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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 06-19-2005, 01:10 AM   #11
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Damn those are sexy
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Old 06-19-2005, 01:16 AM   #12
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1500 degree ceramic header paint. 5 coats. Heat shields are all black (front, rear, and crossover).
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Old 06-19-2005, 02:56 AM   #13
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Shoulda known they'd end up red...

Sorry I was short on welding ideas earlier, we were headed to a ZZ Top concert, so my mind was elsewhere.
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Old 06-19-2005, 03:12 AM   #14
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We just played it safe, and I ported the bare minimum on the factory welds inside. Worked out well, but to play it safer, I'm re-surfacing the flanges, and using header gaskets during reassembly.
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Old 06-19-2005, 03:35 AM   #15
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I hope that paint matches the rest of your engine bay

You will need a new sig pic to show those babies off!
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Old 06-19-2005, 08:06 PM   #16
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I don't think they'll show in a sig pic.

Anyway, here'* the completed pics, all fixed and finished, including porting. By tacking the outside of the flange in the pics above, I was able to port them out quite a bit by removing the inside OEM weld. I didn't take ALL of the OEM weld, but most of it. The port diameters increased from 1.35" to 1.45", an increase of 16.5" in surface (flow) area.

On a side note, my LIM manifold from the other topic about porting netted me a flow increase capability of 9% (by increasing the 1.8"x0.8" ports to the head port size of 1.9"x0.9").

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Finished painting. 1500 Ceramic header paint (5 coats on manifolds, 3 coats on heatshields).


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Ported out from 1.35" to 1.45". A 16% increase in area. This is the biggest restriction in the exhaust. (was)
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Old 06-19-2005, 10:56 PM   #17
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Nice fixup Robin, that porting and paint is a nice touch
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Old 06-19-2005, 10:58 PM   #18
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16%, baby.
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Old 06-19-2005, 11:07 PM   #19
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WOW
Bill that looks great man.
I remember you saying a while back that you could eat off your engine bay cause it'* so clean. Thats nooo joke.
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Old 06-19-2005, 11:17 PM   #20
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We'll see how long that header paint lasts.
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