Jump to content
SAU Community

Recommended Posts

Is there any truth to the fact that the HKS turbos use a steel bearing race vs the Garrets using plastic?

I'm modding up a pair of -5 garrett's at the moment, bought a lathe and measured up the stock nylon bearing cages.

Made some new cages from brass rod (there are different grades) and after a few attempts finally got 4 ready to go.

In the process of pulling the turbo's I'm going to use apart, fit the cages and fit to my car :)

Quite a fiddly and precise job!

post-12712-0-23731200-1389777273_thumb.jpg

  • Like 1

If your talking about the car I think you are, it went in another dyno and made 312kw

if this is in reference to my car's run at unigroup dyno day, there are a few factors that contributed to the low reading

1. it was boiling hot! the 370ish that was made was in winter on a cold night compared to a 38 degree day. Even Yavuz mentioned that the car's he tuned were making 10-15kw less

2. the aftermarket BOVs were stuffed and were causing a boost leak, which Yavuz could hear as well.

I ran 11.7 @ 118mph with leaking bovs too actually so there was def a drop in power

I took it back to powertune a few days later and it made 330kw with the same problem

the BOVs have now been fixed (currently has no BOVs actually)

last dyno run was around 355kw mark which as mentioned above seems to be the limit of -9s

I want to put new BOVs back on soon and see if i I can get back to that magical 370kw it once made... will need perfect conditions i would have thought

if this is in reference to my car's run at unigroup dyno day, there are a few factors that contributed to the low reading

1. it was boiling hot! the 370ish that was made was in winter on a cold night compared to a 38 degree day. Even Yavuz mentioned that the car's he tuned were making 10-15kw less

2. the aftermarket BOVs were stuffed and were causing a boost leak, which Yavuz could hear as well.

I ran 11.7 @ 118mph with leaking bovs too actually so there was def a drop in power

I took it back to powertune a few days later and it made 330kw with the same problem

the BOVs have now been fixed (currently has no BOVs actually)

last dyno run was around 355kw mark which as mentioned above seems to be the limit of -9s

I want to put new BOVs back on soon and see if i I can get back to that magical 370kw it once made... will need perfect conditions i would have thought

Very nice power figures for -9s. Do you have a build thread?

if this is in reference to my car's run at unigroup dyno day, there are a few factors that contributed to the low reading

1. it was boiling hot! the 370ish that was made was in winter on a cold night compared to a 38 degree day. Even Yavuz mentioned that the car's he tuned were making 10-15kw less

2. the aftermarket BOVs were stuffed and were causing a boost leak, which Yavuz could hear as well.

I ran 11.7 @ 118mph with leaking bovs too actually so there was def a drop in power

I took it back to powertune a few days later and it made 330kw with the same problem

the BOVs have now been fixed (currently has no BOVs actually)

last dyno run was around 355kw mark which as mentioned above seems to be the limit of -9s

I want to put new BOVs back on soon and see if i I can get back to that magical 370kw it once made... will need perfect conditions i would have thought

Is that E85??

I'm making 350kw -9s on 98 I maybe going to e85 this year and see what they can push

Probably find you won't make anymore Nick, guessing yours are falling over above 7000-7500rpm like everyone else in the boost/airflow department?

What you will get though is midrange. You can jam more boost in the mid range... That said I was running 23-24psi @ about 4000rpm on 98 that then fell back to 17-18psi (as turbos ran outta flow) over 7000rpm.

Probably find you won't make anymore Nick, guessing yours are falling over above 7000-7500rpm like everyone else in the boost/airflow department?

What you will get though is midrange. You can jam more boost in the mid range... That said I was running 23-24psi @ about 4000rpm on 98 that then fell back to 17-18psi (as turbos ran outta flow) over 7000rpm.

Thats what i was thinking Ash, Thats right they do start to fall over there, half the time on track im shifting at 7000-7500 as they do run out of puff in the higher rpms

A fatter midrange on track would be good and all the cooling benefits of e85 blah blah lol

Hi there has anyone had any experience with using water methanol injection setup.

I have heard some great power gains with these kits but I'm after hard evidence before I consider installing one to my GTR.

I'm running -9s on 98 Ron making 340RWKW.

Any info would be greatly appreciated.

Cheers,

Dave.

Hi there has anyone had any experience with using water methanol injection setup.

I have heard some great power gains with these kits but I'm after hard evidence before I consider installing one to my GTR.

I'm running -9s on 98 Ron making 340RWKW.

Any info would be greatly appreciated.

Cheers,

Dave.

http://www.skylinesaustralia.com/forums/topic/396164-lets-talk-water-meth-injection/

  • Like 1

Is that E85??

