After a rather long hiatus, the build returns with updates! As some of you may know, I decided to go with the professionals with this build.
Looking at some local shops around my area, most notably Rebello Racing, and also some other shops across the country, I've decided to send my dear L28 out to Eiji Hosomi at Datsun Spirit Inc. (https://datsunspirit.com/)
There are three main goals that I wanted my motor to achieve.
1. Speed > Power. I want my motor to run like a hot knife through butter. It needs to be quick and very responsive. Power is nice, but a quick revving motor is what I seek.
2. Character. My beloved Z will eventually be my weekend car. I don't want the motor inside of it to just be a fast engine. It needs personality and character. Something that sets it apart from, let's say, a Honda Civic. This is why I went for triple Weber 45's, a flywheel that weights less than 10lbs, and my desired cam (more info on those later.) There's a certain character I want this motor to display, and I believe this build fits the bill just right.
3. Reliability. It might seem like an oxymoron, having a fast and reliable sports car motor, but I've seen time and time again how these motors, when built by true artists of their trade, can withstand almost anything you throw at them. My new motor will be running on pump gas, will idle smoothly and will barely break a sweat with the granny-like driving I put my Z through.
Pistons: 29mm Kameari (280g)
Rods: 139.5mm Kameari (~575g)
Crankshaft: Polished, Stock L28
Camshaft: .290 Duration / .490 Lift
Valves: New valves (stock size) Upgraded springs and retainers
CR: ~10.5 to 11:1
Now, time for some photographs!
Here's an album with all the photos I've gotten from Eiji thus far. I'll update it as the build continues:
1. I would like to hit 200HP at the crank (Although not necessary)
2. I want the motor to be naturally aspirated.
3. I love the look and sound of triple Weber carbs.
4. I don't think I need a stroker motor to produce a descent amount of power, so unless it's necessary, I'd rather not go there.
Things that I am considering (Please correct me if I'm wrong!)
1. Balancing the Crank
2. Lighter, flat-top pistons (I would like to keep the stock 86mm size)
3. Stock valves look good enough! Probably just stay with those.
4. I've read a few posts where people mentioned using L24 rods. Why is that? Weight?
5. A Mild performance Cam with upgraded springs.
Edited by TheCrazySwede, 15 February 2015 - 10:05 AM.