Jump to content
SAU Community

Recommended Posts

my old 32 made 232rwkw stock engine

hks 2530, fcd, cooler, pump, exhaust

the power your after is nothing for a standard internal rb20 most of the guys in this thread a still on stock internals

i've got a very similar setup but am only running around 190rwkw. how much boost did u run to achieve 232rwkw?

Some of you guys have done mods but dont list them all... have any of you guys done over-sized pistons?

...We both agree you need bigger injectors, cams, cam gears and a larger turbo coupled with some form of a standalone or ECU management. The only thing we differ on is that he says I will need over-sized pistons... if not, then I'll need a new block soon after due to the limitations of the stock block. But I dont see anyone doing this.

I am planning to get 300rwhp or 223.88rwkw. It's not quite up with you guys in this thread... but decently good. The following are the mods I have:

RB20DET

Plazmaman intake

stainless steel high mount exhaust mani

t3/t4 (sorry... I bought it and it just came into the shop.. forgot the trim size and all... but power is well enough for 300)

555cc Tomei injectors

JGY Customs RB20DET fuel rail

Sard Type R fuel regulator

Tomei cam gears (256/8.5mm)

Cam gears

HKS SSQV

FMIC

Exhaust (2.5in from turbo the goes to 3in when there's space... right below driver/passenger), no cat

Splitfire coilpacks

GReddy Emanage Ult. using Map sensor

The question is, will I need over-sized pistons? I know location and environment plays a large factor, but theoretically, will I be able to achieve my goal? I'll be posting up my results here in the next couple of months.

For that level of power i think you are perhaps over investing in the engine. Sure, it never hurts to cover as many bases as possible, but for that sort of power the completely std RB20 will walk it in with a decent tune and fuel pump etc

Guys like Legend01, myself, AD4M etc all run completely std motors, though Legend01 had some baby cams with his GT30R. (he now has a stroker RB22, but the engine outlasted the car :ninja: ) The std Rb20 will handle that sort of power without worrying about oversized pistons.

Understand that the pistons will add a few cc of displacement and give you the opportunity to play with compression ratios...so all good things, but worth the expense of stripping down the motor, machining, new head gasket, mod combustion chmabers to suit new larger bore etc etc. Then to only run a small turbo that makes 225rwkws odd. You may as well strap on something like a 2835, 3071R and run 22psi all day everyway and make way more power with the comfort of knowing you have pistons.

I would also quastion how much you get out of the cams on a motor that is making 225rwkws odd. They could work very well, but the std cams have been shown to make good numbers as well. Look at the cam specs of the RB26 and then consider how much smaller the RB20 is and you realise the cams in them arent exactly small to start with.

Also the stock block? I think you will find that using uranium as an octanbe booster and a kpw yield detonator may hurt the turbones of your turbo, perhaps might need higher rate valve springs...but the block will be ok. The things are bvery solid, perhaps the most solid of all RB blocks. The fact they dont make as much power as their larger RB brothers means you will rarely see an RB20 block failure. Of course a rod through the side of the block isnt a sign of a weak block. :rofl: But seriously, you will reach the limits of injectors, rods, pistons etc before blocks start to crack on you.

yeah, i'm surprised that they didn't even include 1 pic of your ugly mug :(

But plently of pics of the 32 and a pretty big story spanning 5 pages - ya gotta be happy with that :O

you're famous! :D

Im stoked...and no my co-driver is famous and an absolute champ for hooking it all up. Truth is i did fark all and not very deserving of the article...but i loved the coverage of the car, and i intentionally hid from the cameras...you are right about ugly mugs :P

That'd be rite, hit one pole a people never let you forget it .Roy is right alot of money spent without a need I made 230rwkw with just an old style to4 so have a check through the rb20 dyno thread there's a lot of intresting info there for the power level you are wanting

well I wont be able to post here for much longer as I just bought a gtr so Im putting the gtst back to stock to sell and my 300rwkw engine might be up for sale soon or i might keep it and put it in the gtr :-)

Cheers Peter

Got your tube to Interloper...baby steps. Will tack it up using my car then trial fit it to yours :no:

cool, i've got my gtst back from centerline so whenever your ready PM me & we'll set a date :wub:

<SNIP>I just bought a gtr so Im putting the gtst back to stock to sell and my 300rwkw engine might be up for sale soon or i might keep it and put it in the gtr :-)

Cheers Peter

I would pay to see that!! :wub::no:

What do you reckon, ROY?

