hypergear

A very good video and result to share from a none VCT (Cams with cam gears) SR20det making 368rwkws powered by a ATR43SS2 BB turbocharger. externally gated on E85 fuel. car makes 200rwkws @ 4000RPM.

This one is a smaller version of Gen 2 3582. So it will make a nice and responsive compound spooler for the GTX4202.

This is the final tune with stock cams unless something new come up. Car made a nice and responsive 537rwkws @ 36psi on E85 fuel, making 225rwkws @ 4000RPM, I will be moving into internally gated turbos for the coming weeks and hopefully some of the latest externally gated models can be made into high flows and RB bolt on turbos. R34 GTT Rb25det NEO Stock Cams Nitto Pistons and Rods. 9:1 CPR HyperGear ATR45SS-2 Turbocharger ID 1500cc injectors Twin Walbro 525L fuel pump Adaptronic Plugin ECU Greedy Profect B EBC 600x300x81mm PWR Cooler kit 3inches turbo back exhaust 4inches intake pipe with Pod Split fire coil packs Twin pulse manifold and twin 40mm gate. Car made 537rwkws @ 36psi, E85 fuel. With 225rwkws @ 4000RPM. Cams are maxed https://hypergearturbos.com/images/dynosheets/atr45/atr45ss2537rwkw/power.jpg https://hypergearturbos.com/images/dynosheets/atr45/atr45ss2537rwkw/boost.jpg

R34 GTT Rb25det NEO Stock Cams Nitto Pistons and Rods. 9:1 CPR HyperGear ATR45SS-2 Turbocharger ID 1500cc injectors Twin Walbro 525L fuel pump Adaptronic Plugin ECU Greedy Profect B EBC 600x300x81mm PWR Cooler kit 3inches turbo back exhaust 4inches intake pipe with Pod Split fire coil packs Twin pulse manifold and twin 40mm gate. Car made 537rwkws @ 36psi, E85 fuel. With 225rwkws @ 4000RPM. Cams are maxed https://hypergearturbos.com/images/dynosheets/atr45/atr45ss2537rwkw/power.jpg https://hypergearturbos.com/images/dynosheets/atr45/atr45ss2537rwkw/boost.jpg

I can get it to make around 240rwkws reasonably responsive, but 300rwkws internally gated will be a big call for Rb20det. I guess you can run an ATR45SAT in it and see how that would respond, but its won't be anything nice to drive in a Rb20det.

Hi. ATR28 has standard cast wheels while the SS series has billet front wheels, SS class is also under rapid updates for better power and response. ATR28SS15 would be something similar to a GTX2867R, made 280rwkws P98 fuel internally gated on a built SR20det with 272/12 cams and very responsive to drive.

Correct

The one in video above is a compact model with 3 inches inlet. I've used GT2 before, PWR currently on the car made more power. For cooler piping, you will need a 2 to 2.5 inches 90 degrees long let silicon hose and for intake I've used a 3 to 4 inches 45 degree hose and 4 inches metal pipe plus pod. You can find all bits and pieces from your local Autobarn stores.

Hi, BB model has the same bolt pattern as a GT30 core with water banjo adapter and oil drain adapter supplied. It fits stock manifold and dump. For a internally gated bolt on ATR45sat we build a compact version with a 3 inches inlet, that will do around 300rwkws in usual cases on P98 fuel, and will be capable of making welling above 400rwkws once externally gated on E85. ID1000CC made on my car at 440rwkws, AFM is recommended inside the cooler piping.

Following up the ATR45SS-2 test conducted last year Dec on the hottest day in Vic of the year that made 472rwkws @ 28psi running out of fuel. That test has been completed few days ago, maxed at 552rwkws @ 38psi. It seems like factory engine head is finally maxed out. Dyno run below consist of ATR45SS-2 V ATR45SS-1, the smaller one is a much nicer turbo to drive with plenty of power band. Will be conducting some more work with current high flow series next and see if current record can be broken.

Yes I was get around 170psi on a healthy Neo motor as well. None Neo motor was sitting around 160psi.

Yes PWR has a pricey vertical flow cooler for the R34. I've already trailed it, its no different to the blitz.

G4 comes with one size bigger wheels. roughly 25kws difference in power compare to the G3. Trying to push 270rwkws out of blitz return flow is like pushing 520rwkws out of stock cams. So yes to ATR45SAT.

Alternatively you can use standard G3 profiled 21U high flow thats bolton to factory location with minimum fabrication work. Made 282rwkws on P98 fuel and 330rwkws on E85 internally gated, super responsive.

I don't think u will see much more then 270rwkws with a Blitz return flow cooler. Fitment of it is on Video below. O nP98 fuel, Power wise G4 high flow maxed towards 300rwkws, while ATR45SAT maxed at 322rwkws. I'm placing an bulk order for PWR 600x300x79mm coolers at a discounted price. if any one wants them let me know.