Rb26 Windage Trays In Rb30 Conversion

[dorifticon]

very interesting! now, what about the windage tray (trays)

I see someone has already asked this but I couldn't find a response. Basically, I have my RB30 bottom end back from the workshop, and it's running the RB30 girdle which has no provision for a windage tray. It seems like it would be *possible* to drill and tap the girdle to fit the windage tray but I just wanted to know whether people are bothering to do this or whether people are running their RB30 setups without the trays (is it even possible? Does it foul on the crank?)

All things being equal I'd probably like to run them but this would entail dissassembling the entire bottom end in order to drill and tap the girdle (otherwise I would be risking swarf going into my bottom end).

Any advice (particularly on the risks of NOT running the windage tray) greatly appreciated.

Andrew

[r33_racer]

No risk. Rb30's in standard form only have a basic scraper/windage tray built into the sump. The gtr windage tray could be bolted to the girdle no problem, just as you have suggested. The only drama may be the extra stroke length of the rb30. You would have to dummy assemble and check clearances and space down the tray/s accordingly.

For where you are atm, I wouldnt worry or bother with it.

[fletch rb30]

i never bothered. running the 4wd sump.

I know a few guys that have added the awd scraper to the rb30 girdle.

IMO it does not matter that much unless you are revving it pretty high

[proengines]

You can fit them but you do need to space them down to clear the crank throws and obviously spotface and drill & tap the girdle. Not something you'd do once the engine is assembled though.

I haven't seen any problems in engines not using them, it's probably a lot of work for no real benefit.

[dorifticon]

Thanks for all the replies.

Just to be clear, it's a fully balanced and blueprinted, forged rb30 build - the workshop says it is fine up to 8,500 rpm, so it will be revving a bit higher than your standard VL commodore, for example. Valve train and turbos definitely won't be holding back the revs.

I am currently tossing up ideas to mount something into the sump itself with a bracket of some kind but am concerned it may not be secure enough to handle vibrations etc.