I'm making 350kw -9s on 98 I maybe going to e85 this year and see what they can push

yes, mine is on e85, however my motor is stock.... only work apart from injectors is a metal headgasket, stock cams and head are probably holding back some power.

  • Like 1
  • 2 weeks later...

having read this thread in its entirety over the last 24 hours.. i have a few comments.

firstly: people need to fking read a thread if they are going to post on it.. there must have been 30 times the question is asked "are GT-SS the same as -9's" when it was answered 8 pages earlier..

secondly: its close minded to beleive that just because all you want is instant response in a car and that someone else is dumb for not agreeing with you, or will regret not going that option down the track. people are different. peoples tastes are different. and its their right to decide what they like.. maybe it hasnt occured some that there are people who own a fast car who enjoy the rush when boost kicks in hard at 4.5-5k and they want that in their daily, because thats what they like. And they're prepared to put up with a bit of unresponsiveness. Its their prerogative to do so.

further; by saying "that setup is just going to get you to lose your license" is not exaclty a valid argument. so will doing 60 in a 50 zone, if you get caught enough times. pretty well every car on the road has the capacity to have you lose your license if you drive like a tool. Maybe the owner takes the freeway home from work and hauls ass up to 100 in second on the on ramp, and thats how he deals with the stress of life. who knows.

rant over.

im still undecided between -9s and -5s for my turbo replacement, after my tune with r32 N1s which are very lazy (max boost around 5k) they need to go! and i figure since im used to them taking their sweet ass time to come on perhaps -5s are the go for future upgradability higher top end and bearable lag. it just seems to me that there needs to be a set to bridge the -5/-9 gap..

on a side note has anyone ever used twin 2860rs's? their flow map looks like it has a more usable spread then the -5's with slightly lower peak flow.

Dan

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

    • Join SAU NSW for a flame-grilled feed & flame-spitting cruise! Sunday 17th August 2025 3:30PM Meeting Archies Flame Grille Sylvania Waters 4:45PM Cruise Departure 5:15PM Arrival at Cape Solander Kurnell Meet Location: Archies Flame Grille Final Destination: Cape Solander Kurnell *Disclaimer* There will be a lead and follow car so no one should get lost. If you would like to attend or bring others along please put your name down and a +1 as numbers will be needed prior! This is NOT a race and we will all be adhering to all road rules. If this is what you want please come to one of our many track days. This is an official SAU:NSW event and will be run under a CAMS permit. One of the things that really sets our club apart is our commitment to being true enthusiasts. When on normal roads we strive to maintain good relations with the authorities as well as the public in general. When attending one of Skylines Australia NSW events please try to: • Be aware of surrounding environment and act accordingly. • Drive courteously on the state’s roads as a true enthusiast should. • Understand how important it is to maintain the good name of SAU NSW and thus, treat others accordingly. • Any misbehavior will not be tolerated and you will be asked to leave.
    • Yeah good luck out there! Will be good to see a mighty GTST going harder than the GTRs
    • i will be there 😁
    • Hello!  i just finished manual swaping my r34 skyline with a r33 rb20de box(RB71C)box  When the car is running it squeaks crazy loud and it was smoking from the gearbox area. The gearbox is fine it was tested. The clutch slave cylinder seems like it doesn't fully releases the clutch. I want to ask if this noise is from the throw out bearing or could it be the clutch assembly or disk att.xFliq87Gzw6kImKBVqDebXkj0fBqymk0JaYeP3_3SlM.mp4
    • A few small updates since the previous post and lessons. I decided to do a little interior light upgrade on the 110. I quite like the iilumo items, even if they're a bit of a premium over other brands. You'll also note the Stedi Fogs, that will go into the S15 fog lights as I needed to match the bulbs since I got the new ones earlier. I hope they fit as the body is quite a bit longer than your normal bulb.  Annoyingly, I managed to trip the fuse, which normally wouldn't be an issue until I located the fuse. I can't say I've ever come across this. I had lucked out that someone nearby had a spare, but oddly enough Toyota dealerships seem to keep this in stock. I ordered some to keep in my stash and as luck would have it, someone else nearby tripped the same fuse so I passed on the favour.  I also did a little service on the 110 ahead of some additional work coming up. It's been annoying that Goleby's stopped carrying this particular HKS filter for the 110, so now I need to keep them on order from Japan. I also took the opportunity to install a bash plate and number plate riser. The plate riser is such a cheap but nice fix to help really tidy up the car. I'm tempted to now also replace my headlights, on this car. Both items were from Project Aero.    I also needed to replace the rear tyres on the 110, and after trying to get it aligned learnt that I need to replace some bushes in the front end, so that's next.  Closing out this update with a nicer picture as always! 
×
×
  • Create New...