RB26 Shortblock Build Database

[NismoS-tune]

Block: 05U supposedly early block (no serial)
Rods: Eagle
Rod Bolts: ARP 2000
Pistons: CP
Pins: CP
Guides: Tomei IN/EX
Springs: Tomei type B
Cams: Tomei type B
Cam cap bolts/studs: Tomei studs
Crank: New R34
Main Bearings: Nismo RRR
Rod Bearings: Nismo RRR
Head gasket: Tomei
Oil Pump: Tomei
Cam cover Baffles: Triple flow
Oil pan: Oversized
Other oil mods: Accusump, twin -8AN head oil drain
Oil capacity without accusump: 9L
Water Pump: N1
Timing Belt: Tomei
Cradle/Main Fasteners: ARP studs
Harmonic Balancer: ATI 1000hp


Special Build Notes:
--------------------
Machine Shop: Don't know
Shortblock Assembly By: Monkeynuts

Porting: Custom intake/exhaust, manifolds, outlets, turbos
Crank Prep: Don't know, no paperwork received
Rod Prep: Don't know, no paperwork received
Balanced Rotating Assembly?: Yes
Block Prep: 1mm overbore, Honed, don't know the rest
Torque Plate Used ?: don't know
Special Modifications to Parts: Don't know, no paperwork received

300km on new engine. HARD break-in since startup, low boost (1bar, rpm limit at 6k till break-in is done).

[GTS4-R]

RB26 Engine Shortblock Build Database:


Round 1

Block:05u
Rods: Eagle
Rod Bolts:arp2000
Pistons: JE 87mm
Pins: JE
Crank: Machined stock r32 .020 undersize also welded on Jun-style crank collar
Main Bearings:acl .020 undersize
Rod Bearings:acl .020 undersize
Oil Pump:N1
Water Pump:n1
Timing Belt: Power Enterprise
Cradle/Main Fasteners:arp
Harmonic Balancer:ati


Special Build Notes:
--------------------
Machine Shop:Manchester engine

Shortblock Assembly By: Ball Is tic Mo tor sports

Crank Prep: crank cut and collar welded on

Rod Prep:balanced

Balanced Rotating Assembly?:doubtful

Block Prep: bored 1mm over

Torque Plate Used ?: doubt it

Special Modifications to Parts: ground crank journals .020 undersize and welded on crank collar
cleaned up DET on bowls and cc'd chambers

Any other points to add: 72mm single turbo


Post Build Notes:
-----------------
Specific Part Failures: catastrophic failure at about 1000 miles..... could hear audible knock.
teardown revealed #2 rod bearing was TOASTED car only ran for about 20 seconds when knock was heard... so much heat went into the rod it was turned pitch black halfway up. #1 rod took a touch of heat. Also found evidence the crank was walking HARD the entire 1000 miles..... all the main bearings were smushed like the crank was smearing them down going back and forth. also found evidence the crank weight kissed the cradle in one spot.
2 rods no good, crank trashed, block no good..... found the main bore totally trashed from the crank walk. the center main bearing was practically non-existant.... was paper thin and the side/thrust surfaces were totally gone down to the block/cradle

Im guessing this guy gaffed hard on the crankshaft endplay/thrust bearing. and the crank walked long enough to choke out the oil to #2 rod in the crank and thats when we heard the audible rod knock.... also i think he slapped the bearings in without even checking them and "assuming the machine shop cut everything correctly"
just my thoughts

Also found one valve slightly bent and all sealing like ****

Overall Shop Experience: experience speaks for itself



ROUND 2 (in progess)

Tomei RB28SB-015 (tomei 2.8l complete shortblock)
Block:24u (new)
Rods: Tomei 119.5mm
Rod Bolts: ARP L19
Pistons: Tomei 86.5mm Titanium top ring
Pins: Tomei
Crank: Tomei Counter-8 forged stroker crank
Main Bearings: Tomei
Rod Bearings: Tomei
Oil Pump: Tomei Oversized
Water Pump:n1
Timing Belt: Power Enterprise
Cradle/Main Fasteners: Tomei
Harmonic Balancer: ATI street


Special Build Notes:
--------------------
Machine Shop: Tomei Japan

Shortblock Assembly By: Tomei Japan
(rest of assembly in conjunction with Super Auto Shop Services)

Crank Prep: Brand new - Balanced

Rod Prep: balanced within .1 grams (piston/pin/rod)

Balanced Rotating Assembly?amn skippy

Block Prep: Bored .5mm

Torque Plate Used ?: Dummy head used

Special Modifications to Parts: Lapped all valves and replaced any that didnt come out perfect
Tomei valve springs, Greddy 264/9.1 cams, Knife Edge intake ports, bowl work, skim head, cleaned up exhuast port quite a bit, port matched all ports, new valve seals

Any other points to add: 72mm triple ball bearing Comp turbo, Tial 60mm gate with re-route, Tial 50mm bov, Custom one piece intercooler pipes, 3.5in custom exhaust from turbo to tip- resonated no muffler, custom monster catch can/coolant overflow, PFC


Post Build Notes:
-----------------
Specific Part Failures: In progress

Overall Shop Experience: doing it right this time

[MR666]

RB26 Engine Shortblock Build Database:

Block: 89’ - O5U - R32 RB26DETT
Rods: Carrillo Forged H-Beam
Rod Bolts: ARP 2000
Pistons: CP Forged 87.5 mm
Pins: CP
Piston Rings; CP
Crank: New R34 RB26DETT
Main Bearings: ACL Race Series second over sized
Rod Bearings: ACL Race Series second over sized
Oil Pump: Nismo
Water Pump: Nismo
Timing Belt: Greddy
Cradle/Main Fasteners: ARP Studs
Knocked out large Oil Pan Sump
Head Studs; ARP Studs
Harmonic Balancer: Factory
Gasket Set; Full Cometic Engine set
Nismo Twin plate Copper Mix Clutch and lightened Flywheel

Special Build Notes:
--------------------
Machine Shop: Fraser Valley Engines Abbotsford B.C.

