Best Rb20 Turbo Setup

[WazR32GTSt]

anything that is bigger than the stock turbo on the rb20 is going to pose a response issue. its just a matter of how much lag you can live with..

after all regardless of what turbo you put on it, its still an rb20.. which means a small stroke and gutless at low rpm

i'm not the best to give advice on turbo setup, other than i had an rb25 turbo and response was essentially unchanged over the rb20 its only a very small upgrade in the scheme of things. a 2510 would be awesome i would have though, but $$. 2530 is supposed to be great but again even this is going to give lag, it all comes down to what you're used to and whether or not you can stand the lag issue

if you want response, consider an exhaust cam gear instead of an aftermarket inlet manifold (which you mentioned) which will probably do absolutely nothing..

Edited November 22, 2007 by WazR32GTSt

[sky_2.0T]

anything that is bigger than the stock turbo on the rb20 is going to pose a response issue. its just a matter of how much lag you can live with..

after all regardless of what turbo you put on it, its still an rb20.. which means a small stroke and gutless at low rpm

i'm not the best to give advice on turbo setup, other than i had an rb25 turbo and response was essentially unchanged over the rb20 its only a very small upgrade in the scheme of things. a 2510 would be awesome i would have though, but $. 2530 is supposed to be great but again even this is going to give lag, it all comes down to what you're used to and whether or not you can stand the lag issue

if you want response, consider an exhaust cam gear instead of an aftermarket inlet manifold (which you mentioned) which will probably do absolutely nothing..

thanks for the input, really appreciate it. I think I'm going to stick with the 2510. Do you suppose an intake manifold like the 26 style would help out? I really like the low rpm spool, but I like revving too so I could live with a 2530 if that's what it comes down to. What would make an rb20 safe to rev to 8000rpm + ?

[Roy]

What would make an rb20 safe to rev to 8000rpm + ?

With the sized yurbos you are looking at i would suggest there is little point reving the engine that hard as power will most likely nosed over. Safe? They can do it std, but safe? Revs kill motors more then boost. Only rev it as long as you are mmaking power. I would actually drop the rev limit to 7,000rpm and give it a well tuned 16psi for a reliable engine setup

[sky_2.0T]

Yeah I know about the revs, I need to stop watching the mines r34 video haha.

Kurtis-Let me know how your setup works, as far as spool, performance, etc.

I'll prob hop on the 2530 wagon.

[WazR32GTSt]

Do you suppose an intake manifold like the 26 style would help out?

all i know is what i have read on this forum and from magazines, but it all points towards that style of manifold doing NOTHING except making you LOSE low down torque. waste of money imo.

[Baz]

Havent read the whole of the thread lol but on RB20 what I have seen work well is the

Trust TD-06 20g

HKS 2530

[bubba]

Shorter runners = better top end response but less torque down low (I think that's how it works).

The standard 25DE intake manifold I have is proven to be good for nearly 500rwhp. Ports are slightly bigger than the RB20 manifolds. More than enough for my current goals.

Edited November 23, 2007 by bubba

[Simon-S14]

pretty useless tho unless you port the head also, they are a different shape also. its not as simple just to bolt it on and hope for gains

[sky_2.0T]

pretty useless tho unless you port the head also, they are a different shape also. its not as simple just to bolt it on and hope for gains

I was planning on doing all new bearings below, maybe pistsons/rods/head work, balance everything. The goal would be a 260rwkw motor that is responsive that can take a good beating. If I have enough cash maybe I'll look into a tomei motor, although they are expensive !

[grandmasterb]

I was planning on doing all new bearings below, maybe pistsons/rods/head work, balance everything. The goal would be a 260rwkw motor that is responsive that can take a good beating. If I have enough cash maybe I'll look into a tomei motor, although they are expensive !

You are going to struggle to hit that sort of power with a 25 turbo or 2510, even the 2530 IMO.

There is no real need to spend all that money on head work and balancing if, more so if your on a budget.

Grab your stock 20, strap a TD-06 to the side, cams, 550's, Z32 (other supporting mods) and decent tune and you will have near your target power.

If it goes pop then you can buy another motor for $500 and swap everything over or go with the Tomei motor or rebuild

You mentioned doing this on a budget and not being able to afford a 2530 but your talking about forged pistons, rods, head work etc which is going to cost you a mint

[toddlls]

Howdy all, plenty of good advice in here and just one more thing to consider, to possibly have a match in engine to proposed new 2530, big dollars on supporting internals is on the cards. I cant help but think that maybe a rb26dett front cut transplant might be your best option.

Straight up 200+kw atw and twin turbos, newer motor-more parts available, however, to keep within the theme of this thread consider the pipe work from induction thru turbo to inter then back to engine, and dont oversize too far if at all from factory specs and you will be well on the way, also consider the pipe work lengths, greater dist. airflow to travel the greater the lag, 450mm wide bar&plate intercooler instead of standard 600mm may help this also. ARC have some good info on this, ring them and have a chat. Once you have decided upon your turbo look at purchasing from the US, bought-shipped to your door its still heaps cheaper than buying them here + no sales tax- my bro has bought 2 (separate evo2 rocketship builds) and saved nearly $1000 on each unit.

[STATUS]

^^^^wtf?

[PWND]

he was talking about maybe getting a high flow turbo, as he is on a budget, and your suggestion is buying a gtr half cut and doing an engine transplant. and then, on top of that, purchasing upgraded turbo, from the us of all places, and getting them shipped here.....

So I suppose if I asked for tips on upgrading my stereo system, your suggestion would be to purchase a 350z, with bose stereo system, transplant that into my car, and then rip out most of it, and order whole new components from the us. and make a great saving....

[funkymonkey]

lol toddlls, you're on drugs... that's not even in the same realm of being feasible.

I run a HKS 2530 on my standard RB20... most responsive RB20 I've been strapped into. Not a power monster like Brisby's TD06 RB20 upsized combo beast... but starts spooling at 3500 RPM, bolts in with minimal fuss, very streetable in the wet, and best of all, actually passes emissions when wound down to 8PSI