12sec stock turbo secret revealed ??

[BOOSTD]

Ok everyone has be telling me for ages that my turbo can't be stock for the power it makes.

I just recently heard some strange noises from the turbo area and decided to pull it off. The rear housing is standard as is the turbine(48mm ceramic). The compressor is 49.5mm top and 64mm lower. I compared it to a VG30bb and the trim on the blades is also different. The compressor cover is also a 45V2 VG30bb unit with slight machining.

Can anyone tell me if the 45V4 rb25 compressor is the same dimentions as the Vg30 or More like mine???? meggala???

Would be good to work out if it has been modified, seems to work very well. If it does turn out to be non standard, I would think a VG30 comp cover and high flow wheel with the same trim would be a very cheap upgrade.

full boost by 2500 to 3000

218rwkw @1bar

225rwkw @1.1bar

I am having it rebuild with a larger VG30 exhaust housing. I will post the result next week after it's finished and dyno'd.

the car came over with a chipped computer and massive fuel filter-go figure. maybe it had a package deal done, I have seen the advertised by tuning shops in japan.

[hippy]

stock turbo no longer .. change that sig!!!

[BOOSTD]

.

[meggala]

sounds to me just like a vg 30 hiflowed turbo

that your car had in it to start with

[BOOSTD]

The exhaust housing and turbine is smaller than the VG30. Are VG30 turbines ment to be 49mm and Rb25 48mm???

[meggala]

yes matlowth used to run a similar turbo on his car made simialr power etc

theyare great on an rb20 as well

[Drivebai]

Boosted,

What other mods have you done my goal is around 230Kw at the wheels dont wanna go too far past this as i still want a daily driver and something reliable...

Just wanna know what i need to get it to that kinda power.. slowlu buiding up.. i'll prolly get there in about 10 years though.

[rev210]

Well you may have at least got some sort of 'stock' nissan turbo even if it isn't the GTST one.

Give's me another go at the 12 second barrier

[paydro]

i seen you are running a 50hp nos kit i was woundering if it was expensive for the kit

[rev210]

paydro,

the kit cost me $400 out of the local trading post. Normally around $1400.

The car will run a high 12 without the Nitrous. Tyres permitting a low 12 with the switch flicked. after I set it up on 50hp a 100hp jet goes in and 11's are on.

[paydro]

sounds very cool to me.

im in the process of upgrading my standard r33 for 12 sec passes but i dont want to use nos yet i want to keep the internals stock as well but planning on using a apexi power fc and avcr boost controller with an obvious turbo upgrade or larger internals.

theres a few other things ive got inmind but ill se how this goes first.

but nos definatley sounds like fun.

p.s. good pick up on the nos

[BOOSTD]

bump

drivebai, performance wise the car has a zaust, filter, cat in pipe, HKS EVC, Power FC, Cold air intake, Greddy front mount intercooler, oil/air seperator, octane booster for 12sec run and a HKS solid centre twin plate clutch. Also running 255 17" on the back.

[BOOSTD]

bump

drivebai, performance wise the car has a zaust, filter, cat in pipe, HKS EVC, Power FC, Cold air intake, Greddy front mount intercooler, oil/air seperator, octane booster for 12sec run and a HKS solid centre twin plate clutch. Also running 255 17" on the back.

[Drivebai]

Boostd thanks man.. i have all those mods except for about 90% of them hehehe so it looks like i will need Power FC, front mount oil/air separator, and hi flow turbo.. basically i need all the expensive stuff... yeah i got 255 17" on the back as well man... I wish you were in Sydney dude.. cos you are pretty much where i am aiming for round 230rwkw... would have been good if you could have taken me for a spin in your car.. so i can see what 230rwkw feels like and compare the differences between my fairly stock crappy car!!!. then i would have more incentive to save.. hehehe.

[Cool Hand Luke]

To give you an idea what 230rwkw feels like, i went in an RB20 with a 25 turbo in another 180sx, and it was easily noticable over my RB20 with std turbo . Thats probably got a 25rwkw power difference.

[rev210]

I wish I had 255 tyres

[rob77]

when paul gets back from the uk I could get him to throw some cheap shit 265/35 tyres on the 18x9 rims I got dave

[rev210]

I like that plan!

[paydro]

hay boosted i was just woundering what psi are you running and is it stock internals with the ceramic turbine wheel

[rev210]

boosted has stock RB25 block. He's run 1.1bar through that turbo.