Build Up Plan! Rb25det

[Nick378]

Hi, i just pulled out my rb25det and i need a rebuild!

I need advice on part i could use, to have the best internals possibles considering my budget.

I have around 3000 to do it. It's an average I could spend 4000 I don't know.. (In CAD)

I'll surely bore to 87mm.

Was thinking about eagle rods with arp bolts.

Cp piston 8,5:1 compression.

1,3 mm headgasket

Arp headstud

Acl crank bearing and rod bearing

N1 oil and water pump

I'm willing to take any idea!

Thx a lot.

Is a stroker kit possible??

[R31Nismoid]

$4000 and a stroker in the RB25 block - nope. Its pretty much jap kit territory and you start above your max price before it's even in the country

What is the overall use of the car?

How much power are you after etc etc?

[Nick378]

Ok, for now, I'm doing 450 RWhp but i think i maxed out the turbo's capacity (t3-t04e)

My goal is to run a reliable 460rwhp and i might change the turbo for a gt40r next year to get 600rwhp or so.

So i need a bottom end that can handle that much power.

Maybe rb30?

I'm going to take the car at the track but it's more a street car than anything else..

[Nick378]

Well I just ran into a sick deal!

CP Pistons 8,5:1

Eagles Rods with ARP bolts on

Calico Main & Rod bearing

N1 oil pump

N1 water pump

For 1850 USD + tax!

I'll add to this:

Tomei headgasket (thickness yet unknown...)

OEM Timing belt

OEM full gasket kit

New Valves springs

ARP Main stud kit

and maybe i'll throw in some cam...

What do you think?

[R31Nismoid]

Are they new?

And also - would have helped if you told us you were US to start...

$4000 US is a lot more than $4000 AUD...

[Nick378]

Are they new?

And also - would have helped if you told us you were US to start...

$4000 US is a lot more than $4000 AUD...

Sorry I have'nt told you before, actually I'm from Canada.

Yep everything is new! Got them from an import shop in Calgary!

[aDrew_C]

If your car is mainly a street car then why do you want lower compression? Even though you have a pretty old technology turbo right now I'd still stick with 9:1. That means not going overboard on the headgasket thickness too.

[Nick378]

If your car is mainly a street car then why do you want lower compression? Even though you have a pretty old technology turbo right now I'd still stick with 9:1. That means not going overboard on the headgasket thickness too.

Actually, I might change for a GT3582R cause I have some issue with mine.

If the piston drop the compression to 8,5:1, what headgasket's thickness should I get?

[aDrew_C]

If the pistons lower the cr with the standard headgasket then no headgasket will be thin enough to raise the cp. You will have to have the block decked with the cr of the pistons and thickness of the headgasket in mind. Have to look at the deal you are getting on these pistons; is worth it really worth it over some 9:1 pistons?

A GT3582R is a very efficient turbo and with a well built engine you shouldn't have any problem pushing 1.5bar with 9:1 compression.

[crack]

Well I just ran into a sick deal!

CP Pistons 8,5:1

Eagles Rods with ARP bolts on

Calico Main & Rod bearing

N1 oil pump

N1 water pump

For 1850 USD + tax!

I'll add to this:

Tomei headgasket (thickness yet unknown...)

OEM Timing belt

OEM full gasket kit

New Valves springs

ARP Main stud kit

and maybe i'll throw in some cam...

What do you think?

whats the name of the shop. link to website?

[Nick378]

It's a local shop here in Canada. They don't have any website I think. If so, I don't know about it!

[NickR33]

don't forget labour & machining costs:)

[Nick378]

don't forget labour & machining costs:)

Yep I guess it will be around 600$ USD in machining and no labour since I'm doing it by myself.

[Girorostar]

If your goal is to reach 600 rwhp next year i would suggest getting a greddy/hks/tomei timing belt instead of the oem timing belt. The OEM timing belt wont hold that much power.