PS May have those cam specs but book in the GTS4 - will try to get it and check soon.

roy dont know the duration but the lift is 8.2mm...measured mine last time i had the covers off...i would say the duration would be around 250 degree...

So are you saying you have an RB20DET-R. ie the version of the RB20 that Nissan homolgated to go Grp A Touring Car racing? Or is yours just a straight up RB20DET?

I understand the std RB30DET has 240° inlet and exhaust with 7.8mm lift. Rb26 run about 8.2mm lift on their exhausts, cant remember the fronts?

i bought the VL with the motor in it off my mate, the inlet manifold had the rb20det-r badge on it n the turbo on it was a fair size not the normal rb20 one, looked like a t4 i measured the cams to see what was in it n i got 8.2mm lift, n theres no markings on them to tell if there aftermarket

it didnt have the tubular stainless manifold tho just a normal 20/25 cast item so i dunno it could be just from a gts-x

inlet on the gtr is 8.5mm lift i think

rb20 red top has 248 degree 7.8mm lift, silvertop is 240 degree 7.8mm lift

The DET-R badge is pretty cheap to get of Yahoo or other suppliers.

Not saying what you have isnt real or anything like that, but its unknown so it could be anything.

For a definitive answer it would need to come from a GTS-R, with the DET-R IMO.

And there is very limited cars in the country. About 8.

got my braided line and return line made up this morning, weld up my cooler piping an exhaust this weekend should be struggling to idle by end of next week in ready for a full tune. hoping for about 300hp for now will see wat she puts out tho. getting butterflies in my stomach 6 months and shes nearly driveable

http://www.tomei-p.co.jp/_2003web-catalogu...haft-specs.html

?

http://www.jdm-option.com/feature/06_10/bu...giri80s_03.html

or this why would he swap in Tomei cams if there big from the factory

Edited by 1400r

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Hi, i’m making a rb25det coil loom for Vag short coil. Can anybody tell me which Ecu signal wire belong to coil number 1 and 2,3,4,5,6? The connecting switch in above pic is 8 wire i think white is for +12v and black for earth.
    • Was there ever a model of the Stagea m35 that didnt have a badge on the grill? I thought I saw that somewhere, some aero edition or something? I cant find it again? davemoto
    • Its a 2002 vr-x four VQ25DET, silver. Coil overs, lowered, polished alloys and sport exhaust. Bit of a project, was sitting in a shed for a while but runs and drives great.
    • I wasn’t able to replicate the sound anymore. It was a one time sound so maybe it was just coincidence but it was like small pebbles being dropped in a coke can.   should I try cleaning the MAF? It could be it’s functioning but dirty? I don’t know.
    • Update 4: Hi all. The car drives again! Haven't driven for long, only to store it in the garage again, but the test drive was successful. The coolant and oil leaks seem to be fixed for now. Temps on the engine were also very good, while moving I never even saw 80C water during the approx. 30 minute drive. Ate up all the coolant in the reservoir though so will have to fill that even more when I go to the car next time. One thing that pisses me off is that the RPM gauge is still f**ked, I even resoldered the board twice and used copper paste on the silly screws that are used as connections. Next time I take it out I'll take apart the board and fit new components, I'll see if I can get a replacement IC for it.  I have an appointment set for 22nd of September for the engine tune to 370hp. Alignment also still needs to be done. My hope is that I can get all the legal stuff over with by the end of this season. Anyone of you have advice regarding intercoolers? Currently there is an APEXI core fitted, one of those weird hybrid ones, 600x270x76. I don't think it's bad but it's not new and now I still have the chance to change it now to legally include it in the paperwork. Only issue is that the only options that would arrive in time are a HKS Type R intercooler or generic Ebay spec intercoolers comparable to a JustJap one. Ideally I'd order a Plazmaman but it takes over a month to receive which would mean making the car legal has to wait until next season. Would love to hear some input on this. Same story for my injectors, the previous owner was a nunce and put ID 1050x on the engine. They work but are obviously not ideal at "normal" power levels. But I don't see a reason to change them unless the tuner says it's necessary. I read online before buying a different exhaust that the top secret style rear diffusers won't fit due to the size of the rear resonators. My buddy and I made it work by slightly "adjusting the shape" of the mounting bracket and making some spacers out of 3d print for the mounting bolts. Fits like a charm. Just putting this here in case someone has this problem. Even the hefty HKS Silent Hi Power rear can fits without hitting anything.
×
×
  • Create New...