Amanda-Jane

lol @ SiPie !!!!!!

The wee bit on top of the dash is where Scooby lives, he even talks to you

AJ

SCOSaltire

looks good
ozzy,
please let me know if u get a price for the kit(s)

ozzy

Will do. I'll chase Mike @ Scoobymania tomorrow.

Stefan

CataIunya

Back to the original question.........I thought this was just a side effect of having a full de-cat. Fuel exploding in the hot exhaust pipe causing the pops and bangs, you hear it on lift off as unburnt fuel gets dumped into exhaust. I hear the occasional pop on my cat back system......Totally normal I thought

PaulMc

SB,

At the Autosport Motorsport show I visited the Link stand and was shown a knocklink sensor in the form of a gauge and looked just like a boost gauge. I thought it was rather cool looking. As knock becomes more detectable the needle obviously moves around but the backlight on the dial goes from green to blue to red. Cool . Speak to BR Developments I think they will know about it.

LG John

Ever get the feeling Paul didn't read the whole thread

Cheers anyway mate

lucky_strike

I'd appreciate some technical input to help answers some questions I have (thinking about de-cat up and down pipes to go with my PPP kit).

Why should a knocklink type unit be needed whejn running full de-cat. Are there side effects that I should be considering with this modification (I do about 24000 miles a year in my Scooby - although only had it since Nov 02 and done 4500 mile so far). Will high milage be a problem with full de-cats?

Thanks.
Richard.

john banks

Don't see the problem with decats on non-STis/P1s. But standard engines do go, if I had any turbo petrol engine standard or modified car I would fit a knocklink or similar knowing what I know now.

LG John

Even on a standard car? Why? Share what you know now

lucky_strike

Is the concensus then that the standard knock senor and ECU control of it is not sufficient when the exhaust is upgraded to free-flowing and no cats?

But is detonation/knocking not usually present under high-load and low rev's scenarios, can driving differently help? In my mind I would have thought free-flowing would have help the ignition system and engine generally run free'er and with less restriction.

Popping and banging on throttle lift-off is not the same as detonation is it? This is unburnt fuel in the exhaust not in the conbustion chanbers although I guess any not in the exhaust could be in the chambers and lighting on compression stroke not anything else...

Don't think I understand. Help please? Opinions from people running de-cat (and PPP or similar) with or without problems please!

john banks

The reason is simple, if the wind blows the wrong way or Scooby is in a bad mood for some reason it just doesn't bother correcting or worrying about knock!

Hong Kong Phooey

ozzy,
can u post the pics of the Scoobymania one here?
Is there a price yet?

LG John

PMSL

You have to be joking!!! Why does it do that???!

ozzy

Hong Kong Phooey YHM.

Stefan

ozzy

Kenny,

I think the ECU uses women's logic to work out knock correction; seems like it just decides what to do by the moood it's in.

The slightest of-the-cuff comment and it'll fly off the handle with no warning. And never let it here you say it's got a fat @rse especially any bug-eye owners out there.

Stefan

lucky_strike

Thanks for the solid and very technical feedback....all my fears have gone away. Once I sort out the female mind I can get a full de-cat kit!

Hong Kong Phooey

ozzy, yhm, but ignore it, the pic worked.
thanks.

kart_man

Kenny,

Here's another solution to your cosmetic concerns about the knocklink....

DIY MODS

Check the rest of the page too - he's done some good stuff...

Has anyone got a price for the new dial type knock link yet ??

LG John

cheers kart-man...looks like an interesting site