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Author loadsa exhaust carbon....
Chris E
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Registered: 7th Jul 03
Location: Birmingham
User status: Offline
27th Aug 03 at 17:07   View User's Profile U2U Member Reply With Quote

As above and I mean loads of it - its leaving alot of it on my rear combat 2 bumper. Got a powerflow exhaust fitted and the engine (1.2 8v) has been decoked about 2 months back coz it was doing it then.

But now its even worse. Anyway to sort this out?

I know carbon build up happens, but not as much as this!

Appreciate any help, cheers
MikeH
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Registered: 3rd Apr 03
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27th Aug 03 at 17:10   View User's Profile U2U Member Reply With Quote

Maybe the engine is running rich.
Adam_lee
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Registered: 23rd Apr 02
Location: Manchester
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27th Aug 03 at 18:14   View User's Profile U2U Member Reply With Quote

I had this with my corsa. It was the performance filter. It tricks the engine into running ritch and hence you get carbon'd to fcuk. I am guessing youve got a piperx or k&n filter, take it off and see the difrence.
MikeH
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Registered: 3rd Apr 03
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27th Aug 03 at 19:44   View User's Profile U2U Member Reply With Quote

But running rich makes the car move quicker doesn't it?
Adam_lee
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Registered: 23rd Apr 02
Location: Manchester
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27th Aug 03 at 21:17   View User's Profile U2U Member Reply With Quote

Not really. The best performance will come from stoichiometric combustion. I.e. the optimum air fuel ratio where all fuel is burnt and no excess oxygen or petroleum is left. Over fueling is just a waste and will not do a thing for the performance of the car. I could go on and bore you with the science of this statment to back up my claim, but i'll spare you as I really cant be arsed
luca2020
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Registered: 26th May 02
Location: Maidstone, Kent
User status: Offline
27th Aug 03 at 22:50   View User's Profile U2U Member Reply With Quote

i have same problem, and have a k&N panel filter, ill take it out and see what happens, thanx mate!
Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
User status: Offline
27th Aug 03 at 22:52   View User's Profile U2U Member Reply With Quote

lol, panel filter wont do it, nor will an induction kit which sucks in hot air, lol
MikeH
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Registered: 3rd Apr 03
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27th Aug 03 at 23:02   View User's Profile U2U Member Reply With Quote

Adam_lee: i'm actually a 3rd year Mechanical Engineering student at uni

I understand exactly what you mean actually

I could calculate it! hehe
Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
User status: Offline
27th Aug 03 at 23:04   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by MikeH
But running rich makes the car move quicker doesn't it?


not necessarliy, actually it can slow you down.

 
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