Jump to content
SAU Community

Recommended Posts

  • Replies 333
  • Created
  • Last Reply

Top Posters In This Topic

I'm really curious as to why these horsepowerinabox/gcg style gt30's don't run the 6blade gt30 core with the .6 comp cover.

I'm thinking possibly GCG ran in to surge issues with the higher flowing 6blade gt30 comp?!?

I'm remembering back to GCG's 500hp bolt ons and the surge issues they had?!?

Edited by Cubes

this isn't a horsepowerinaboxturbo.

I got the VG30 ex housing second hand, and the Garret GT30 compressor and core from a local shop here.

FInally got the idle sorted out..

Stupidest mistake - We didn't firmly press on the plug that runs the little stepper motor on the plenum that adjusts the idle. Once in, still very rough idle so I gave her a heap more fuel on that load point, and now its idling nicely.

Anything above 4500rpm is death on this current tune, and it knocks its ass off.

so, I've set the rev limiter, and are waiting for my injectors to arrive so I can get them installed and get the car tuned to a safe level. Its drivable though, but only slow.

And even at 7psi, it hits pretty hard when it comes on.

I'll have to run in this turbo though. My tuner said to get some km's up on it.

Edited by The Mafia
With regards to the turbine housing size of the vg30.

I've been speaking to ATS here in Adelaide, he said there are no documented specs on the RB20/25DET and VG30DET turbine housing. He has measured up the VG30DET turbine housing and said it is some where around the .72 size.

The RB25det turbine housing on the other hand is a .6 something, not a .4 like some of us believe.

If he is right or not is another thing. :)

That would be news to alot of reputable tuners.

I really need the power excel software and cable for my power FC :P I feel sorry for my tuner having to use that bloody hand controller. It really is a pain in the ass to use, going back and forth between the map tracer and maps

I'm tempted to get a link... But we went to all the trouble to install the q45 afm..

Edited by The Mafia

Cubes , actually less blades means less likely to surge at lower engine rpm . Its the less load factor on the turbine that helps it get up to productive speed given the same exhaust gas flow . The GT compressor is designed to work over a wider speed range and its top end airflow is a little better (and cooler) than the T04S . Some feel that the plumbing size out of those T04S covers is a little large at 2.5" for a 76mm compressor wheel be it GT37 or T04S , I reckon if the power can be had with conservative pipe sizes why not . The XR6T uses an E cover with 2" outlet for 240-270 Kw though it is a low boost aplication .

We shall see , best of luck Mr Mafia

cheers A .

I'm pretty surei ts a full face, got no idea on the brand. My tuner says that if it came down to the bottom line, it would be this one or a Jim Berry clutch.

The only difference is that this one has a different center than what jim uses (I think jim uses your own or a rb26 center)

anyway, my tuner has put these clutches in 300rwkw Commodores etc and hasn't had any problems at all with them, so I should be safe. I want the car to be very streetable, but aggressive, and this seemed to be the perfect clutch. I didn't need a amazing super heavy duty shiny extreme performace brand named clutch... Just a built one that was proven. :D

I am going to try and get one of my mates to tidy the tune up this weekend for me so its a little more drivable, as he's got a sniffer, and knows the powerfc very very well. Built and Tuned his own GTR.

Edited by The Mafia

The only issue I've found with organic clutches is they tend to heat up from clutch riding launches launches.

So... Don't ride it when launching. :D

I used to get off the line super quick, click second to have it slipping due to overheating the clutch on the launch.

Not that you should be riding a ceramic clutch. At the moment I find I don't have to ride the clutch due to the 3ltr.

Edited by Cubes
yeah, and I lose all my tuning ($500 worth)

I just spoke to my tuner and he said that I may have fried the little stepper motor that controls the idle, so I am going to pull it off tonight and see if it moves. If it appears to be working properly, I am going to grab a laptop and map out the ignition and injector maps on an excell spreadsheet, and reset the power FC and do the idle learning.

My tuner (he is a pretty good mate too, mates with my fabricator friend lol..small town) said not to lose the current tune as it will be a good starting point. I really hope I can get some good power out of my motor. Torque mainly. He did say it was a bit of a freak to be a 1996 and have 169psi accross all cylinders and only 2% leakdown, and should go well.

Must be the oil and tune hey? I run Shell Helix 5w40 Fully Synthetic, and change it every 5,000 kms.

