Poorest Rb30S Youve Done. Slappers Etc

[joe blo]

ok im gunna be an rb30 man again. anyone got a rb30 motor or bottomend available in brisbane and surrounding areas?

[r311111]

currently building one using the 300k+ block that's already in the car ( seems to be in perfect condition surprisingly so have all my 30's other then one having f**ked vss ) and if i'm feeling adventurous highly unlikely though as i am a lazy flamin mongrel who hates to lay on the floor other then to sleep, the sump will be coming off to throw some bearings in it and to bump up the oil pressure up (lack of driveway).

almost together and consists of

gt35/40 cheapie on a decent high mount and external gate

3.5' superdragger i think

ebay plenum

660cc injectors

decent cooler 2.5" piping

z32 afm ( thinking about going the r35 route thoughts ? )

decent cooler

stock 25det head tidied up and modified for vct

arp studs

stock head gasket not genuine nissan

hdi boost controller

twin tensioners side by side

ebay oil cooler

external bosch 044 with surge

alloy rad

genuine nissan thermostat

cheapie catch can to do the catching

mx7/33box with 4 puck clutch

thinking about limiting it to 6.5 k rpm with the 300k old bearings and stock oil pump or around the 7 mark if i can be arsed to change the bearings.

hoping to pound it with 20psi and am hoping for just over the 300 mark, thoughts ?

[KiwiRS4T]

currently building one using the 300k+ block that's already in the car ( seems to be in perfect condition surprisingly so have all my 30's other then one having f**ked vss ) and if i'm feeling adventurous highly unlikely though as i am a lazy flamin mongrel who hates to lay on the floor other then to sleep, the sump will be coming off to throw some bearings in it and to bump up the oil pressure up (lack of driveway).

almost together and consists of

gt35/40 cheapie on a decent high mount and external gate

3.5' superdragger i think

ebay plenum

660cc injectors

decent cooler 2.5" piping

z32 afm ( thinking about going the r35 route thoughts ? )

decent cooler

stock 25det head tidied up and modified for vct

arp studs

stock head gasket not genuine nissan

hdi boost controller

twin tensioners side by side

ebay oil cooler

external bosch 044 with surge

alloy rad

genuine nissan thermostat

cheapie catch can to do the catching

mx7/33box with 4 puck clutch

thinking about limiting it to 6.5 k rpm with the 300k old bearings and stock oil pump or around the 7 mark if i can be arsed to change the bearings.

hoping to pound it with 20psi and am hoping for just over the 300 mark, thoughts ?

Sounds ok I have 314 awkw with stock unbalanced bottom end but with rings, bearings and conrod bolts limited to 7000rev/min and 1.5bar. If you don't do the bearings limit it to 6000 - 6500 and it should make near enough the same power.

[Ben C34]

I would have thought you could find an engine with lower ks easily enough.

I would rather use a better nic bottom end than replace bearings on a hi k motor.

[r311111]

Kiwi rs4t that sounds like exactly what i'm hoping to do ! thanks, i have been waiting for thread like this to come up haha.

Superben, Surprisingly the motor looks brand new, the car has been serviced at a max interval of 7,000km's since new and everything that can be seen looks great.

[#skyginer]

Just go down the proven path, low km high compntest results and shim stock oil pump. Leave the bearings on rods ends etc.

Save the money on the little things and put towards a better tune

[Sir Lord Van Von Vader'ham]

Mine is a completely untouched low km bottom end bolted to a untouched head.

Rev limited to 6500rpm and 20psi putting just over 350rwkw. Only ever gets driven hard too.

Got some blow by at wtac, but that may have been from bouncing of the limiter all the down the main straight.

Cylinder psi is 130 across all 6 but im not sure I check correctly either.

Edit. Does has a 25 oil pump

[joe blo]

what turbo and fuel is that on?

[joe blo]

i just pulled apart my next rb30. has pistons with 67s20 on the top. can anyone confirm if there genuine nissan rebuild ones? the part number on the pistons is the last numbers of the nissan rings but cant find part number as pistons

hopefully they are nissan ones. rebuilt between 100000 and 205000km somewhere

[Sir Lord Van Von Vader'ham]

gt35r gtx and 98.

rich tune helps too.

[Duncan]

i just pulled apart my next rb30. has pistons with 67s20 on the top. can anyone confirm if there genuine nissan rebuild ones? the part number on the pistons is the last numbers of the nissan rings but cant find part number as pistons

hopefully they are nissan ones. rebuilt between 100000 and 205000km somewhere

I'm not familiar with stock rb30 pistons, but stock rb26 pistons have 05U and a dot indicating front. So if 67S20 is the end of a Nissan part number it seems likely they are standard. And therefore standard bore as well which is good

[joe blo]

yea i think they standard bore rb30 nissan ones. at first i thought they were 20 thou over rebuild ones coz of the "05" and "20" in the part number

[joe blo]

Anyone else done one recently?