I BEAM CONNECTING ROD

JUN connecting rod adopted I-beam form in order to pursue lightness and strength. Because the rod is made by shaving completely, it can design in the form with no futile, and can manufacture in suitable weight which does not need balancing each rods. The big end has good shape which restrains deformation with dispersing stress for preventing the close-in phenomenon cause of welding the rod bearing. And, connecting rod bolts adopt high tension bolts manufactured by ARP because the part of the cap is made strong more. We pursue high-quality products by manufacturing in-house until it reaches manufacture from the design.

POINTS

The Meaning of Strengthening Connecting Rod

Connecting rod is the parts which are easy to be made light of as unexpected in engine parts. However, it is also one of the most important parts. The high output of a turbo engine in recent years is surprised, and it is becoming impossible to already correspond with a stock connecting rod. As for the high response which is the maximum charm of NA engine, the weight of connecting rod influences response greatly. In addition, whole balance by the identity of a weight position, burden reduction of the crank metal by reduction of big end weight, as for a connecting rod, many performances are required.

The Strength of Big End

Many cases as a trouble of connecting rod, is touching unequally of the metal or scorching. As the cause, when pulling tension force by the inertia weight of a piston affects connecting rod, a big end causes transformation as shown in the right figure. It is considered as a cause that the joint of connecting rod cap can not keep required clearance.

The JUN SUPER CONNECTING ROD prevents the transformation at the time of high rotation by correcting the form of a big end and raising strength, and keeps clearance.

  • CONNECTING ROD
  • CONNECTING ROD
  • CONNECTING ROD

CLOSE IN PHENOMENON

CLOSE IN PHENOMENON

The connecting rod is pulled in the direction of length in response to the influence of piston inertia weight, and a big end is transformed. Since clearance is not kept, scorching the metal will be caused.

PRODUCT LIST

ENGINE ROD SET PIECE ROD BOLT
PIECE
REMARKS
PART # MSRP(yen) PART # MSRP(yen)
NISSAN
VR38DETT 1002M-N009JPY210,6001002M-N109JPY36,720 Cannot use together with a stock piston
VQ35DE 1002M-N006JPY210,6001002M-N106JPY36,7201012M-001 
VQ35DE(for 3.8L)1002M-N005JPY259,2001002M-N105JPY44,2801012M-001Exclusive use of JUN 3.8L crank shaft
VG30DETT 1002M-N003JPY192,2401002M-N103JPY33,4801012M-001 
RB26DETT 1002M-N001JPY192,2401002M-N101JPY33,4801012M-001 
S20 1002M-N012JPY203,0401002M-N112JPY34,5601012M-001 
SR20DET 1002M-N002JPY128,7361002M-N102JPY33,4801012M-001*1
TOYOTA
2JZ-GTE 1002M-T005JPY210,6001002M-T105JPY36,7201012M-001 
1JZ-GTE 1002M-T007JPY210,6001002M-T107JPY36,7201012M-001 
FA20 1002M-F003JPY142,5601002M-F103JPY37,8001012M-001Cannot use together with a stock piston
3S-GTE 1002M-T002JPY142,5601002M-T103JPY37,8001012M-001 
3S-GTE(for 2.2L)1002M-T003JPY142,5601002M-T101JPY37,8001012M-001Exclusive use of JUN 2.2L custom kit
4A-G(for latest AE92)1002M-T001JPY142,5601002M-T102JPY37,8001012M-002for latest AE92 (pin diameter is 20mm)
1NZ-FE 1002M-T008JPY112,3201002M-T108JPY33,4801012M-001*2
2T-G 1002M-T004JPY142,5601002M-T104JPY37,8001012M-001 
HONDA
B16A 1002M-H006JPY142,5601002M-H106JPY37,8001012M-001*2
B18C 1002M-H007JPY142,5601002M-H107JPY37,8001012M-001*2
H22A 1002M-H005JPY142,5601002M-H105JPY37,8001012M-001*2
K20A 1002M-H009JPY142,5601002M-H109JPY37,8001012M-001*2
F20C 1002M-H010JPY142,5601002M-H110JPY37,8001012M-001 
MITSUBISHI
4G63 1002M-M001JPY142,5601002M-M102JPY37,8001012M-002 
SUBARU
FA20 1002M-F003JPY142,5601002M-F103JPY37,8001012M-001Cannot use together with a stock piston
EJ20 1002M-F002JPY142,5601002M-F102JPY37,8001012M-001 

*1 Connecting rod bearings for PS13/Silvia are required when this rod use on RNN14/Pulsar.

*2 Full flow processing is required when using with stock connecting rods.

* Weight error of each connecting rods in a set is less than 2g.

* The displayed weights are containing a connecting rod and rod bolts. The shipping rods may be different from the above weight because the weights are reference value.

* Specify a lot-number which was carved the connecting rod or weight, when you want to buy a piece of rod. We will ship closest weight of rod.