Jump to content
SAU Community

Recommended Posts

Stao is it possible to put any of those units on hold?

I have a build coming soon which would be fantastic with one of those turbos.

Yes, got plenty of bits ready to start when you are ready.

Also recently got a CNC lathe in place, unfortunately no one knows how to get this thing to work. I'm having a programmer in next week setting up some programs for compressor and turbine machinery work. It will be able to save heaps of man labor and work at a much faster rate. Overall saving will be put on to our customers.

  • Like 1

Has the SS1PU had many changes in the past year or so since I purchased it?

I'll be pulling it out closer to Christmas and putting it into another car but will send it to you to upgrade it if you have come up with different options for it.

Cheers

Has the SS1PU had many changes in the past year or so since I purchased it?

I'll be pulling it out closer to Christmas and putting it into another car but will send it to you to upgrade it if you have come up with different options for it.

Cheers

SS4 alpha CBB+VNT.

DO IT top bloke!!

  • Like 1

Been a while since I posted in this thread!

It's been a long time coming, but I finally got the SS1PU running on E85. So while ya'll gawk over top end power and laggy dyno queen status, here is a win for the guys chasing factory response and look with not so factory power :P

Bottom red line is existing 98 tune

Top red line is E85 with cat

Black line is E85 without cat

All @ 15-16psi

pKP1oYte_original.jpg

Now, some important things to remember about this setup:

It has a 20rwkw gain in the top end, over the 98 tune, which you might say is not much for an E85 conversion. But look to the midrange and there is nearly 35rwkw gained in some places. It is a very engine safe tune at only 15-16psi.

Obviously there is a top end restriction somewhere, but I didn't want to go replacing factory looking bits here and there with modified gear to chase some ponies up top for the sake of bragging rights. Being a daily driver, I care more about the low down and the midrange; the big area under the curve that starts very early in the rev range. This is what makes for drivability.

Consequently, binning the cat was as far as I was willing to go to improve the top end and that did give me some extra midrange, plus another 11rwkw up top. We originally thought the cat might be the big restriction holding us back up top, but the reality is that it was just one of many: My engine has a return flow cooler, factory intake piping, internally wastegated turbo that is highflowed into a Nissan comp housing and a fairly quiet 3 inch system. Ergo, my engine bay, with the exception of my pod filter (because I love the sound), looks COMPLETELY STOCK and has 272rwkw to boot.

As for the on-road experience, wow. The SS1PU was already something special; I've said it many a time that anyone looking for a daily drivable RB25 with some guts should opt for one of these turbos. It just made my car so much more driveable off and on boost than the standard turbo. It really is the perfect compromise between power and response in my opinion. This was before ethanol! With ethanol, my car comes on boost as fast as the factory turbo did. And when it comes on, the boost gauge spools up like a friggen tacho revving in neutral. The power is still very linear in delivery (as you can see on the graph), which is great for tyre grip, but don't get me wrong...the pull is ballistic. Any SS1PU owner will tell you that 3rd is their favourite gear because the turbo is a torque monster and just keeps pulling like a V8 at high speeds in higher gears. Well this is that on steroids!

I will have a go at converting the speed on the graph to RPM like I did last time, so you can get an idea of the response. But you don't really need it to see how early it gets on or how fast it ramps up.

And then there's the the smell of sugar and PVA glue while you're sitting at the lights...

  • Like 1

Prior to ethanol, I was pulling away from a VE GTS in 2nd and 3rd. This tune should give me the edge on some of the quicker Eurotrash; M series Beamers, entry level 911s etc.

Might have to get the old G-tech out and do some 0-100 times. Won't be an accurate representation given 1st gear doesn't really work anymore lol

Awesome to see birds!

When I get my new car and transfer the SS1PU over then I will be following the same route.

Might even send it off to get stao to put it into the factory housing depending on costs involved.

