Jump to content
SAU Community

Recommended Posts

hey guys i just wanna know how much power you think my rb20 will have with all these mods:

Hiflowed RB20 turbo

Bosch 040

HKS Front Mount

3.5inch Exhaust with apexi N1 catback

CAI with heat sheilded pod

14psi but want to get it tuned for 18psi

Splitfire coilpacks

Tomei Cams

Apexi Power FC

GTR Injectors 444cc

what would you guys expect from 14psi and 18psi with these mods???

Link to comment
https://www.sau.com.au/forums/topic/75865-power-expected-in-rb20/
Share on other sites

14psi... 240-250rwhp

18psi... 250-260rwhp (+ or - 10rwhp)?

Wouldnt be as much difference in the to boost levels as that turbo wouldnt be able to stretch too much further i dont think??

You should have a very nice mid-range with the cams and once its tuned up though!!

whats the differance between the rb25 high flowed and the rb20 high flowed?? wouldnt they just be the same thing once high flowed....like i didnt get the high flowed done (my mate the previous owner did) and it cost him $1650 to get done and i dont know what HP rating it was.

Not 100% on that, i think the rb25 turbos housing is the same as rb20 turbos so once hi-flowed the rb20 turbo maybe more like an rb25 or even a hi-flowed rb25 turbo (dependin on extend of hi-flow)!

Most hi-flows aren't to the extent the GCG 450hp re-build from what ive seen so far!

Well if its the 450hp rebuilt turbo then ur looking 300rwhp on 1 bar boost if ur engines in good nick!!!

Especially with ur cams and a good tune, you maybe able to crack 310-320rwhp again dependin on ur engines condition and if ur happy to run 18psi through it all the time lol

at the moment it running all those mods minus the cams and injectors...on a standard ecu and it runs perfect, but doesnt feel like its all the power she can produce so once i get the cams and injectors in and get the power fc tuned i am hoping to crack 300rwhp...im just waiting on delivery of my power fc from japan

Do remember dyno figures are different for dyno's etc etc

But your car sounds pretty healthy dude :rofl:

Black r32s... theres a few now but cant get enough of them, sexyyy

Yep, get it on the dyno, post up the graph and tell us how you went. There more RB2o's out there putting in good power out puts the better in my book, what an AWESOME engine :Pimp2:

Black R32's are sexy but there are a few getting around where i live at the moment.

hey guys i just wanna know how much power you think my rb20 will have with all these mods:

Hiflowed RB20 turbo

Bosch 040

HKS Front Mount

3.5inch Exhaust with apexi N1 catback

CAI with heat sheilded pod

14psi but want to get it tuned for 18psi

Splitfire coilpacks

Tomei Cams

Apexi Power FC

GTR Injectors 444cc

what would you guys expect from 14psi and 18psi with these mods???

The old RB20DET in the R32GTST made 225 rwkw (302 rwhp) with a GCG ball bearing hi flow at 1.3 bar. It had over 1 bar at 3,250 rpm so it wasn't laggy. The only difference to what you have listed may be that it had a split dump and no cat (they are not on your list).:rofl:

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

    • Version 1 aluminium airbox is.......not acceptable No pics as I "didn't like the look.....alot" Even after all my "CAD", and measurements, the leg near the fusebox just didn't sit right as it ended up about 10mm long and made the angle of the dangle look wrong, the height was a little short as well, meh, I wasn't that confident that Version 1 was going to be an instant winner I might give Version 2 another go, there's plenty of aluminium at work, but, after having in on and off a few times, and laying in the old OEM airbox without the new pod filter and MAF, there may be an option to modify the OEM air box and still use the Autoexe front cover and filter.... maybe This >  Needs to fit in here, but using the panel, and not the pod, the MAF will need to fit in the airbox though> I'm thinking as the old OEM box and Autoexe cover that is sitting in the shed is just sitting around doing nothing, and they are relatively abundant and cheap to replace if I mess it up and need another, it may well fit with some modifications to how the Autoexe brackets mounts to the rad support, and some dremiling to move it get in there, should give me some more room for activities, as I don't want to move the MAF and affect the tune Sealing the hole it requires to stick it in the air box is simple, a tight fit and some pinch weld will seal it up tight  I am calling this a later problem though
    • and it ends up being already priced in as though you're just on 91RON without any ethanol. Car will lose a bit of economy as the short and long term fuel trims bring down the AFR back to stoich or whatever it is for cruise/idle for the engine.  
    • Oh, you are right. But, in Australia E10 is based on 91RON fuel and ends up being 94RON. Hence it being the cheaper option for economy cars. The more performance oriented cars go for the 98RON fuel that has no ethanol mixed in. The only step up we have left then at some petrol stations is E85.
    • There is a warning that "this thread is super old" but they ignore that anyway...
    • With 10% Ethanol, we're talking 2-3% fuel consumption difference. The emissions reductions and octane boost in my opinion far outweigh this almost non existent loss.    My tanks sitting at 80%. Luckily that should go down fast as I'm on vacation again for the next two weeks. 
×
×
  • Create New...