controller in turn to ACC check out SENSOR SW CHECK under ETC post up what sensors are in black (backlight) highlited

correct, a good tune will likely get rid of any bad fuel ecomony. adding a larger housing is not the correct way to get some good economy. boost doesnt give you bad fuel economy. state of tune + driver habits + 02 sensor = fuel economy so make sure you have a good working 02 sensor. make sure you have a suitable tune, including cruise and low load. if you floor it, its going to come on load and take in lots more air, which means more fuel. if you drive in peak hour traffic its going to be less efficient

change the ecu to a stand alone ecu, or at the very least a piggyback. you will gain quiet a good gain in average power everywhere and the car should feel like a brand new car once tuned. airflow makes more power so to make power, youll need more airflow, which means a larger turbo. with a larger turbo the likely suspects follow; injectors airflow meter clutch tyres suspension work turbo itself fuel pump cold air intake boost means nothing and is irrelvant. if you run 300psi or 3psi it means nothing, the airflow in turn makes power. pressure rating on a given compressor will ultimately decide how much airflow you dial in, and how much power. the rb25 turbo upgrade thread covers most of the common turbocharger ugprades. the guide munna has written covers most the common questions and combinations again. all the information is there and has been covered, you just aren't looking for it

its not guess work or hearsay. all you have done is your changed your ecu and used the hit and hope method. you hope'd it was going to be ok and now the result is (if you have infact moved to a powerfc or other ecu) that you feel its the same and therefore it must be ok. there is proven evidence that it cannot physcially be possible for it to be the same. the gear shift logic is in the stock ecu. is it not in the powerfc and many other ecu's. this is how i suspect it works (my theory) stock ecu - right before gearchange auto box notifies ECU its about to change gear - stock ecu goes sure and makes ignition timing changes and possibly other fuel related changes - autobox performs phyiscal gear change - autobox notifies ecu gear change complete - stock ecu goes back to normal settings powerfc (and others) - right before gearchange auto box notifies ECU is about to change gear - powerfc (or other ecu) ignore communication - runs as normal - autobox performs phyiscal gear change - autobox notifies ecu gear change complete - powerfc runs as normal so, there will be no changes during gearchange. this will put extra stress on the autobox. other likely side affects are jerky changes, holding onto gears during changes and other nasties or side affects associated with braindead ecu's, well ecu's designed for manual gearboxes only

oh and whilst we are on a the topic of stock ecu vs others and so on, as i feel this is relevant. a different ecu type doesnt instantly mean you are going to make more power. many people (including myself a few years ago) believed that certain ecu types made more power, or give you access to more power. ie: moving to a powerfc is likely to yeild at least 20rwkw. moving to a greddy piggyback should give you 15rwkw. a lot of people have these expectations based on assumptions and what they feel is right. it has nothing to do with the ecu type or format of it, brand, model etc. its all the state of the tune and how well it has been tuned accordingly. its certainly possible for a stock ecu to make more than a stock tuned powerfc. its certainly possible for a stock ecu to make more than a stock tuned motec, and so on. the state of the tune makes the power, not the ecu itself. so saying i make $xyz rwkw with a stock ecu is pointless and means nothing. what it does mean is that you are making a given power level and AFR is coming out, but you have little or no control over it. you can piggyback away and influcence its descision but you simply can't set IGN timing for a particular spot at X and Y on the load map. you can dial in XYZ AFR at 4500rpm on medium load. you can only influence other factors to get these results, which is a comprimise. so in summary, there is no special bonus for keeping the stock ecu. you don't get super cool status if you make 274rkw on the stock ecu. what you do get is a comprimised, or best case scenario piggyback style tune. the same car with the same mods and a stand alone (or even fully remapped stock ecu) is going to preform better, be more fun to drive, repsond better and overall be a much better car to drive

you asked the same questions back in december 2005 and got the same answers with many reasons to show why. if you still don't aceept that, then perhaps you should read over it again http://www.skylinesaustralia.com/forums/in...98962&st=20 by all means, go ahead, by a powerfc its a fantastic ecu, or any other ecu you please but its not technically possible for the gearbox shift logic to be the same. this is assuming you are using the stock skyline auto box. if you are using a non electronic auto box then none of this is relevant. using a vlturbo auto box is a suitable replacement box to work around this problem. you too know this fact, as its in the thread you posted up in dec 2005. so if you have a jatco auto box, carry on and worry not. if you have the stock box then proceed, but you have been given caution (by lots of poeple, not just me)

i do not care. it has been coevered many many many many many times over and over and over and over. it is simply not possible for it to be the same, there is no technical way it is possible for it to be identical. something must be different. the auto box logic is in the stock ecu. the powerfc (like many ecu's) has no auto box logic so it just does what it feels is right and lets the driver and manual clutch engage/disengage.

