we fitted ARP for the first time in my project and if i remember correctly the mechanic said it wouldnt be advisable to go over 70Nm or so,in fear of cracking the block...
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If You use ARP's own washers, 60lbs is a bit on a tight side, as the washer is significantly smaller than in oe bolts.
With bigger washers, I usually tighten those to 9,5 or 10kg, which is pretty much 60lb.
You ALWAYS need to retorque head studs. That is exaclty why Dr Jones' bolts were slacky.Everything less than 2 bar is considered to be naturally aspiratedComment
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Sorry! I have asqued wrong!
How much power and boost the oem bolts are capable!
Wich is the limit were you need to change to arp or other?
Thank You!
EugenComment
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Eugen
its not really just about power levels but more the fact that arp studs are re-usable,
oem = replace every time you take engine apart (buy new ones)
arp = re-usableDez
Never did overtime until i purchased........s2
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Thank You Verry much!
I have the oem ones allready and is good that they work ok.
I hope i will not need to take the engine apart soon.
Thank You!
EugenComment
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OEM bolts can lift in high power applications but to be honest if your under 500 bhp I don't think this is a problem.Comment
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No.
Dont know how much power i can get from the T3-T4 turbo.
But i whant 400 and how much low down torque i can.
Hope the bolts will be ok.
Thank You Jamo
All the best!
EugenComment
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