Stock B18c running about 10psi of boost and stock head gasket. What would you guys recommend to torque the head at using Arp head studs.


[Modified by saso, 8:12 AM 6/3/2002]

 

Friend of mine has a stock GSR motor, turbo, at 11psi. His ARP head studs were torqued at 69ft/lbs, stock head gasket.

 

ttt

 

arp reccomends 72ft/lbs using their supplied lube, 82 ft/b with 10-30 wt oil

 

I remember ARP saying to torque them at 63ft lbs using there lube. Anyways it's all safe, as long as you don,t go below 63 I guess. Make sure you do a 2 or 3 step torque!

 

Do you have the ARP moly lube ? It will make a difference. If you use the ARP moly lube, you will torque to lower specs. Otherwise you need to use a 30 weight oil and the higher specs....

b18C ARP head studs should be torqued in the following manner:

Torque all head studs in proper sequence in a 2 stage manner.

1st pass:

With ARP moly lube: 30 ft/lbs
or
With 30 weight oil: 40 ft/lbs

2nd pass:

With ARP moly lube: 65 ft/lbs
or
With 30 wieght oil: 80 ft/lbs

**Do not torque the b18c head studs tighter than 65 ft/lbs with ARP moly lube or 80 with 30w oil.
These figures are directly from ARP, triple check by myself and takes into account the aluminum head senario.

HTH

X2





[Modified by X2BOARD, 9:34 AM 6/3/2002]

 

That sounds about right...I took mine all the way to 78lbs.

 

ttt