| Usually, to give con-rod buckling strength and light weight character at the same time, H-beam or I-beam profile is applied. And the choice of the profile is depending on its purpose, use environment, production cost and quantity. We applied H-beam profile for the connecting rod of NISSAN RB, SR, CA, VG engine and succeeded in gaining high buckling strength while reducing the weight.
We produced con-rod's forging mold with a main bearing hole in its large end, so as to the 'metal flow' runs along con-rod's entire body. And with a use of special material, we succeeded in producing con-rod with extreme intensity and durability.
High durable con-rod, which is designed and made with special forging mold can keep its original shape from distortion even at the high RPM that more than 1 ton of pressure concerns.
An extra oil orifice hole to further increase lubrication efficiency!
To provide lubrication oil to the bush in small end, instead of sending oil through the long hole inside the rod from the large end, we assembled tapered oil hole at the top of the small end so that the oil will drip during pistonﾕs compressing cycle. In this way the strength of the rod won't be spoiled.
Specs.
|
Type |
|
|
SR20 |
RB26/25 |
RB28 |
VQ35 |
|
Con-rod |
Length |
L(mm) |
136.3 |
121.5 |
119.5 |
144.2 |
|
L.Diam.xLength |
DxB(mm) |
φ51x22.8 |
φ51x21.8 |
φ51x21.8 |
φ55x20.8 |
|
S.Diam.xLength
(Bush Inner Cir.) |
d x b
(mm) |
φ22x22.8 |
φ21x21.8
|
φ21x21.8 |
φ22x20.8 |
|
Material |
|
SNCM 439 |
SNCM 439 |
SNCM 439 |
SNCM 439 |
|
Con-rod
bolt |
Bolt size |
|
ARP3/8-24 |
ARP3/8-24 |
ARP3/8-24 |
ARP3/8-24 |
|
Hight under Neck |
(mm) |
40 |
40 |
40 |
40 |
|
Con-rod
bearing |
Inner Circum. |
(mm) |
φ48 |
φ48 |
φ48 |
φ52 |
|
Bearing width |
(mm) |
17 * |
17 |
17 |
16.5 | *Factory metal are unusable for N14GTi-R Pulsar
|
Type |
|
|
4G63 |
EJ20 |
3SGT |
1JZ |
2JZ |
|
Con-rod |
Length |
L(mm) |
150 |
147 |
130.5 |
138 |
125.25 |
142 |
|
L.Diam.xLength |
DxB(mm) |
φ48x26.4 |
φ48x26.4 |
φ55x21.4 |
φ51x27 |
φ55x26.2 |
φ55x26.2 |
|
S.Diam.xLength
(Bush Inner Cir.) |
d x b
(mm) |
φ22x23 |
φ22x23 |
φ23x21.4 |
φ22x22
|
φ22x26.2 |
φ22x26.2 |
|
Material |
|
SNCM 439 |
SNCM 439 |
SNCM 439 |
SNCM 439 |
SNCM 439 |
SNCM 439 |
|
Con-rod
bolt |
Bolt size |
|
ARP3/8-24 |
ARP3/8-24 |
ARP3/8-24 |
ARP3/8-24 |
ARP3/8-24 |
ARP3/8-24 |
|
Hight under Neck |
(mm) |
40 |
40 |
40 |
40 |
40 |
40 |
|
Con-rod
bearing |
Inner Circum. |
(mm) |
φ45 |
φ45 |
φ52 |
φ48 |
φ52 |
φ52 |
|
Bearing width |
(mm) |
21 |
21 |
16.5 |
21 |
19 |
19 |
|
