Subject: Enchanced oil system
From: Rotary Engine
Date: 9/3/2008, 9:13 PM
To: AAA Put this in the To box


Hi all,
Does anyone have a design for a low-profile adapter block to attach to
the oil filter mount, so a remote filter can be installed? Just curious
to know if I am reinventing the wheel or not.
Thanks much,
John Bell


Some body may have one of those but I don't know who. Jerry Hey could
build it.
Here are some pictures. I'll ask Al Gietzen where he got his.

Paul Lamar


Paul,

I will assume  the Renesis engine oil pump is significantly better
performing than the 1990? single turbo 13B if have.  So how can I
upgrade the oil pump performance in my engine?
One option is to modify and bolt on the Renesis front housing

Second question.   Racing Beat recommends when trying to boost a 13B to
power levels over 300hp that a second oil return line into the block be
added.  Where would this second line be tapped into?


Doug in Japan.


There is nothing wrong with the 13B oil pump.
Especially the 3rd gen model. The 3rd gen turbo  generated 280 HP stock.

You can actually reduce the oil temp by doing away with the right angle
from the pump out to the oil coolers. Some say as much as ten degrees.
Any time you are pumping fluid through a right angle you are adding
heat. I think this
is the right place on the front end housing  but you can tell by
examining a front end housings as the internal oil passages are
obvious. This is as direct out of the oil pump as you can get. Block
off the old front cover outlet. Keep the front oil pressure regulator
in the system.

Don't use a pipe tap on the cast iron block. Too easy to crack the block.
Use a straight thread fitting with o-ring. Keep it the same size as
the ID of the oil cooler plumbing hose.

Paul Lamar


Hi Doug;
Paul has listed many of them.

Some common oil system modifications, most of these are overkill unless
 >8k rpm racing:

eshaft oil jet mod
thermal pellet replacement
front cover oring- replacement/fixes

pressure relief shim
oil pan baffling to help oil/air separation.
oil filter block-off - filter relocation
3rd gen/race pressure regulator

3rd gen/rx8 multi-window bearings
3rd gen irons/oil pump

block normal front cover oil discharge exit
drill and tap front iron main bearing feed tap
drill and tap a new, straight out oil discharge
oil pump passage modification to a smoothed kidney shape

dry sump setup

remove the oil filter screen (you must ensure that NOTHING solid will be
sucked into the pump) add a bell mouth to the oil pickup tube

align/enlarge bearing window to match galleries
gallery enlargement - 13B engines do not have as much meat to bore out
the oil galleries as the 12a

Radical oil pedestal removal to shrink the engine.

Probably forgetting a few mods...

Here are a few pics of some common high power mods on nopistons.com:
http://www.nopistons.com/forums/Oil-Pump-Mods-t51440.html
Do a few searches on oil system modifications.  Lynn and others have
provided a lot of info/pics.

Cheers
Cary




Paul my test engine is a 2nd gen turbo.

Cary

Thanks for the info, and direction. I just noticed some posts that stated
that my 2nd gen. housing dowel pin areas are not as robust as the
following 13B REW third gen housings. Are  they speaking about the Al.
rotor housings? I think this was a problem with race engines producing
over 400 hp.  and  more torque.

Doug in Japan.

It is the cast iron but that was a 280 HP turbo engine. How much power are you
talking about?

Paul Lamar


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