Fitted the KnockLite

[EspenW]

Finally got around to installing the TurboXs Knocklite in my RS2.
Hooks up to the signal wire from the knock sensor and indicates knock with a flashing LED. Mild knock is indicated with an amber light, while severe knock is indicated with a red light. Also doubles as a shift light (really nice, actually).
Running a competing KnockSense unit in my 11:1 Golf. That one lights up as a x-mas tree on 99 octane or less, but keeps silent with that cool 104 octane E85. The downside to the Knocksense is that it isn't rpm compensated, so it lights up at high rpm from engine noise.

The Knocklite takes an RPM input, and generates a noise vs. rpm curve when free revving the engine. This to distinguish knock from engine noise at various rpms.
I have programmed the shift light (green light) to flash at 7000rpm. This is very handy with an engine that pulls like mad way past 7K, and having a rev limiter that isn't always on duty...

The Knocklite is cylindrical, approx 20mm x 60mm. I placed it inside the nearside vent, velcroed to the airduct. Totally stealth, but the flashing light is visible thru the vent-cover-thingy

[terrybullwon]

I am making my own atm, Barry sent me some plans but i have had some help to make it another way, using this forumla it should be very accurate

(KHz) = 1800 / (Pi x Cylinder Bore in mm

[S2central.net]

James - whats the theory behind that formula ?

[terrybullwon]

James - whats the theory behind that formula ?

Paul, not my key subject. I am having help on this but the formula can be used to get the detonation resonant frequency for a specific engine. I have aimed at central value of 6500Hz.

[Jonas_R]

Deleted

[S2central.net]

Sorry to dig up an old thread, but Espen - how did you get on with the Knocklite - can you trust it or is it just a bit of a gimmick ?

[gnutz2]

If your interested Paul, i run a phormula ks-4, the model which has a 0-5v output.

Overall its a good piece of kit but past about 6500rpm all i pick up is engine noise, below this its good and will pick up knock. My redline is 7750 so thats a big chunk of my powerband.

[EspenW]

Sorry to dig up an old thread, but Espen - how did you get on with the Knocklite - can you trust it or is it just a bit of a gimmick ?

Yep, still have it installed. I run the RS2 on E85, so not even close to knocking, but it reads the signal from the factory knock sensors, so it will light up in case of trouble.
The shiftlight function is handy as well.

As I mentioned at the start of the thread (6 years ago ) I run a Knocksense in the Golf, on a standalone Bosch knock sensor (that came with the 2L Audi ABK block that I run in the Golf). I sometimes run that car on petrol, and the Knock Sense lights up when it is supposed to.

[S2central.net]

Thanks for the update espen - going to look at these again in the foreseeable future.