DYNO RUN

[FRM3]

I do have both boost and pyrometer and I will watch them closely. I am told the auto trans is good to 425 hp to 500 hp, sakigt made a similar observation. I have no idea about axles.

[macster]

quote:Originally posted by FRM3

I do have both boost and pyrometer and I will watch them closely. I am told the auto trans is good to 425 hp to 500 hp, sakigt made a similar observation. I have no idea about axles.

Hmm that'll work, I think that the axles are $500.00 or so. Good luck with your new toy.

macster

[Rolo]

quote:Originally posted by FRM3

You might take a look at the dyno chart for K & N FIKP on the PTGT ---- even more to ponder with Gains from about 3650 to 5800 -5900. In fact traction being the issue that it is, if the primary gain is midrange to upper end that suits me better.

http://www.kandn.com/dynocharts/57-1531.jpg

That is not quite an apples-to-apples comparison: the Airaid graph is zoomed-in and does not show the whole RPM spectrum. Their product, to me, appears to lack substance. (Resellers need not reply since the higher profit-margin Airaid is a conflict of interest. "Cheaper" is not synonymous with "better value".) Getting the tables and letting Excel graph the two would be ideal.

Comparisons to bone-stock is pretty much irrelevant: I would like to see a dyno of stock airbox with both silencers removed and a drop-in K&N, since it appears that is what most of us have done, at least at first. For those of us who fall into that category, the question is really about the plumbing. Would replacing the bends and the third silencer yield any gains? Since the Airaid does not do this, I would wager that the K&N drop-in sans silencers configuration would dyno identically to the Airaid.

My guesses to the Airaid vs. Typhoon graphs:

- Removing the silencers and using a better flowing air filter lessens the air restrictions enough to let more air in at sufficient velocities at the bottom end, but still too restrictive > ~4500 RPM

- The Typhoon lets more air in overall, however, its unrestrictive nature does not generate sufficient velocity at the low end, but is perfect for the mid-upper end.

Basically the same concept that applies to exhaust and headers, vis-a-vis 4-1 vs. 4-2-1.

Does this sound right?

[sakigt]

Am I reading right per first chart that we start running lean after 13.9psi? So much for the 15psi myth...

[macster]

quote:Originally posted by Rolo

That is not quite an apples-to-apples comparison: the Airaid graph is zoomed-in and does not show the whole RPM spectrum.

Neither does the K&N, the AirRaid scales seem to be more relevant.

Their product, to me, appears to lack substance. (Resellers need not reply since the higher profit-margin Airaid is a conflict of interest. "Cheaper" is not synonymous with "better value".) Getting the tables and letting Excel graph the two would be ideal.

Agreed cheaper is not synonymous with "best value" concepts. I'm completely with you on this. But the idea is to get the most bang/performance for the buck.

Comparisons to bone-stock is pretty much irrelevant:

Disagree, you need to know what if any improvements that its providing you over the stock config otherwise why would you buy it?


I would like to see a dyno of stock airbox with both silencers removed and a drop-in K&N, since it appears that is what most of us have done, at least at first. For those of us who fall into that category, the question is really about the plumbing. Would replacing the bends and the third silencer yield any gains? Since the Airaid does not do this, I would wager that the K&N drop-in sans silencers configuration would dyno identically to the Airaid.


Agreed, thats exactly my take on what's happening the removal of the silencers is why the performance is increasing. Take a look at Rice Killing Gt's Dyno run. He did a before and after with the silencers removed/Stage1 and he ended up with 200WHP like I did



My guesses to the Airaid vs. Typhoon graphs:

- Removing the silencers and using a better flowing air filter lessens the air restrictions enough to let more air in at sufficient velocities at the bottom end, but still too restrictive > ~4500 RPM

- The Typhoon lets more air in overall, however, its unrestrictive nature does not generate sufficient velocity at the low end, but is perfect for the mid-upper end.

Basically the same concept that applies to exhaust and headers, vis-a-vis 4-1 vs. 4-2-1.

Does this sound right?

IMHO YUP


BTW, I have an AirRaid which I will put in this week, and a drop in K&N which is on the way.


macster

[macster]

quote:Originally posted by sakigt

Am I reading right per first chart that we start running lean after 13.9psi? So much for the 15psi myth...

On the first chart entitled "baseline lean", there was a vaccum leak due to operator error. What happened was that he started the run and then stopped it and proceeded to tell me that the car was running lean. Which I didn't buy, and told him that there must be a vaccum leak somewhere cause the car by design runs rich. So he rechecked the Dyno machine's connections and found the place where it was leaking.

macster

[Rolo]

quote:Originally posted by macster

Comparisons to bone-stock is pretty much irrelevant:

Disagree, you need to know what if any improvements that its providing you over the stock config otherwise why would you buy it?


I would like to see a dyno of stock airbox with both silencers removed and a drop-in K&N, since it appears that is what most of us have done, at least at first. For those of us who fall into that category, the question is really about the plumbing. Would replacing the bends and the third silencer yield any gains? Since the Airaid does not do this, I would wager that the K&N drop-in sans silencers configuration would dyno identically to the Airaid.


Agreed, thats exactly my take on what's happening the removal of the silencers is why the performance is increasing. Take a look at Rice Killing Gt's Dyno run. He did a before and after with the silencers removed/Stage1 and he ended up with 200WHP like I did

macster

I think we have the same take on this, just semantics are a little problematic.

What I mean to say is that for most of us, "stock" is redefined as silencers removed with a K&N drop-in since that is what the performance-minded would do at a minimum anyway.

[macster]

[/quote]

I think we have the same take on this, just semantics are a little problematic.

What I mean to say is that for most of us, "stock" is redefined as silencers removed with a K&N drop-in since that is what the performance-minded would do at a minimum anyway.

[/quote]

Bro

No problemo, I'm the one that talks and types funny. Okay, if that is stock then take compared RK's dyno readings to mine. He has the "stock configuration" and I have the K&N Typhoon. He dyno'd 200WHP.

macster

[Kirby]

I would be interested to see a followup dyno after the ECU relearns the lower intake resistance.
Will it drop the added 15 HP back down later, as 3 BAR says it will?

[sakigt]

quote:Originally posted by macster

On the first chart entitled "baseline lean", there was a vaccum leak due to operator error. What happened was that he started the run and then stopped it and proceeded to tell me that the car was running lean. Which I didn't buy, and told him that there must be a vaccum leak somewhere cause the car by design runs rich. So he rechecked the Dyno machine's connections and found the place where it was leaking.

macster

But on the rest of the charts it seems to hold true... An A/F ratio of 10 is NOT agood thing