Jump to content
SAU Community

Recommended Posts

correct alex hence it should be good buying for anyone interested in upgrading their turbo.

i bought it to use on this car but GCG suggested their R33 hiflow turbo would not be the best choice on a neo RB25 so it is sitting there looking for a good home (it has been sent back to GCG to be checked before sale).

btw i have an R33 GCG hi-flow with less than 5000k on it if someone is looking to upgrade their turbo.

how much are you looking for it? i was going to upgrade mine in the next few weeks during my manual conversion

LOL, why did they say it isnt a good choice??

R33/R34 turbos are interchangeable and the highflow of both turbos is identical (AFAIK), apart from the R34 turbo having a slighly larger (debatable) rear housing.

Its not the turbo that will be your limit anyway (maybe 230awkw vs 240awkw R33 vs R34), its the way you tune the car. I think it wont be easy to max out the turbo with piggy backs....

alex the rear housing is different on an R33 vs R34, it is not questionable. the outright power goal was not the issue it was whether the smaller turbine housing could be an issue on a neo RB25. in life you sometimes have to take the advice of professionals that work in that field. i am not a turbo expert but i have seen enough threads by disappointed punters that mismatched turbine housings to their application and have spent $$$$'s chasing their tails trying to fix it.

who said anything about piggybacks??

terminal pm sent.

sure is alex

the powerFC (all things going well) will be fitted in the next few weeks and then we can see what the drivability is like down low. the midrange and top end won't be an issue.

the R33 hi-flow would make plenty of power for my application so an extra 15kw or thereabouts is neither here nor there to me but for the reasons above i will use a hiflowed R34 turbo to avoid any potential issues. i am trying to re-coup my costs on the R33 turbo.

Edited by wolverine

the guys at plazmaman installed it and they used this as a test mule for a kit they will offer.

the price i paid may not relate to the retail cost for the kit since i was the first one.

i have a plazmaman FMIC on my R33 and i found the service and "care factor" very high with plazmaman after i ran into some difficulties installing the kit (not due to any fault of the kit). the patience of oyay & alex and their desire to ensure i was completely happy should be used as a model by every other workshop.

in addition, i asked them to look at making a replacement pipe from the afm to the turbo although if looks to be a complex pipe that might have too high a cost to go into any production unless there is enough demand from skyline/stagea owners.

i imagine the kit is available if anyone is looking for an alternative to the other kits on the market.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • There's restrictor pills in the stock boost control hoses. That's how they set the amount that was bled off and hence the "high" boost setting. The usual mod in the day was to remove it and send the "high" boost setting up to about 14 psi.
    • Thanks Duncan, that's the best info I've read. Furthermore after learning about the PCM programming side controlling the factory boost solenoid, the purpose of the solenoid is to "bleed" boost when pin 25 is earthed, thus allowing spring pressure in the wastegate actuator to overcome diaphragm boost pressure, thus closing or reducing the position of the wastegate flap creating more boost as the turbo is able to spin faster. It's pretty cool to see a designated Pill to do exactly this, would have liked to have seen it with a tiny filter over the end for those moments in vacuum.  The constant bleed pill has now been removed completely from the system and solenoid boost control has been restored once again.   Case closed 😂
    • The wideband reading is meaningless if it's not running. Why are you using shitty old sidefeeds on any engine, let alone a Neo? What manifold and fuel rail are you using to achieve that? Beyond that, can't help you with AEM stuff as I've never been their ECU/CAS combo.
    • Manual boost controllers (where a little of the boost was bled off) were quite common back in the day, because they were cheap and easy. Generally they had a manual adjustment screw rather than being fixed like yours. Down side is they always bleed boost, not just when you want them to so an electronic boost controller that uses a solenoid will have less lag.
    • Hello , im new here and i have A31 home build  RB25det neo stock eng / turbo  aem ems 2 blue connector  aem 3.5 map aem cas disk aem wideband connected to ecu  355 lph pump 550 nismo yellow injectors side feed aftermarket regulator  and won’t start with base aem tuner basic tune eventually flipped cas 180 degree so it triggers on correct stroke not in exhaust cycle  Now it won’t start Wideband reads 10 and 11 at lowest fuel setting  and will share calibrations soon for aem tuner i think something is wrong in aem tuner    please if you have any information, am very grateful         
×
×
  • Create New...