One Stressed Out Manifold
#1
Boost Czar
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Join Date: May 2005
Location: Chantilly, VA
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One Stressed Out Manifold
This is what happens when you stress your manifold:
This is between runner 2 & 3. This is what had cracked before. The white stuff is cold weld, I couldn't tell if it was cracked or not at first, so I applied it and let it cure. After a few minutes of driving a crack delevoped in it.
This is the bottom of runner #1. Notice the cut I had to make in the runner to remove it from the block. I had to pound the hell out of it with a hammer to bend it back since it was warped so bad:
The flange:
Runner #4:
This is between runner 2 & 3. This is what had cracked before. The white stuff is cold weld, I couldn't tell if it was cracked or not at first, so I applied it and let it cure. After a few minutes of driving a crack delevoped in it.
This is the bottom of runner #1. Notice the cut I had to make in the runner to remove it from the block. I had to pound the hell out of it with a hammer to bend it back since it was warped so bad:
The flange:
Runner #4:
#2
Boost Czar
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iTrader: (62)
Join Date: May 2005
Location: Chantilly, VA
Posts: 79,493
Total Cats: 4,080
BTW, my new manifold and DP are in the finishing stages. It's shipping tomorrow 3-day. Should have it on Wednesday and get my baby all back together next weekend! Then I'll dyno tune her next Friday and go to the track Sat & Sun and see what else I can break.
#8
I bet that braineack puts his turbo stuff through 10x the punishment of anybody else here because he does track events. It's like a drag racing from corner to corner for 20 minutes straight. I saw one of racing mazda's tubular manifolds crack at the end of it's second 20 minute session at a track event. And it had additional gussets added for strength. It's got to be a combination of the perpetual boost (heat) and the bouncing off of curbs, excessive and repeated load changes. It's hardcore abuse. - rob
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