Loving how responsive it becomes on the E85

As you said they are already an animal turbo on 98

Ethanol is the ducks nuts. Got my flex fuel setup 90% finished last week, car struggled to make 320rwhp on 98 and then went 390rwhp @19psi on E53. Love the stuff!

Birds, you planning on hitting the strip to back up the numbers?

That is about the same result power wise I got with E70 and a GTRS . Like yours I use all the std plumbing inc the air box and snorkel and with a Blitz return flow IC . Granted I do have a bit of porting and Tomei 256s , and a Nismo exhaust with a large body ceramic cat .

I'm guessing the Hypergear has a bit more turbine and housing than a GTRS which should make it rev a bit faster .

Good result cheers A .

It's interesting you say that, because previously we drew comparison between the SS1PU and the HKS GT-RS in terms of power and response. So it doesn't surprise me that your ethanol results should be similar. Props to Stao for making something that can hang with top shelf Jap engineering!

The more I drive it, the more I love it. It just has oodles of power everywhere and I never feel like I'm in the wrong gear. The ethanol not only reduces the amount of time spent off boost, but makes off boost a quicker accelerating range to be in, adding to drivability. Looking at the torque graph probably tells this story better. Loving decat sound; how I missed the rasp and deeper note.

Took a bit to get the car started today...now know that feel bro re: winter starts for E85. Interestingly though, once warmed up the car starts quicker than unleaded did. Look forward to reporting on economy or lack thereof come fill up time.

Ethanol is the ducks nuts. Got my flex fuel setup 90% finished last week, car struggled to make 320rwhp on 98 and then went 390rwhp @19psi on E53. Love the stuff!

Birds, you planning on hitting the strip to back up the numbers?

The converted know!!!

Yup that is the plan, however I don't think I'll do it justice with strip numbers. I have 265 Toyo R1Rs on the rear and, whilst a great tyre in the corners, they struggle off the line; 1st is practically useless; I'd have to baby it, so there goes my launch. 2nd can hold with a good grippy section of road, but we'll try anyway!

Lucky most of my racing happens in rolling drags at higher gears :)

Good work birds, some thing like that is ideal for every day driving.

Yes the SS1PU has been upgraded few times since. The latest one is engineered to prevent the level of boost tappering in upper rev range more specifically for an internally gated application. So with few more psi of boost it will have better upper rev power and torque.

It's interesting you say that, because previously we drew comparison between the SS1PU and the HKS GT-RS in terms of power and response. So it doesn't surprise me that your ethanol results should be similar. Props to Stao for making something that can hang with top shelf Jap engineering!

The more I drive it, the more I love it. It just has oodles of power everywhere and I never feel like I'm in the wrong gear. The ethanol not only reduces the amount of time spent off boost, but makes off boost a quicker accelerating range to be in, adding to drivability. Looking at the torque graph probably tells this story better. Loving decat sound; how I missed the rasp and deeper note.

Took a bit to get the car started today...now know that feel bro re: winter starts for E85. Interestingly though, once warmed up the car starts quicker than unleaded did. Look forward to reporting on economy or lack thereof come fill up time.

Interesting that. Mine cold starts as easily on E85 as it does on any other ethanol percentage. My car is honestly just better at everything on ethanol, though admittedly on full 85 the economy goes out the window haha. But I just keep it at about E60 so that I get the full knock resistance and most of the other benefits of the fuel, without the huge amount of extra fuel needed. On the track I'll use full E85.

The converted know!!!

Yup that is the plan, however I don't think I'll do it justice with strip numbers. I have 265 Toyo R1Rs on the rear and, whilst a great tyre in the corners, they struggle off the line; 1st is practically useless; I'd have to baby it, so there goes my launch. 2nd can hold with a good grippy section of road, but we'll try anyway!

Lucky most of my racing happens in rolling drags at higher gears :)

Dont even worry about your ET until you get some practice. Your trap speeds will tell the real story.

