Jump to content
SAU Community

Recommended Posts

There isnt a whole lot of info on rb30dets in my desired relms of use. Most rb30dets area drag monsters...

Hmm suppose it's the difference between a punchy quicker less laggy spool or a wait for a bit and get the the the holly f##k on it scary spool. Response vs shear power balance. Loads of rb's you see with bigger turbo's tend not to be able to get off the line or blow up boxes half shafts and diffs. I'd say with the bigger turbo you would need a mental clutch and longer ratio to get the power happening or it would just snap stuff and light up the tyres permanently. Which is also fun:-)
6 minutes ago, TiTAN said:

 


High flows have been tried on an rb30 years ago. It was a cheap build basically stock Na bottom end with the 25 head and it came on like a light switch but come 5000 it hit a wall, by 5500 it had dropped about 100kw from memory.

 

This is no gd... mine will be a forged bottem end so looking to lean on it some ?


Hmm suppose it's the difference between a punchy quicker less laggy spool or a wait for a bit and get the the the holly f##k on it scary spool. Response vs shear power balance. Loads of rb's you see with bigger turbo's tend not to be able to get off the line or blow up boxes half shafts and diffs. I'd say with the bigger turbo you would need a mental clutch and longer ratio to get the power happening or it would just snap stuff and light up the tyres permanently. Which is also fun:-)

Being a 3ltr it will have more torque anyhow so perhaps response is the way to go? Don't forget I'm only a sheet metal worker who has never blown up a Cleavo Windsor c4 top loader or 9".[emoji4]
Gtx3582r with an 50mm external gate is what i was also thinking. Either way i think external gates gonna be better


I had a pre gtx series 35r with 0.82 rear. If you tweaked the waste gate setup you could have 20psi at 3500. Traction was non existent below 100km/h, for Street use it was too laggy to be quick and too fast to be usable without potential jail time. You would start seeing positive boost (a few psi) at 2500 with a bit of load.

Guilt-toy had a similar setup and should be documented fairly well on sau.

This is my dyno sheet, 26 psi and the dip at 145 was spark breaking down, done on a 33c day.

IMG_1502280990.305269.jpg
13 minutes ago, Beyond Blue R33 said:


Being a 3ltr it will have more torque anyhow so perhaps response is the way to go? Don't forget I'm only a sheet metal worker who has never blown up a Cleavo Windsor c4 top loader or 9".emoji4.png

I hear u can get cheap pipe? Gonna need some mikd steel and aluminium to make some pipe work. Proberly not till later in the year tho

  • Like 1
9 minutes ago, TiTAN said:

 


I had a pre gtx series 35r with 0.82 rear. If you tweaked the waste gate setup you could have 20psi at 3500. Traction was non existent below 100km/h, for Street use it was too laggy to be quick and too fast to be usable without potential jail time. You would start seeing positive boost (a few psi) at 2500 with a bit of load.

Guilt-toy had a similar setup and should be documented fairly well on sau.

This is my dyno sheet, 26 psi and the dip at 145 was spark breaking down, done on a 33c day.

IMG_1502280990.305269.jpg

 

Hell yeah, that looks right up my street. I wont be using it much on the street, mabe once a week at this stage. Il proberly get hooked at drive it all tje time lol

thats a run out at an airport, i am not even an amateur film maker obviously as its hard to even read any of the gauges. had spark breaking down at 160 then it clears up and keeps going, trapped at 242km/h at the 800m mark.

  • Like 1
6 minutes ago, TiTAN said:

thats a run out at an airport, i am not even an amateur film maker obviously as its hard to even read any of the gauges. had spark breaking down at 160 then it clears up and keeps going, trapped at 242km/h at the 800m mark.

Sounds gd ?

16 minutes ago, TiTAN said:

That's mainly to give you an idea just how quickly 400kw puts on speed.

If it's going to be a track toy, you are going to need some serious brakes to deal with stopping it. Upgraded pads and rotors won't cut it.

350 all round. Alpha omega brembo upgrade. Dba discs and bendix pabs. With all my cars its always been suspension, tyres, brakes then power.


Posted some pics of the boot fit out. What do you think of it?

Looks good mate, should sound good too.

A lot of bass is lost through the back seat of our skylines due to the steel plate etc but will still be plenty of punch no doubt.

Is it all hooked up and running now?
  • Like 1



  • 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...