Jump to content
SAU Community

Recommended Posts

With so many threads about turbo upgrades for RB25's i thought itd be a good idea to start a thread that shows results only, as the results from various threads are scattered everywhere. Everyone has there own ideas about what power they want so obviously there isnt ONE perfect turbo upgrade for everyone.

Please post your RB25 dyno graphs only and state the following:

-Engine management

-Boost ran

-Fuel used (pump or special)

-significant engine mods (eg cams)

The idea of this thread is to be a quick reference to various turbo's performances on RB25's, not to be a discussion thread.

Thanks

(If this has been done already let me know, but didnt come up one in search.)

Check (if you live in usa): Costco Weekly Ad, or Supercheap Auto Catalogue.

Link to comment
https://www.sau.com.au/forums/topic/55845-rb25-turbo-upgrade-all-dyno-results/
Share on other sites

:werd:

And does someone have a rb25det hi flow dyno result that they would also like to elaborate a little bit more on.

I dug this up from an old thread heres the thread with talk on the hks2535,2540 & 3037.

Click me

And here is the hks test chart for 2510,2530 on rb20det and the rest 2535,2540 on a R33 rb25det.Very interesting and has helped me to answer some of my quetions.All tests are done at 1 bar of boost.

Click me

There is a larger range than that there too with tests done on other cars as well.

here is my dyno results

mods

3" exhaust

pod filter

10psi boost

safcII

FMIC

BP Ultimate 98

stock standard turbo

We had an idling issue last week and to fix it the boys had to mess with the safc,

after getting the car to idle she ran 285hp but i didnt get a printout so i guess for this exercise i have 273hp

221RWKW mongrel unknown spec turbo from Rigoli.

The build consisted of:

Arias Forged Pistons 1.0 mm OS (1300)

GTR rods with fresh bolts (400)

ACL heat treated race bearings (120)

Balance, clean and O ring block etc. including straighten of crank and lightening. (1100)

GTR fuel pump (180)

Malpassi Rising Rate fuel reg (120)

Standard head gasket (90)

Hybrid Monster FMIC (700) piping (120) new Mig welder (700)

Autohouse Tsukasaki PFC (secret)

Dump and front combo 3" with Fujitsubo "Jasma" 3" stainless system and racing cat also fitted.

Click Here for dyno sheet

  • Like 1

Engine management - PFC

Boost ran - 1.4 Bar

Turbo - Garrett GT30

500cc injectors

Bosch 044 pump

HKS EVC 3

45mm Turbosmart External Wastegate

Custom Made Steam Pipe High Mount Turbo Manifold

Z32 80mm Air Flow Meter

HKS 600x300x76 Tube And Fine Intercooler

Custom 3inch Exhaust

HKS adjustable exhaust cam gearstock

etc etc etc

Fuel used - BP Ultimate

Stock Internals

The dyno graph i have is from MAS 04 as i cant find the selectamaz one where it went 324rwkw on a nice cool exterior located dyno.

  • Like 1

not home atm so cant post up dyno

1995 gts-t r33

turbo back zorst with hi flow cat

pod+ cai

hybrid fmic

10psi

stock turbo

stock ecu

optimax fuel

hybrid bov

173rwkw on a 29 degree temperature at 7:30pm lol about 6 months ago was last dyno

new results in a week with power fc, avcr (12psi), z32afm

ben...

1994 GTS25t

Hybrid TO3/TO4E (high flowed too - back cut ex wheel etc)

CP Forged pistons (8:1 CR)

Grex 1.6mm HG

ARP rod bolts

Port matched manifold

550cc inj and custom top feed rail

Malpassi reg

044 pump

K&N and custom inlet piping (nil AFM)

LT12 Microtech

FMIC

HKS EBC

Full 3" exhaust

The list could go on a LOT longer!

