Ben's R32 Gtst Build

[sav man]

back to work on the car. Engine is now out, and almost ready to go back into Damo's car.

Engine bay pretty dirty after 5 days of racing

Just some of the bearing I found

And the culprate

[MBS206]

Ouch! Nasty!

So how long until it's all back together and looking pretty?

[Neil]

I hope your dry sumping her this time Ben.

http://www.asroilpans.com/other-oilpan-gallery.html

Cheers

Neil.

[sav man]

na just a good gated sump from asr. i'm not overly thrilled about the extra weight from the extra 2l of oil, so the idea of all the extra weight for 12l of oil and the lines and shit for a dry sump don't make it a good sell..... and i'm being a giant jew.

Funds is the only thing that is stopping it from going again. I've got the new bottom end there ready to go, just need a bash some restrictors in it, and buy a sump.

[Marlin]

Really? Restirctors into an RB20? Have you converted to solid lifters Benny?

Teach me master!?!?!?!

[sav man]

na, still hydro lifters. Only reason I can see a need for solid lifters would be for bigger cams. But I can't see why you'd ever put bigger cams on a 20, as they came over cammed from the factory.

boost and revs=full catch can. There is a guy down here who circuit races a std RB20, and he won't rev past 6500 with the same boost as me (23psi) because he fills the catch can. The amount of oil that is coming out can't be fixed with catch tank tricks. And for the $30-$40 it's going to cost I thought I might as do it. I'm using SydneyKids specs.

[Marlin]

How hard do you rev the thing?

As I said to you at Tugga, I've never had such issues with mine, albeit with my own catch can setup.

[sav man]

to 8000 cause it's still making power there. What boost do you run? on 17-18psi mine was fine, but once I added the extra for the E85 it started pumping it out.

[Marlin]

Oh ok, I don't rev it that hard. And 1.2 pulls me up.

Did you run Tugga with E85? How muchy power it make?

[sav man]

had 263rwkw at the start of the week, 200 - 220rwkw on the new engine (depending on the heat of the engine), then take 5psi of boost off from day 4 onwoods...180kwrw??

E85 did give it a good kick in the pants though. I only tuned the 98ron map on the road, so I don't have a power figure for it.

Edited May 9, 2011 by sav man

[Marlin]

Hmmm yeah ok, well noted

A lot more than mine!

[SimonR32]

I was running 24psi and 8000rpm out of my RB20 for a fair while running about the same power as you...

Not a single drop in my catch can and that car got belted the f**k out of it on a stock motor, so maybe the motor is a little loose or tired?

[Marlin]

I'm at a bit of a loss to be honest.

I'm struggling to understand how .2 bar can make such a difference. Mine doesn't pump into the catch can either, and I'm not exactly easy on it. Even after 5 days of targa there was still no sign that there'd been oil in the can at any time (I have it so it self recovers if it does pump into the can)...... Hell, #1 piston was half melted away and it still wasn't pumping oil! lol

I'm putting mine back together stock internally, and will be interested to see if a little more boost tips it over the edge.

[sav man]

what thickness oil do you run? I was using Motul 8100 5w-40, but i'm going to goto 25w60. Neither engine was compression tested or leak down tested.

The N1 never has this issue, even with 25psi and a big nitto pump.

Edited May 9, 2011 by sav man

[SimonR32]

Castrol Edge 10-60W

Old thumper RB's love it

[sav man]

yeah, so there's 1/2 my problem.

[Marlin]

Castrol Edge 10-60W

Old thumper RB's love it

This! The shit is good

[Marlin]

Solid lifter 26's are a different ketle of fish. We use Kendell (sp.?) straight 60 in Berry's thing.

[Roy]

Yeh Castrol for all RB20 crate motors I have only ever blown oil when there was plenty of limiter action. Bump the limiter a few rpm so i never hit it and no problem. Even the breathing on limiter isnt a common thing, but its about as good as i can do for a reason for the 2-3 times it has happened

[Duncan]

well no oil in the sump....it was presumably in the head and spilling out the breathers. gary's restrictor specs sounds like a good place to start.

what oil pump btw?