1997 SSEi Performance Build up Time Update 2/5/07new mod!! - Page 10 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 12-11-2006, 12:15 AM   #91
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Okay, I removed the front Manifold tonight...
I unbolted the ICM, and unbolted that left side heat sheild.
I know what bolt you were speaking of that was hard to remove, right behind the dipstick, however, When I unbolted the dipstick mount, I went to move the dipstick over a tad, i gave it a tug, and it popped right out of its hole...that made TONS of room, now I just have to re install that dipstick tube.
The Marty manifolds in comparisson to the stock ones are opend up a bit more, thats for sure, I still feel I can have them machined a litle bit more.
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Old 12-11-2006, 08:37 AM   #92
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The ICM needed to move
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Old 12-11-2006, 10:28 AM   #93
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It was much easier with it out of the way.
It made more room for unbolting that heatshield.
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Old 12-11-2006, 09:00 PM   #94
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New pics for ya.
Here are the PEMS
I want Ideas, suggestions, warnings..ect from anyone here...
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Mine are obviously the used looking ones

Here is my LIM with the new gasket lined up over it
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I see how the port tapers off, Should I clean up the outlet so it matches the gasket?
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Old 12-11-2006, 09:26 PM   #95
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Forget the GASKET, and match it to the port size of the HEAD.

Where'* the other PEM?
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Old 12-11-2006, 09:36 PM   #96
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Old 12-11-2006, 09:40 PM   #97
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I remember now. Your rear PEM didn't get any material added under the 'chin'. Your front will outflow the rear dramatically.

I suspect you may have similar issues to powerlog users.
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Old 12-11-2006, 09:44 PM   #98
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The front one was not ported a whole lot...the ports on the front mani are a bit smaller in comparission to the rear...
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Old 12-11-2006, 09:50 PM   #99
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Look at this one carefully. Can you see how if you're the exhaust gasses, you have to move up right after entering the manfold? Material should have been added UNDERNEATH each runner, behind the flange, so you could remove the restriction. This is your REAR manifold, and will not flow as much as your front.

Measure your port sizes front to rear. Even if they're the same, that rear was done incorrectly, and will not flow as much as the front. We looked at these at WCBF and diagnosed them there. I recall suggesting getting that rear fixed before use.
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Old 12-11-2006, 09:56 PM   #100
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This is why I was confused, you are calling the front manifold the rear..the rear is still attached to the car.
So i need to talk to a machine shop
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