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06-14-2007, 04:09 PM
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Senior Member
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Join Date: Jul 2006
Location: Evo 1 425/405
Posts: 2,901
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Det/pinking
Ever wondered whats meant by pinking?
Basically its referred to as detonation,meaning the fuel and air(mixture)that is inside the cylinders ready to be burt via the spark plug(timed) is actually igniting on its own(un-timed)from hot-spots in the cylinder.
This can be caused by numerous things like wrong grade of spark plug,wrong grade of fuel,weak air/fuel ratio,high compression etc etc
Heres a picture of what it does to the engine in a mild form
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06-16-2007, 09:53 AM
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Join Date: Jul 2006
Location: Evo 1 425/405
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One of the matching pistons
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06-16-2007, 09:57 AM
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Senior Member
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Join Date: Jul 2006
Location: Evo III,fiesta track car,56 reg vectra sri
Posts: 9,613
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what sort of boost was he running on that then pete?
any fuelling mods?
manual or ebc?
any idea what caused the det?
sorry for all the questions but that is what i want to avoid in our engine at all costs.
neil
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06-16-2007, 10:00 AM
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Join Date: Jul 2006
Location: Evo 1 425/405
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Kat this is a boggo Evo 2 with Mines ecu fitted and exhaust,thats it  |
06-16-2007, 10:03 AM
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Senior Member
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Join Date: Jul 2006
Location: Evo III,fiesta track car,56 reg vectra sri
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so does that mean the mines runs lean as standard or is it just the fuelling map is cut a bit fine?
i have heard of problems with mines before on other forums.
btw m8 its neil 
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06-16-2007, 04:38 PM
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Location: dandilion yellow e3
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interesting thread pete 8)
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fully forged bannana running 373bhp 346 torque at 1.26 bar..
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06-16-2007, 04:46 PM
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Join Date: Jul 2006
Location: Evo 1 425/405
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Quote:
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Originally Posted by E3GSR
so does that mean the mines runs lean as standard or is it just the fuelling map is cut a bit fine?
i have heard of problems with mines before on other forums.
btw mate its neil |
Neil its down to what fuel is available over in Japan from what i know,there octane is higher from the pump than our highest pump fuel so the timing and fuel maps run for higher octane fuels meaning they just det with our 98ron fuel
A colder set of plugs would help |
06-16-2007, 04:58 PM
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Senior Member
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Join Date: Jul 2006
Location: Evo III,fiesta track car,56 reg vectra sri
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aaaah right got ya.so your best bet to avoid it is to use the highest ron and the coolest plug you can get away with.
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06-17-2007, 10:37 AM
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Join Date: Jul 2006
Location: Evo 1 425/405
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Quote:
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Originally Posted by E3GSR
aaaah right got ya.so your best bet to avoid it is to use the highest ron and the coolest plug you can get away with.
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Yes that would be the ideal way but i still wouldn't want to run large amounts of boost even with that set up |
06-18-2007, 09:00 PM
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Senior Member
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Join Date: Aug 2006
Location: Class A4 Evo II RS sprint car
Posts: 242
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Interesting pics Pete. Did that cause a blow up?
Quick question: can/do eng ines det when not under load?
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