Head Gasket

[ClutchMaster]

All things are possible. For us at Hurricane performance, hp is an ever expanding evolution. When we learn to make say 400hp, we then have learned the stepping stone to make more hp. That was the process that has led us to make over 900hp on the 4cyl Yamaha engine. Not we’ve learned to make over 700hp on the Yamaha 3cyl engine . We have now used what we learned from how the engine reacts to 700hp to target the next level of potentially 800hp. It’s this hp that produces the high mph speeds achieved on radar

Dave,
At what level of performance do you recommend removing some of the quench area in the cylinder head?

 

[ClutchMaster]

Ehh.. Snow outlaw guys were lifting heads at 400 hp... What one guy "says" he's getting is irrelevant. On race fuel the Zuk is flat out more powerful and has a bottom end out of a C15 cat.

Yea exactly! The bottom end on your avitar and the top end on mine!

Now that’s “Ultra High Performance”......
not without the price of ultra high maintenance tho!

 

[kinger]

Cracked head (factory defect) on mine caused initial leak, then used ARP and TQ to factory specs (and sequence with degrees) and head gasket leaked, then went back to stock TTY bolts and stock head gasket. I will see if this holds up this winter. So if using ARP follow the new TQ guidelines (which you have to get by calling perf shops and hoping they will give you the right amount that has worked for them) and do it yourself. My dealer did mine and I wished I could have been called in to TQ the head with ARP down....

I haven't been able to get a reliable motor yet, I suppose if luck is on my side I will get the motor finally working in its 3rd year and I'll lose the DS bearing or something else. At least my tow strap works great! Cheers! haha

 

[HURRICANE]

Dave,
At what level of performance do you recommend removing some of the quench area in the cylinder head?

We generally will add quench in higher hp engines. In fact now we are machining the combustion chamber into a hemi dome. We are finding advantage to this

 

[ClutchMaster]

We generally will add quench in higher hp engines. In fact now we are machining the combustion chamber into a hemi dome. We are finding advantage to this

I think you mean remove quench. Yea that works well on big boost or nitrous. Saves your rod bearings when using steel rods. I imagine it’s easier on the aluminum blocks also. I know some tuners who have gone away from VP import on BIG boost and made more power on steel rods. Then removed some quench and were able to get even more power.