Power Estimation

[Grimnir]

Howdy Do,

Been looking over the RB25DET dyno charts that have been posted by others and havn't quite seen one with this setup so thought I'd post here to see what kind of power output people would estimate it to have.

Car is going in for a tune and power run to give me a baseline for more mods shortly.

Current mods as follows;

R33 GTS-T

ARE FMIC

740cc Nismo Injectors

High Flowed By GCG Turbos to handled 25psi

Custom Dump Pipe to Apexi N1 3.75" Exhaust - CAT has been abused..

Stock Internals, Steel Head Gasket

Port and Polish of the Head

Heavy Duty Clutch and Short Shift

Haltech E6X

Haltech Ignition Coils and Module

Haltech 3 Bar Map Sensor

Upgraded 600hp In Tank Fuel Pump

Sard Fuel Reg

[R31Nismoid]

Without knowing the specs of the hi-flow, no idea.

Although its interesting you state 25psi... GCG stopping doing thier "big" hi-flow years ago due to compressor surge issues with the factory housings.

[Grimnir]

I have no idea what the specs are, yet to pull it off and check any #'s

Can only go by what the previous owner has told me.

I know it holds 18 PSI quite nicely though.

Guess I'll just have to wait till its had a dyno run and a decent tune, the old tuner for it put it on a really safe map and its rich as all buggery. Not to keen on playing with the Haltech myself just yet though they are quite easy to use.

Without knowing the specs of the hi-flow, no idea.

Although its interesting you state 25psi... GCG stopping doing thier "big" hi-flow years ago due to compressor surge issues with the factory housings.

[R31Nismoid]

Ah so GCG didnt tell you that themselves?

I reckon its just a normal hi-flow, 250-260rwkw, and wont make much more power over 18psi or so

[stolen_s15]

^^ Exactly what ash says, but as always will depend on the dyno.

[Grimnir]

Cheers, will be interesting to see what it does pull.

Next mods on the table are a full forged rebuild with better snail.

[RB SANDY]

you should get your self some cam's and cam gears

Edited April 14, 2008 by RB SANDY

[paulr33]

i wouldnt bother with cams and cam gears, for the cost vs gain

just set it up and tune the pants off it (or pay someone to)

theres lots of response and power tucked away in the std maps

[SmashBoxx]

let us know what power you get.

[TTT]

25psi and stock RB25 internals..

this motor should make about 40% across 2 cylinders.

Edited April 15, 2008 by GTST