Running In.....With CAT or De-CAT ?
21 February 2005, 11:34 AM
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Running In.....With CAT or De-CAT ?
Just about to start running in a fully rebuilt engine. (MY 95 UK Turbo)
Up until the big end went, I was running a H&S de-cat downpipe, standard cat centre, H&S backbox.
Question is, would it be wise to do the running in with the standard cat downpipe back on, OR, with the H&S de-cat downpipe ?
Or doesn't it make any difference ?
Cheers
Steve
Up until the big end went, I was running a H&S de-cat downpipe, standard cat centre, H&S backbox.
Question is, would it be wise to do the running in with the standard cat downpipe back on, OR, with the H&S de-cat downpipe ?
Or doesn't it make any difference ?
Cheers
Steve
21 February 2005, 02:56 PM
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Thanks Andy......
anyone else got any views ?
just wondered if the decat might have any adverse effect.....
it has been suggested that strictly speaking I should have a remap ?
anyone else got any views ?
just wondered if the decat might have any adverse effect.....
it has been suggested that strictly speaking I should have a remap ?
22 February 2005, 01:12 PM
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Downpipe or remap shouldn't have any effect during run in, since I assume you will be running it in gently with running in oil, so no boost to speak of.
Once fully run in, you may well want to have a remap - why did the big ends go in the first place?
Once fully run in, you may well want to have a remap - why did the big ends go in the first place?
22 February 2005, 01:17 PM
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Don't really know why it went (No.3 big end).......maybe just wear and tear.....120,000 miles ?
But I have a niggling thought in the back of my head, that the de-cat downpipe might not have helped matters. It was fitted about 2000 miles before the big end failure. Hence my worry about re-fitting the pipe.....don't want to kill a fresh engine.
Car is always run on optimax.
Steve
But I have a niggling thought in the back of my head, that the de-cat downpipe might not have helped matters. It was fitted about 2000 miles before the big end failure. Hence my worry about re-fitting the pipe.....don't want to kill a fresh engine.
Car is always run on optimax.
Steve
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