So as many of you heard, another one bit the dust, my engine blew sat night...i've moved on, and now i have to rebuild! Thanks gq_626, gurgen, goingdeep, for all your sympathy, support, and advice...sniff, sniff

ok..so really now, I'd like to klnow anyone's opinion on the necessity of getting a better plenum and high flow cat/test pipes during this entire ordeal... or would it matter if i added that in 3-4 montghs from now?

let me explain my current situation:
I am trying to accumulate ALL of my future engine parts that i orginally just "wanted" (now i NEED) so that when I rebuild here soon, I can save on labor costs while the motor is out of the car.

I have ordered so far:

-Arias pistons (9.0:1)
-Pauter Rods (i may have to get a different brand, these may take a while to get-only part really holding me up now, ANY SUGGESTIONS on other rods?)
-ATS twin carbon clutch / flywheel
-RC 550 injectors
-AAM fuel system
-NGK one step colder plugs
-Nissan overhaul gasket set
-Nissan oil pump
-Nissan clutch release bearing
-ARP main and head studs

Need to order:
-Used Block (more than likely, will know next week when my motor is pulled)
-wastegate springs
-Nissan main and rod bearings (the machine shop will order these)

To those of you who have already done the rebuild, any hints, parts I'm missing, advice???
THANKS EVERYONE!

 

Crower has rods out, might want to see if SGP Racing has any in stock, they list them on their site: http://store.yahoo.com/sgpracing-sto...rrodsvq35.html

 

Hey Todd, you forgot the Upper oil pan.

 

going deep:
the upper oil pan isn't for sure yet...so i'm holding off until i know next week
-T

 

Carilo rods....

 

Im not sure of the plenum... I plan on goning with APS when i do my engine build... I have the helix test pipes on right now and they seem to be worth it..

The only suggestion I can say is... well the good thing.... is that those two things can be done after your engine is ready... so no rush deciding right now.. both will obviously help you out..

Did you think of larger injectors if you plan on more boost? Or does that come with the fuel system?

 

i ordered rc 550cc injectors as well

 

Please give some replies to the following advice from a guy with supra experience, he is giving some recommendations on the 350z motor build...what do you guys think???

"350Z is a good platform, but
reliability is one main reason I went with the Supra.
Bottom end holds insane power with near factory
reliability thanks to the one extra main.


Looks to me like you basically have the bases covered
except a few things I would like to reccomend. I'll
check into these also if you think it would be a good
idea... Get the new block surfaced and the heads
milled. Both mating surfaces should be milled and
polished out to a mirror finish. Then use 1.5mm or
1.8mm metal head gaskets. At the boost levels you'll
be running... spark knock/detonation and gasket
push/leak could be a serious issue. If I remember
correctly the 350Z uses an organic factory gasket
which over time can allow some seepage of coolant..
that causes pitting in the mating surfaces and can
result in gasket blowouts at high boost during knock.
Also, you can use the factory crank but I highly
suggest using clevite bearings all around. These are
spin resistant and can handle much more abuse and
pressure than factory bearings. Could also save you
from scaring your crank over time. Also, Im not sure
what setup you have for your PCV system, however, I
use a vaccum assisted PCV with catch can on the Supra.
In most boost cases the crank case cannot natrually
vent the pressure needed by itself. Under high boost,
high load demand, the vaccum assists in sucking the
crankcase gasses out of the bottom end and routes them
back into the plenum. Using the catch can will
prevent the oily residue from building up a sludge in
your intake/intercooler system.

You might already know all that stuff and you may
already have a catch can installed and the MHG's and
all.. "

PLEASE GIVE COMMENTS ON THE ABOVE IF YOU HAVE SOME!!
-T

 

out of curiousity who's info was that?

Cometic will have a metal gasket out the first part of 05 so i would suggest that.

Greg

 

a guy that was helping me hunt down some parts that i need for my motor buildup...he owns a supra and i think is speaking mostly from his experience with that motor, i think he is mostly making speculations on the vq35 and assuming that some of the same concerns with the supra platform may carry over to the vq.

i ordered the nisdsan gasket overhaul set..that is the recommendation i was given, i was told those gaskets can handle the power, does anyone know if they are indeed an organic materal?
also, would the cometic gaskets be necessary?

thanks!,
TODD

 

Is anybody doing engine builds replacing any additional things like:

Valve Springs
Camshaft
Connecting rod bolts (do these come with forged rods?)

 

Be very careful with milling the heads and block.....this can mess up the variable timing on this engine big time. Be VERY careful not to have too much removed. 350Z has stock metal headgaskets.

 

Valve springs should be done if you are going to an oversized valve (because of the increased valve mass) and/or cams with increased lift and duration......to prevent against possible valve float and contact with the pistons. Forged rods usually come with ARP bolts. Eg. Pauter rods

 

Yes, to all of the above.

OEM Nissan head gaskets are metal

 

I would look into JWT valve springs and sgp's ti retainers for added security on the head wether or not you planning on doing anything to it. Also most machine shops will automatically resurface the block top and heads for a good fit between them. Standard practice. As for the thicker gaskets, at your compression you be able to push up to 600 on a stock nissan gasket. Done by SGP. Just my .02. You are on the right track for sure. Good luck with your build.

 

Would changing valve springs, but keeping the cam and valves stock cause any issues? Id like to have the piece of mind to rev my car higher.

 

I'm doing so I hope not. Really I don't think it will at least that is what JWT told me. I am trying to keep the car as stock running as possible, But at the same time it would really suck if I sunk a valve.

 

OK I think I will add valve springs to the list for higher revs but will skip the cams as no need for more power with TT

Oh man, this is getting expensive.

 

Sorry Todd, but here goes another part I was wandering about.

Anyone installing or thinking about the oil pump? Not so much for higher pressure but for higher flow? and/or and oil cooler kit?

 

OK, one more. I don't know if they are out there for the VQ35DE, but what about better bearings? I know SGP is coating them but still stock bearings, are there performance/racing bearings out there we could/should use?