Rb25 Turbo Upgrade, All Dyno Results

[Tangles]

Dayz special edition Stagea RS V Four

82150kms, automatic, RB25DET engine, Attessa 4wd

New Oxygen sensor, timing belt & service at 81000km

Got 141.3kw at 4wheels @ 10psi

installed most of the following:

- 3inch JustJap stainless single dump pipe system

- 3inch Catco high flow catalytic converter

- 3inch Dayz edition cat-back exhaust system with quiet muffler

- K&N pod filter in custom enclosure

- R34 GTT intercooler

- Hybrid dual stage Electronic Boost Controller

- Apexi SAFC Super Air Fuel Computer

Now 160kw at 4 wheels @ 12psi

added the following:

- Apexi SITC Super Ignition Timing Computer

- Bosch 040 fuel pump with direct battery feed

- Nismo adjustable fuel pressure regulator

- Nissan Z32 Air Flow Meter

- Apexi 'hybrid' front mount intercooler

Cheers, Brendan

Edited November 25, 2005 by bwilkeson

[mnbvcxz690000]

I got 174

I have

full exaust

pod CAI

Hybrid front mount

10 psi

stock everything else, just running very rich at the moment getting a PFC soon

I have the dyno sheet, just don't know where it is at the moment

Can I expect 200 or close to once the PFC is tuned?

Edited November 26, 2005 by mnbvcxz690000

[R3LOAD]

If you up the boost to 12psi and with a pfc then you should get up around the 200 rwkw mark.

I had mine dyno'd Friday morning, i have:

Full exhaust with hi-flow cat

HKS pod filter

FMIC

PFC

12psi

Got 199.1rwkw, something i was fairly pleased with.

here is the dyno sheet.

[Shado34]

r34 gtt

all stock except hks SSQ bov, k&n panel filter and power fc.

153kw

435Nm torque

done at bel.

good or bad results?

[nuffin_werks]

This was a while ago

R33 gts-t

stock turbo

stock intercooler

11 psi

hks screamer dump pipe of turbo

"bullet" mandrel bent 3" system

hi flow cat

hks ssq blow off valve

apexi pod filter

= 175 kW @ wheels

[kimbod]

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.)

<{POST_SNAPBACK}>

Ok.

4 door R33

5sp man

14lb boost with sua forum boost controller

3inch dump .

standard from cat back

unifilter ramtube and pod filter.

98 ron vortex

trust fmic

Mines ecu

quick dyno with no cooling blower or strapped down

standard horsepower when I got it was 164rbhp

[R31Nismoid]

ive removed the chit-chat.

post details results or posts removed also

[GIR]

Stock 1994 R33 GTS-t

143rwkw

Engine management - Stock ECU

Boost ran - 7psi

Turbo - Stock

Intercooler - Stock

Standard BOV

Standard exhaust

Fuel used - BP Ultimate

Stock all other internals

Transmition - Automatic

[skyline.33]

1995 Skyline GTS-t R33

208.9rwkW

Apexi Power FC

Stock Turbo - 15psi - GFB Bleed Valve

Hybrid GT-Spec Tube and Fin Cooler

Full Exhaust

HKS Air Filter

Fuel - Shell 100% Octane

Stock Internals

[teazn_r33]

298.1 rwkw

t70 turbz

50mm gate

malpassi fuel reg

bosch 044

blitz fmic

heavy duty clutch

stock internals

stock ecu

getting rebuild now "lol" hoping for up to the 400rwkw mark now and some gas new ecu and traction

[paulr33]

just a comparison, visual reference chart

ive taken data from various dyno graphs

its by no means a true accurate representation just more of a visual view

it assumes they were all in 4th gear and in the same mode ie shootout or non shootout and all are even playing field comparisons which they never are

[locosam]

1995 R33 GTS-t (series 1.5)

206rwkw

Engine management - Apexi Powerfc

Boost ran - 13psi with evc 4

Turbo - Stock

Intercooler - Greddy Vspl fmic

Standard BOV

Full 3 inch exhaust (dump pipe and cat from batmbl)

K&N Pod (left open)

Greddy Ex Cam gear

Fuel used - Synergy 8000

Stock all other internals

I felt it was a good tune considering the heat today. It was a pleasant suprise to see that since i always thought my car was a bit of a dud. Many thanks to Unigroup for the tune and fitting me in on short notice

(in case the picture doesnt show up, heres the rev vs power figures)

3000- 105

3500- 117

4000- 134

4500- 154

5000- 169

5500- 182

6000- 200

6500- 206

7000- 204

[Bobjones]

OK, after recent Dyno day where the car got 129.7rwkw (yes this is not a misprint, due to AFR's richer than 10:1 due to the standard computer) I went to MM for a tune...