Also now have HKS cams (256 / 264)

Dyno pre HKS cams

Boost - Drops away to make peak power of 299.1rwkw @ 1.3bar

Dyno post HKS cams

Boost - Drops away even worse now! 270rwkw @ 1.1bar

Wanted - more $$$ to get a bigger turbo, run 1.5bar and make 300++rwkw :)

1995 gts-t

Stock turbo

pfc

gtr fuel pump

adj fuel press reg

3'' catback exhaust

ebc

Pod filter+partion

Small Hks front mount

Slipping stock clutch,leak in header/exhaust gasket.Cant remember what boost it ran...

12:1 afr's

182.0rwkw

:chop:

R33 gtst

Series 1

Stock turbo

Custom Dump pipe (Seperate wastegate pipe blended in), Hi flow cat manderal 3''

Stock ecu

Blitz LM cooler

8psi boost

K&N panel

Shootout mode dyno dynamics 175RWKW

Leaning out so couldn't rev out

AFR's went to 13.1 so backed off at 4900rpm

Will dyno in jan with pfc, pfc boost controller, upgraded fuel pump/nismo press reg.

This thread is great!

gcg st.1 450hp high flow turbo . gtr front mount cooler

aftermarket manifold, ces racing 3inch split dump, 3inch cat and exhaust.

link ecu, malpassi rising rate reg.

stock internals and stock cams.

224rwkws at 17.5psi, with more power to come just need new coil before i can run more boost. 224rwkws at 1.2bar shootout mode, dont have scanner to post sheet.

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

    • I would just put EBC back on the "I would not use their stuff" pile and move on.
    • Can I suggest you try EBC directly again and link them to as many competitor catalogues as you can to show their listing is incorrect, eg https://dba.com.au/product/front-4000-series-hd-brake-rotor-dba42304/ If you have access to an R33 GTST VIN and your VIN, you could also use a Nissan Parts lookup like Amayama to show them the part number is different between 33 GTST and 34 GTT which may get their attention
    • So i got reply from EBC and they just this site where you can clearly see those 296mm fronts on R34 GTT. I send them photos and "quotes" that 296mm are not for 34 GTT and they are too small. But it will be very hard to return them cuz nobody here knows 100% and they just copy those EBC catalogue :-D https://ebcbrakesdirect.com/automotive/nissan/skyline-r34
    • Hi, is the HKS  Tower Bar still available ? negotiable ? 🤔
    • From there, it is really just test and assemble. Plug the adapter cables from the unit into the back of the screen, then the other side to the car harness. Don't forget all the other plugs too! Run the cables behind the unit and screw it back into place (4 screws) and you should now have 3 cables to run from the top screen to the android unit. I ran them along the DS of the other AV units in the gap between their backets and the console, and used some corrugated tubing on the sharp edges of the bracket so the wires were safe. Plug the centre console and lower screen in temporarily and turn the car to ACC, the AV should fire up as normal. Hold the back button for 3 sec and Android should appear on the top screen. You need to set the input to Aux for audio (more on that later). I put the unit under the AC duct in the centre console, with the wifi antenna on top of the AC duct near the shifter, the bluetooth antenna on the AC duct under the centre console The GPS unit on top of the DS to AC duct; they all seem to work OK there are are out of the way. Neat cable routing is a pain. For the drive recorder I mounted it near the rear view mirror and run the cable in the headlining, across the a pillar and then down the inside of the a pillar seal to the DS lower dash. From there it goes across and to one USB input for the unit. The second USB input is attached to the ECUtec OBD dongle and the 3rd goes to the USB bulkhead connected I added in the centre console. This is how the centre console looks "tidied" up Note I didn't install the provided speaker, didn't use the 2.5mm IPod in line or the piggyback loom for the Ipod or change any DIP switches; they seem to only be required if you need to use the Ipod input rather than the AUX input. That's it, install done, I'll follow up with a separate post on how the unit works, but in summary it retains all factory functions and inputs (so I still use my phone to the car for calls), reverse still works like factory etc.
×
×
  • Create New...