arp head studs - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

attracted · 02-22-2008, 07:18 PM

ok heres the situation

sr20 redtop
built head with bc264 cams
cometic head gasket
hks manifold and apexi ihi turbo
planning to boost aobut 20 25 pounds

how much would you guys torque the arp head studs

Kouki · 02-22-2008, 09:14 PM

Just read the fucking instructions from ARP.

babowc · 02-22-2008, 09:53 PM

^someone having a bad day?

Check FSM
There's no TQ rating that differs because of the mods you have on your car.
TQ too much, risk stripping out your block.
TQ too little, lift.

TQ down to what the FSM states.
It's probably better to look at the ARP instructions like Kouki said.

KA-T_240 · 02-22-2008, 09:59 PM

It also depends on what you use for the lube on the studs. There is differant on wether you use ARP moly lube or just a regular "engine oil"

I would go buy the instructions that came with the studs.

blownmotor · 02-22-2008, 10:00 PM

90 -100lbs and re torque after first heat cycle

HalveBlue · 02-22-2008, 10:15 PM

The ARP head studs come with instructions that show you what the torque ratings are.

They ARE different from the torque ratings for the OEM bolts. The FSM instructions relate to the OEM bolts only.

I'll check tomorrow what the ARP instructions say.

attracted · 02-23-2008, 08:24 AM

im using the arp moly lube....
arp instructins says torque it to 65....
i dnt think its enough for that much boots...hence the reason i asked the question
ive heard ppl torquing it att 85 90 and was wondering if i should go that way

JVD · 02-23-2008, 10:25 AM

Ya, Enthalpy says 80lbs so that's what I'm gonna go with. People say to go in stages. I'll go 20-40-60-80.

This might help.

http://forums2.freshalloy.com/showpo...53&postcount=3

HalveBlue · 02-27-2008, 09:07 PM

As per ARP instructions:

70 ft/lbs if using the ARP molly lube. 85 ft/lbs if using motor oil.

Aluminum heads should be torqued down to 65 ft/lbs because of their heat expansion properties.

Big Bronze Rim · 02-27-2008, 10:04 PM

Quote:

Originally Posted by JVD

Ya, Enthalpy says 80lbs so that's what I'm gonna go with. People say to go in stages. I'll go 20-40-60-80.

This might help.

http://forums2.freshalloy.com/showpo...53&postcount=3

Thats how I did mine two years ago - no problems! 100 Ft-lb seems like way to much. Pulling threads out of the head isn't fun.

motegineon · 02-27-2008, 10:10 PM

80lb with their sexy time lube

slider2828 · 02-27-2008, 10:23 PM

80 as well...........

02-22-2008, 07:18 PM	#1
attracted Leaky Injector Join Date: Sep 2005 Location: montreal Posts: 55 Trader Rating: (0) Feedback Score: 0 reviews	arp head studs ok heres the situation sr20 redtop built head with bc264 cams cometic head gasket hks manifold and apexi ihi turbo planning to boost aobut 20 25 pounds how much would you guys torque the arp head studs

02-22-2008, 09:53 PM	#3
babowc Post Whore! Join Date: Nov 2005 Location: G.NET Posts: 2,659 Trader Rating: (9) Feedback Score: 9 reviews	^someone having a bad day? Check FSM There's no TQ rating that differs because of the mods you have on your car. TQ too much, risk stripping out your block. TQ too little, lift. TQ down to what the FSM states. It's probably better to look at the ARP instructions like Kouki said. __________________ My iTrader rating!

02-22-2008, 09:59 PM	#4
KA-T_240 Nissanaholic! Join Date: Sep 2005 Location: Moorhead, MN Age: 38 Posts: 1,788 Trader Rating: (0) Feedback Score: 0 reviews	It also depends on what you use for the lube on the studs. There is differant on wether you use ARP moly lube or just a regular "engine oil" I would go buy the instructions that came with the studs. __________________

02-27-2008, 10:23 PM	#12
slider2828 Post Whore! Join Date: Oct 2004 Location: San Francisco, CA Posts: 6,040 Trader Rating: (13) Feedback Score: 13 reviews	80 as well........... __________________ Turn and Burn!

02-22-2008, 09:14 PM	#2
Kouki Zilvia Addict Join Date: Feb 2005 Location: Nebraska Age: 40 Posts: 727 Trader Rating: (3) Feedback Score: 3 reviews	Just read the fucking instructions from ARP.

02-22-2008, 10:00 PM	#5
blownmotor Zilvia Junkie Join Date: May 2006 Location: land of the sideshows Posts: 402 Trader Rating: (0) Feedback Score: 0 reviews	90 -100lbs and re torque after first heat cycle

02-22-2008, 10:15 PM	#6
HalveBlue Zilvia FREAK! Join Date: Mar 2004 Location: I'm somewhere where I don't know where I am! Posts: 1,549 Trader Rating: (0) Feedback Score: 0 reviews	The ARP head studs come with instructions that show you what the torque ratings are. They ARE different from the torque ratings for the OEM bolts. The FSM instructions relate to the OEM bolts only. I'll check tomorrow what the ARP instructions say.

02-23-2008, 08:24 AM	#7
attracted Leaky Injector Join Date: Sep 2005 Location: montreal Posts: 55 Trader Rating: (0) Feedback Score: 0 reviews	im using the arp moly lube.... arp instructins says torque it to 65.... i dnt think its enough for that much boots...hence the reason i asked the question ive heard ppl torquing it att 85 90 and was wondering if i should go that way

02-23-2008, 10:25 AM	#8
JVD Nissanaholic! Join Date: Feb 2005 Location: Alberta, Canada Age: 36 Posts: 1,820 Trader Rating: (0) Feedback Score: 0 reviews	Ya, Enthalpy says 80lbs so that's what I'm gonna go with. People say to go in stages. I'll go 20-40-60-80. This might help. http://forums2.freshalloy.com/showpo...53&postcount=3

02-27-2008, 09:07 PM	#9
HalveBlue Zilvia FREAK! Join Date: Mar 2004 Location: I'm somewhere where I don't know where I am! Posts: 1,549 Trader Rating: (0) Feedback Score: 0 reviews	As per ARP instructions: 70 ft/lbs if using the ARP molly lube. 85 ft/lbs if using motor oil. Aluminum heads should be torqued down to 65 ft/lbs because of their heat expansion properties.

02-27-2008, 10:10 PM	#11
motegineon Banned from the Marketplace Join Date: Aug 2005 Location: 神奈川県,日本 Posts: 487 Trader Rating: (2) Feedback Score: 2 reviews	80lb with their sexy time lube