RB20 standalone? Larger Turbo?

[apex_7]

What are my options? I currently have a stock 20 w/ a FMIC, exhaust, bc etc. I know everyone is saying to go w/ like a 50-trim T3/T4, but is that enough? My goal is like 450+rwhp. I've seen on the Austrailian Skyline boards where they use the HKS T04E kit. Does anyone know what kind of hp and tq that kit makes or if the kit is even obtainable? I can't find any info on it anywhere. And what kind of standalone is everyone going with? Has anyone done a standalone system on an RB20? Thanks,

~Tony

BTW, I do know what a search button is so don't gimme that

[cyris3d]

i made 350 at 12psi with my t3/60-1.... at 20-22 psi wth 550s.. 450 should be no problem... as for standalone.. i think all ya would really need.. is the stock ECU chipped for 550s.. and ud be ok.. im selling my turbo set up if your intrested..

[goofynick6]

i made 350 at 12psi with my t3/60-1.... at 20-22 psi wth 550s.. 450 should be no problem... as for standalone.. i think all ya would really need.. is the stock ECU chipped for 550s.. and ud be ok.. im selling my turbo set up if your intrested..

You have a rb25 tho,..he's dealing with the 20.

Nick

[rbsileighty]

I know you said you did a search, but (don't take this the wrong way... just giving you a direction to search) do a search for WDRacing (username) and RB20 or RB20DET. He was putting out that kind of power with a 20. Be sure to understand that this will not be a street friendly setup. The 20 has a low volumetric flow rate due to it's low displacement, so the velocities needed to spool a large turbo will only come with high RPM's... aka lag (off boost power will suffer... I think he was only running 8.2CR or something). This was your car not mine WD... so feel free to correct me. I think you were using the T04E he spoke of on your setup as well... right?

If you are like me and just like this motor and want this hp goal (mine is not that high)... then go for it. However, if you are just looking for 450rwhp out of an RB then you might want to look into a 25 or a 26.

With the larger displacement it will be a much more streetable power band than that same output on a 20. You might want to look into a GT30R or GT35R to reach those power goals (GT30R might come just short of the 450rwhp mark).

This is only my opinion... so take it only as such... hopefully it helps you out some.

[cyris3d]

i still think with a 20 its possible.. 400 deffinitly.. gotta member its a higher reving motor.. so there is gonna be more of a power band..

[rbsileighty]

i still think with a 20 its possible.. 400 deffinitly.. gotta member its a higher reving motor.. so there is gonna be more of a power band..

I definitely think it is possible... streetable is a different story. Switching to the BB 16v_10 from the 16v_12 non BB turbo that use to be on Hybrids car really opened my eyes to how nice it is to have a smooth progression of power.

[apex_7]

Thank you for the responses. I basically want something I can drive everyday if I wanted to. I don't want to spend more than $5k on the new setup. Does anyone sell the power fc for the 20? I don't know much about the HKS GT30R, but it's ball bearing right? So what kind of spool time does it have? I have considered going w/ the 25, but I think I want to stay w/ the 20 just because no one around here knows what it is. And if they do, they say "oh, that's the ****tier one". So yeah, I've already got a set of 550's, so I just need a new turbo, engine management, and I guess a new manifold. Does anyone even make a new manifold for it? Or can I just run a spacer w/ an extension for the external wastegate? I'm running an mbc right now, but I am ordering a profec b. Thanks again.

[cyris3d]

if u get a turbo with out an internal gate.. you will need an adapter box to make one fit..pic of mine.. for sale!

[rbsileighty]

The GT30R is a Garrett turbo, which is a lot cheaper than a HKS unit. I would imagine you would start seeing boost around 3300, which is when the motor starts making the lowest flow on the compressor map (~6.X lbs/min). If you called around you could probably find out a more solid figure, or maybe someone else here on the board could confirm or correct this number since I am just guessing.

[apex_7]

what turbo is that cyris3d? you have an email address? Yeah, I really don't know how to read compressor maps. I'm still learning.

[cyris3d]

thats my first turbo.. the t3/t4... but the one on the adapter box now is a 60-1... [email protected]

[USMCgetsome]

where can you get the rb20det ecu chipped?? i haven't seen any fourms related to this