R33 Rb30 Conversion

[Bl4cK32]

i bought a VRS kit for the topend....You can buy a rebuild kit for cheaper than buying single gaskets

[Cubes]

The R32 RB25DE VRS kit is around $275.

It includes all top end gaskets consisting of inlet manifold gasket, plenum gasket, exhaust manifold gasket, rocker cover gaskets and valve stem seals. There may be more thats the most important one off the top of my head.

If I was to buy JUST the valve stem seals from Nissan they wanted $330.. lol

[Cubes]

Courtesy of Darren.

http://www.calaisturbo.com.au/showthread.p...77&page=1&pp=30

A good thread on aftermarket rods for the rb30.

[masTers]

Where did u buy the VRS kit from? Is it available online anywhere?

S

[Bl4cK32]

Nissan dealer in Adelaide. Ring your local dealer to find out.

also has camshaft oil seals...

[retrotec]

  masTers said:

Where did u buy the VRS kit from? Is it available online anywhere?

S

www.greenline.jp or www.nengun.com

[super26]

i have a question for you guys i have an rb30 block and a rb26 head i want to put them together is it possible if it is how do i go about doing it and where do i source the parts to do it thanks alot.

[Cubes]

Masters,

As Bl4ck32 said... Definitely get it from your Nissan dealer.

[GiJOr33]

  super26 said:

i have a question for you guys i have an rb30 block and a rb26 head i want to put them together is it possible if it is how do i go about doing it and where do i source the parts to do it thanks alot.

dude... you've got 99 pages here which pretty much give you the ins and outs of exactly how to do it. There is also a guide floating around (i think Cubes did it). Infact there is a link in his post above this!

Andrew

[Cubes]

I thought I'd update ppls..

I've since noticed a surge issue around 1800rpm.

Loading up say 4th gear at 1500rpm starts to see boost quickly then it goes flat and the turbo sounds strange, if I hold my foot in to it the turbo starts to make a really strange noise (almost a popping noise) then the car begins to jerk around. nasty pasty.

I have never actually held my foot in to it when it has that flat feeling so I haven't heard the popping or felt the jerking before. Never again will I do it. Sounds really bad.

Not to worry, its never really in that zone anyhow.

A good excuse to pull the little terd off.

[Sydneykid]

  Cubes said:

I thought I'd update ppls..

 

I've since noticed a surge issue around 1800rpm.

Loading up say 4th gear at 1500rpm starts to see boost quickly then it goes flat and the turbo sounds strange, if I hold my foot in to it the turbo starts to make a really strange noise (almost a popping noise) then the car begins to jerk around. nasty pasty.

 

I have never actually held my foot in to it when it has that flat feeling so I haven't heard the popping or felt the jerking before. Never again will I do it. Sounds really bad.

 

Not to worry, its never really in that zone anyhow.

A good excuse to pull the little terd off.

Welcome to the world of compressor surge:cheers:

[super26]

  GiJOr33 said:

dude... you've got 99 pages here which pretty much give you the ins and outs of exactly how to do it. There is also a guide floating around (i think Cubes did it). Infact there is a link in his post above this!

Andrew

thanks alot for your help, wha tkind of power have you seen this conversion produce, i am living in the united states and there is not alot of people that do these kind of conversions so i jus wanted to try something new, again thanks alot for your help guys.

[Gradenko]

  super26 said:

thanks alot for your help, wha tkind of power have you seen this conversion produce, i am living in the united states and there is not alot of people that do these kind of conversions so i jus wanted to try something new, again thanks alot for your help guys.

What, you guys had enough of buying every sr20 on the market and driving the price up for the rest of us? Want to move onto something else to overvalue do ya?

(not that i won't sell you a rb30 short motor...)

[masTers]

Thats basic economics, deal with it.

[4R33L]

guys...

if i through a rod in my 25det could i just bolt on a rb30 bottom end?

would like to keep compression same maybe a bit lower...

im running 18psi through standard motor and i know it will fly apart soon, hahahaha

any help would be great

thanx

[retrotec]

This would have to be one of the longest threads I've ever seen and by far the most useful.

Cubes and Sydneykid have been saying for quite some time that cams should become before upgrading the plenom, in particular TOMEI 256 cams. I have a Rb25 head with VVT that is ported and polished (mirror finish).

Has anyone used these cams in a 25/30 and has dyno results to show?, I'm interested at looking at the mid range Hp and Torque.

[Looney_Head]

i am sorry if this has been asked but can you use SR20 pistons when building up a rb30det?

and does anyone know a good place to get rb30e pistons from.

thanks

[masTers]

http://www.modyourcar.com.au/product_info....roducts_id=3661

Or just email sales@modyourcar.com.au as from memory Arias do make forged RB30E pistons.

Being a former sponsor of SAU, Dan and the team will do you a decent price on these!

[Wobbler]

  Looney_Head said:

i am sorry if this has been asked but can you use SR20 pistons when building up a rb30det?

and does anyone know a good place to get rb30e pistons from.

thanks

I've read about using sr20 pistons in them before, Blue r33 with 26 head 30 bottom that was in nzpc a while ago was using them. I'm still not sure why anyone would do this in preference to using forged 30 ones, needing to buy two sets of sr pistons bumps the cost up a bit.

[R32 GTSTT]

A bit of the topic, ive got a rb30det in my R32. Has a stock bottom end with a R32 RB25DE head. Ive got an old school t04 on it with a smaller exhaust housing. Its running out of puff around 300rwhp.

Just wanting to know what turbos u guys are running and the power your making, and how the driveability is with them? Im after something that will produce 450rwhp with a good power band?