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Discussion in 'The Garage' started by down4thakrown, Jun 26, 2005.
would it be ok to break my engine in with just headers and collectors?? no pipes or mufflers?
Sure, Why not? Unless you don't want to piss of the neighbors, otherwise you're not going to hurt anything.
ive done it a few times and all are still running with no problems.
the first time im surprised the cops didn't show up, all the neighbors were looking out the windows to see what all the ruckus was. the second time i did it in my friends barn, BIG mistake, couldn't hear anything for 2 hours afterword.
Broke mine in on open headers with two dead cylinders (dizzy cap was busted) hot dang did that thing ever make a lotta noise It would occasionally backfire because of how rich it was, when it did so, it shot flames a good 5 feet back and let off a bang that hurt my head through my double hearing protection When it wasn't backfiring, it'd have flames 3 feet long coming outta each header, the collectors were glowing like cherries by the time I finished. Engine runs real good now with the EFI
Have something to stick in the collectors when you shut it down to keep cold air from traveling back up them and warping your exhaust valves. Other than that it should be fine. And as said above it's loud so maybe use ear plugs too.
If the engine by chance has a problem, can be hard to tell with open headers. The exhaust noise will make it very hard to hear the engine. Keep that in mind.
Are these new coated or painted headers? Hedman and I'm sure most others that sell painted or coated headers state that breaking in an engine on headers will void the warranty.
I can offer my experience up as proof that the heat from break in will most certainly affect the header coating. Even though I started it with manifolds, I didn't wait long enough to swap, and the glowing headers/discoloration proved that.
Cold air ? The coolest day this week is probably gonna be 107 , with humidity
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