:P

Myself and Ashton (fabricator friend) are gonig to change the clutch on saturday. My tuner is giving me a RB25 Flywheel to get machined, so that I can put it in and give him my flywheel to swap (cause we won't be able to get it machined on a saturday)

anyway, its looking good.

Checked Nengun, the injectors won't leave Japan till the 9th of october.. must be a shortage  :P oh well, plenty of time eh  ;)

I will keep this thread updated. Oh and if anyone has any tips, you are more than welcome to share them.

And I again say thanks to Paulr33, he's a value to the SAU community. If you own a Skyline, definately go and have a look at his site (in his sig)

The project has only begun.

Make sure you get NEW O rings and other ancilliries for the Injectors from Nissan before you start the Injector upgrade, because they are not supplied.

Ken

got a rough tune from my mate that has a sniffer. He sat as a passenger, grabbed the hand controller and went to work. Very intelligent guy.

Got it back to around 200rwkw with 7psi of boost.

Need those injectors for a worth while tune!

INASNT im in noway saying the sard 550's are direct replacement, far from it i reckon, needing the damn collars. I was referring to if he got some nismo sort which are from what ive heard supposed to be a real direct replacement injector. If so, then they might not supply new o rings with them, but require you to get a new set or reuse the old ones from the std injectors.

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

    • Seat of the pants assessment of the new intake: The car is way less "doughy" when hitting the loud pedal, especially off idle when stopped or in traffic, I did use a cheapo lazer thermal thingo to measure the temp around where the pod filter got its air, it was between 55 - 60°C, in saying this the car was shut off and not moving, so the OEM intake pipe was not supplying any fresh air to where the pod was when the car was at least moving A weird bonus was induction noise on the throttle in the cabin increased a bit,  I was worried that I was actually going to lose some of that induction noise I love so much, outside though, when I got the daughter to do a WOT drive by pass for me, the induction noise has increased alot when on the throttle, not quite ITB doort, but well up there I'm extremely happy with the results and have been exploring the country roads in the region  As for house mods: 1.New front fence is up and is awesome, it really upgraded how the joint looks from the street, and the added security is nice 2. Electricians have replace some interior lights, and with more lighting in the garage, a few new motion detecting lights out the front above the garage, front room, and at the front door, which I have already found heaps helpful coming and going, also now has fancy pants CCTV all round the house The only hold point for power though is the solar and batteries due to supply issues, although this will happen over the next few weeks 3. I have done a heap of landscaping out the front and I'm almost ready to do a new small retaining wall with some nice blocks to replace the brick and cemented in rocks around the raised garden beds cemented in river stone "was the fashion at the time" the house was built. I currently have a pallet of retaining wall blocks and 2 bulka bags of 20mm blue metal to replace the wood chip that is in the raised garden beds around the house 4. I now have 3 big raised garden beds for out the back to grow some vegetables, about 70cm high, 200cm long and 100cm wide 5. My 2 compost bins are already pretty full with brown, green and kitchen waste from the landscaping I'vedone so far, but they will probably take a few months to break down, so anything else that gets chopped, trimmed, and kitchen waste will just start filling the base of the raised garden beds to about 30cm before I start throwing 40cm of good compost, and stuff, for the vegetables to grow in, I'll need a few ton of compost and soil, but the local supplier can sent me bulka bags of the stuff Basically the logs, wood chips and a few strategically placed rocks for drainage, will give the beds some good organic materials down low to break down over time, and they will hold moisture during the warmer months to save the water in my big arse water tank if we don't get alot of rain So, all in all, the car and house mods are going well, and I'm really enjoying being retired, I sleep in too 0700 and slowly plod around inside until I feel like actually doing anything, and only work in the yard for as long as want, which has actually been alot over the last few weeks,  although when you look at it, it seems that not a huge amount of work has been done,  until I look at the before I started the work pics Happy days and good times indeed 
    • hahaha yeah. Plan is to get side skirts and probably just rear pods. But going to do them one-by-one. I've got a set that I really like from RHDJapen, but that one isn't shipped to AU. So need to find someone who can get it for me
    • Here's an idea, answer the questions I asked you as they are trying to work out WHY the LSD will be binding up in a straight line.
    • You haven't driven many modern cars then have you? Most of them have sfa steering feel with their stupid electric bullshit steering systems.
×
×
  • Create New...