Today I put the Race Wagon on the dyno. I’ve done this with all my racecars, and can’t understand why so many people don’t take advantage of this service. Why spend thousands building a high performance motor and not spend the last couple hundred bucks tuning it. I worked with Rob from Z Car Garage, he has a nice, clean shop in San Jose that services the South Bay Area Z community. We did nine runs over two hours, trying different jet sizes on my Mikuni carbs and different ignition timing settings. We gained 14 hp and 18 lbs of torque, well worth the time and money. Final figures at the rear wheel: 164 hp at 6000 rpm and 156 lbs at 4700 rpm. Using the recognized conversion factor for parasitic loss on a rear wheel drive car with manual transmission of 15-20%, that makes it almost 190 hp and 180 lbs at the flywheel. Not bad for a race prepped, 10:1 compression ratio L20b motor…
[…] It’s red. It’s fast. It’s a Datsun 510 wagon! Troy is the owner of this unique vintage race car, I mean racing wagon:) Rob at ZCG helped dyno tune this beast on the dyno last year with great results. You catch the wagon’s full build-up on Troy’s site, RacingOnTheCheap. Here is Tim A with a full race report from the VARA High Desert Challenge last month: […]