Jump to content
SAU Community

Recommended Posts

Ok everyone has be telling me for ages that my turbo can't be stock for the power it makes.

I just recently heard some strange noises from the turbo area and decided to pull it off. The rear housing is standard as is the turbine(48mm ceramic). The compressor is 49.5mm top and 64mm lower. I compared it to a VG30bb and the trim on the blades is also different. The compressor cover is also a 45V2 VG30bb unit with slight machining.

Can anyone tell me if the 45V4 rb25 compressor is the same dimentions as the Vg30 or More like mine???? meggala???

Would be good to work out if it has been modified, seems to work very well. If it does turn out to be non standard, I would think a VG30 comp cover and high flow wheel with the same trim would be a very cheap upgrade.

full boost by 2500 to 3000

218rwkw @1bar

225rwkw @1.1bar

I am having it rebuild with a larger VG30 exhaust housing. I will post the result next week after it's finished and dyno'd.

the car came over with a chipped computer and massive fuel filter-go figure. maybe it had a package deal done, I have seen the advertised by tuning shops in japan.

Link to comment
https://www.sau.com.au/forums/topic/19304-12sec-stock-turbo-secret-revealed/
Share on other sites

Boosted,

What other mods have you done my goal is around 230Kw at the wheels dont wanna go too far past this as i still want a daily driver and something reliable...

Just wanna know what i need to get it to that kinda power.. slowlu buiding up.. i'll prolly get there in about 10 years though.

paydro,

the kit cost me $400 out of the local trading post. Normally around $1400.

The car will run a high 12 without the Nitrous. Tyres permitting a low 12 with the switch flicked. after I set it up on 50hp a 100hp jet goes in and 11's are on.

sounds very cool to me.

im in the process of upgrading my standard r33 for 12 sec passes but i dont want to use nos yet i want to keep the internals stock as well but planning on using a apexi power fc and avcr boost controller with an obvious turbo upgrade or larger internals.

theres a few other things ive got inmind but ill se how this goes first.

but nos definatley sounds like fun.

p.s. good pick up on the nos

bump

drivebai, performance wise the car has a zaust, filter, cat in pipe, HKS EVC, Power FC, Cold air intake, Greddy front mount intercooler, oil/air seperator, octane booster for 12sec run and a HKS solid centre twin plate clutch. Also running 255 17" on the back.

bump

drivebai, performance wise the car has a zaust, filter, cat in pipe, HKS EVC, Power FC, Cold air intake, Greddy front mount intercooler, oil/air seperator, octane booster for 12sec run and a HKS solid centre twin plate clutch. Also running 255 17" on the back.