One tip for improving your times though - don't worry about racing the guy lining up next to you. Just do your own thing and don't worry about the start light, your time doesn't start until you move so until you can get the launch and things down there isn't much point trying to race. Loads of fun though :D

Hi all, I've got an ATR43-SS2 going in the car next week, it's an R34 GTT. I understand it's a bit of a tight fit, are any of you guys running the OEM heat shield (or an alternative) with this turbo?

Manuel Kasko, on 29 Sept 2013 - 13:36, said:

Nice stao.

Are you able to do that inside of a stock R34 turbo?

Can reuse factory compressor end, not the turbine end. Which gives it a factory look.

Birds. For the drags you will need some 275 MTs, run them at 18psi, and worm them up nicely. If the launch is perfect then a good time is more promising.

One thing I didn't like about Heathcote is how they washes rubber residuals at the start of runway with water every time a car lunches. So we always taking off on wet tires.

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

    • Wideband is worth setting up if only for tuning purposes. I would not mess with the ignition system unless there's a misfire. HKS crank trigger is popular out here for the relatively easily sourced Denso crank sensor, not a bad idea to install as well regardless of power level on a standalone. Boost leak test is worth thinking about. Oil pressure sensor tied to a fuel cut isn't a bad idea either. Getting the tune figured out is a good idea. Without putting eyes on it and getting under it there's no way for us to tell you exactly what it needs but most likely you're down to the last 10% that will make a big, big difference in how happy you are with the car.
    • Doing a refresh of my 33 and can see a few websites stating they sell the entire main carpet for our cars, but they all have generic photos which is fine, i understand they are custom made to order.  Just seeing if anyone has got it done or had any experience with this, as i would only want to do it if the fit and finish was as good as oem https://carmatsdirect.com.au/products/moulded-carpet-or-vinyl-for-nissan-skyline-r33-1993-1998-coupe https://knoxautocarpets.com.au/moulded-carpets/nissan/skyline/skyline-r-33-1993-1998/
    • Any plans for E85? If so, add flex fuel sensor.   I'd probably add in the sensors I mentioned above if the Link will support using them for engine protection. With water pressure, you need to be able to effectively set it that "If temp > X, and pressure = atmospheric, shutdown" as at running temp, you should be able to read pressure in the cooling system. If pressure suddenly disappears, it means the water went some where, and this is a quicker reaction than waiting on water temp to go up (Which, can take a little longer than you'd like, considering it now has to wait for hot air to heat it up) Oil pressure, Oil temp, both would be on my list too if you're looking to add sensors. Wideband O2. And at least one EGT sensor. If you're feeling deluxe, put in individual runner EGTs. Single EGT sensor is more so forget about a specific number, get used to "What is normal EGTs", and then keep an eye on it, if it starts going away from "normal" it's a sign something is wrong (Also, things like the tune can still start going out of spec, but EGTs may not show it, for example one injector starts running leaning, so ECU richens everything up, now 5 out of 6 cylinders are rich, and running cool, with one cylinder lean and running hotter, so it's not perfect) Then there is your other things to look at non sensor related, but you may have already done, or have underway, and that would be things like building a sump for more oil, and better oil control under high G-Forces (Cornering, brakes, acceleration). Basically, the above is worth looking/thinking about, if the ECU can do protective stuff with it, and you continue to use it how you are (Drive it to the track, thrash it, drive home, repeat once every 3 to 4 months)
    • Can also confirm these work a treat for most balljoints and bushes. If you have access to a big rattle gun, they make the job so much easier and quicker, compared to using a socket wrench or shifter on the c-clamp 👍
    • Its sort of street but got used for circuit sprints on account of I never drive it on the road because I dont have the time to spare. So it usage was sits around for months at a time then gets driven either 50 or 250 kms to the track followed by 20 laps followed by 50 or 250kms home followed by stuck in the shed until next time. So yeah neither fish nor fowl. Just dont want to break it on the track as a preference. Hence the fairly short sensor/mod list. Probably more worried about it pinging itself to destruction more so than anything oil related.
×
×
  • Create New...