series 1 and 2 ecu's have different mappings but the rest is the same. the 4wd drive system isnt controlled by the ecu so it works fine. we've seen normal powerfcs work on a GTS4 with no problems or wire changes. if the stock ecu is working with a different crank angle sensor then the powerfc will be the same and have no problems

2nd hand ceramic exhaust wheel on the stock turbo's sounds like a ticking time bomb to me. you really should change them to steel wheel's. one member has seen this failure destory an rb25dett before

this information is wrong, please ignore it. the stock protection is not a fuel cut. it is not boost cut. it has nothing to do with boost. it is based on air volume and volume alone. once the protection is activated the ecu retards the timing and richens itself up to protect the engine as it believes too much air is coming into the system for the factory components. you are likely to hit the excess airflow protection when you change the turbo as it will have a larger compressor wheel and housing, which will in turn flow more air. its also likely to have a different actuator, which determines the minimum about of pressure before the internal gate opens, again dialing in more air is going to make you reach the excess airflow protection. as you have an auto the only comprimise you have is apexi safc + apexi sitc and just tune it the best you can.

what number thing was in the test ?

am keen to pilot autosalon and then head up on the tuesday assuming others from the club also want to help out with autosalon

moved by paulr33 from tutorial, please bounce back to tutorial once you have all the info/part no's etc.

There were 4,695 collisions on the Monash Freeway between October 2000 and August 2005. Of those, 82% of collisions involved cars, 12% involved heavy vehicles and motor cycles and other vehicles accounted for the remaining 6%. What about the collisions police don't get involved with? Who counts those?

Police blitz Monash Freeway Mon 10 July 2006 Operation Linker main image Police are giving motorists one days warning about a 24-hour traffic operation along the Monash Freeway that will run for the next month. Operation Linker involves traffic police from Regions 1, 4 and 5 and will target speed, mobile phone use and vehicles that are following too closely. Assistant Commissioner (Region 4) Bob Hastings said Operation Linker was the first of its kind along the Monash Freeway. “Operation Linker is a unique operation designed to address the specific problems police see along the Monash Freeway,” Assistant Commissioner Hastings said. “Police will be targeting the 51-kilometre stretch of road from Melbourne through to Beaconsfield. “The Monash Freeway is utilised by thousands of Victorians every day. Through sustained enforcement efforts combining traffic resources from three Regions, this operation is designed to decrease side-swipe and rear-end collisions commonly caused by speed, mobile phone use and following too closely. “Operation Linker aims to make the Monash safer for all motorists.” The operation will begin Tuesday 11 July and conclude on Monday 7 August. Seven people have died on the Monash Freeway since 1 January 2000. There were 4,695 collisions on the Monash Freeway between October 2000 and August 2005. Of those, 82% of collisions involved cars, 12% involved heavy vehicles and motor cycles and other vehicles accounted for the remaining 6%. Pictured: Sergeant Bruce Watt and Senior Constable Andrew Shenton. Michelle Alexander Media Officer http://www.police.vic.gov.au/content.asp?Document_ID=7320

a touch under 400 ks to a full tank. tuned r33 with the usual mods, fmic, exhaust, 12psi, fuel pump and so on. 02 feedback is turned off on the powerfc. on highway i can get just near 600k's

you need the powerfc boost kit loom, which can be brought seperately from nengun.com. The boost kit is unable to use the factory map sensor, so you need the one from the boost kit. It's actually a denso map sensor.

this makes no sense at all either the guage is wrong or the controller is 0.80 bar is somewhere near 11psi and 15psi is no where near 11psi

you need to lower the injector latency for cranking under SETTING

hks evc old school style cheap, accurate and works well $200 mark is reasonable

yep its a bout right. half a day or a full day. because its an import it has to goto one of their workshops. normal cars checks can be done onsite for normal aus delivered cars.

annual leave is in

Im in for car convoy road trip. Im booking in my annual leave today for that week off