Boostd thanks man.. i have all those mods except for about 90% of them hehehe so it looks like i will need Power FC, front mount oil/air separator, and hi flow turbo.. basically i need all the expensive stuff... yeah i got 255 17" on the back as well man... I wish you were in Sydney dude.. cos you are pretty much where i am aiming for round 230rwkw... would have been good if you could have taken me for a spin in your car.. so i can see what 230rwkw feels like and compare the differences between my fairly stock crappy car!!!. then i would have more incentive to save.. hehehe.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • So, I started this repair and got as far as "fixing" the holes with some fibreglass. God all those years working on boats came back quickly. I decided I'd reach out to some rust guys just to see what they would say about it. I came across a guy about 40 mins away and went to see him. He said the windscreen needs to come out, that there might be some more bits around the windscreen and he'd quote them at the time. But his quote was $300 to remove and replace windscreen and $3k for the damage he can see. He said he could respray the roof for $1200 and the bonnet for another $800 (somebody has previously rattle canned it, its horrendous). This is $5300 + any small additional bits. It's a lot, I get that and the name of one of my fave youtube channels 'Not Economically Viable' comes to mind.  I'm not being financially rational, but I've taken him up on the quote. He's opening a new shop in November with more room, so we're waiting for that. I'll leave the currently missing headliner out until then. I'm looking forward to it being fixed and having the paint looking nice again (lots of clear coat issues on the roof too). / flame suit on.
    • Oh and some up-and-comings; New rear drivers wheel bearing. I'll do that this weekend while the diff is out. The car is already up and the d/c axles and missing exhaust will help with space. This is the last bearing for me to do and I've been dragging my feet on it. I also have some new EBC blue stuff pads for the car and some new brake fluid. I haven't ever flushed the fluid in this car and looking forward to it. I have 600 degree fluid to put in. Not exactly "race fluid" but better than the typical stuff I have been using.
    • A proper clutch/plate type mechanical diff with quite a lot of pre-load and high locking % is better for drifting. Much more consistent in its behaviour. A helical can be annoyingly vague and inconsistent in how it responds under the sorts of abuse found in drifting.
    • Some updates here. I pulled the entire interior out, minus some trim to respray the seats with Colourlock dye. It turned out really nice though I accidentally let the dog in the car after and she scratched up the front seat.  This is what it looked like before, the colour was just washing out everywhere but thankfully the leather was in good nic. Then after the respray   And after the bloody dog jumped in The headliner is out waiting to be retrimmed, but it will stay out now until Nov - see why below. I replaced the stereo/headunit with a period-styled Android headunit. I have no after pics, but I'll get some. This is because of the missing pixels. I tried to fix this twice with replacement ribbon cables but couldn't. Also the bluetooth interface I'd bought for this was crap. Then there's the rusty roof. Pics and info in this other thread. I have decided to get this repaired professionally, but I'll update that thread. This is why the headliner will stay out for now. I'll be getting the roof and bonnet resprayed at the same time the rust is fixed. I also had an interesting issue with my drivers door lock.  For a small period I was having issues getting any 12v power to the car - I mean *any*. It would have no dash lights, nothing. It happened while I was at the shops and I couldn't get in the car. So, we had 2 problems. The most pressing here is that I was locked out. I have only a single physical key hole on the car, the drivers door and no amount of turning would unlock the car. Surely it doesn't need power for this? The second issue is why am I losing all power periodically, The battery isn't dead, its almost like the battery isn't even there. Two issues that were surprisingly easy to fix. You fellow BMW over-engineering lovers will appreciate this. The lock in the door has 5 states; mechanical lock, electric lock, neutral, electric unlock, mechanical unlock achieved at -90 degrees, -45 degrees, 0 degrees, 45 degrees and 90 degrees. Although, the unlock is towards the front of the car, so opposite for LHD countries. Sticking the key in and turning 45 left or right is what is used 99% of the time. It activates the central locking etc. 90 degrees is for dead battery access and, obvs, only un/locks the one door. But because the mechanical lock is never used and is 27 years old, it seizes up. I was totally unable to turn the key far enough to get to the mechanical unlock (At the time of locking myself out, I didn't even know this was a thing). I eventually did it with some vicegrips and teflon spray.  I made a quick vid for other E39 peeps.   The battery issue is totally new to me also - It wasn't making sufficient contact between the post and the terminal. The terminal was bolted on tight, but the car wouldn't have power. After checking the battery with my multimeter I accidentally contacted the terminal and the battery post and the car got power. The battery was only a few years old and in good condition. I cleaned the post and the terminal with a wire brush, bolted it back on tight and never had the issue again. I'm still surprised that despite having solid contact it didn't work. Also, the car was getting Warragamba sized pools of water in the back when it rained. My initial concern was another rust problem. But when I went out on Weds while it was raining and while I had no headliner in I could see a steady stream of water coming through the roof mounted aerial. As this aerial is for the (now removed) car phone I pulled it out and whacked a blanking grommet in the hole. It seems fine now. I'm thinking I might get the hole permanently filled when the rust is fixed. Moving forward and things in progress; The tailgate needs some attention. I have taken all the trim off to clean it all and address some small rust spots. I have partially done all of this but I'll finish it up hopefully this weekend. As all the trim are now entirely devoid of trim clips I have bought a heap of strong velcro and I'm hoping it does a good enough job as any of this trim in good condition is super expensive and usually in Europe as we dont have many of the wagons here. Suspension and brakes!!! This is exciting. In the front; New control arms New sway bar links New lower Eibach springs (the only modification I'm planning on this car) M Sport shocks (these came with the car and will replace the longer shocks in the car) New top mounts Used 540i calipers (stock brakes suck!) New 540i disks and pads (22x296 mm for 528 and 30x334 mm for 540i) New front wheel bearings (thank all that is holy for bolt on bearings!) Annnnd in the back; New control arms New sway bar links Adjustable air suspension arms (fool the car into what the current height is so the self levelling suspension can match the new front ride height) New ball joints I'll also be doing a brake fluid flush while I'm in there. I'm planning on switching the car over to the 16's that came with it so I can clean up and respray the M Sport 17's. They've lost a lot of colour over the years and have some gutter rash. None of this will start until the E90 is back.
    • You mean you will regret it for drifting duties? I don't quite follow.
×
×
  • Create New...