Finally got a Dyno

[hisandherturbo]

Well, what does everyone think? all I was able to due was tune to no knock!!! Got that, Now all I need to do is get some power out of it!!!

[AWDFury]

Nice man! Can't wait to see what you get in the 1/4 mile Sunday!!

[hisandherturbo]

TY! Me either, kinda scared though, I think my 12.5 expectations are too high, but we'll see

[AWDFury]

If you look in the timeslips section Mitchel63 has 380 whp and he is pulling 12.1 in the 1/4. You should be able to hit that 12.5!

[hisandherturbo]

is his SAE or uncorrected???? mine is SAE my uncorrected is only 275 :(

[mitchel63]

Mine uncorrected was like 298 or something....12.5 is very doable!

Mitch

[hisandherturbo]

well, awesome!!! thank you very much for the vote of confidence. NOTHING LIKE A LIL PRESSURE NOW!!!!!!!! Think if I can get some more 1.71 60' and now that I have a dyno curve I am changing my shift point from 8000 to around 7500 I have my fingers crossed, looking forward to seeing eveyone I met before and meeting new faces, and seeing a lot more personal goals met.......... GOOD LUCK TO EVERYONE!!!! MAY A DSM WIN THE HEADS UP!!!!

[hisandherturbo]

well, close but no cigar............... :( Gunna go and give it another shot on wednesday!

[AWDFury]

aaaaaaaaaaaaaahhhhhhhhhhhhhhhhhhh!!!!!!!!!!!!!!! 5 thousandths of a second is not even a blink of an eye.. Without the NLTS what do you think you would get? I am just trying to get a ball park of where I would be when my car is tuned.. But yeah that .005 is way to close!!

[hisandherturbo]

well, I am just using the clutch cut, not the whole anti-lag thing, but if you have a tranny that is able to "speed-shift" NLTS then it's no different, but if your tranny can't handle that, I would say it's a HUGE difference!!!

[AWDFury]

Alright! Man show show no mercy on Wensday get that extra .005 knocked off!!!

[AWDFury]

Does Mac Autosports have a tool to see how much one is knocking when they tune the car?

[Hal]

There is no "tool" that you can use to show "knock".

There are aftermarket knock detection systems like J&S, but all they do is react to a "noise" level based on sensor input.

The ECU knock filtering takes into account not only the knock sensor signal, but the crank position and other factors.

Only specific noise, at specific time is considered to be knock by the ecu.

Only "knock" as detected by the ECU results in timing retard.

The only accurate way of measuring true knock levels is to get it from the ECU, because it is what decides when and if there is knock.

Hal

[fusionsport]

I believe MAC has a set of "det cans" which is an electronic ear allowing the user to listen for knock.

As an interesting note, I have found that an experienced tuner can detect knock long before even the most sophisticated ECU based knock system. In a dyno session with several Porsche cars we were able to determine knock before the ECU, amid all of the extraneous engine noise in a Porsche engine. Porsche uses thier "Electronic Octane" knock sensing program, which is an extremely fast acting and sensitive knock control system. The trick is in knowing what to listen for.