when installing arp headstuds
There is a lot to be said for retaining the factory seal which is why I like to retain the stock head gasket and bolts for as long as possible. If you haven't blown your gasket, and the head isn't lifting, why bother doing the swap? IMO all you're doing is increasing your chance of failure.
It does not need to be broken in. After a few heat cycles its a good idea to retorque the ARP's though. ARP recommends a very low spec, but it seems like most engine builders are recommending between 85-95 ft/lbs. I'll be reassembly a friend's engine fairly soon here and I plan to torque his to 90 ft/lbs to split the difference in case the torque wrench is inaccurate in either direction.
Make sure the engine is cold. Also make sure you blow out any oil or coolant from the stud holes before putting in new ones. Retorque after about 100 miles of driving when the engine is cold
There is a lot to be said for retaining the factory seal which is why I like to retain the stock head gasket and bolts for as long as possible. If you haven't blown your gasket, and the head isn't lifting, why bother doing the swap? IMO all you're doing is increasing your chance of failure.
your planning to switch to the FP Red, i would go ahead and do the Studs, stock gasket will be fine.
Im running a 35 on stock gasket with APR studs. 22-25psi daily, 25-33psi Race Day. 80k miles. NO PROBLEM
Im running a 35 on stock gasket with APR studs. 22-25psi daily, 25-33psi Race Day. 80k miles. NO PROBLEM
I know some local IX's with Red's running E85 and 31+ psi daily on the stock studs and gasket; no issues. The stockers are quite strong and I really think changing them has the potential to cause more issues and really won't be saving you from anything.
Yeah i know many people rolling around on stock studs, but i would rather be safe then sorry. Thats why i went ahead and changed mine. Im finishing up my full build so a change was needed.
Well coming from a motor building background I do not believe the critics that say there is a better chance of failure by changing the studs out, AS LONG AS EVERYTHING IS CORRECTLY installed and checked. I usually do a quick check of the surface on the head at the very least. Every motor wears a bit different, who knows how the guy drove it before, and if there is the slightest warp (god forbid) in the head then the seal will not be right, but making sure the sealing surfaces are flat and within specs means that the block to head seal will be as good if not better than new depending on the head gasket used along with technique used. It's all in the time you spend on the procedure of installing a new head gasket, checking things, and parts used. So take the time use your manual and do things right. The 1x1 method SHOULD work, if you don't want to go through the hassle of checking surfaces but it isn't guaranteed. Make sure you do a leak-down or at least a compression test to say the least before and after the procedure. Regardless either way take your time with whatever path you may choose...hey if the 1x1 does not work, go back in with the new head gasket and make sure to check or have the machine shop check the head out at the very least. (usually the blocks surface is okay).....I think your stock stuff will be fine even with an FP red. Just my 2 cents, then again I'm a noob to evolutinm.net -Travis
GL
Well coming from a motor building background I do not believe the critics that say there is a better chance of failure by changing the studs out, AS LONG AS EVERYTHING IS CORRECTLY installed and checked. I usually do a quick check of the surface on the head at the very least. Every motor wears a bit different, who knows how the guy drove it before, and if there is the slightest warp (god forbid) in the head then the seal will not be right, but making sure the sealing surfaces are flat and within specs means that the block to head seal will be as good if not better than new depending on the head gasket used along with technique used. It's all in the time you spend on the procedure of installing a new head gasket, checking things, and parts used. So take the time use your manual and do things right. The 1x1 method SHOULD work, if you don't want to go through the hassle of checking surfaces but it isn't guaranteed. Make sure you do a leak-down or at least a compression test to say the least before and after the procedure. Regardless either way take your time with whatever path you may choose...hey if the 1x1 does not work, go back in with the new head gasket and make sure to check or have the machine shop check the head out at the very least. (usually the blocks surface is okay).....I think your stock stuff will be fine even with an FP red. Just my 2 cents, then again I'm a noob to evolutinm.net -Travis
GL
I would not bother with it. I have a set of studs here on a shelf, but never installed them.
~35psi spikes when I had the stock turbo on e85 daily, now i am running 31-32psi on a gt35r on e85 daily on factory head bolts. And trust me at this power level pushing a gasket is the last thing on my mind.
Fathouse
~35psi spikes when I had the stock turbo on e85 daily, now i am running 31-32psi on a gt35r on e85 daily on factory head bolts. And trust me at this power level pushing a gasket is the last thing on my mind.

Fathouse
Thread
Thread Starter
Forum
Replies
Last Post
Black_EVO_MR
For Sale/WTB - Engine / Drivetrain / Power
1
Jun 3, 2016 08:37 AM
Rgraystone88
Evo X Engine / Turbo / Drivetrain
12
Oct 23, 2014 01:41 PM
kemoly
Evo Engine / Turbo / Drivetrain
10
Aug 7, 2009 05:35 PM









