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When the vehicle is on the corner or the time of acceleration and deceleration, oil in the oil pan will lean or jump. To prevent these to happen, baffle is assembled in the pan of stock engine. Though, in terms of sports driving, it is almost impossible to achieve its purpose because the size of the baffle is restricted to cut down the production cost. If oil leans to one side largely, air goes in to the pipe instead of oil and interrupts continuous oil lubrication. Without oil, metal surface contact directly each other, then the temperature rises explosively and causing worn out if its lasts long.
On the other hand, Tomei movable baffle plate is made to achieve stable oil lubrication at any situations such as curving, acceleration, and deceleration. And it will secure the improvement of engine performance from street use to the drag racing or circuit run.
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lower part
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lower assembled
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upper assembled
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Newly developed rubber valve
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Product |
Model |
Engine code |
Part number |
MSRP |
Note |
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Oil Pan Baffle Plate |
BNR32
BCNR33
BNR34
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RB26DETT |
193034 |
$200.00 |
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OVERSIZED OIL PAN FOR RB26 (TUNING SERVICE) |
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Compare to the SR20, oil delivery of RB26 must be done much more carefully because of its structure. However, RB26's oil pan is also used as front diff case and it has complicated shape. Since it is hard to make bolt-on kit, we take trade-inn modification service. IN our modification, while its total capacity is enlarged, height of oil pan is set equal as engine member in order to keep it from hitting damage. It is highly recommended to use this with RB26 oversize oil pump. |
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Product |
Model |
Engine code |
Part number |
MSRP |
Note |
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Oversize Oil Pan for RB26
(Tuning Service) |
BNR32
BCNR33
BNR34
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RB26DETT |
34107010 |
$3,170.00 |
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*STD Oil Pan must be traded-in to purchas.
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The RB26DETT engine is often plagued with oil lubrication issues during circuit and drag racing events which are the main causes of most RB26 engine failures. This problem
causes the main bearings to abnormally wear out from the lack of oil pressure. The stock pump is not capable of supplying the adequate amount of oil to maintain the right oil
pressures at extreme engine speeds that the high powered monster RB26 performance engines require. Another weak point is that the stock pumps gear is made from weak
sintered metal and this often breaks when going for bigger power and higher engine speeds and when this little piece gives out can cause an instant loss of your engine. The
TOMEI RB26 oil pump has a larger pump gear made of high strength materials to supply a larger flow rate to the engine and it has an external oil pressure adjuster as well.
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Product |
Model |
Engine code |
Part number |
MSRP |
Note |
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RB26 Oversize Oil Pump |
BNR32
BCNR33
BNR34
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RB26DETT |
193035 |
$1,840.00 |
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The Orifice controls the amount of oil flow that is delivered to the head to lubricate the parts in the cylinder head and to cool down the engine assembly. However the stock oil-gallery orifice has a hole that is too large which allows too much oil to be delivered to the cylinder head which will cause the problems as listed below.
(1) Too much blow-by Gas,
(2) Blowing engine oil,
(3) Leaking oil through the valve guides,
(4) Insufficient oil delivery to the crank journal,
(5) Allows air pockets into the system from when the oil pan is under horizontal G-Forces.
The TOMEI oil gallery orifice was designed from the experience and data we had obtained from the development of our N1 endurance and drag racing engines. By restricting the
diameter of the orifice to φ1.5mm (Normal is φ2.0mm) we succeeded in securing enough lubrication to the camshaft and valve while maintaining the correct amount of oil in the
oil pan which resolved the common problems. (For added Blow by prevention, we recommend using the TOMEI 3D Profile pistons.)
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Product |
Model |
Engine code |
Part number |
MSRP |
Note |
Oil Gallery Orifice |
BNR32
BCNR33
BNR34 |
RB26DETT |
191071 |
$7.00 |
ø1.5
・Combine with STD orifice to use
・For RB25&20, solid type engines ONLY
(not to be used on lash type RB20 & RB25 engines) |
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In
drifting, circuit running
or drag racing, the higher
G forces of both vertical
and horizintal will cause
bad oil circulation due
to the oil pickup not
having adequate access
to oil during cornering
forces. This can cause
engine failure if the
lack of oil is a constant
problem. We have developed
this oversized oil pan
for the SR20 and used
it on our own N2 series
Silvia race car in the
past. Race proven with
an extra 600cc increased
capacity while not affecting
the distance to the ground.
