Drax240z

Nice! That's looking pretty darn good now.

That's what I would do if I had the money to spend on wheels.

alpha-n mode is only necessary on engines with unstable vacuum signals, such as cars with ITB's or very large cams. Otherwise I'd run a MAP based system.

Hey Cary, was that Claude Roulle's seminar? What did you think of it? I kept meaning to do it when I was in FSAE but couldn't come up with the coin. Still pondering doing it...

Be warned that an 83 zx turbo is a 2.8L inline 6, and a 84 zx turbo is a 3.0L V6 and not at all a bolt in into the earlier cars...

In the end there is only one way to know for sure. Stick it on a dyno, do a baseline, log AFR's... For $75 or so you'll know where you stand and take the guesswork out of it.

Useless without pics!!!!!! Glad you got it sorted though.

I thnk you are missing the point here. Turbo injectors are larger than NA injectors, so they flow more fuel for a given pulsewidth. With the NA ECU and the turbo injectors you are going to have too much fuel below atmospheric pressure, (the turbo ECU will have a lower pulsewidth here) and you'll gradually lean out as you build boost, as the NA ECU is going to keep a steady pulsewidth independant of boost level (ie: afm door fully open) but with 44% (or whatever the increase in fueling is from NA to Turbo injectors... 180cc/min -> 260cc/min IIRC) more fuel flowing than it would have with the NA injectors. All things equal, you would achieve the same AFR on your setup as a stock NA engine has at 6.5psi boost, when using turbo injectors and a NA ECU. The AFM being smaller is going to decrease the amount of air flowing for a given fuel setting, therefore leading to a richer mixture throughout the range as well... something that bodes well for a turbo setup, as the stock AFM on an NA 280zx seems to dyno in the 12.5-13.0 range at full throttle in my experience. In summary, I would think an NA ECU, NA AFM, NA FPR and turbo injectors would put you in the right ballpark for fueling below 7psi, though you are going to be too rich at manifold pressures less than atmospheric.

Yokohama Advan A032's. Great wet grip, DOT-legal R compound tire, doesn't heat cycle out quickly, which makes it decent for a weekend car. No street tire will touch an R-compound for autocross grip. Cheap too. You should be able to get 5,000miles out of a set depending how often you race and in what conditions. They are available in a hard and a soft compound. Hard will obviously last slightly longer. (maybe 7,000 miles) The price is what makes these stand out. As was said before, they are noisy and lots of other R-compound tires grip better. Lifespan will be better on the A032's than most other R-compounds though.

Amsoil... in everything.

Start with the basics... it's not on your list so is there a chance your wheel is out of round or unbalanced? Lug nuts tight? (don't laugh! It's not uncommon) Stub axle spline play is another possibility that I have seen.

The stock unit is a 1:1 ratio.

Z headlights suck to change.

Damn, I like that!

Hrm, the only one of those that stood out to me was the 3 light setup on the black convertible. Any more pics of those to share? On an aside, has anyone seen R34 skyline tails on a S30? To my eye it seems that those could work out not too bad.

Hey Dave, good to see you here. We met a few times at the Vancouver show. You should post up some picks of your 510 somewhere on the site for others to see... show them that there is more than one way to make a 510 Z powered.

Can you give us some more idea of the driving characteristics of the turbo compared to the stock one? Does power come on fairly linearly, or is it a big hit at 2900rpm? How is the performance above 5000rpm? Throttle response comparison? Do you know what the AR of the exhaust housing is? Cool find for sure... and inexpensive. My favorite kind of mod.

Go 13" on the steering wheel... a smaller wheel means less total hand movement when you are turning the car, and as long as the effort isn't too high, it should lead to "faster hands"... I use a 13" on my Z without power steering and I don't find it to be a problem at all, should just totally fine on a ZX with power steering.

Windshield is not the same, though if you compare without having them side to side you'd never know it until you tried to install it... (been down that road) I might have had some kind of aftermarket oddball, but the coupe window I tried was about 1/2" taller and wider than the 2+2 one I tried...

16" are still my favorite look by far... just a bit hard to come by.

New ones, black center, in 17's... no contest when comparing with the old ones. Z's need some lip I think...

That was pretty damn sweet actually!

There are cases of much more power than that through a R180LSD as well.. I think it was SavageZ that was running a VG30ET with (I think) ~300ft-lbs for many hill climbs and racing events without any issues. It seems to me he had been running that setup for 5+ years without issue. Search it out, there was a post not so long ago about this topic that had his results in it.