John P is a new Z car owner and found this Z32TT in the Pacific NW. When we first met John his Z had 110k miles on the clock and he decided it was time to modify…so we gave him the works! Before the go-fast goodies were installed we addressed all of the car’s issues John discussed with us and ended up with a beautifully clean, well-rounded 300zx. Our first order of business was in engine bay, correcting the PCV system which had been bypassed/cobbled together:
Next, we found an injector problem and performed the common late-style conversion. The 1990-1994 Z32TT’s have fuel injector problems because Nissan used a wet coil design. This left the injector coil wire prone to oxidation over time and eventual shorting. The solution? Convert to later style injectors using the early fuel rail. There are several adaptor kits on the market to achieve this, making servicing/removal a breeze without the need for removing the manifolds. For John’s Z we wanted to run 740cc injectors which is only available in the new style:
More engine work including full timing belt services along with valve cover removal/refinishing:
Driveline was upgraded with a JWT HD clutch and flywheel. Keen observers may note that the exhaust has changed too!
Larger downpipes greatly improve flow over the stock manifolds. The best downpipes for your Z32TT (in our opinion) can be found at SpecialtyZ. These are 3″ units:
The Z was treated to a chassis steam clean, making a clean grime-free backdrop for the new exhaust system! The downpipes were mated to 3-2.5″ midpipes:
With wiring and general cleaning the engine bay looks much better!
A few chassis upgrades included SPL T/C rods and bushings as well fresh rear brakes:
With the mechanicals sorted John added a few lighting improvements to the interior. The dim stock displays benefitted from new LED sources. Check out the difference:
More LED upgrades throughout the cabin:
All of the work above was completed on John’s first visit. On the dyno the new exhaust clearly makes a noticeable improvement in power. We picked up 31hp/33tq to the wheels:
John visited ZCG for the second time for upgrades! We installed more parts from our friends at SpecialtyZ like their Selin dual MAF. To improve breathing we also installed larger Stillen intercoolers and charge plumbing from Ash-spec:
Finally, low-profile engine mounts from BDE offer more turbo inlet clearance:
With larger ICs, plumbing and dual MAF’s we tuned John’s Z and it now makes 372hp/360tq to the wheels:
Enjoy The Ride, John!