Archives for : General

Anatoly’s 370Z TT

One of the first Fast Intentions TT kit for the 370Z happened to go on Anatoly’s Z.  This 2013 sleeper does not disappoint!  Armed with a pair of GT2860RS turbos utilizing Tial V-Band .86 turbine housings.  For fueling, we stuck with Bosch 650cc fuel injectors and Aeromotive 340lph fuel pump and keeping it a returnless system.  The factory returnless system has many bottlenecks.  Fuel upgrades for the 370Z are coming shortly to combat the shortcomings.

Video of how it sounds on the dyno.

91

91 Octane Results

100

100 Octane Results

Paul’s VG30DE Sand Rail

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Back in December Paul brought over his freshly built sand rail all of which he did himself in his garage.  Paul used the VG30DE as the heart of the power plant.  We just managed to squeeze the rail on our dyno roller.

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A Selin translator is used for air metering along with the factory Nissan ECU.

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After straightening  out some injector issues we did a baseline pull (in blue).  After some more pulls we ended up (in red) with a nice increase and smoother powerband.  A gain of 25 whp and 29 torque at 6000 RPMs.

Anthony’s 370Z TT

It’s been awhile since we last updated the blog. It’s been very busy at SZ thankfully. Thank you to all our great customers.

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Anthony brought over his GTM Stage 2 TT 370Z for some work and tuning. The heart of the kit makes use of Garrett GT2860RS turbos with an .86 turbine housing. The exhaust on Anthony’s Z was dual 2.5″ out of the turbos and necks back down to a single 2.75″ system which is really hurting the power and more importantly the efficiency. You’ll see that power is below average for a TT VHR even on 91 octane. Anthony has plans to “fix” and upgrade the entire exhaust system and make it dual 3″ throughout.

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Beautiful Work wheels complement the Z’s look and stance.

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This particular kit on Anthony’s Z was originally made for a G37 hence where the intake(s) sit.  The standard 370Z kit places the intakes forward close to the intercooler.

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91 octane for a max of 7 psi.  Once the exhaust gets squared away we should be able to make more power safely!  431 whp and 384 torque.

Rick’s 2009 GTR

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This exquisite example of a GTR came in by way looking for more power.  We were here to help make that possible.  Already equipped with a 5Zigen catback and an off the self Cobb tune we proceeded to go to work.

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First thing’s first.  The 2012+ GTRs came from the factory with larger turbo inlet pipes.  We took the opportunity to port the 2012 inlet pipe to better match the factory turbo inlet opening (pictured on the right).  You can see the huge difference on the left side.  Driver side turbo pipes.

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Passenger side turbo inlets.  2009-2011 pipe on the left and our ported 2012+ pipe on the right.

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Our passenger side turbo playing peekaboo!

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Driver side

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After the larger inlets were installed, a SZ 3″ intake was also installed.

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Larger 1100cc fuel injectors installed into the factory fuel rail so we can run ethanol.

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Secondary pump was upgraded with a Walbro “485”.

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It’s very hard to see in this picture, but right behind the intake manifold we installed our own flex fuel sensor kit.  We went after a factory look, no one would know any better that this GTR came factory a flex fuel vehicle.  Using EcuTek, we can modify the factory Nissan ECU to also perform flex fuel duties.  The sensor reports back to the ECU and the appropriate changes are made to run on any mixture of gasoline and ethanol!

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Driver side turbo (turbine) ready for the real AMS 3.5″ down pipe.

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The down pipes installed.

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Our first SZ\FI Open Y-Pipe with flex joints.

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Ready for action!  Now that its ready for flex fuel we tuned on 91 octane then switched to E85, followed by different mixtures.

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Our results on our wonderful 91 octane fuel.

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E85 tune.  We dialed this monster back too!  We could have easily hit 700 torque and 660 whp.

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A GTR dressed in red is very sexy.  Aided by SSR wheels and carbon fiber bits.

