b18a1 build question

[lowerclassdc2]

hey guys i was wondering how much i should torque the head bolts down to on a '90 b18a1 it has
tpye r pistons
brian crower cams
12psi boost on t3/t4 turbo
the stock torque spec seems low so i was wondering what you guys thought with this setup.

 

[Samurai_Blue]

are you using stock head bolts or arp?

 

[lowerclassdc2]

stock head bolts

 

[Samurai_Blue]

New or used?

 

[lowerclassdc2]

new

 

[dlo253]

You don't just go changing specs as you wish. They are given for a reason. If you wanted your head torqued down more you shoulda went with ARP which get torqued to 80 ft/lbs.

 

[Samurai_Blue]

You don't just go changing specs as you wish. They are given for a reason. If you wanted your head torqued down more you shoulda went with ARP which get torqued to 80 ft/lbs.

agreed. apr only get torqued to 60 iirc if you use ARP sealer

 

[dlo253]

It is 80 with their moly lube. 3 steps. 22-61-80.

 

[lowerclassdc2]

if i use the stock bolts then i would have to keep them torqued to the stock spec right? im going to buy arp studs i think its a better way to go

 

[dlo253]

Correct.
Yes it is, definitely.
You still using stock rod bolts??

 

[lowerclassdc2]

No i upgraded them to arp when i did the bearings

 

[dlo253]

Ok good. The studs are definitely a good investment too, especially on boost.

 

[lowerclassdc2]

yea i know i have them i was just wondering if i could torque the stock ones a little more because i was going to use the arp ones for a gsr block i have

 

[dlo253]

Keep them for that setup. Get a set for the ls.

 

[lowerclassdc2]

yea im going to order them tomorrow and keep the ones i have for the gsr because thats boosted on 10psi too