Jump to content
SAU Community

Inner West Crew Whoretown (toowong/st Lucia/kenmore/indooroopilly And Sometimes Sunnybank?)


Recommended Posts

cool thanks,

trying to get the parts list together so i can build this damn 25/30 there was just a couple things in my head that i wanted to sort out before i finalised the parts list.

cool thanks,

trying to get the parts list together so i can build this damn 25/30 there was just a couple things in my head that i wanted to sort out before i finalised the parts list.

Knowing the RB25 comp ratio probably won't help you much.

What pistons and gasket thickness are you going to be using?

gasket i haven't worked out, same with pistons, i was going to keep the standard ones, i want my compression to be around the 8.5 - 8.8 mark, only really want to run 12psi boost. I know i can get that with a smaller turbo but if plans ever change down the line i can alway squeeze more from that turbo rather than buying a new one.

I really need another engine stand, bloody vq is hogging the other one

gasket i haven't worked out, same with pistons, i was going to keep the standard ones, i want my compression to be around the 8.5 - 8.8 mark, only really want to run 12psi boost. I know i can get that with a smaller turbo but if plans ever change down the line i can alway squeeze more from that turbo rather than buying a new one.

I really need another engine stand, bloody vq is hogging the other one

What's the point of going a dirty 30 if you aren't going to do it properly?

Cast pistons and 12psi on a 35 will net you around 300-320rwhp. Nothing that can't be done on a stock 25 with less mucking around.

true, but i want to muck around, i have been wanting to build one for a long time now, i have a spare good running rb30e here, and i got a 25 head cheap, so why not?

yer true, i could go forged pistons, but thats another $1000 - $2000 for pistons then i might aswell replace the rods. If i dropped a 25 into it i would be following much the same process with the mods. Plus there is too many rb25 r31's around. R31's need 30 love

i dunno never watched it fully, think i fell asleep...

in other news, monday morning will be fun, testing a car for a misfire at 6500rpm on the icb anyone? i'll get the boss to drive it

gasket i haven't worked out, same with pistons, i was going to keep the standard ones, i want my compression to be around the 8.5 - 8.8 mark, only really want to run 12psi boost. I know i can get that with a smaller turbo but if plans ever change down the line i can alway squeeze more from that turbo rather than buying a new one.

I really need another engine stand, bloody vq is hogging the other one

you can borrow mine after my gf's bro is finished, he should be done... :P

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



  • Latest Posts

    • This was a huge help.  We followed the steps,  although shifting into 2nd was actually into 3rd for us,  and 1st was into 2nd ( steps 9 and 11) .  The long flash was the 4th flash.  So shift solenoid A is possibly the culprit.  Is this inside the transmission itself? Or is it accessible by just front the pan? Or is it bolted to the outside of the transmission?  Thanos for your help everyone
    • Can you enlighten me on your best practice regarding these hoses? I don't wanna make the same mistake if you already got a better solution.
    • I have some silicon hoses already, for example engine to watercooler. But yeah, I get the sentiment. The lower intercooler silicon hose is drippy too, despite not being very old. Does anyone except Nismo make these same lines out of rubber? Long term I think they'd be the better replacement, especially since the car won't live as hard a life anymore as in the past nor be driven as often.
    • I know most issues are just age related. But for example the turbo oil drains, there is dash adapters for these and you can just make a braided teflon line for them and (probably) never have them leak again. Also not terribly expensive. Can you even get the factory hardlines from new? Or are they repairable if they break?
    • I know it'd be much much easier with the tool. I hope I can find one that won't take 3 weeks to get to me an isn't a "Asian models kit" that has tons of (to me) useless adapters for a load of cash.   It's a summer project/fun car. I do wanna enjoy it, without endless downtime over and over. So yeah I would even go and buy an engine crane + stand to save myself the trouble of hard to reach or unreachable places going bad later on. Would also be a good opportunity to put on a Fluidamper, renew the mains seals and stuff like that. I have some money on the side that I can use for that, what I wouldn't want to or be able to do is let everything be done by a shop or have my engine completely rebuild right now. I intend to do most of the "doable" jobs myself. Pulling an engine can't be that hard, can it?
×
×
  • Create New...