Standard ARP Head-studs or L19's?

[streetdsmpwr]

I am building a 6-bolt for my Talon and I don't know if I need L19 head-studs for my setup or if I can just go with the standard ones. This is a budget build so I am trying to save money where I can. I will be running a 1g rod/2g piston combo w/ arp rod bolts and shooting for 500-600 whp. Thanks.

 

[3parks]

What psi boost?

 

[99gst_racer]

600 WHP (roughly 65-70 lbs/min) is pushing the limits of the regular ARPs. They might do just fine, but L19s would give you the extra margin so that you can be sure they're sufficient. Do it once, do it right.

 

[Boomdeeze]

If you are going over 35 psi, I would go with the L19's. I will be shooting for 550 awhp at about 32 psi with standard ARP head studs and ARP rod bolts. 6 bolt with evo 9 pistons.

 

[streetdsmpwr]

Well the plan is to run a HX-52 at 26-28 psi. I guess I'll wait till the L19/H11's are on sale. I might as well do it right the first time as 99gst_racer said. However, this motor is pretty cheap and is in a track-only car, so I won't be too upset if something happens to it.

If you are going over 35 psi, I would go with the L19's. I will be shooting for 550 awhp at about 32 psi with standard ARP head studs and ARP rod bolts. 6 bolt with evo 9 pistons.

It's my understanding that it doesn't matter what boost you are running, just hp. More hp = more cylinder pressure. 30 psi on a 16G will be easier on the engine than 28 psi on a HX-52.

 

[Boomdeeze]

Well the plan is to run a HX-52 at 26-28 psi. I guess I'll wait till the L19/H11's are on sale. I might as well do it right the first time as 99gst_racer said. However, this motor is pretty cheap and is in a track-only car, so I won't be too upset if something happens to it.



It's my understanding that it doesn't matter what boost you are running, just hp. More hp = more cylinder pressure. 30 psi on a 16G will be easier on the engine than 28 psi on a HX-52.

Well if you want to get technical then it's lbs/min. as Paul was talking about. I would just get the L19's if your worried about it.

 

[talonDSMerr]

Haha, if you want to get real technical, it's psi, or peak cylinder pressure. But we can't measure that easily, like we can airflow.

 

[burkgonzo]

600 WHP (roughly 65-70 lbs/min) is pushing the limits of the regular ARPs. They might do just fine, but L19s would give you the extra margin so that you can be sure they're sufficient. Do it once, do it right.

Thats good info, guess I dodged a bullet for now.

 

[Boomdeeze]

Haha, if you want to get real technical, it's psi, or peak cylinder pressure. But we can't measure that easily, like we can airflow.

Haha well lets not it too technical now. But yes the best way to measure would be lbs/min.

 

[phunny]

L19's.

 

[trick engine]

I have run the standard ARP studs with a o-ring block and metal headgasket up to 45psi with no issues making 755AWHP. The O-Rings help alot to seal the gasket.