[SennaZ]

Well, let me total up the damages:

Let's see, I have one of the disciples thinking that cylinder pressures must be more than 28.7 psi, two who think they must be in the low thousands, and their idiot leader (and I mean this in an endearing sense from his sig) apparently agreeing but thinking that a 14 psi basketball has something to do with a modern turbocharger. Oh yeah, I forgot about the part the he (the leader) can easily beat out a state of the art ecu by listening to knock events on this car’s stereo system.

OK, I'm convinced... now, I just forgot about what - lol.

[Litos]

Originally Posted by themyst

Honestly you'll be fine in 5-6 months. You'll also be fine 2 years from now. The question is how you'll be around 100-120k miles. The effects of knock are cumulative.

i could also agree with this statement....

[Jeff@TopGearSolutions]

Originally Posted by SennaZ

Well, let me total up the damages:

Let's see, I have one of the disciples thinking that cylinder pressures must be more than 28.7 psi, two who think they must be in the low thousands, and their idiot leader (and I mean this in an endearing sense from his sig) apparently agreeing but thinking that a 14 psi basketball has something to do with a modern turbocharger. Oh yeah, I forgot about the part the he (the leader) can easily beat out a state of the art ecu by listening to knock events on this car’s stereo system.

OK, I'm convinced... now, I just forgot about what - lol.

Wow try reading MR know it all..
He said BASKETBALL SIZE <----- SIZE... S I Z E

Meaning a turbo the size of your head. Gt42R perhaps.

Get a clue LOL

I'm convinced you have no reading comprehension, that we can all be sure of.

[atlharry]

Originally Posted by SennaZ

Wrong, sorry!

ok ok, I said I THOUGHT you were a little low, but you weren't. That range is probably pretty accurate. And the HPFP remark was totally off the wall after further thought

See this study - Computational model for cylinder pressure

Keep in mind that the results were for a non-FI engine.

[JB4-335]

Originally Posted by Clap135

Post the logs showing ambiant then. What front mount do you have and how long was the actual log?

I know most of you chose to ignor it but here it is again.

My JB4 log. temps in the high 80's and stock front mount. 98RON same as 93MON for you guys in the US.

That's yet another healthy JB4 log.

[Morpheus]

Originally Posted by shifterboy45

this thread has turned into a train wreck... unstoppable at that too

when i first started working on cars i was only allowed to run for tools --
once i knew my tools, i worked up to r/r carbs and intake manifolds --
once i could (without fail) replace components in the engine bay, no extra parts left -- my boss let me pull engines and trannys for a while.

after a year or so of tedious lifting and reassembly of cylinder heads, i move to learning what makes an engine run -- my wife can atest that there was not a car that was broken, running bad, failed smog that i could get to run the way it was designed (up to the limits of its mechanicals). i studied cam profiling, was taught about cylinder head porting by some of the great untold street racer in SoCal. -- but that was only the tip of the iceberg, there is so much to learn everyday is overwhelming at times.

i feel sorry for the guys that come to this forum looking for a "rock" solid answer, because they are too busy to put in the time to pay the cost--

what i run may or may not work for you, its like brush stokes on a canvas -- you will know and feel when it all comes together. til then you will be lost in you own opinions and swayed by fads that come and go --

once you have made horsepower on your own, youll be a new person -- less opinionated and better able to define what is true or total B/*

Let me guess: You live your life one quarter of a mile at a time. For those ten seconds or less, you're free....

[atlharry]

Originally Posted by JB4135

I know most of you chose to ignor it but here it is again.

My JB4 log. temps in the high 80's and stock front mount. 98RON same as 93MON for you guys in the US.

That's yet another healthy JB4 log.

What map was this? beta autotune map?

[Bagelfast]

Originally Posted by themyst

#1 I don't see how mpg has anything to do with this discussion. #2 you clearly don't datalog and #3 people are boosting 19 psi, myself included. We just don't do it on pump gas.

IF there is so much knock as some of you are saying and it leads to detonation so many it times, i mean, detonation cant be that weak.. If it detonates, its is detonating and doing damage, no?
Your car is gonna show signs, smoking, less mpg, unstable idle, etc.
also,I do datalog my car?

Is there a way the car detonate a little? I was under the impression that there was only one way detonation happens and its a bad way, and in comes in a one way form, which bring damage either way.

[JB4-335]

Originally Posted by atlharry

What map was this? beta autotune map?

No. It was a map 2 run. Not an autotune map.