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JoZee\JoZie: A 300ZX Story

A great big thank you to Joe Gamas and the crew at ElectricFederal for a great video!  You can see a couple of blog posts from Joe and his beautiful Z32 here and here.

David’s 2007 350Z

david_iExcuse the terrible quality of the photo!

David’s 350Z came in for a tune with your basic bolt-ons such as a cold air intake, test pipes, and cat back.  We don’t typically blog on “common” dyno tunes but the results of David’s tune were impressive for the VQ35HR engine.

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We didn’t complete the baseline pull because of how far off the AFRs were (blue run).  At 4500 RPMs we picked up 9 whp and 11 torque.  An impressive 297 whp on 91 octane.  Running with the 370Zs in terms of peak power made.

Bob’s NISMO 370Z TT

Bob came back to us after first having his Z34 tuned.  This time he came back for much more.  Bob, Fast Intentions, and Specialty-Z came together to formulate a plan to turbocharge the Z.  Fast Intentions has just recently began shipping their much anticipated twin turbo kit and we were the lucky ones to first install it.

The kit is offered in different options dependent mainly on turbo size selection.  All turbos used in the kit feature Tial .86 turbine housings made from SS cast for improved flow and heat enthalpy.  This allows faster spool from the turbine.  The base kit starts off with a pair of GT2860RS turbos.  Followed by the Garrett GTX compressor wheel upgrades.  Finally the Tial Alpha series (HTA) turbo as the creme de le creme for those looking past stock shortblock power handling capabilities.

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The NISMO as it sat before its twinturbo adventure.

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The VHR ready to leave its cozy engine bay.

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Now its time to start disassembly to make way for our twinturbo parts!

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With the intake manifold removed the stock fuel injectors and rails come out.  We’ll be moving more air so we’ll need larger injectors.

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Stock injector on the left and our new higher flowing 650 cc injector on the right.  Appropriate adapters for the electrical connection are provided to make it simple plug n’ play affair.

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Rails, injectors, and adapters installed.

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With the intake manifold removed for the injectors install, we also replaced the factory DENSO spark plugs in favor of HKS Racing spark plugs.

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The stock Nissan clutch (disc shown on top of pressure plate).  Since we’re going to be making more power and especially torque we removed the stock system and upgraded to the SZ Max Street Clutch & Flywheel Kit.

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The heavy factory Nissan dual mass flywheel also gets ditched.

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We took the opportunity to replace the rear engine main seal.  This would also be the time to replace the pilot bushing that is included in our clutch and flywheel kit.

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The factory cheesy Nissan slave cylinder & bearing get upgraded with our own piece also included in our kit.

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Our upgraded slave & bearing assembly that includes SS lines and easy bolt in adapter plate.

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Our piece installed, ready to go.

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Our lightweight aluminum segmented flywheel bolted down.

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The Max Street kit uses a modified organic clutch disc for smooth engagements.  Those looking to do more aggressive driving like drag launching and slipping will want to use our 6-Puck or 5-Puck options.

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Our Max pressure plate bolted down.

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The Fast Intentions casted V-band exhaust manifolds for both the turbos and wastegates.  Beautiful merge of all 3 cylinders as one can see.

turbos

The two stars of the show, Garrett GT2860RS turbos.  Measuring 60mm on the exducer portion of the compressor wheel.  The kits also ship with the oil drain fittings installed for less guessing.  The fittings use an o-ring for sealing against the center section drain.  Notice the elegant taper used on the Tial turbine housing.  All this helps power and spool.

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A good view of the Tial wastegate(s) used on the kit.

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Passenger side of the kit installed.

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Driver side of the kit installed.

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Ready to go back to its engine bay.

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The kit makes use of the Greddy oil pan with the turbo oil drain fittings also already installed when one receives it.  Also pictured is the engine oil filter relocation which is also part of the kit.

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A must for any Z34 is removing the terrible squishy liquid filled differential bushings.  Only one horizontal mount is used on the Z33s and Z34s which also makes things worse for movement and wheel hop.

