NEW:... Blown Head Gasket Analysis
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From: EveryWhere & yet... NoWhere
Originally Posted by dutchboy350Z
GTM Stroker Kit
Stroke: 81.4-87.0-90.0mm (3.54-3.78-3.91L displacement with a 96mm bore, 3.84-4.10-4.24L with 100mm bore)
Gee I wonder which size kit Brent's going with. It's probably not the 3.54 Liter version
Stroke: 81.4-87.0-90.0mm (3.54-3.78-3.91L displacement with a 96mm bore, 3.84-4.10-4.24L with 100mm bore)
Gee I wonder which size kit Brent's going with. It's probably not the 3.54 Liter version
Originally Posted by BamBam
No, I would guess not....
Last edited by Sam@GTM; Dec 27, 2006 at 08:42 PM.
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From: delaware
hmmmmmmm
Originally Posted by Sam@GTM
Bambam is getting something is not even out yet ,its highly classified
I cant wait to see how this turns out!!!!
Bam i will keep you in the loop on the track deal. also dont forget about the c-2 cams and v-train ok let me know!
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From: EveryWhere & yet... NoWhere
lol.. I am looking forward to getting it back in my car along with a few other new goodies... 
PS. Sharif, I am sure you will be happy to have my car out of your shop too. Pushing it in and out must be a pain... LOL..
PS. Sharif, I am sure you will be happy to have my car out of your shop too. Pushing it in and out must be a pain... LOL..
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From: delaware
Originally Posted by Eazzzzzzy
I dont know bout ya'all ---But it excites me when I blow something up, Gets me thinking bout --WHATS NEXT !!!
Silver linings and all that -----
Silver linings and all that -----
man if everyone felt that way........ i would do nothing but sell parts!!!!! but thats not the case
any way good luck brent
Originally Posted by BamBam
When Forged replaced the Headgasket, they did not teardown the short block, that being said, I never looked into the block for any damage. It was very late a night and I was too tired to pay attention at that point. Yes the studs were upgrades and required larger holes tapped into the short block, These were not drilled straight and therefore caused runout on the studs.
As for how it held together, many people are asking that question. It was obvious that something was wrong from the dramatic loss of power on the Florida Dyno. Even after Sharif replaced the headgasket, the while he was tuning it was making slightly less power then expected. But it still had a good power curve and was reacting as expected to increases in boost and changes in fuel pressure/AF ratios.. ???
As for how it held together, many people are asking that question. It was obvious that something was wrong from the dramatic loss of power on the Florida Dyno. Even after Sharif replaced the headgasket, the while he was tuning it was making slightly less power then expected. But it still had a good power curve and was reacting as expected to increases in boost and changes in fuel pressure/AF ratios.. ???
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From: delaware
Originally Posted by wtf no turbo
Hmm... well I am glad your sticking with it. Hats of to you guys for pushing the threshold clearing the path for the rest of us. Ive seen a picture of the wall and looks to me that went bang and that was it.
hey wtf can you put a link to the pic i missed that one
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From: EveryWhere & yet... NoWhere
Originally Posted by STREETTRENZ MAG
hey wtf can you put a link to the pic i missed that one
wtf_no_turbo: I am curious as to where you saw that pic also. As far as I know, only 3 shops have it & I don't recall posting them..?
Eazzzy: Trust me, with the amount of money I have put into this, the last thing I want to happen is for anything to break... I can buy a house for what I have put into this car and I am not happy when something that is going to cost me $20k to fix, breaks... Especially when I just paid over $20k for it and it breaks in a month of use.
--B
Originally Posted by BamBam
Eazzzy: Trust me, with the amount of money I have put into this, the last thing I want to happen is for anything to break... I can buy a house for what I have put into this car and I am not happy when something that is going to cost me $20k to fix, breaks...
I am not one to stir up trouble ......but when the heads were off the block didn't anyone look into the bores or clean them before putting the heads back on?? I mean this is basic engine building stuff. There would be obvious evidence if the ring was put in wrong from the beginning. I realize it was late and everyone was in a rush but....
Originally Posted by g356gear
I am not one to stir up trouble ......but when the heads were off the block didn't anyone look into the bores or clean them before putting the heads back on?? I mean this is basic engine building stuff. There would be obvious evidence if the ring was put in wrong from the beginning. I realize it was late and everyone was in a rush but....
Originally Posted by Sharif@Forged
It's a perfectly valid question. After removing the heads, we checked the cylinder walls for damage, and also checked the block deck and cylinder heads for distortion. All surfaces were perfectly flat...not even .001 deflection from straight. The ring issue was not visible during our inspection, as we didnt break-down the block. Brent and I had a long discussion about how to proceed, and in the interest of time, we buttoned the engine back up, knowing there was risk involved in taking this approach without a complete breakdown and evaluation of the entire engine.
Originally Posted by g356gear
What is the hypothesis on how the ring went bad. If it's wrong from the start then it would have shown signs even after break-in. Did a ring land break under the higher boost levels to lead to the ring failure?
A ring land never broke.
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