Southie Project Part 2

[Southie]

Well,

Time to start another build thread i guess. After 4 months of downtime rebuilding my damn motor....then only driving it 10k....It blew again. This time spinning the Number 1 rod bearing.

So out the motor came, and off to the machine shop for the bad news.

Verdict:

-All six pistons are fried, Top ring groove had .090 clearance. Spec is max .073

- Crankshaft was quite bad on all bearing surfaces, requires complete grind.

- Block was over heating on the exhaust side of the cylinders, meaning if you look at the top of the block around the cylinders, its discoloured on the exhaust side.

So, Went to nissan on friday and ordered 1.0 Oversize pistons, rings, and .50 undersize rod and main bearings.

Block is being decked .015, pistons oversized, and crankshaft being made good again.

Stay Tuned for hopfully big changes by summer time..........

Heres the car the week i purchased it 2 years ago, BONE STOCK



And here it is as it sits, minus the motor lol.





Stinky Tune Spec 4 ECU
RB25 Turbo
Greddy Profec B Boost controller
NGK Iridium Plugs
Autobahn FMIC
Autobahn Oil Cooler/ Filter relocate
Autobahn Aluminum radiator
Autobahn Blue Silicon rad hoses
AMsoil Intake
Textured Black powder coated Valve Covers
AIMCO Clutch rated at 40% better grab over stock
HKS Downpipe
testpipe
HKS Cat back exhaust, cannon tip lol


Interior:

IEquuis Oil Preassure and Boost gauge in a dual gauge A-pillar pod
Blitz Type S Boost Controller
Satallite radio
7'' indash DVD player, Folds away nicely when turned off..
4''X6" Energy front speakers
6.5" Energy rear speakers
10" Infinity Kappa sub
cant remember how many watt amp.

Exterior:

Fiberglass Origin body Kit
5Zigen FN01r-c Rims 17"X9.5"
235/40/R17 falken 452
New front and rear brake pads and rotors february 08' roughly 12k on brakes
KYB non-adjustable coilovers, Sits nice and low
new Windshield just replaced.

[CloudyGTR]

Yeah Jordan! look forward to seeing it finished....again..lol.
good luck this time little buddy

[GTR--J]

What are your plans for the turbo and ecu? Keeping the same or something else:drive:

[Skym]

I like.

[Southie]

For now im keeping the rb25 Turbo, but!!!. After the break in is done i will be installing my gtr injectors, z32 MAF, and buying a greddy Emanage Ultimate...

So come winter time i will be set for a turbo upgrade....

[anthony]

i hope you have better luck this time on the build.
did you ever find out the cause for the spun bearing
the pistons and the overheating on the exh side

[Southie]

umm well the machinist, said that the heating on the block was farily common on turbo applications, and the bearing...well that was prolly just my own fault for not checking proper clearances when i rebuilt the first time.

The first rebuild was sort of a slap together rush job...this time around im not screwing around at all. heck, im even replacing the oil pickup, becuase its full of bearing material...i could try to clean it, but if i miss even 1 little chunk, it could break through, and run threw the system and reap havoc again!

[Southie]

So another part showed up....Shiny Dump Pipe.

and got the good word from canada post, my yellow jackets are in.

[Skym]

I like, shiny.

But be careful with those types of split dumppipes, as some have reported boost spikes. One person switched to the 1 pipe type of dumppipe and he said it helped to remove boost spike problem.

[Southie]

thanks for the info, i will definatly keep and eye on that!!