Cracked exhaust manifold

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Jun 9, 2012 | 10:29 AM

#11

TGoodwin

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Quote:

Originally Posted by HeyYou

The off-road y-pipe (no cat) flows best. If you can get away with that where you are, go for that one.

Otherwise, post links to the candidates.

I dont think I can get away with eliminating the cat.

Jun 9, 2012 | 01:16 PM

#12

TGoodwin

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rockers installed

Drove it today...It seems to have more power and gets up a little quicker. I did not hear any pinging even at WOT but I have 97 octane fuel and seafoam in the fuel.

http://i1068.photobucket.com/albums/...0607210150.jpg

Last edited by TGoodwin; Jun 15, 2012 at 02:12 AM.

Jun 9, 2012 | 02:00 PM

#13

dnfd737

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any issue with manifold bolts?

Jun 9, 2012 | 02:50 PM

#14

gdstock

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From: Austin, TX

Quote:

Originally Posted by TGoodwin

Heavy pinging under load. Slugish performance. Rattle sound coming from the cat sometimes during idle. Oil usage with no external leaks to account for it. The #8 plug was not excessively fouled compared to the other cylinders but the plugs were worn and due for replacement.

The truck is in very good condition with 108k miles on it.

I do not drive the truck daily to work and am doing a little bit at a time. I now have the plugs, wires, headers, and rockers installed. I hope to get time to do the intake kit install today.

Can;t believe this has not been brought up yet - Have you checked the plenum gasket yet? This will also cause such things a #8 misfire, pinging, and a range of other ugly issues.

Jun 9, 2012 | 02:56 PM

#15

dnfd737

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that was on his list-o-repairs from page 1

Jun 9, 2012 | 02:58 PM

#16

93grandzj

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From: twin cites,mn

well he did say he got the plenum repair kit.
i would ditch the superchips was it, and get an sct from hemifever.

Jun 9, 2012 | 03:13 PM

#17

gdstock

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From: Austin, TX

Quote:

Originally Posted by dnfd737

that was on his list-o-repairs from page 1

I missed that as I did not re-read form beginning. (crazy week at the office and basballe thing going on.....) OP may be on the way to getting it resolved then.

Jun 10, 2012 | 02:43 AM

#18

TGoodwin

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bolts

Quote:

Originally Posted by dnfd737

any issue with manifold bolts?

No problems they came right out of the heads. I cleaned up the threads with a tap and applied anti-seize to the new header bolts.

I installed the flowmaster catback today. I also have a new y-pipe/cat on the way. I was going to do the plenum kit but did not have time. Maybe next weekend as I am working tomarrow.