Adding Rb26 Windage Trays To Rb30 Girdle......

[Ramius83]

I am coming down to the nitty gritty part of this build. I have just about finished the dry sump RB26 oil pan. But, I have a question for all you RB30 guys......

Would it be beneficial in adding the RB26 girdle windage trays to the RB30 girdle? Has anyone done this? Would this be a bad thing or not?. I'm thinking that with the RB26 oil pan bolted to the RB30 block, the windage properties would be nearly the same as the RB26. So I thought about drilling and tapping the RB30 girdle for the trays.

What do you guys think?

[Shoota_77]

Is it as important seing you're running dry sump? Won't be anywhere near as much oil in the sump obviously.

Certainly can't hurt though, might help the oil get back to the pickup point quicker.

Shouldn't be too hard to do. Might just need to drill a few new holes and possibly space the tray to the girdle in a few spots if it doesn't sit flat at the mounting points.

[luke gtr]

I havnt.

yet.

I want to though.

when I pull it back apart for better rod bolts, will be adding them.

while its apart, why wouldnt you?

[GTRPSI]

Ive done it on my RB30 girdle, not hard to do, mark the position of the holes, drill and then tap the threads into the girdle, im surprised more people dont take advantage of the wind-age trays.

[luke gtr]

Ive done it on my RB30 girdle, not hard to do, mark the position of the holes, drill and then tap the threads into the girdle, im surprised more people dont take advantage of the wind-age trays.

how is this holding up?

My engine machinist didn't want to do it.

So, I started (front tray on).

Speaking to a colleague who said it can weaken the girdle.

Just after some piece of mind.

Although, it's kind of too late to turn back now.

[Shoota_77]

In my opinion no ways there is enough load put on the girdle to cause any problems. All the linking sections of the girdle does is prevents fore and aft movement. A few 6mm holes are gunna do f'all to affect that.

[luke gtr]

I also thought it may also square up and brace the lower section.

would love more input.

[GTRPSI]

It ties the bottom end main caps together exactly in the same way as the drilled factory RB26 one does, no weaker, no reported cracks of failures what so ever.

The rails only take fore and aft stress to tie the caps together.

A pic where you can see part of mine done....