Tomei cam cap stud

[derbeck]

Hey guys and girls any one know the torques and specs on the tomei cam cap studs for rb26 thank you

[mitch32]

Call Tomei, but they should be similar to the stock bolts. Stock is like 7ft-lbs I think, so the Tomei's shouldn't be much more (and forsure not less). I used a torque wrench but I'm sure most people don't, as 7ft-lbs is just snug.

[Bruizer]

Bump haha anyone know the real value? I found some people go with 9pounds like stock but I'd like to be sure as I don't want issues at 10k rpm.

[GTSspeed]

I think stock is 0.9-1.2 N.m (10 ft.lbs). That's for the Rb20 but I imagine it's the same across all engines.

[Bruizer]

I think stock is 0.9-1.2 N.m (10 ft.lbs). That's for the Rb20 but I imagine it's the same across all engines.

Yes, that's good for stock.

Question is, tomei are reinforced so I would guess they need more torque to set up right.

[cortexx]

the strength of the stud material does not mean the torque settings will be different. No matter what the material of the studs , the torque settings are essentially the pressure the nut bears down with on the cap.

The whole point of the stud kit is that the part thats threaded into the head is longer than the original bolt thus making more use of the existing thread in the head for security. To install the studs correctly do them finger tight in the head to avoid binding the head threads . Then torque the nuts down to factory spec .

Increasing torque over the original spec could actually distort the cam caps (made of aluminum) so i'd stick to the numbers in the service manual ( .92-1.2 Kg-m).

[cortexx]

oops only 9 months old post - oh well

[NismoS-tune]

Yeah all good.

I ended up having to buy a second set (yay for Fkups) because 9 pounds (with lube) snapped 1 stud clean. Second set was installed at 7 pounds with lube.