Kassem L hails from San Francisco and he brought his 370z to Z Car Garage because he was having warranty issues with the dealership. After some some discussion and guidance we installed a new clutch and transmission. For piece of mind the troublesome internal slave cylinder was switched to an external unit using the CMAK upgrade from ZSpeed. We went through the car and fixed all the little things missed by the dealership when they did a warrantied replacement engine (replaced b/c of oil-burning issue). Minor items like re-learning the windows and parking adjustment were comped.
Kassem visited ZCG again for suspension upgrades. We installed HKS 4GT coil-overs, SPC F/R control arms, and a Hotchkis sway bar set:
SPC front/rear control arms. After suspension installation we aligned the car and changed the oil:
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Kassem was going for a very JDM feel/build and chose his modifications accordingly. We installed an HKS intake system and the Power House Amuse R1 Titan Extra STTI full titanium exhaust system:
Before and after:
More exhaust details:
HKS Racing Suction twin intakes replace OEM units:
After the coil- over suspension was installed Kassem came back in to have the car lowered just a bit more. We handled this for him as well and the Z looks fantastic sitting over pretty Volk Racing G25 wheels and Bridgestone RE-11 tires:
Each year the Historic Sportscar Racing association (HSR) organizes the largest and oldest event for Historic race cars on the East Coast. It’s called the Classic Motorsports Mitty and it took place at Road Atlanta, GA from April 27-29. We attended The Mitty to provide race support for Randy Jaffe’s #46 BRE Datsun 240z (driven by our hero John Morton) and Alex McDowell’s Datsun Bluebird Coupe and Hakosuka Skyline.
Nissan was the featured marque for the first time with John Morton serving as Grand Marshall so naturally every Datsun-fan was drawn to The Mitty. I took a Thursday night red-eye flight from San Jose with part of the ZCG crew and when we arrived at Road Atlanta our paddock was an absolute feast for the senses. Nestled primely across from the front-straight footbridge, we had an impressive display of West-Coast racers, from L to R: The BRE Datsun 240z, BRE 370z, Comedian Adam Carolla’s #44 Frank Monise Datsun 2000 Roadster and Bob Sharp 610, Alex’s Hakosuka Skyline and Bluebird Coupe, the Friselle GTU 240z, Dave Stone’s Frellsen B-sedan 510, Jim Froula’s (Racecraft) Datsun 260z, our friend Glenn Chiou’s VIPS/Loren St. Lawrence 240z and Bob Clucas’ IMSA GTU 240Z.
Take a Lap With John Morton
At 76 years of age John Morton is still formidable behind the wheel. Here he is piloting the #46 BRE 240z that we prepared around Road Atlanta; the very same track where he won the 1970 and 1971 National C-Production Championships!
Well, That’s Racing
The sweet smell of race fuel, frantic adjustments, checklists, and engines blaring to warm-up for the next session all reminded us how much we love racing! From the on-board video above, you can see the BRE 240z performed well with John Morton at the wheel but what it does not show viewers is the not-so-glamourous side of racing: part failures. The Z ran great in Thursday’s practice but when we arrived at the track Friday morning, Rob told us the engine failed during the first session. He needed all hands on deck. What followed absolutely humbled me; the ZCG crew went to work in a supreme effort to get the #46 BRE 240z alive again for Saturday/Sunday’s races.
John Morton Must Race
To get a first-hand perspective of the Z’s revival I asked ZCG Lead Technician, Josh Corwin, to give us the play-by-play of the heart transplant. Please read on to see a video chronicling the events!
1) How, when and why did the engine fail? It is still too early to know exactly what went wrong with the engine. A complete teardown will be performed to isolate the root cause. I can tell you that during Friday practice, John Morton was accelerating up Road Atlanta’s back straight coming up the hill before turn 10, in top gear at wide open throttle well over 100mph. That is when a major engine component let go resulting in multiple holes being punched through the engine block, affectively turning the engine into a boat anchor.
2) What was the plan to get John Morton back on the track? Get an engine, put it in the car, put John Morton in the car, and put the car on track. Simple enough, except finding an engine that could perform was the challenge.
As word spread through the paddock that John Morton needed an engine, the Datsun Community banded together, and offers of engines came swarming in. Multiple race engines and high performance street engines were all up for grabs. All were seriously built engines, but none of them felt right.
Rob’s ultimate plan to excavate a couple E.B. Parkinson motors, like dinosaur fossils, was crazy to say the least. But, going with his gut, the resurrection of a true vintage race engine was put in motion. Half of the crew went with Randy to his storage to look for a replacement motor, while other half, including myself, received the green light from Rob to began the task of removing the expired power plant in anticipation of the Datsun Relics arrival.
3) Technically, what was involved with swapping parts and prepping the 40-yr old parkinson motor?
The old engine came out quickly, as many hands made light work. It was then tucked away into the back of the trailer, to be disassembled at a later date, as we worked on getting the car ready for its new engine. Prepping the vehicle was pretty simple, but there were necessary steps and precautions that need to happen to make this a successful transplant. We only had one shot at this, so nothing was left to chance.
Below, (L): Gary Brizendine and BRE Engine Chief John Caldwell lend a hand and knowledge: Caldwell is confirming the jetting on the 50mm Mikuni carbs. (R) The original exhaust system from the 1970s is removed from #46. Morton had already blown apart the exhaust tips on the first session!
