What's in the plastic?

[Green7mgte]

so your saying because your headers were wrapped they broke..
wow makes me re consider wrapping my new exhaust header..

[Krem]

Originally Posted by Green7mgte

so your saying because your headers were wrapped they broke..
wow makes me re consider wrapping my new exhaust header..

I'm saying since my headers get to a glowing red condition (like they just got out of a forge) when I drive home at night, and I shut my engine off when I saw the smoke, I didn't have heat supplied to the heaters while the water flashing on the headers was actually rapid cooling the metal... which causes stress in the metal and can cause cracks.

Wrapped headers are a bad idea and I want to smack the guy who put them on the car, cause he also swapped the manual tranny for an auto.. Wrapped headers are designed to retain the engine heat and allow the exhaust to escape quicker, retaining the heat in the engine. Combine the retained heat, clogged cat conv. and a bad clutch fan w/ no shroud... the temps were hot enough to start melting and warping the plastic sheath/tube around the wiring harness and blow out the prestone plug..

Sooo, elec fan w/ shroud... Exhaust Headers & Gasket, Cat Conv, new heater hose and vacuum tube (to make VSV work again) and I should be back up... I'm thinkin ~$600 if I do the labor myself? :\

Also, as for wrapped headers... I've read up on the subject. They are good for full racing, but if it's your daily driver I would recommend looking into coating the headers. Not only do wraps void header warranties, and coating may not.. but it keeps the engine bay a lil bit cooler... This is gunna be the measure I pursue if I decide to mess w/ the headers again when I need to swap the engine. The only thing I might wrap in the future are air pipes to keep the heat out and keep the air cool..

[Cameroonski]

Well... i'd say don't get a new cat, just unclog the one you have. Metal pipe+catalytic converter=better airflow

thats what i did and i was passing emssions at cruising speed and not at idle, but i'm pretty sure that was because i had the timing advanced pretty far and had a fast idle. If you play with it some you should be able to pass emissions without that cat.