nismopick

He's talking about the early L28 dished pistons used for emissions purposes. They should be the same, tho the turbo pistons have P90 stamped in the top (kinda hard to see in this pic, but the stamp is on the right side of each piston):

Black... You NEED to use that rack for your swap. The box style steering will be in the way of the turbo. Here's a couple pics of mine.

The stock turbo pump will still supply fine @ 12psi. A rising rate fuel pressure reg will fix that lean condition & will still be useful for later fuel system upgrades.

400cc+ is way too big for the stock ecu. If you do the math, you'd have to run about 13psi fuel pressure to equal the stock injectors at idle. It's A LOT easier to get a rising rate FPR or get Ford 370cc injectors & adjust the AFM.

Just get a rising rate FPR, or slightly larger injectors. Ford 370cc injectors work the magic.

260hp? I thought the RB25 made more than that stock...

I'm really trying to hold back flame-age on you bro... why the hell would you try to put a 6speed on an L28? Do you know that the gear ratios are VERY different on 6speeds? Do you plan on driving @ 120+mph all the time? How often will you need to cruise in 6th gear? It's so low that you don't even need it below 80-90mph. And how you gunna mount a 6speed to the L28ET? You'd spend as much for a custom hookup/bell housing, as the tranny itself.... all that so you can throw it into 6th once a year?

nismo.... is there a reason you don't find a timing light & use it? You can rent one (and get your $ back upon return) at AutoZone... Checker.... etc....

I love it... someone that understands.

L28 or L28ET? one is naturally asp... the other is turbocharged. The L28 stock puts about 135-150 (depending on the year, and trans/diff). The L28ET puts out about 170-180 (pushing stock boost). You can safely up the boost to about 9-10 psi w/o an intercooler, and 12-13 with an IC, on stock injectors. You'd be over 200whp at 12psi. Other minor mods: Better air filter, big IC, free flowing exhaust, Z31T ecu... you'd be up to say 220-230whp. These are just rough estimates at the moment.... Of a 240Z.... very little. Just need somewhere to mount the ecu.

You can use the 88-89 non-turbo ecu, or an 84-87 turbo ecu.... but, as the first few posts of this thread state, the 88-89 uses a different O2 sensor than the 280ZXT & 84-87 Z31's, and some wires are different. I assume it's not discussed in this thread, because the focus of this thread is the 1984 Z31T ecu swap. I imagine the car either wouldn't start, or would idle very poorly if you still use the 81 CAS. This JWT page explains a lot: http://www.jimwolftechnology.com/wolfpdf/280%20Z31%20450HP%20UPGRADE.PDF I don't have the turbo & na ecu part#s handy, but a quick search on google might help. Or check out AZ-ZBUM's web page: http://www.az-zbum.com/faqs.shtml#basic

If you can use a ratchet & soldering gun, I think you can do it.

LoL... exacto. But what do we know anyway?

um... page 1 of this thread answers that: Dude... I suggest RE-READING the first few posts of this thread.... YES, YOU USE THE Z31 TURBO ecu.

Per Haynes Manual.... R200 diff cover bolts = 15 ft/lbs.

I really doubt there is a pdf of Maximum Boost.... It's not a short book. Blow through is better than draw through. And it's just SO MUCH EASIER to find a complete L28ET, than to search out all the needed L28ET parts one by one. Save yourself from the headaches of "one by one" part buying, and the endless "trying to tune" carbs.

http://www.quaifeamerica.com/

You get what you pay for when it comes to turbo parts.... why do you think it's cheap??? And I imagine you've heard this before, but if not... it's not as easy as "slap on a turbo & go." Do you have a turbo exhaust manifold? Wastegate? Oil feed & return lines? Turbo oil pan w/ turbo oil return? And not undermining your ability to engineer, but if you're asking which turbo will work, do you also understand the risks of turbocharging a stocker non-turbo engine? Do you understand that when you increase boost pressure, you increase compression ratio? Example... you run 10:1 CR na engine, and add 8psi boost, you'd be somewhere around 14:1 or 15:1 CR... will a stock engine handle that? You will certainly shorten the engine life.... Don't forget to tune your carbs for more fuel.... if you add more air, you must add more fuel.... Have you thought about all these things?

HaHa... some people!

Hey Some-guy... you do any research first? I bought a Craftsman 2 stage, 60 gal, 220V from sears a year ago for $399 on sale..... shopping around does a wallet good.

yep... thas why a lot of people use the N42 manifold.

My opinion... who ever did that needs to be slapped.

question answered ( http://zdriver.com/forums/showthread.php?t=19673 )

He prolly didn't ask... nor do they know...

I had a local turbo shop rebuild my turbo to be a T3/T4 hybrid... $150 labor, $200 in parts.