Shortblock Assembly By: Fraser Valley Engines Abbotsford B.C

Crank Prep: Ground & Polished & Balanced

Rod Prep: New

Balanced Rotating Assembly?: Yes

Block Prep: Decked, 87.5 mm over bore, tanked, magnafluxed, line honed, Oil gallery mods, Oil return holes enlarged to pan, Tomei Oil restrictor - 1.2 mm, casting flash removed

Torque Plate Used ?: Yes

Special Modifications to Parts: All clearances spec'd, balanced & blueprinted

Special Modifications to Parts: Head Ported and matched, Same for the throttle bodies; Cam lobe reliefs for large lift Cams, Jun Stage II Cams with Titanium springs and keepers, HKS cams gears, Custom S/S headers, turbo elbows and large S/S Y pipe, Greddy intake Manifold, Tomei fuel pressure regulator, HKS fuel Rail, Greddy Type RZ Blow off Valves, Sard Catch Can, Racing Koyorad, Custom Hard Pipes 3 inch to 3.5 inch, Twin Z32 MAFs, Turbos 2 pairs - Dash 5s and Dash 10s, Devils Own Meth injection system

[Bruizer]

Nice! I expect to see some 650whp+ numbers on that beast!

[Bruizer]

RB26 Engine Shortblock Build Database:


Round 1

Block:05u
Rods: Eagle
Rod Bolts:arp2000
Pistons: JE 87mm
Pins: JE
Crank: Machined stock r32 .020 undersize also welded on Jun-style crank collar
Main Bearings:acl .020 undersize
Rod Bearings:acl .020 undersize
Oil Pump:N1
Water Pump:n1
Timing Belt: Power Enterprise
Cradle/Main Fasteners:arp
Harmonic Balancer:ati


Special Build Notes:
--------------------
Machine Shop:Manchester engine

Shortblock Assembly By: Ball Is tic Mo tor sports

Crank Prep: crank cut and collar welded on

Rod Prep:balanced

Balanced Rotating Assembly?:doubtful

Block Prep: bored 1mm over

Torque Plate Used ?: doubt it

Special Modifications to Parts: ground crank journals .020 undersize and welded on crank collar
cleaned up DET on bowls and cc'd chambers

Any other points to add: 72mm single turbo


Post Build Notes:
-----------------
Specific Part Failures: catastrophic failure at about 1000 miles..... could hear audible knock.
teardown revealed #2 rod bearing was TOASTED car only ran for about 20 seconds when knock was heard... so much heat went into the rod it was turned pitch black halfway up. #1 rod took a touch of heat. Also found evidence the crank was walking HARD the entire 1000 miles..... all the main bearings were smushed like the crank was smearing them down going back and forth. also found evidence the crank weight kissed the cradle in one spot.
2 rods no good, crank trashed, block no good..... found the main bore totally trashed from the crank walk. the center main bearing was practically non-existant.... was paper thin and the side/thrust surfaces were totally gone down to the block/cradle

Im guessing this guy gaffed hard on the crankshaft endplay/thrust bearing. and the crank walked long enough to choke out the oil to #2 rod in the crank and thats when we heard the audible rod knock.... also i think he slapped the bearings in without even checking them and "assuming the machine shop cut everything correctly"
just my thoughts

Also found one valve slightly bent and all sealing like ****

Overall Shop Experience: experience speaks for itself



ROUND 2 (in progess)

Tomei RB28SB-015 (tomei 2.8l complete shortblock)
Block:24u (new)
Rods: Tomei 119.5mm
Rod Bolts: ARP L19
Pistons: Tomei 86.5mm Titanium top ring
Pins: Tomei
Crank: Tomei Counter-8 forged stroker crank
Main Bearings: Tomei
Rod Bearings: Tomei
Oil Pump: Tomei Oversized
Water Pump:n1
Timing Belt: Power Enterprise
Cradle/Main Fasteners: Tomei
Harmonic Balancer: ATI street


Special Build Notes:
--------------------
Machine Shop: Tomei Japan

Shortblock Assembly By: Tomei Japan
(rest of assembly in conjunction with Super Auto Shop Services)

Crank Prep: Brand new - Balanced

Rod Prep: balanced within .1 grams (piston/pin/rod)

Balanced Rotating Assembly?amn skippy

Block Prep: Bored .5mm

Torque Plate Used ?: Dummy head used

Special Modifications to Parts: Lapped all valves and replaced any that didnt come out perfect
Tomei valve springs, Greddy 264/9.1 cams, Knife Edge intake ports, bowl work, skim head, cleaned up exhuast port quite a bit, port matched all ports, new valve seals

Any other points to add: 72mm triple ball bearing Comp turbo, Tial 60mm gate with re-route, Tial 50mm bov, Custom one piece intercooler pipes, 3.5in custom exhaust from turbo to tip- resonated no muffler, custom monster catch can/coolant overflow, PFC


Post Build Notes:
-----------------
Specific Part Failures: In progress

Overall Shop Experience: doing it right this time

I musta been gone a long time...

What ever came about this tomei long block!?