Jump to content
SAU Community

Recommended Posts

A 26/30 will be less laggy then any other rb, if you could buy a "new" rb30e and put a "new" rb25 head on it, and make 160-200rwkw, there is no reason it wouldnt last 300,000 if the tune was ok. Once you want big power, it changes, but only if you start stressing things beyond their capabilities, ther are a couple of 300rwkw rb30det's on here that have lasted longer than 60,000 and showing no signs of distress. If you have 400rwkw and thrash it every day, then it will last as long as an rb25 with the same power.

Consider I bought a previously unopened RB30 bottom end. All stock. Then I got a near new RB26 head, still with stickers on the heads lower surface and had been in plastic for a while with almost no carbon in the combustion chamber. Built with H beam rods and 9:1 comp pistons, without receiving the boost it makes on the twins (basically kept atmo for run in) it makes 160rwkw.

What do stock 25's make? Wait till this baby gets 18psi.......

Lag? I don't think so!

As with any question you might ask without giving enough detail. It depends. Put a V8 Mack truck turbo on and yes it will lag, but the right turbos for the application then it will be lethal.

Consider I bought a previously unopened RB30 bottom end. All stock. Then I got a near new RB26 head, still with stickers on the heads lower surface and had been in plastic for a while with almost no carbon in the combustion chamber. Built with H beam rods and 9:1 comp pistons, without receiving the boost it makes on the twins (basically kept atmo for run in) it makes 160rwkw.

Hi Geoff, do you remember what sort of revs yielded the 160 rwkw?

Cheers

I'm not reading 260 pages worth of stuff, when from what I've read so far of it (about 10-15 pages in) is mainly people going "OMG, that's great, I plan to do that too"

It seems more of an RB30 chatter then a technical guide

yes you just run an external oil feed to the gallery from your OPS feed. T piece from either the ally heat exchanger or from the bunged hole in the block and run it to a newly tapped hole in the front inlet side of the head where you can see a tube like casting running up the head to the inlet camshaft area. Make the fitting thats in the head feeding the gallery to have about the same size hole as the std feed from the rb25 block which i think is something like 1.6mm....but im probably wrong.

Though this is probably the biggest thread in the tech section, it would definetely have the most tech info available. Sometimes the chatter is techinical :thumbsup:

Hi Geoff, do you remember what sort of revs yielded the 160 rwkw?

Cheers

Mark I don't really remember. I just asked him to tune it to start and run at 60, 80 and 100 so I could run it in.

I'll be getting the bov and boost control sorted so I can have the tune redone soon. Should be interesting. Then it's time to throw it back at the track.

BTW I'm on skype, geoff.williams89 if you feel the need to chat sometime.

Hey Geoff

Did you get the cam gears installed ?

I got the 3.5 inch exhaust done last week, just finished installing a new 10mm fuel line, with new outlet on the tank cap today also.

So booking a tune in as soon as Matts available.

Trevor at custom exhaust specialists said I should pick up 20 - 30 rwhp on same boost with the new exhaust as the old 3 inch would have been maxed out. So looking at over 500 rwhp on 18 psi. But I want to tune it until it pings on 100 ron and then back her off a bit.

Will keep you posted.

PS. Hope your gonna blow or turbo the XR8, otherwise you are going to be very disappointed with the NA V8 :-)

No I've been busy since moving into the new place but maybe later this week.

The Falcon will stay pretty stock. If I want jollies that's what the GTR and racecar are for. Never try to make a silk purse from a sows ear. The ute is for towing a boat and racecar and work.

That thing of yours just keeps getting better mate.

Thats right - I forgot about the boat. Now I understand.

No I've been busy since moving into the new place but maybe later this week.

The Falcon will stay pretty stock. If I want jollies that's what the GTR and racecar are for. Never try to make a silk purse from a sows ear. The ute is for towing a boat and racecar and work.

That thing of yours just keeps getting better mate.

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

    • All I can say Duncan is good luck and I hope that Neil did not run any E85 in Cheryl. I have recently experienced the full spectrum of fuel tank issues in my R33's that had been caused by E85 and contaminated fuel. When you take the cover off the top of the tank and have a look inside you will get an understanding of how easy it will be. Best case situation is clean fuel with minimal contamination. My GTR was like this and it was a very simple operation to just grab the fuel pump carrier bracket and slide it up and out of the tank. My three GTS_T's had different levels of fuel contamination that was probably caused by E85 in the fuel.  In the worst case all of the metal components in the tank had rusted to the point where there were pieces of rusted metal swirling around in the tank. This required the removal of the exhaust, the tailshaft, the complete rear cradle and the fuel tank. The components in the tank were that rusted that it took days to get the fuel pump carrier and the mounting brackets out of the tank. When the tank was finally cleaned, everything inside the tank had to be replaced. With the tank all back together I could then reinstall it in the car along with everything else that had to come out. Good luck and I hope that you find a clean tank.    
    • It is a two door. It is black and also still has the OEM wheels and stereo. Exact model would be KR_R32RGFEL_SS According to GTR-Registry.com is a 2 Door Coupe; RB20DE; 2WD no HICAS; MT.F5; (11L) Projector Headlamps and Fog Lights; (12_) Electronic Active Full Auto Air Con (Climate Control); (13-14SS) V Selection -- Which seems to be accurate description of my variant. Will try to upload a few pictures soon. The OEM wheels look like the below image. Image is taken from the goo-net-exchange website.  
    • Time: Saturday 18th January - 9am -10:30am Where:  Cafe By Lamanna 10 English St, Essendon Fields VIC 3041  - https://g.co/kgs/mhVKvAB Registration: So we can give the cafe a heads up on rough booking numbers please rsvp below Registration Link: https://forms.gle/wPtfj9Gp8bvCiouo8
    • Welcome Gabriel. At least your car has a glorious RB and not the shitty CA18. As MBS206 mentioned all the good bits can be added later. Two doors or four?
    • And half of them have been converted to turbos.
×
×
  • Create New...