My 25/30 Build Plan

[70shw]

Hey guys, have decided to do an rb25/30 and put it in my r32.

Here what I have planned so far:

Head port and polish

Adjustable cam gears

Not sure on head gasket at the moment

Probably 700cc minimum injectors

Cp pistons cr 9.1:0

Spool rods

Acl race series bearings

Arp head stud bolts

Rb30 water pump

Rb26 oil pump or nitto (if it doesnt cost an arm and a leg)

Gt35/40 .82r

38mm wastgate and screamer pipe

Acid dip, cracktest etc for block and head

Balance etc crankshaft

Not sure what computer to use

Any other HELPFUL information would be muchly appreciated

P. S hoping for at least 350rwkw

[KiwiRS4T]

Nistune, PFC or Link/Vipec will all do.

Check the RB30 dyno results thread to see if 38mm wastegate will be big enough.

Screamer pipe is illegal most places.

Make sure you enable VCT

If you're going to track it get a bigger & baffled sump.

[N1GTR]

ALL info you will need is already on these forums.

Invest some time, search and read it

[NYTSKY]

Ported head not really needed, could spend the money elsewhere.

9.0:1 Cps are a custom piston and will need to be ordered.

I think the 38mm gate will be too small, safe bet is a Tial 44mm.

Dont worry about cam gears either. Just stick with VCT.

If E85 is an option id say 1000cc injectors would be ideal. I have a set for sale if you are interested.

I assume you have not contacted anyone to do the work for you yet as most of your questions would have been answered already.

[70shw]

Ok thanks guys, I'm going to get at least a 44mm wastegate now. And yes I'm going to keep the VCT so yer the cam gears are now off the list. No head work lol and I'll look Round And research about the computer. Ok thanks for the advice about the injectors as well, I will def be going bigger now. Yer the pistons I'm going to get through spool imports. No I haven't contacted anyone yet, that's on my list of things to do this week. Any recommendations for places in or around Ipswich?

[zebra]

Signature Performance is in Ipswich from memory, and the have a bloody quick R33 gtst

As Dave said, Ported head is not really needed, depends on how much over 350rwkws you want.

The standard head and cams are good for around 370-380rwks

[NYTSKY]

Standard head and poncams are good for over 500rwkw

[70shw]

THanks for the advice. I'm googling poncams now