Are you crying conspiracy? I know that car came in, strapped down, did a couple pulls and drove off. Just like every other car that dyno a baseline there. Again, just like EVERY other car that does a baseline there. The car hit 1.5bar and settled at 1.4. Do you think maybe that torque curve "suddenly arrested" because maybe it knocked? Could be?

It's christmas man, there is no conspiracy.

 

I would have been much happier to have seen that car making 275 - 280 TQ and 275 - 280 whp

I use a very accurate G force meter in conjucntion with my road tuning and that IX was consistantly just about the most powerful 91 car I have tuned without cams.

It was pulling very, very hard - I was driving it about for almost 2 full hours and it was a car which made a very strong impression on me.

I am 100% confident that it was a case of LOW boost. I tuned it at 20.5 psi of boost and with the Forge MBC it would have held a very steady boost from spool up to red line.

My data logs on this car all show 20.5 psi of boost as the peak.

With 17 psi it would be about 30 TQ less than expected and 20 less TQ at 18 psi.

The shape of the TQ curve at 3400 rpms should be a dead give away to anyone who knows what they are looking at that the boost was too low.

I am sorry if I get so excited about these matters but i take a great deal of pride in what i do and take a great deal of time to tune a car so it pains me when I see things done in regard to my work which are inaccuarte.


This is how the TQ curve should have looked

 

Done in regard to your work? Al, come on now, the car drove in and dynoed a baseline that is all. No little santa's helpers under the hood fiddling with things.

btw, that dyno u posted is a evo8, we are talking about an evo9 where I think all the tuners can say, the power delivery is very different. You have even said it yourself in multiple posts.

 

I am not crying conspiracy - I am citing lack of attention

Are you saying you watched the boost gauge as the dyno pull was made?

The TQ curve did not stop gaining and instead hold at a conatct flat level accross the power band due to knock - that is not how knock looks

Also - when I tuned that car I carefully logged the knock sensor voltage and ignition timing I would say that it was well withing margin of knock free activity particularly at a low boost level

It is always possible that the customer could have picked up a bad tank of gas before the dyno session and the car would have reverted to the low octane timing maps - but even IF that were the car the power and TQ would still be EQUAL - but a bit lower than what i previously quoted

MY TUNES all have equal power and TQ - if not higher TQ than power - there are hundreds of dyno sheets posted - UNLESS the boost is too low

 

Since you brought this up, here is my personal car on that dyno with a pretty linear power increase that you have , I guess, never seen before.

 

No your dyno sheet looks typical dyno sheet for evo 8

 

here are some examples of what a Evo IX dno sheet I tuned will look like when run on proper boost

Stock with MBC and flash 91 octane




BR350



Intake and exhuast

 

Al, did Gruppe-s or I ever say anything bad about your tune ever in this thread? I just don't understand why you are screaming bloody mary about this.

The car looks strong for this dyno. That is probably the 3rd time I have said that in this thread. I never said anything bad about the tune. Neither did Gruppe-s.

So what gives?

 

Ok, I think I see the problem here, Gruppe-S posted charts in horsepower curve mode, and you posting charts in printed graph viewer mode where the curves are always really nice and smooth and not big crayon drawn lines like horsepower curve mode.

Like this:



See how much smoother my curves look here than the horspower view I posted above of my car?

 

You still did not answer my question if you presonally observed the boost gauge during the test ?

BTW - its not about anyway saying my tune is bad

I am saying that the dyno session was not done properly and the dyno comparsion is not a relevant one

The results shown do not give an accurate representation opf the powre of that car on normal pump gas boost levels

 

Hey Al,

I posted the dyno graph solely for information purposes. The Evo9 graph was interesting because it looks more like a NA car. It could have been the MIVEC, new Evo 9 turbo, or the tune. Anyhow, my car was tuned just before the Evo 9 got onto the dyno so it was a great chance to overlap the both dyno graph to see the spool characteristics.

I want to emphasize at no point in time I attacked your tune therefore I am not sure why you are getting all upset about this thread.

Thanks,
Tom

 

Thanks for posting this comparison. I personally found it very interesting to see a back to back comparison with a tuned IX to a cammed VIII.
I have been wondering about this for some time as I have been really impressed by the IX numbers and also the fact that I have cams in my VIII.

It is, however, really unfortunate that the thread was taken so far OT by an insecure tuner

 

Ok, let's do this. Let's wait till we get some more evo 9's on that dyno before we all start freaking out. More data is always good no?

 

OMFG...Al you need to get a life

 

I am not "all upset"

I am merely very disappointed with the power level shown on that car I tuned last week so i am trying to find out what went wrong

I would suggest that to get a idea of the power band on the IX evos to look at the dyno sheets i have posted above which are more charactersic of how the TQ and HP cures should look on a car which is running and tuned properly