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Whiteline bushing in place ready to get pressed in further into the subframe.

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Intercooler looking mighty mean.  The Tial BOVs are also easily mounted to the end tanks of the intercooler.  This intercooler is actually separated in the middle and makes use of a divider plate to make sure all of the core(s) is used.  Behind the intercooler is the Fast Intentions 34 Row Setrab oil cooler.

intercooler_sideview

Here’s another view of the intercooler (not an actual picture of Bob’s NISMO).  The intercooler brackets included in the kit are also already painted!  Love that.  Ready to bolt in and go, less install time, and more GO time!

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A beautiful twinturbo kit for a beautiful Z.

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Last but not least our final power and torque numbers for 91 octane.  We installed a Blitz sbc-iD Spec-R boost controller that works also as a boost gauge.  An Innovate MTX Digital Wideband was also installed to monitor AFRs.

Mark’s 2012 GTR

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We previously installed down pipes on Mark’s GTR some time ago (click me to see the old blog post).  Mark came back in for a few tweaks.  One was to make the move to EcuTek from Cobb.  Since Mark is an avid drag racer, EcuTek gives him the ability to make on the fly changes to his launching RPMs.  If the track isn’t prepped as well as he’d like he can lower the launch control RPM for better 60 foots along with raising the RPM should the track and tires hold it.  Changes to launch control boost pressures can also be made.  We also made the move to allow his GTR to run on ethanol.

injectorinstall

The first order of business was upgrading the fuel injectors to allow more fuel for ethanol use.  We went with 1150cc fuel injectors and necessary adapter kit for a simple plug n’ play solution.  Injectors are installed in the above picture.

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Factory fuel injector on the left and our 1150cc injector on the right.

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We upgraded the secondary fuel pump with a Walbro “485” fuel pump.  We noticed that the pump socks off the 2012s are much smaller than the ones off of the 2014s.  Small changes Nissan makes throughout the years.

airbox

The factory air boxes (one pictured above) was removed and replaced with open air element filters and larger 3″ piping.  This change allows us to continue running MAF sensors since now the threshold for maxing out the sensors has been moved up.  Tuned on 91 octane will get you extremely close to maxing out the factory MAF sensors.  Thankfully with EcuTek we can ditch the MAF sensors and convert to speed density.  Perfect for someone not wanting to upgrade to an aftermarket intake(s) or for those with larger upgraded turbos.

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Our new 3″ intakes installed.  You can see the air filters get moved up to the bumper area keeping them away from the engine bay and its heat. The cover for the top of the bumper is removed to show where the filters now sit.  The intake piping is hard to notice since it is powdercoated wrinkle black and we’ve acquired more “open” space with the removal of the air boxes.

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Final shot of the install.

91tune

After all the modifications were completed we tuned for 91 octane.  Making peak power on 14 psi.  Boost drops off at the top due to turbo sizing.  There are a few things that can be done to help make the stock turbos hold more but in doing so back pressure rises quickly between the engine and turbines.

John’s 2009 GTR

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John’s GTR has downpipes, y-pipe, and the stock mufflers removed on the factory piping.  It also uses K&N drop-in air filters in the factory air box.

We went to work tuning the GTR with EcuTek for excellent gains in power, safety, and drivability.

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527 whp and 518 torque on 91 octane.  John now has the ability to control his boost pressure levels, valet mode, and adjust his launch control RPM all on the fly!

Masis’s Built NA 350Z

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Masis dropped by with his 2006 350Z for some tuning on 91 octane.  It uses a naturally aspirated built IPP long block running 11:1 Wiseco pistons and Eagle rods.  It also uses JWT S7 camshaft featuring 262 degrees of duration and 11.43mm of lift.  For the exhaust it uses aftermarket headers, test pipes, and NISMO catback.  On the intake side it uses a Kinetix intake manifold and Injen cold air intake.tune290 whp and 260 torque.  With higher octane fuel or ethanol this Z can make well over 300 whp.