Z1 GT675RS Turbo Kits

We've taken the Disco Potato and given it a twist. Besides some modifications to make it a bolt on, the Garrett GT28RS is being used in its off the shelf form by JWT for their sport 700BB upgrade. Z1 also used this turbo in its "stock" form for a few months, but quickly realized that this turbo (the Disco Potato) wasn't well suited for the output of 1.5L (one side of the VG30DETT). It's laggy and doesn't produce substantially higher output numbers to excuse it. Through modifications in compressor cover clearances and changing the turbine housing to a smaller A/R, we have increased the response of the turbo without significantly affecting the peak output. The A/R ratio of the compressor and turbine covers are the same as the HKS 2530, with the same Garrett ball bearing center cartridge. This winning combination results in the best all around turbo for the Z32's over 500 whp, at a great price! Will flow 28psi and can produce 600+RWHP on race fuel with proper tuning and moderate modifications. These turbos feature all new components; high output compressor, high-efficiency GT series turbine and compressor wheels. Uses a 5-bolt downwpipe and comes with flange adapters for a bolt-on setup to stock pipes.

With the addition of camshafts, intercoolers, portwork, tubular manifolds and our tuning abilities, these turbos are capable of producing 700RWHP.

We've always been impressed with the performance of the HKS 2530's now we are able to offer almost identical turbos built by the same manufacturer (Garrett) for over a thousand dollars less!

Z1 GT675RS Turbos 25 psi
You can see the great response and power potential of this kit on the above dyno chart. These turbos are capable of even more power with more boost and/or modifications.

Please note, for those of you that insist on the same design as the Sport 700BB. We do offer our GT675RS kit with a .86 A/R turbine housing at no additional cost.
So you can have the exact same turbo as the Sport 700BB including all the extras that aren't included with the 700BB kit for several hundred dollars less. Its simply the best deal any way you look at it.

Kit includes:

2- New Garrett GT BB Turbochargers

2- New high pressure adjustable wastegate actuators and brackets

2- Braided Stainless Steel Oil feed lines with .035" Restrictors and fittings

2- Turbo->manifold gaskets

2- 5bolt turbo->downpipe gaskets

2- Turbo inlet gaskets

4- Oil return line gaskets

2- Oil return line spacers

2- Slotted oil return lines

2- 5ply aramid fiber high temp silicone couplers for compressor outlets

4- 225 mm T-bolt clamps

Kit also comes with flange adapters already mounted.

Installation available through Z1 at great rates.

Don't forget that you'll need our 5 bolt divorced downpipes available in the exhaust section if you don't already have a set.

Complete kit includes everything you need for installation.
A couple hundred dollars of extras that our competition doesn't give you!

At a minimum Z1 recommends the following additional modifications: Nismo 555cc (for non race applications), Nismo 740cc, PE 850cc fuel injectors, DOOLZ air intake, Z1 sidemount intercoolers, Z1 5 bolt downpipes, catback performance exhaust, Z1 ECU upgrade, and boost controller.
All available at www.300zx.com

Other upgrades although not essential will further increase the output of this turbo kit.
Z1 Testpipes, Ported or tubular manifolds, Z1 built motor with cams and portwork, and much more all available for purchase and installation at Z1. Please call us for advise on your upgrades. We install these turbo kits and tune the cars weekly so we know what works. We also have all the new OEM parts and largest selection of used parts on the planet. We have everything you need for your project.