[atlharry]

Originally Posted by 1LUMI335

IF there is so much knock as some of you are saying and it leads to detonation so many it times, i mean, detonation cant be that weak.. If it detonates, its is detonating and doing damage, no?
Your car is gonna show signs, smoking, less mpg, unstable idle, etc.
also,I do datalog my car?

Is there a way the car detonate a little? I was under the impression that there was only one way detonation happens and its a bad way, and in comes in a one way form, which bring damage either way.

you might be thinking of pre-ignition. Knock does come in varying flavors of damage.

[Bagelfast]

Originally Posted by atlharry

you might be thinking of pre-ignition. Knock does come in varying flavors of damage.

I might be... Knock i was thinking leads to detonation, and detonation which i might have confused for pre-ignition only comes in hard and in a bad way.
Maybe someone can chime in for sure and double that.

[Litos]

Originally Posted by JB4135

No. It was a map 2 run. Not an autotune map.

mod list ??

[JB4-335]

Originally Posted by Litos

mod list ??

Just the JB4 and DCI at the moment.
Downpipes going in next week.

[Litos]

Originally Posted by JB4135

Just the JB4 and DCI at the moment.
Downpipes going in next week.

holy crap.

[maui86]

Originally Posted by JB4135

I know most of you chose to ignor it but here it is again.

My JB4 log. temps in the high 80's and stock front mount. 98RON same as 93MON for you guys in the US.

That's yet another healthy JB4 log.

What two gears are these logs of?

[JB4-335]

Originally Posted by Litos

holy crap.

LOL!

I might add that I'm almost at sea level.

[shifterboy45]

Originally Posted by Morpheus

Let me guess: You live your life one quarter of a mile at a time. For those ten seconds or less, you're free....

-- no, but i did grow up in an era where there was a speed shop on every major corner, and i was within minutes from Lyons, Terminal Island and Irwindale Raceway -- if you can remember that far back -- of if they still stood, depending on when you were born.

all this talk -- is just that bench racing, nothing more. most guys here havent seen the internals of the engine, or know how to t/shoot a no start, rough running condition or stall at idle. how the hell are you supposed to understand what makes a car go if your just a parts-changer?

ive done this for a living for a while, and i always loved to hear from the guy that wants to go faster -- my question is if your on a budget, learn .. if money is no object (which is talked about constantly --value for this, price for that) spend till your hearts content.

yes??

[atlharry]

Originally Posted by shifterboy45

-- no, but i did grow up in an era where there was a speed shop on every major corner, and i was within minutes from Lyons, Terminal Island and Irwindale Raceway -- if you can remember that far back -- of if they still stood, depending on when you were born.

all this talk -- is just that bench racing, nothing more. most guys here havent seen the internals of the engine, or know how to t/shoot a no start, rough running condition or stall at idle. how the hell are you supposed to understand what makes a car go if your just a parts-changer?

ive done this for a living for a while, and i always loved to hear from the guy that wants to go faster -- my question is if your on a budget, learn .. if money is no object (which is talked about constantly --value for this, price for that) spend till your hearts content.

yes??

Where do you spray the starting fluid??? and there's no idle adjusting screw thingy anywhere on this damn thing...

[ExpensiveTaste]

Wow it took me 2 hours to get caught up in this thread, only to find out there were another 2 pages after I was done. And still, no new info that leads us to a new conclusion that all tunes don't ride the knock sensor in various conditions...This thread is obviously about how significant the "knock" events are that decrease timing and how often they happen. Please try and post factual data showing these two arguments against how well the ECU controls timing.

[shifterboy45]

Originally Posted by atlharry

Where do you spray the starting fluid??? and there's no idle adjusting screw thingy anywhere on this damn thing...

i could tell you some stories about me and starting fluid -- whoaaaa!!! wink wink

also the time i was in Las Vegas and had a Ramcharger Pickup backfire and smoke my eyebrows --

never look down the secondaries on a flooded Thermo-Quad

[JB4-335]

Originally Posted by maui86

What two gears are these logs of?

2nd and 3rd.

Focus on that 3rd gear ignition curve.

[Mike@N54Tuning.com]

Originally Posted by JB4135

I know most of you chose to ignor it but here it is again.

My JB4 log. temps in the high 80's and stock front mount. 98RON same as 93MON for you guys in the US.

That's yet another healthy JB4 log.

I posted this log of autotuning in action on 91 octane awhile back but didn't get any comments either.



Mike