With the added internal
swing baffle plates will
help with improved oil
circulation. |
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2
piece partition swing
plate design helps
with the stable oil
supply. |
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OVERSIZED OIL PAN FOR SR20
| Product |
Application |
Engine
Code |
Parts
No. |
MSRP
(USD |
| SR20Oversized
Oil Pan |
(R)PS13/S14/S15 |
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11111R520 |
$390.00 |
| Note |
*600cc
Increased Capacity
*Has Oil Temp Sensor
Attachment （PT1/8)
*Non compatible
with N14 Pulsar
engines. |
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The
SR20 engine's factory
oil block tends to fail
due to the weak oil filter
sensor screw which often
breaks. We here at TOMEI
had found the problem
during professional racing
over a decade ago, so
we designed & produced
this upgrade oil block
which solved the problem.
We had later discountinued
this product after the
end for the N2 series
race but due to popular
demand we had to bring
it back into production
with a new revived design.
Now being lighter than
before with ports for
oil temperature and oil
pressure sensors. The
failure in the oil block
can lead to engine failure
so this is an absolute
must have upgrade to protect
your investment. Especially
with vehicles running
a sandwich block or similar
the oil cooler can fail
at times so you have to
take added precautions.
Oil Block for
N2
| Product |
Application |
Engine
Code |
Parts
No. |
MSRP
(USD) |
| N2
Oil
Block |
(R)PS13/
S14/S15 |
SR20DE(T) |
193068 |
$120.00 |
| Note |
* Fabricated from
high tenstile aluminium
* Super Light Weight
* Anodized in gold
color.
* ♯10 size oil inlet
and outlet
* Can use the OEM
oil pressure sensor
connector PT1/8
* Can use the OEM
oil temperature
sensor connector
PT1/8 |
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One of the main causes of engine problems on an EJ20 are the bearings. The majority of the causes of these issues are due to the lack of motor oil in the oil pan (sump) and passages. Also, the lack of rigidity in the crank case is also another problem facing this engine design. Under extensive research, Tomei Powered which decided to develop a product that securely remedies these problems. This baffle stiffener will help strengthen the left and right side of the crankcase to help provide the added support with its dual structural design. The rubber baffle design greatly aids the regulation of the oil supply. This gives added control to reduce blowby for EJ20 owners who use their cars for high performance driving.
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OEM setup with the
oil supply problems.
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With Baffle Stiffener
fitted. |
Baffle Stiffener
For EJ20 & EJ25
| Application |
Parts
No. |
MSRP
(USD) |
| EJ20#
EJ25# |
193036 |
$370.00 |
| Notes |
* Baffle Stiffener
(comes in 2 pieces).
* O Ring & Bolts
included. |
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One
of the seldom-weak points
of the 4G63 is the rise
in oil temperature. It
is seen more often in
circuit driving. The EVO
uses a thermo switch that
will work when the temperature
gets around 85ｰC (approx
185ｰF). Yet when the oil
temp is low, it will restrict
the oil flow to the oil
cooler constantly regardless
of the temperature. Still
it is easy to revert back
to the OEM switch for
winter use to prevent
over cooling.
Oil Thermostat
Killer For 4G63
| Product |
Application |
Engine
Code |
Parts
No. |
MSRP
(USD) |
| 4G63
Oil Thermo Killer |
EVO
IV-IX |
4G63 |
193040 |
$60.00 |
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High
Performance Oil Pump for
L6, L4 Engines
Product |
Application |
Engine
Code |
Parts
No. |
MSRP
(USD) |
L
Series Large Oil
Pump |
Uprated
relief valve for
higher oil pressure
(relief valve
opening pressure
6kg/cm) |
L6
L4 |
15010R500 |
$200.00 |
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