RB20 More Power

[Waldo]

hey how can i get more power from me RB20, it currently has a High Flowed turbo (laggy as all hell), 3 inch exhaust turbo back, HKS front mount, a japan tuned rom, and 1 bar boost, it has a stocko fuel system and stock internals.. i need a good recipe to make 250 - 280rwkw....will the high flowed unit do this, and wat should i get done to make this power? :flamed:

[TurboX]

hey how can i get more power from me RB20, :

This question has been done to death, you can find a hell of a lot on RB20's by using the search function.

But since it is dear to me I will say that you probably need to backcut the turbine wheel, replace the CAT with a GTR's, modify head, Adj Cam gears, = AIR OUT

Replace the Injectors with 550's, New 040 Bosch in tank Fuel pump, Rising rate FPR, = FUEL IN

Modify the Airbox for more cool air in, replace the filter - DONT FIT A POD, see BAS JUNKY's Group buy on mod TurboDuct, modified Intake -reduced length piping, modify Head, Adj. cam gears = AIR IN.

NewECU or recalibrate orig ECU = CONTROL

FUEL IN + AIR IN

--------------------- = AIR OUT = POWER!!!

CONTROL

Or something like that.....

[Kaido_RR]

i would ditch the tune rom unless you know someone that can tune it near you and get urself a pfc or something similar

[Waldo]

so you think the high flowed turbs could run that amount of power easily

[Waldo]

my car came with a steel pod...yesterday i made a sheild that stops the heat from being sucked in. and i have a nice pipe coming up from the stock intercooler pipe spot that just pumps cool air onto the pod...but the pod is fully sectioned off from the engine now

[Kaido_RR]

Waldo, do u have any info on the turbos? like wat they are rated at etc etc?

[predator]

you'd need to know more on the turbo itself...

sounds like it could possibly be an rb25 unit highflowed to probably suit a 2.5L rather than a 2L .. hence the lag.. not enough capacity flowing from the 2L to spool it up quick enough.

[Waldo]

nah its really laggy, my mate that owned the car b4 me got it done he just took it to some place at slack creek (i think AGC Performance or sumthing) he got a steel wheel put in it and the center section isnt an rb20 one. He never got ball bearings put in it cos it was costing him to much, so she doesnt hit full boost till 5000rpm, im goin to get ball bearings put in it though to help this lag. i think its just one of those standard high flowed jobs that most people get done

[600hp]

i'd turf that turbo and stick on a GT-RS that you can know get.Put on a power fc and fix up your fuel system with some bigger injectors and a big fuel pump.

then get someone good to tune it.

[Ronin]

If you want that much power from an rb20 its going to be a lag beast no matter what you do.

[Waldo]

its ok if its a has a bit of lag but id like to see it hit boost before 5000rpm, i want it around 3800 - 4000rpm, im going to invest in a stainless manifold and a split dump pipe to help.

[Kaido_RR]

what boost are u running? full boost at 5000rpm sounds like the turbo would be pretty high rated :S -guess

saying that i guess it would be rate around the 400-500hp mark

[Waldo]

its runnin 1bar boost..........ive tried to run 1.2bar but the computer has a boost cut at 1.2

[Waldo]

hey i have a SARD rising rate fuel regulator to put on...........would i get any power gains from just putting that on now without a big fuel pump....and how much fuel pressure should i have if i put on a Bosch 044 pump

[Kaido_RR]

i would say change or have the rom reprogramed. That will be holding u back afar bit aswell, PFC is cheap cost you $1100 - $1200 + tuning

[Waldo]

mate i have an R32 GTS-T "RB20DET" where the hell do you get a PFC for that

[Kaido_RR]

here a few places:

http://www.nengun.com/

http://www.greenline.jp/

i find nengun the cheapest

[Waldo]

sweet ill check em out eh

[Kaido_RR]

as for tuning head over to the http://www.skylinesaustralia.com/forums/fo...display.php?f=6

and ask people in ur state

[Waldo]

so a power fc for an RB20 costs around $1100 from nengun.com