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***waynne*** · 06-05-2008, 08:22 AM

I agree that carbon is bad. It causes hot spots in the engine. I think HDI was making regference to the previous post. I think there is a commonly held belief that carbon increases (improves) your engine compression preventing blow-by in the cylinders. In reality though I don't think a layer of carbon in the cylinder will make much if any contribution to the compression.

06-05-2008, 08:22 AM	#9 (permalink)
*waynne* Administrator TC Founder Car: A4 2.0T Fsi Quattro Join Date: Nov 2005 Location: Deal, Kent UK Posts: 28,784	Re: Alcohol/water injection turbo diesels. I agree that carbon is bad. It causes hot spots in the engine. I think HDI was making regference to the previous post. I think there is a commonly held belief that carbon increases (improves) your engine compression preventing blow-by in the cylinders. In reality though I don't think a layer of carbon in the cylinder will make much if any contribution to the compression. _______________________________________________ When it comes to pricing - the oil companies have us all over a barrell!