With any catastrophic engine failure, one of the concerns is metal bits getting stuck in the oil cooler and lines. So, first thing is to remove the oil cooler and hoses and flush them out. Any leftover engine material in the oiling system can destroy a fresh engine in minutes. Luckily, Road Atlanta’s used oil disposal shed also had 2 solvent tanks, which we used to back flush the cooler and clean the lines of any possible debris. While all the reusable pieces were getting cleaned internally, we moved on to cleaning the mess of shrapnel and engine oil that coated the engine bay. Just as we finished, the oil cooler system came back fresh and clean, and shortly after engines arrived. We could finally switch gears to the reassembly of the BRE 240Z.
The crew brought back two “long block” engines, meaning the cylinder head and engine block had already been assembled. At first look they were identical in every way and definitely appeared to have been sitting for 40 years. Looking closer, we found one of the engines did not have the timing chain installed which led us to use the one that was “more complete.” We put a wrench on the crank bolt and it rotated 720 degrees, smooth as butter. The next task was to take all the undesirable accessories from the old engine. The 40 year old water pump, alternator, flywheel, crank pulley, thermostat housing, oil filter adaptor, and valve cover were all tossed. We then tackled a quick clean up, removing years of dirt and grim that had built up while sitting.
Jose B is from Antioch, CA and knows our customer Richard M (ZCG-modified 370z). After getting into an accident with his 370z, Jose went to several shops to identify a peculiar squeak coming from the front end. Unfortunately the squeak was not resolved so Jose visited ZCG to sort it out. We spent time going over the suspension and other areas to identify the source of the squeak and found that one of the motor mounts was completely broken:
In addition to replacing the driver’s side motor mount, Jose wanted us to install some parts he had purchased online. Here is a full Motordyne exhaust system including their Long Tube XYZ stepped headers with Helmholtz module:
A few shots of the exhaust installation:
We also installed Stillen Gen 3 intakes:
With the motor mount sorted and new parts installed Jose wanted to have the Z UPREV tuned. This was a wise decision, especially with the new bolt-ons. Historically we have made good power with simple bolt-ons to the VQ37 and we were surprised by Jose’s Z34. The Z baselined at 295hp/245tq to the wheels and with UPREV tuning put down 344hp/266tq to the wheels!
Peak gains of almost 50hp and 21tq at the wheels is impressive! Enjoy The Ride Jose!
This is the moment we have all been waiting for as Nissan/Datsun enthusiasts! For the first time ever, Nissan will be the featured marque at the Rolex Monterey Motorsports Reunion August 23-26. Now in its 45th year and commonly known as the Monterey Historics, the Reunion is a highlight of the famous Pebble Beach “car week” in August. This event features the best of every decade of racing history, all condensed into four days of qualifying and competition at Mazda Laguna Seca Raceway.
Even if you are a seasoned race car fan or hardcore Datsun nut this is the event you don’t want to miss. To make it even sweeter the good folks at ZONC are proudly sponsoring the Nissan Car Corral AND a Parade Lap around the world famous Laguna Seca Raceway!
Datsun & Nissan Exclusive Car Corral Parking
At past RMMR events our Nissan car corral has been mixed with the other marques. Not this year. We have the incredible spotlight and desirable PAVED parking between Turn 2 and 5. It will be our time to shine, let’s make a strong showing by bringing our beloved cars out! Have a Nissan Skyline GT-R from the 90’s? Bring it. Got a Datsun 510 Wagon? Bring it. Nismo R35 GT-R? We want that too. Remember, this is THE best place to park your car, enjoy the races AND proudly represent!
To participate in the Car Corral and Parade Lap you must buy tickets through ZONC, details can be found by clicking HERE. Take advantage of discounted general admission through ZONC and let’s make this a superb showing of our Nissans and Datsuns! Please spread the word to fellow owners 🙂
In case you missed it, here is our coverage of last year’s RMMR: RMMR 2017
We plan on bringing the #49 Joel Anderson IMSA 240zto participate in the race! We are really excited for our fellow racers this is going to be an EPIC event. Enjoy a few photos from past RMMR events. LONG LIVE THE Z!
We are fortunate to work with fantastic clients and as a result they are the best form of advertising. Carlos H and Scott C met at the same gym. We supercharged Scott C’s G35 several years ago, and he was kind enough to refer ZCG to Carlos for work on his 2016 Nismo 370Z. When we first met Carlos he came in for some bolt-ons: Stillen G3 intakes, Fast Intentions cat-back exhaust, and a UPREV flash:
FI cat-back exhaust:
We also installed FI long tube headers:
On the dyno immediate gains of +12hp/16tq to the wheels were seen with the intake and exhaust:
The best way to maximize gains from bolt-ons is perform an ECU tune. UPREV tuning yielded further gains for a total of 323hp/266tq to the wheels:
Carlos came back for suspension upgrades and we all know Rob loves the KW V3 coilovers:
Front/Rear:
Next, we installed our favorite sway bars from Hotchkis:
Front/Rear OEM vs Hotchkis:
Carlos is Enjoying The Ride…and we have to say the 2015+ Nismo Z34s look so good!
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