Rolls

possible the coolant got into the loom or ecu?

you can just use a VPN to buy US only games or games at US steam prices google for a guide, it is simple as and most games are quite a bit cheaper

Do this. /thread

when my shaft f**ked it self and the compressor starting just making love to the housing it sounded like an A10 fighter jet, ridiculously loud but it still boosted fine. The longer you leave it the worse it will get, if it is a stock turbo I wouldn't worry as you will probably just bin the whole thing, but if its an expensive after market or a high-flow the sooner you take it out the greater the chance it can be repaired without too many new parts. First confirm this is what is happening by taking the front side off the turbo and look for wear marks and shaft play, it could be as simple as a leaking exhaust gasket or something making it sound high pitched though I'd put my money on it being the turbo shitting itself. if you cant do it yourself take it to a turbo workshop and get them to diagnose it, find a quality place so they don't take you for a ride though.

Read the dyno thread, proof of lots of 250-300kw rb25s with all the details of how they got it you are using a laggy shit dinosaur turbo, you will never get good results, peak power sure but a crap powerband. Get a decent garret gt28 gt30 style turbo to match your power levels and you will get better results.

I know it does work but I am still not quite following, isn't the pressure always going to be higher on the engine side and the intake (vacuum) is always going to be the path of least resistance?

what stops the surge slots from recirculating at high revs and essentially wasting the compressors flow? I never understood this, I figured if they leaked at low revs to stop surge, why wouldn't they leak at high revs? I figured it would be easier to spit the air out the slots to a vacuum (the intake) than into the engine which is under pressure hence they would leak all the time. is it something to do with the higher the velocity of the compressor the harder it is for air to get out the holes?

it was plug and play, rob tuned it but I am in SA so I flew over to buy the car, I generally just wasn't happy with the feature set or performance of the ECU, poor idle, poor fuel economy even with a solid tune on it, there was many hours spent on the dyno with the previous owner. I went back to the rb20 ecu with a nistune and in just 3 hours had it beating the wolf in every department, with a road tune and a few more hours touch ups it is brilliant now, the wolf could never match its fuel economy, idle, or being able to handle air con on at the same time, even the AAC valve control was crap. not to mention instant defect if seen by a police man.

jesus that sounds awful to drive with that high spring rates!

smallest turbo possible for the power application = win

You have a built motor, it can take 20psi all day everyday without issue if it was built and tuned properly even a stock motor will hold together with 18psi with that turbo, was there another reason they said that? running it at 18-20psi will make a large difference to power.

He loves his wolfs, he couldn't understand why I wanted to get rid of mine and replace it with a stock ecu with a nistune. The fact it needed 1100rpm to hold idle, 19L/100km and it doesn't look stock were pretty good reasons to me.

they still lack most the hardware required to make it a decent ecu, eg only 4 injector drivers blah blah, I can see the reasoning as a business to not do it though, sales are what keep them alive so you need to constantly push the new hardware. certainly be worth it if you already had one though

how would you compare them to a the ultimate, a motec?

I've heard a lot of glowing reports from the vipec but it is hard to filter out real opinions with someone who has a fast car and just assumes it is good, if you had in the ~$2k mark for an ecu not including tune what would you go for STATUS?

Fair call, I had no idea you were running one, thought I heard motec but that must have been someone else. After seeing the motec software I think I've been spoilt, but you are right if it has the feature set and the tuner is familiar (and a good tuner obv) then you can get good results. Just in case anyone didn't get it the first 40 times I said it though, the V4 is crap, I feel kind of bad cause I sold mine to someone on these forums with a 25det

maybe I am still sour from the V400 as that was literally a downgrade and the software was terrible, I'm assuming there is newer software for the new models? You are right though if your tuner loves even the V400 you can still get a half decent tune, but it isn't money well spent in my opinion.

that thing looks like it weighs 700kg, should be absolutely spastic.

V400 I am talking about as that ist he one everyone buys as they go for $500 second hand, the newer one is almost $2k new. the newest V500 version has better features but the software is still average, for the $1500 it costs there are better ECUs out there. Works fine sure, but define 'fine'.

wolf 3d is a downgrade, no closed loop O2 feedback (bad fuel economy) and only batch mode injection (bad idle, bad fuel economy and hard to tune). get a PFC or nistune, cheap, easy to tune and good results, but ultimately make sure you find a tuner that tunes them, if theyve never used it before, there is a chance they will do a crap job.

I thought it was only the older models (of wolf and vipec) that only had 4 injector drivers, all new models run 6 or 8 injector and ignition drivers. The fuel wastage isn't that bad, but it all adds up, it also makes it harder to tune the car to idle smoothly. Lack of ignition drivers isn't really an issue, injector ones can be though. With 4 injector drivers you can run it in batch mode using only 2 of them, 2 driving 3 cylinders each, or 3 driving 2 cylinders each and set it up semi sequential.

Yeah, 4 injector drivers lol, means all 3 injectors are firing at once, lacks sequential injection like the stock ecu and any other decent ecu, no matter what you do, all things being equal you won't get as good fuel economy nor will it be as easy to tune. for the price and trouble of going to an aftermarket ecu, there are plenty of better ones.

rofl

lol because I didnt know what the vct on the cam gear looked like?

Interesting, there you go.