So here are some details. When we tuned it at 7 psi there was no probs. So I go back to the dyno(with my 3 Bar ) to tune it at 16psi. Thats when the problem showed up. On the dyno at full boost my overflow tank would bubble.
Car held good temp
No coolant/oil mixture probs
If driven normal, there was no probs, only at full boost. Then coolant would be under my hood
ARP headstuds originally torqued to 67 ft lbs
I rechecked studs and they aere still at 67
Solid compression

Here are some LARGE pics for detail. All info is greatly appreciated....









By the way my head gasket fell in the dirt after I pulled it off

 

You could resize those a little with this VVV
http://picasa.google.com/index.html

That looks nasty tho

 

headgasket....I go to 81 ft lbs on my arps....

 

aren't the torque specs for h22's like 78 or 81lbs?

 

headgasket


I had the same problem, damn coolant spraying out all over the engine bay from that f'ing overflow tank.

Give her a new gasket, use copper spray, tighten to 80ft/lbs, back to the dyno

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by flip1199 &raquo;</TD></TR><TR><TD CLASS="quote">aren't the torque specs for h22's like 78 or 81lbs?</TD></TR></TABLE>

depends if your using lube or motor oil. . .

 

Looks like headgasket failure. Cylinder #3.

 

My thoughts exactly guys, thanks. New HG should be here Monday...

 

pre-torque the ARP's into the block about 10-15 ft/lbs, then torque the head down a little tighter.

platinum.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 520Motorsports &raquo;</TD></TR><TR><TD CLASS="quote">My thoughts exactly guys, thanks. New HG should be here Monday...</TD></TR></TABLE>

make sure u torque it down to ~78lbs

 

what size cyl. bore are the pistons?

 

87

 

looks like its lifting the head.

make sure to resurface the head and make sure the deck on the block is straight

 

yup i was gonna say head lift

 

How's your oil look?

 

alot of times if the head is just lifting it wont contaminate the oil....

 

Yeah, the oil is fine....

 

well did u resursace the head.............i dont no to much but maybe

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDogg &raquo;</TD></TR><TR><TD CLASS="quote">alot of times if the head is just lifting it wont contaminate the oil....</TD></TR></TABLE>

Right, im trying to rule out the headgasket.


If you dont hear any water rushing sounds, you're more than likely ok and it's not the gasket then.

Obviously coolants getting into cyl #3...so if it's not the gasket, the head's lifting like JDogg said.

What are you using to tune?

 

Did you try turning down the boost to see if the problem still occurs?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bdazzteg &raquo;</TD></TR><TR><TD CLASS="quote">well did u resursace the head.............i dont no to much but maybe </TD></TR></TABLE>
Of course

Didnt try going down on boost. Just left the tune as was and headed home. When driving normal, nothing above 7psi, it was fine. Only at full boost. So it was just lack of torque and the head was lifting. Just trying to figure out what torque I am going to go with now. I have ARP lube and oil.

I use AEM EMS..

Thanks for all the info guys, as always HT to the rescue

Chris....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 520Motorsports &raquo;</TD></TR><TR><TD CLASS="quote"> So here are some details. When we tuned it at 7 psi there was no probs. So I go back to the dyno(with my 3 Bar ) to tune it at 16psi. Thats when the problem showed up. On the dyno at full boost my overflow tank would bubble.
Car held good temp
No coolant/oil mixture probs
If driven normal, there was no probs, only at full boost. Then coolant would be under my hood
ARP headstuds originally torqued to 67 ft lbs
I rechecked studs and they aere still at 67
Solid compression

Here are some LARGE pics for detail. All info is greatly appreciated....




</TD></TR></TABLE>

Do you have any more shots of this cylinder?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by D@nnY &raquo;</TD></TR><TR><TD CLASS="quote">headgasket....I go to 81 ft lbs on my arps....</TD></TR></TABLE>

does this apply to all motors (in my case ls/vtec with arp head studs)

 

I vote for low ARP torque specs....67 is low, ls/vtec i did 80 ft/lbs but have o rings and sleeved...

 

what are all the possible causes for a head to lift?

A lot of neon folks mistake detonation for cylinder heads lifting.