VIpec VS power FC vs AEM VS nistune etc etc...

[flatrate]

I talkes to aem last week, they said it would be january sometime... ive been calling them for a while... they originally told me november so i just got tired of waiting for it to release.. they did update there site, they didnt have the more than like 5 or 6 applications listed for the series 2 last week when i called

The series 2 are all black as far as i know...why dont you call em and ask

[eh?]

Type of knock sensor would matter a little and if it were a narrowband sensor it would help filter/bandpass some of the frequencies. However you have to realize a few things:

1) Almost all knock sensors have a wideband. I think it is due to cost, typically cheaper to make, and can be applied to many vehicles in the lineup.2) Even if it were "narrow" band I'm not sure how narrow it would be. It would liekyl be very difficult to have a sharp cutouf around a center frequency and I'd bet with the roll off you would still probably need some sort of a bandpass to get a shaper cutoff..

As far as I can tell you're incorrect. Yes there are narrow band sensors. They are tuned to the knock frequency of the engine. They also output higher voltage vs the flat response type at 500mV/g vs 20mV/g. Here's a bit of information i found.http://focus.ti.com/lit/an/spra039/spra039.pdf

Two types of remote sensor are being used today: tuned and broadband. Tuned or resonant sensors are usedin many low-end knock detection systems. Either mechanically or electronically, the sensor amplifies themagnitude of the signal in the frequency range of the knock-excited resonance (sometimes called thefundamental frequency). A limitation to this approach is that a different sensor can be required for eachengine type, due to variations in the characteristic frequency. The resulting part number proliferationincreases overall system costs for the manufacturer. To eliminate the cost penalty, sensor bandwidth canbe made wide enough to encompass all expected variations

Signal ConditioningKnock detection systems must perform some type of signal conditioning prior to executing the detectionstrategy. Information about the signal strength in the frequency range(s) excited by knock must be extractedfrom the measurement. If a tuned sensor with a very narrow resonant peak about the fundamental frequencyis being used, no further signal conditioning is required. In all other situations, either a filtering technique(analog or digital) or a spectral estimation technique must be used.

As far as I can tell the RB25/20 has a spike resonant KS. The RB26 does not. The spike resonant KS is obviously inferior to the flat response type because the knock freq. can change with rpm.

[ST240]

It probably isn't anything new, but for those who don't know, the cheapest and easiest way to monitor knock according to my research so far is using a bosch sensor and a laptop:

http://forums.780tuners.com/sh...ber=1

See the 5th post down by user "turboshad".

[eh?]

It probably isn't anything new, but for those who don't know, the cheapest and easiest way to monitor knock according to my research so far is using a bosch sensor and a laptop:

http://forums.780tuners.com/sh...ber=1

See the 5th post down by user "turboshad".

I'm sure most of us know about that but this discussion is really about having an aftermarket ecu take an active role in eliminating knock in such a way a factory ecu does. It's more about precaution than tuning. You can't always be listening and logging knock while you're driving.

[rb25drag]

I was surprised to not hear the Megasquirt mentioned in this thread. I know its a FULL standalone unit, But the Benifits you receive is well worth it Plus its alot cheaper than any AEM, PFC ETC

The MS3 that just came out is suppose to be the Bad boy of them all, I of course have a Ms1, which I will soon be upgrading to a Ms2, but with a Ms1 I have TOTALLY turned my car around from a Joke to actually making some power. Ya it will take a little more time, wiring, fabing etc to get it all 100% But in the end IMO Megasquirt is the best bang for the buck on the market. I have really learned a new area about tuning ETC!!

[Built2Slide]

i have got a sick hook up on a haltech E8... anyone used one and any suggestions? its for a series 2 RB in a s13.. let me know what you guys think.