nienberg.11

Lol Skrich, i might have seen you around mccomb too. The guy with the trenchcoat who goes around spraying the destitute and small children with hot sauce from his windsheild washers right? That'll take em down a peg lol. Anyways, prox, I plan on running 10-12 psi of boost, intercooled, with the zxt injectors. I was under the impression that the stock '77 engine had n/a dished pistons, which are only different from the turbo pistons because they have weaker ring lands. I was also under the impression that this gave me a compression ratio 0f 7.5, which is favorable for turbo applications. I think i'm going to run an fmu, and either the zxt fuel pump or some aftermarket fuel pump. In any case, I'm not going to run 3 separate pumps. I'm on a budget for one, and that just seems impractical. Keep me posted on how things go with your project.

Thanks for all the info Prox, I've read some of your posts before, and it looks like you and I are in a pretty small crowd of people converting the n/a l28's to turbo. Also, I just looked at your cardomain page, and we must have a lot of the same ideas...I'm planning on replacing my p.o.s clock with my boost guage too, just put it in the casing that holds clock. It's for the best since I've gone through 3 clocks in a year for that car. Anyways, I'm going to keep my n/a oil pan, and tap some threads into it for a threaded bung that I got along with my 280zxt parts. The guy who sold me the zxt parts made it up, it's basically a piece of threaded pipe with a nut welded onto one end. I read the your thread, and it did make things clearer, but I was wondering, do you have any idea if the zxt fuel pump would be sufficient if i was to run it with a rrfpr and my zxt injectors?

I'm planning on doing a bolt-on turbo conversion to the stock engine in my '77 280z. I have the turbo, downpipe, manifold, and injectors from an '83 280zxt, and I mostly have this whole project figured out, with one exception. I have no idea how I should go about maintaining the correct fuel/air ratio. I have to complete the whole conversion in the week I have off for spring break, so messing with Megasquirt isn't an option. I've been told by one guy that I should just leave my stock ecu and afm intact, and simply adjust the tension inside the afm to account for the bigger injectors, and other people have told me to buy a device to change the signal coming from the afm. Another problem I'm faced with is that I don't know if the 280zxt injectors will support the kind of boost levels I'm shooting for (10-12psi) without a rising rate fuel pressure regulator or some other modification. If anyone has any insight on this situation, I'm all ears. -Mike

I have a 77 280z with the stock motor in it, with only 42,000 on it. I also have been looking into converting it to turbo because it would be a shame to stop using such a reliable low mileage engine. One thing that no one has mentioned so far on this subject is changing the stock pistons. I've heard that without dish pistons, the compression will be too high and you won't be able to run as much boost. Any thoughts?