How much boost are you running in your j series?

[ChasingSand]

Popped a head gasket yesterday at 14lbs and wanted to see how many lbs most people are running.

 

[Mac]

2.5 Subi...18# on 110.

 

[Cookie]

9-10lbs. Engine is 10 years old, never been apart............knock, knock................... Super happy with the J-Series engine

 

[Okie]

Stock engine and 10 psi. My tuners started at 14 and said it was fine. They are not duners. I duned once and had them turn it down to 10. Intercooled and E85. Dyno showed 380 hp.

 

[Greengo]

For this exact reason and not knowing much about the J series I started the season off with very low boost, turned it up last trip out. Currently sitting @ 6psi on 110.

 

[Mac]

For this exact reason and not knowing much about the J series I started the season off with very low boost, turned it up last trip out. Currently sitting @ 6psi on 110.

 

[Jtmoney714]

All of it! Pinch the watergate line shut.

 

[Kevin]

usually its rods and pistons that give it up in a j series at that level.

 

[JM PRO]

12 pounds and occasionally 14.

Which head gaskets you using?

 

[ChasingSand]

12 pounds and occasionally 14.

Which head gaskets you using?

OEM Honda. I was able to get a set of Cometic overnighted to me.

 

[JM PRO]

I blew 2 Felpro head gaskets right away. Pure junk. I have since ran cometic and had zero problems. I did deck the heads before putting it back together

 

[77charger]

All of it! Pinch the watergate line shut.

Yeh haven’t you tested the limits lol