Jump to content
SAU Community

Hypergear Turbochargers and High flow Services Development thread


Recommended Posts

This is a prototype ATR43 G4 520HP CHRA. It runs on shortened bearings and weigh reduced turbine for maximum response. engineered to produce about 300rwkws at 20psi on .63 ATR43's turbine housing using RB25det engine with supporting mods.

The smaller one on the photo is ATR43 G1 350HP CHRA. Its made for 240rwkws with excellent street response.

3.jpg

5.jpg

1.jpg

2.jpg

4.jpg

Link to comment
Share on other sites

Compare to ATR28G4 it has lighter turbine with shorter bearings. So it should have slightly better response. I might update this CHRA into the ATR28G4 once its been evaluated.

Turbine housing is getting made. I'm going to swap this 2x with my existing high flowing customers. probably Geraus and SS8_Gohan for some dyno and evaluation results.

For time been we will still be using proven ATR28 CHRAs. Price wise I don't know at this stage. depends on how much it cost to build the rear housing.

Link to comment
Share on other sites

hi,

i skimmed through quickly but didnt find the exact answer i was looking for.

what turbo would you suggest is the most efficient/responsive for a Rb20(r32) wanting to make 240-250rwkw while keeping the stock manifold, but being externally gated.

thanks.

Link to comment
Share on other sites

hi,

i skimmed through quickly but didnt find the exact answer i was looking for.

what turbo would you suggest is the most efficient/responsive for a Rb20(r32) wanting to make 240-250rwkw while keeping the stock manifold, but being externally gated.

thanks.

i went with a ATR28G3 with 0.63 internal gate rear for my rb20... i'm looking for a tad more power than you

so maybe look at a ATR28G2

Link to comment
Share on other sites

hook us up Stao :P:ninja:

we going to need new dumps? and am i going to have to run stuff in again... done so much friggen running in with this car :P

EDIT: so are you saying these will be laggier or potentially, they might be a little more responsive and make a bit more power?

Link to comment
Share on other sites

The Very first ATR43i 520HP G4 in T3 .64 Turbine is complete:

atr43f.jpg

atr43b.jpg

We'll be making few more different A/Red turbine housings in the next few weeks. We will also be engineering a 650HP profile CHRA to suit a .84 Bolton Rear housing.

Link to comment
Share on other sites

Well stock turbo won't make 520HP. Bigger turbos will creat more lag. This is a G4 profile, made for 300rwkws.

We also have this in G1 and G2 profiles which are rated 350HP and 450HP. The G1 would have very similar response as the stock turbo to produce max of 240rwkws, G2 is about 300RPM laggier but but its good for upto 270rwkws.

Price wise This turbo is $1300 to complete. With normal Turbine housing which comes out in a Vband rear is $1050 internally gated. or $950 externally gated with a 5 bolt flange.

Link to comment
Share on other sites

didn't i have a G2 originally? that was about 230rwkw at 15psi -

gotta remember, "most" people won't be bolting these onto built engines (IMO) - they'll chuck em on, run 15/16/17psi and that's probably about it. I'm only running a bit more boost because of E85, otherwise, 17psi would probably be my max.

will give you a call/email asap about the .63

Link to comment
Share on other sites

Yes but that was in stock R33's turbine housing. Now they are running in a .63 T3x rear housing, The spec of it is very similar to a GT3071. So it should make around 260rwkws at 18psi of boost on 98 fuel

Link to comment
Share on other sites

Yes but that was in stock R33's turbine housing. Now they are running in a .63 T3x rear housing, The spec of it is very similar to a GT3071. So it should make around 260rwkws at 18psi of boost on 98 fuel

do you also make this turbo with an externally gated rear housing?

Link to comment
Share on other sites

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

    • 215/45/18 tyres are probably a little on the low side compared to the factory tyre, it should be closer to a 245/45/19, which will get you about an extra 11mm of height, and should make you speedo read a bit closer to reality. 245/45/19s will be a bit too far the other way and you risk a speeding ticket as your speedo might read slower than your actual speed.  245/40/19s would be correct if you are going to 19in rims, they will give you a similar total diameter to the 245/45/18 tyres.  
    • That's something I forgot to put in my list. The aggressive anti-squat in R32 is a f**king menace. I still need to decide if I'm going to drag the subframe out of my car and weld in the GKTech corrector kit. The main reason to dither is the need to switch to spherical joints in the lower arm to account for the twist induced in the rear pivot caused by lowering the front pivot. And yes...we do put better subframes in R32s, and I wish I'd gotten an S14 one instead of an A31 when I did the "take off and nuke it from orbit" HICAS delete all those years ago.
    • I have been looking at some setting on the alarms for the Q60 and what buttons do and so and also been looking for details on the alarm in my V37 which is a standard issue with the car. settings like window roll up and a few others seem to not work at all. i cant seem to find exact info on V37 alarms so Q60 is all i can really go off i have not tried 400Z alarm settings or info yet so that will be next. any one got like a sheet of info on the alarm system in the V37 as all my documents are in japanese but i thought the system would basically be like standard through similar models? 
    • I had a fuel smell coming from the drivers rear and pulled the tank out to inspect where it was coming from, turns out the breather hose from the tank to the filler neck was perished. I’m going to Japan next week and I’ll grab it while I’m there  pulled the oil tank apart and started cleaning this crap out of it, some brake cleaner and rags got it looking new again 
    • Hmm. Was quite a few years ago now. I think I bought from a crowd in the US called CDT Audio. The speaker is the HD-6. The HD-6CF would have been the better option (based on T-S parameters), but they were discontinued in 4 ohm at that point in time. The HD-6 is a better driver in almost every other way (than the CF) - just not as good in IB. They still do the HD-6. They might even have a more suitable (for IB) option here.https://www.cdtaudio.com/cdtnew22/products/components/woofers/midwoofers/midwoofers.htm But, here's the rub. I was working in the US a lot back then, so I got them delivered to my US office and then just brought them back to OZ myself. I don't know if they will ship to OZ, and it probably wouldn't be great cost-wise anyway. As to results. They're driven direct off the rear channels of my headunit, because the headunit can be setup to run the rears as subs. So, not a lot of power being fed there. Nevertheless, there's no shortage of volume - the sub levels don't need or want to be boosted at all. The bass is definitely not what you would call "tight". It is definitely a bit delayed compared to a proper sub. But, with the great front soundstage and really good 6.5" woofers in the front doors, I'm getting most of the bass detail from the front and the rear is really only to extend the bottom end a bit. Works for what I'm doing. I mean - until recently you couldn't really hold a conversation in my car due to the fuel pump, and for many years I had tyres so noisy (Kumho KU36 at <50 tread depth) that I had to drive with earplugs anyway!
×
×
  • Create New...