WanganDevilZ

So I'm more than likely going to end up getting the Stage I Turbo Camshaft from MSA, I also probably figured that since my head/block is getting resurfaced/shaved, I might as well keep to dished pistons, and I found some ITM's in a .50 overbore.

I'm also grabbing the Supra injectors from my friends MKIII that he totaled the other week:

Evantually I will be getting a 240sx TB, doing the proper boring of intake for that, Z31T with Nistune

I've been doing searching, and found similar items, but never really in this combination. Just wondering what everyone else thinks, I hate to create another POS thread, just looking for input

NismoPick

Supra injectors w/ Nistune are winners... I wouldn't waste money on an MSA turbo cam though. The stock L28ET cam is far from limiting.

WanganDevilZ

Among all the posts I skimmed through at work, you were looking for what people were looking at as far as power is concerned, I'm *wanting* about 250hp, possibly 300 someday

But I'll deal with the power gains later, I just want to get it running for now really

NismoPick

I have no idea what you are talking about...

My setup is right at 250whp (~280hp flywheel) at 12psi boost...
-1mm overbore
-.5mm machined head
-T3/T4 hybrid turbo
-Z31T ecu
-60mm TB (matched intake)
-Stock turbo injectors
-Intercooler
and all the other goodies to keep it together.

WanganDevilZ

Sounds alot like what I've already got in mind, I've got a bore on the way, was looking at a bigger turbo and the Z31 with Nistune, TB, I can use the stock injectors, and keep the Supra injectors for a later date, and I've got an intercooler somewhere..

hoov100

That's alot work for a measly 250WHP.

NismoPick

A 100hp increase over stock by doing some machine work, upgrading the ecu, and some other basic things, isn't "measly". Good try tho... ya made me laugh.

FricFrac

It's because you aren't promoting the vastly superior VG30E or VG30ET....

NismoPick

Not to rehash the past, but we've discussed the "L28ET vs VG30ET" before:

https://www.zdriver.com/forums/280zx-performance-technical-79/l-motor-build-questions-30274/

I don't get why people keep talking about the VG30ET over the L28ET... it's a pointless swap into an S30 / S130 unless you are doing it just to say you did it.

Blah blah blah... I won't argue a brick wall.

FricFrac

Lol - I was just giving Hoov100 the gears before he went off on his VG tyrate...

WanganDevilZ

Having a larger bore requires a head gasket to match the new size of the cylinders, MSA doesn't sell overbore headgaskets, neither does the Surfside japanese place we have here in town

Where get 1 OB HGs?

NismoPick

The MSA MLS head gaskets are sized for over bore.

WanganDevilZ

Is to get this running by March.

With your knowledge and experience, and my hands and tools, we can do it.

NismoPick

I didn't have time to post this yesterday:

http://www.thezstore.com/page/TZS/PROD/10-2454

http://www.thezstore.com/page/TZS/PROD/PEM09/10-2455

And I mod'd mine (drilled extra holes) due to this:

FricFrac

Go with the "A" grind NA cam - it's good to about 400HP on a turbo...

I'd double check but I wouldn't be surprised if the stock head gasket will work with a .5mm overbore....

WanganDevilZ

So basically I'll be fine if I lay my turbo HG on top, stencil the correct holes, and drill?

Don't exactly see what you're on about, wouldn't the turbo cam be a better application?

FricFrac

Dude time to research the "A" grind from the NA (P79, etc). It's the hot ticket cam for a stock to moderate modified turbo car.

Olden day turbo cam theory was lots of overlap because turbos were not very efficient back in the day. Add an intercooler and you effectively increase efficiency (sorta in a thermal emulation kinda weird way). Regardless bringing the charge temperature down lets you run a more agressive cam without detonation - ala "A" grind.

WanganDevilZ

I had intended on getting an intercooler, I had also planned on doing water/meth once I got a bigger turbo, but thats about a year and a half down the road.

hoov100

If your getting a cam, you might as well get a custom grind if you plan on going MS or nistune.

No need for water/meth unless you plan on running lean and on the gnats *** of detonation. I think the main focus of any turbo build should be on airflow, Like porting the **** out of the head and manifolds and strait intake/exhaust pipe routing.

WanganDevilZ

New .20 over pistons on the way.

Now, How do I remove the wrist pins from the old piston/rods so I can reuse the rods?

NismoPick

Hopefully you don't plan on doing this w/o the FSM...

FSM section EM-16: PISTON PIN IS PRESSED INTO CONNECTING ROD (0.6 - 1.7 US ton).

FricFrac

I think I'll go with the opinion of some of the top L series engine builders in the country on their opinion on the "A" grind cam. But of course to each their own....

WanganDevilZ

Will I be able to reuse the wrist pin? Or do I need to get new ones, if so, where?

NismoPick

If you press them out correctly, you can reuse them. Need new ones? Nissan or your local machine shop.

WanganDevilZ

Alright, been on a little hiatus for a while, but I've run into a problem, I have multiple Con-Rods, but none of the numbers match, and some of them have a very small lip on the groove, which means they'll be off on the crank.

However, I do have somewhat of a set, I have six, but I don't have 1-6, I have like, two number 3 rods, or something like that (In the sense that the numbers match on the stamp)

Actually, I just went out into the garage, and they all have somewhat of a small lip on them that I can catch my finger on, some are worse than the others, but I probably have about two that are perfectly fine.

Thoughts? Ideas? The machine shop said they could bore them out, but that the engine would be out of balance etc. etc.