159.9rwkw

Management: Power FC

Boost 10psi with GFB atomic boost controller

AFR: 11.8:1

Exhaust: Bellmouth dump, custom mandrel 3" and stainless 3" cat, with 5 Zigen rear muffler (rather large and thus nice and quiet)

Engine: Rebuilt with Venolia Pistons and Chrome Moly rings (that is one is Chrome coated the other compression ring is molydeneum(sp) coated...and for anyone that reads this there is NO SUCH THING AS CHROME MOLY RINGS...

Head: Mild port and polish, reseated valves all standard, standard static compression (8.9:1 on average compared to stock of 9:1)

Malpassi Rising Rate Reg

Walbro Fuel Pump

GFB Stealth Bov

K&N Filter with no heat partition (has been put in since)

Stock Cooler

Stock Turbo

Was a reliable safe tune due mainly stock intercooler and considering this is often driven daily.

The midrange and low down is now incredible. For those about to spray I got more power for same mods. Excellent for you, but this will run this all day everyday!!!

First Dyno Graph Shows before and after with AFR's and the Second is with Boost.

Edited January 6, 2006 by Bobjones

[95skyline]

Stock 1995 R33 GTS-t

173 rwkw

Engine management - Stock ECU

Boost ran - Stock

Turbo - Stock

Intercooler - Stock

Standard BOV

Fuel used - Optimax

Transmission - Manual

Mods

Exhaust - Trust PE2 cat back (stock front/dump pipe and cat)

Air Filter - A'pexi panel (in standard air box)

[cordiapower]

r33 gts-t, t-57 stage6 ITS turbo high mounted, sard injectors, tomei fuel pump, intercooler etc. nine pack clutch etc.

these are the figures i took from my dyno sheet as i couldnt scan it, does it seem laggy? car is only standard internals so timing is retarded and you can see the difference in power it made when timing was increased from 13 to 15...

at drags i did only 13.8@175km/h with 347atw and 14.2 with 372atw due to no traction and i think clutch is not handling the power (9 pack extreeme clutch 2500lbs pressure plate) as at drags after a run or a little burnout it just doesnt wanna go in 3rd and 4th gear so ill prolly need twin plate especially after rebuild and more power...which twin plates are drivable and reasonably priced?

15-16 psi boost 347hpatw 13 timing

2770rpm 78rwhp (58rwkw)

2950 88 (66)

3400 125 (93)

3850 187 (140)

4300 215 (160)

4750 260 (194)

5200 292 (218)

5650 312 (233)

6100 333 (248)

6380peak 340 (254)

6550 347max (259)

7000 342(255)

15-16 psi boost 372.5hpatw 15 timing

2770rpm 79rwhp (59rwkw)

2950 87 (65)

3400 126 (94)

3850 197 (147)

4300 250 (187)

4750 290 (216)

5200 313 (233)

5650 338 (252)

6100 359 (268)

6380peak 372.5max (278)

6550 368 (275)

7000 363 (271)

[Konrad]

Stock ecu, internals, turbo, injectors and pump.

Jasma exhaust (turbo back but no split dump)

Blitz bov

Apexi pod

1st run - stock boost 7psi

2nd run- 10psi via turbotech boost valve and r34gtt intercooler

[Abo Bob]

Well I'm still not entirely happy with things and now my transmission is crapping itself.

Anyway here are the dyno sheets.

Mods.

Stock airbox with Nismo panel filter

GCG highflow turbo

CES split dump/front pipe

3" cat

3" Fujitsubo cat back with 2 mufflers

480cc Nismo injectors

Auto - chipped ECU

R34 GTR fuel pump

R34 GTR regulator

around 12psi boost.

<{POST_SNAPBACK}>

Well my dyno sheet seems to have disappeared from that post but in the meantime my engine blew up and I had to get it rebuilt.

Now has Tomei Poncams Type B 260/260 and reduced compression ratio of 8.75:1. No other changes.

Running 0.9 bar boost I now get 255rwkw

[DriftR_33]

made 195.7rwkw in 35 degree heat.

apexi front mount

standard turbo [13.5psi - drop to 11]

bosch 040 pump

full 3" exsaust

power fc

need a 30/35!!!

[gtst93]

r34 gtt neo 6

[email protected]

td05sh-18g

power fc

trust fmic

hks electronic boost controller

3inch exhaust

walbro fuel pump

trust pod

having some boost problems atm. boost not holding above 12psi. i think it is due to the having no cat and the turbo is over spooling.

[Beeble]

R33 GTST series II

HKS GT-RS at 15psi

PowerFC

Nismo 740 injectors

Supra MkIV fuel pump

Pod and full 3" exhaust

229rwkw, and boy was it warm today

Full boost at around 3000

Ben had it up to 240kw, then softened it up a bit.

Drives smooth as silk. Very happy

And the figure seems about right - next step up is probably the 2835 pro S which seems to be pulling 260-280rwkw for most

Edited January 21, 2006 by Beeble