NA 2 T ecu/ fuel questions.

3.3na2t with stock turbo/ecu/injectors should be fine, just make sure you use premium as you are higher compression, and keep the boost reasonable

Thanks for the help. All I need to do is run premium fuel? Boost should be stock since that how the turbo is setup and ecu mapping is all stock. Stock boost doesn't really go over what like 6-8 psi with stock wastegate? I'm a newb at all this

Correct, it will spool up sooner, but will still bypass at the same boost

So the turbo will automatically be setup for boost during initial acceleration due to the higher compression ratio is that a correct inference from what u said about it spooling up sooner?

Time to get this thing to the machine shop but first I need to know what I am doing. I need help with my ultimate plan.Does any one think the compression with the q45 pistons at 9.6-9.7-:1 is too much on top of FI from a turbo? I'm about to take my vg33 to the machine shop to have checked and cleaned and possibly machined if necessary and if I machine it I could easily do the bore and piston swap while in there. My only other question that popped in my head while I was reading was the fact that they said they were using the turbo oil pump cause it has 25% more capacity? I have the xterra oil pump still running on there, is that sufficient for my future turboed vg33 application or do I need to look at getting it upgraded somehow. I think it runs off the crank and I have the 3.3 crank in use but z31 crank pulley (custom milled to 32 mm) and all matching z31 ribbed belt pulleys. So if I have to swap cranks to Change oil pumps Now would be a good time to know/ and take care of it. So I don't starve my newly rebuilt t3 by Joel here in Phoenix at Arizona tractor and turbo So I definitely don't want to mess that up. Give me options and choices with reasons. Goal is mild build with all stock (Nissan anyways) parts. Stock ecu and everything for now unless everyone says it won't suffice. Then either a mild tune by Wolfe or nistune will have to be done. I got a vg30t today as a donor for turbo parts for my vg33. All will be put together running by January. Also got a r30a tranny from a z32 with a TT flywheel and a pathfinder bell housing with stock z32 starter location and 1 inch bigger pathfinder clutch for grabbing.

vh45 pistons need to be machined for the sohc valve reliefs, but if I recall, the pistons will be lower than 9.6:1… the machine shop can check that though, for turbo you won't want to go above 9:1 generally speaking, what it gives you in low end torque, it takes away doubly from your boost limit

If you stick to the xterra oil pump and crank you'll be fine, worst case is you have to modify some accessory brackets to line up things with the crank pulley, the xterra parts will be just as good though

Depending on budget/goals, you may want to skip the rebuild of the tiny turbo and upgrade to something like a gt30r (at the minimum), the vg33 will spool it very quickly, but you'll need a custom downpipe made

To use the z32 trans you'll still need the z31 flywheel, the xcessive or mazworx shifter bracket + shifter, and a custom driveshaft… and potentially more stuff, you aren't taking the easy route

There are other ways of doing it.

If using a Z31 flywheel, you need a Z31 bell housing. If using a Z32 bell housing, you need a Maxima flywheel.

Rebuilding a stock T3 costs about $100 to have AZ Turbo do it - $450 to have them rebuild and upgrade.

One of the many VG33 swaps I've done…this is a stock VG33E block, 8.9:1 CR with a stock T3 @ 10psi…intercooled, 3" turbo-back and 20°BTDC base ignition timing (stock NA). Stock turbo injectors and ECU at this point.

https://www.youtube.com/watch?v=RwB5Ev3Tj3M

It dyno'd 260whp and 368wtq on a mustang dyno.

I have a r30a Pathfinder bell housing with a z32 TT flywheel and clutch assembly and a clutch from a pathfinder ( more surface area) I have a stock t3 rebuilt by Joel at AZ tractor and turbo supply refitted with high temp seals and high temp bearings .. Not sure what other upgrades there are I might wanna do? That is VERY exciting news to hear as I am approaching putting this Frankenstein 300zx back together turboed this time

The z32tt flywheel will not bolt up to the vg33 crank. The z32tt uses an 8 bolt pattern on the flywheel. The vg30/33 uses a 6 bolt pattern.

Sry my bad. Pathfinder flywheel n TT clutch assembly.