The 18R-GTE reference manual ...

[The Witzl]

... and SHROUD the oil pickup!!!

The biggest thing that was highlighted as an issue is the oil pickup is potentially prone to cavitation (pulling air into the pump), hence shrouding it will help immensely.

Below i've shown the two setups that were done for me.
One was originally done for the midsump, when i had the RA28.
Then i sold that, got a KE70, and switched to front sump.

Note the extra shrouding added around the pickup.

Mid sump..... with winged/baffled sump



Front sump pickup





JMR actually suggested that a reversed funnel/cone type of shroud would be even better again to avoid sucking air with the oil.

[S. Lowlux]

Can never have too much oil. Enough is enough but more is always better & never the wrong way to go.
Owen.

[Zammo]

gh[93587hurGWN-94783GHQAB[G Gl;'
ZA erkg
PQW4ON]go]-j0my7k6869748675


sorry had to clean the keyboard people keep posting pics of naked RGs

[JadeEstevez]

^ LOL

Question, I've heard people talking about O-rings with turbo'd engines? O-ring the block and head I think it was, what exactly is this and what does it achieve?

Thanks.

[Zammo]

quick answer to stop head gasket failure at high boost

http://forums.nasioc.com/forums/show....php?t=1165518

[JadeEstevez]

Very interesting, So basically it's extra protection from gasket blowouts for turbo'd engines?

[JustenGT8]

quick answer to stop head gasket failure at high boost

http://forums.nasioc.com/forums/show....php?t=1165518

Old skool and just not required these days....nothing quick about it either. O-ringing is a PITA machining job. You just get the heads done but still a pain and copper HG are a real bitch to get to seal. Copper HG can be handy if you just want a small drop in compression but not something for the average modder.

MHG with head studs will let you run as much boost as you like.

nothing will save you from a bad tune.

[JadeEstevez]

So is MHG metal head gasket? (guessing) Also I've heard of ARP (I think) Head bolts, are they what you are talking about..?

[Sagluren]

yep... 10 char

[JadeEstevez]

Cheers, While your on here dude, do you have any EFI gear for 18RG? I'll PM ya ;P

[JadeEstevez]

Okay, Sorry for hassling on here again =P Need input...

Imagine I have an 18RGTE built to rev to 7500RPM with no problems. If I had the boost kick in at around 4000rpm, would it be a good daily for casual driving but have the balls when you reach 4k? Or is my theory completely wrong XD

Cheers.

[o_man_ra23]

4k is a lot of revs to wait to come on boost. Sounds like you will be putting a big huffer on. A T28 sized turbo should kick in closer to the 2500rpm mark (that's about where my CT26 came on before I bored it out), and should provide plenty of balls. The amount of fuel used would be proportional to the amount of right foot used. If you drive casually, then it will drink casually. Putting a bigger turbo on to push out the boost point isn't a good thing, and is only a decent option if you want a drag racing car, or dyno queen (or want to show off a huge turbo to your mates).

Personally, I would think that for these motors, the T25 or T28 sized turbos would be around the sweet spot for a daily, the former being more driveable, the latter having more go.

[JadeEstevez]

Oh right. I was just under the impression that the farther away the boost is, the more economical =P Sorry. So it'd be like a 6 or 8 Cylinder then, The more your right foot is to the floor, the more fuel you'll go through... Doesn't sound as bad as I was lead to believe.

[Zammo]

yeah go for progresive boost for a daily town car O_man is on the money

and i would just a bit bigger on the turbo if all my driving was done on long traffic free stretches

[Unda Presha]

To o-ring your head is not necessary. I use to run a standard head gasket that was sprayed with copper coat. If I wanted to remove the head I had to get someone each side of the head to work it off. I also use to run 32psi at 7200rpm off the start line and upwards of 40psi over the finish line.

I o-ring my last motor but when I removed the head I had to get the head machined so the o-ring had a fresh cut into the head otherwise if you placed the head back down it may not line up with the existing marks left previously.

I would recommend a standard head gasket sprayed with copper coat and a set of head studs if your going to run any decent boost.