Hypergear Turbochargers and High flow Services Development thread

[GTScotT]

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.

[hypergear]

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.

[Manuel Kasko]

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

[Trozzle]

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!!

[Birds]

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

Bottom red line is existing 98 tune

Top red line is E85 with cat

Black line is E85 without cat

All @ 15-16psi

[Birds]

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...

[Blackkers]

What boost was this at? Looks like a good result mate congrats

[Birds]

15-16psi

[Cowboy1600]

That is a seriously fat curve. The midrange looks immense.

[Birds]

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

[Manuel Kasko]

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

[Hanaldo]

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?

[discopotato03]

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 .

[Birds]

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.

[Birds]

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

[hypergear]

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.

[Manuel Kasko]

Nice stao.

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

[Hanaldo]

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

[V28VX37]

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?

[hypergear]

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.