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Old 06-24-07, 08:47 AM
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Motor had 9k on it - 2mm seals. I was running 18psi when it let go. Front rotor went for a change. Housing, Irons and turbo have no damage.

Apex 1



Apex 1 seperated



Apex 2 - crack starting from the left side

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Old 06-24-07, 09:03 AM
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Classic !
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Old 06-24-07, 10:05 AM
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so thats what the infamous apex seal looks like. interesting.

sorry for your loss
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Old 06-24-07, 11:00 AM
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Ah that sucks,i'm sorry to hear that..Especially with only 9k miles on it.Were you running 18 psi on pump gas?
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Old 06-24-07, 02:04 PM
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Yep. 18psi on pump. Pretty much the limit I would go on pump.

(maybe to far for the engines that I put together..)
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Old 06-24-07, 05:15 PM
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Ouch, who tuned it?

What are the plans?
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Old 06-24-07, 05:31 PM
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Originally Posted by shawnk
Yep. 18psi on pump. Pretty much the limit I would go on pump.

(maybe to far for the engines that I put together..)
Shawnk, the general consensus for years now has been that 15psi is the max you should go on pump. Anything past that is pushing it...
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Old 06-24-07, 08:07 PM
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Originally Posted by FDNewbie
Shawnk, the general consensus for years now has been that 15psi is the max you should go on pump. Anything past that is pushing it...
hence the breakage...
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Old 06-24-07, 11:42 PM
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Originally Posted by BlouZbee
so thats what the infamous apex seal looks like. interesting.
yep, they all look like that. eventually.
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Old 06-25-07, 06:54 AM
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Originally Posted by zinx
Ouch, who tuned it?

What are the plans?
I tuned it. It definitely was not an AFR issue. It is most likely timing as I am still learning it (slowly or possibly not at all).

Plans are to put it back together again and turn it back up to 18psi
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Old 06-25-07, 07:12 AM
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Originally Posted by FDNewbie
Shawnk, the general consensus for years now has been that 15psi is the max you should go on pump. Anything past that is pushing it...


15 psi on what turbo?
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Old 06-25-07, 07:48 AM
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Shawn, 18 psi on pump alone is too much. I run 18-19 on pump, but with my Aquamist 1s system injecting windshield wiper fluid after 10 psi as added insurance
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Old 06-25-07, 05:52 PM
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sorry to hear it shawn.. That's why I always mix 100 in there. Seeing 17 sometimes makes me wonder. 14k so far. G
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