Nacho Vidal

Rb25 Turbo Upgrade, All Dyno Results

1,096 posts in this topic

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.)

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Ill start with some recent ones..

Thizzle's GT-RS, FC, 1bar, pump fuel (im assuming)
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HKS GT2530
Power FC
1.2bar (dropping to just under a bar at top end)
BP Ultimate 98
Straight thru cat pipe used for this run, and is the highest figure ive made with this turbo.
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Has someone got a reference dyno sheet of a stock turbo'd engine? That would be good to compare against.

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: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.

[url="http://www.skylinesaustralia.com/forums/showthread.php?t=35888&highlight=turbo+comparison+chart"]Click me[/url]

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.

[url="http://www.hks-power.co.jp/products/turbo/turbinekit/ac_gt/ac_gt.html"]Click me[/url]

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

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here is my dyno results
mods
3" exhaust
pod filter
10psi boost
safcII
FMIC
BP Ultimate 98
[color="red"]stock standard turbo[/color]

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

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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.

[url="http://"http://www.skylinesaustralia.com/forums/attachment.php?attachmentid=18815"]Click[/url] Here for dyno sheet
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301.06 kw at wheels...hks GT-RS 1.38 bar Edited by thizzle

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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.
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209.5kW 96 Series 2
Engine management - Stock ECU
Boost ran - 12psi
Turbo - HKS 2540
Fuel used - BP Ultimate
Stock all other internals.
Blitz DSBC 1st gen
Hybrid Front Mount
3" Exhuast from turbo back
Pod Filter
Stock BOV

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185.5kW 93 series 1
Engine management - Stock ECU
Boost ran - 0.9 Bar
Turbo - Stock
Fuel used - Optimax
Stock all other internals.
Apexi AVCR
Hybrid Front Mount
3" Exhuast from dump pipe back
Pod Filter
HKS SSQ BOV

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1994 R33 GTS25t

Avcr - 0.8bar
Full zorst
Trust IC
Standard Turbo
Standard Ecu - no tuning or piggybacks
Automatic gearbox

180.3 Rwkw

Good strong power curve :burnout:

This was bout 3 months ago, shes a little different now :)

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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...

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94 gts25t
hks 2835
trust 35mm gate
17psi
hks exhaust manifold
wolf plug in
440cc injectors
pump fuel
walbro pump
stock internals

258rwk

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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 :)

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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:

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R33 GTST
Series 1
Stock turbo
Stock ECU
Stock cooler
Ran 12psi,
Cat back 3 inch
K&N pod
made 160rwkw
hoping to better than with new engine :)

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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!

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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.

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